All about Air Handling units and how much they are sustainable!

The AHU is normally a large metal box which connects to the ductwork that channels conditioned air throughout a building and returns it back to the AHU. Inside this large metal box there are a number of  ventilators with different jobs to do.

AHU’s supply fresh air to the room. The units take air from the outside, filter it and recondition it (cooled by a cooling coil or heated by a heating coil).

Where hygienic needs for air quality are lower, the air from the rooms can be re-circulated for energy saving purposes. The AHU is usually fitted with a cooling/heat exchanger for increasing capacity and energy saving. 

Air Handling Unit Repair

How they work

The easiest way of explaining how AHUs work is to run through the components and their functions:

Housing 

Usually made of metal and painted to prevent corrosion, the housing contains all the components of the AHU. The coil and fans are insulated in the housing to prevent condensation.

Filters

The filters are used to remove contaminants from the air.  Different filters are available for different AHUs:

  • HEPA filters are often used where businesses have particular concerns for their staff and sensitive equipment as these filters are efficient at removing airborne bacteria and can remove viruses from the air
  • Bag filters provide a medium to high efficiency of filtration
  • Panel filters provide a minimum low efficiency filtration
  • Electrostatic filters use highly charged electrodes that ionise the air
  • Carbon filters remove smells and gases

Fan

The fan within the AHU moves the air to different sections of the building. There are a variety of fans available (forward Curved, Backward Curved, Airfoil and Backward Inclined). The designer will use software to select the right fan, depending on the static pressure and air volume in the AHU.

Over the years technology is improving to make better use of energy and follow the greener agenda. As a result of this the variable air volume (VAV) system is popular as, depending on the need, the volume of the air being discharged can be varied. If the system load and thermal load are low, the speed of the fan will be low and if the loads are  high the fan will speed up. Instead of a conventional motor a frequency inverter varies the speed of the fan for better control. 

Mixing box

The mixing box is the location where the outside air and the air which has been returned are mixed and the perfect combination of air is sent to the space for conditioning. This is a simple method of heat recovery.  Several other methods are available such as thermal wheel and cross plate heat exchangers, which method to use will depend on the application.

Cooling coil

A cooling coil dehumidifies and cools the air. Depending on the AHU system, either a chilled water cooling coil or a direct expansion cooling coil will be used.

Humidifiers

During the winter, internal air can become very dry and uncomfortable and this is where humidifiers come in handy: 

Some common humidifiers include:

  • Steam Grid Type — the water is heated up to produce the steam 
  • Steam Pan Type which heats up water using a heating coil and pan. The water evaporates and creates humidity
  • Spray Type which has a spray nozzle that sprays water

Types of air handling unit

There are two main types of air handling unit — the ‘blow-through’ and the  ‘draw-through’.

The blow-through AHU has a fan which blows the air through the mixing box, cooling coil and filters before it goes to the ducting network. 

The draw-through AHU can be vertical or horizontal. It has a fan which pulls the air through the mixing box, cooling coil and filters before it goes to the ducting network.

You can also get different sizes of AHU. Terminal units are small, simple units, also called fan coil units or blower units. These units may only include a coil, blower and air filter. A makeup air unit (MAU) is a larger AHU that does not recirculate the air and conditions 100% outside air.  This unit is also known as a fresh air handling unit (FAHU).

Other considerations 

  • Installation and commissioning: do have the AHU installed by the best engineers and do not skimp on commissioning, it will save you money.
  • Factory made or made on site (flatpack): there is always a solution that fits.  
  • Refurbish units to breathe new life into old units.
  • Reconfigure or upgrade components to improve operating efficiencies and save energy. 

Energy Efficient & Sustainable Air Handling units

Sustainable Air Handling Units

By making sustainable decisions upfront, air handling units that help companies yield energy savings for the life of their buildings, lowering overall costs and improving their bottom lines.

Sustainable AHUs are not only built to last, they are designed to reduce the environmental impacts and optimize energy use from today’s buildings. We incorporate a wide range of sustainable air handling features and processes into our products, including:

  • Low leakage fit-and-finish construction
  • Hygienic unit design and wash-down construction
  • Recycled – and recyclable – materials

The result for our clients is:

  • High energy efficiency in operations
  • Minimum maintenance requirements and replacement costs
  • LEED certification opportunities
  • Greater environmental stewardship

PM Modi calls for 100 day Campaign for water conservation

Prime Minister Narendra Modi said there was a need to start conserving water right away and that the Jal Shakti Ministry would be launching a 100-day “catch the rain” campaign soon right from 1st March 2021 onwards.

Mr. Modi was speaking during his monthly radio address, Mann Ki Baat, when he said there was a need to have collective responsibility with regard to water conservation.

“In most parts of India, rainfall begins in May-June. Can we right away start a 100-day campaign for the sake of cleaning up water sources around us and conserving rainwater? With this very thought in mind, in a few days from now, Jal Shakti Abhiyan ‘catch the rain’ is being initiated by the Jal Shakti Ministry,” he said, according to the English translation of his address provided by the government.

Prime Minister Narendra Modi on Sunday said there was a need to start conserving water right away and that the Jal Shakti Ministry would be launching a 100-day “catch the rain” campaign soon.

In this regard, the Union Jal Shakti Ministry is also launching “Catch the rain” campaign and its main theme is “catch the rain, where it falls, when it falls”, he said.

“This is the best time to think about water conservation in the summer months ahead,” Modi said.

Let’s work together in this regard and support in water conservation & harvesting and prepare ourselves for the Extreme summer and then harvest the water during the Monsoon season.

To know more about water efficiency products check here – https://econaur.com/product-category/water-efficiency/

Urban Heat Island Effect and how to mitigate their effects!

“Urban heat islands” occur when cities replace natural land cover with dense concentrations of pavement, buildings, and other surfaces that absorb and retain heat. This effect increases energy costs (e.g., for air conditioning), air pollution levels, and heat-related illness and mortality.

Climate change will likely lead to more frequent, more severe, and longer heat waves during summer months.

  • The city of Chicago could see 30 more days per year rise above 100 degrees Fahrenheit (°F) under “high” greenhouse gas emissions scenarios.
  • Under lower emissions, Chicago’s new summer heat index could increase to around 93 °F by the end of the century—similar to current summer conditions in Atlanta, Georgia.

City officials worry that intense summer heat could lead to uncomfortable conditions for residents, as well as reduced tourist attraction in summer months.

Extreme heat events often affect our most vulnerable populations first.

Trees, green roofs, and vegetation can help reduce urban heat island effects by shading building surfaces, deflecting radiation from the sun, and releasing moisture into the atmosphere.

Elevated temperatures from heat islands can affect a community’s environment and quality of life in multiple ways.

Increased Energy Consumption

Heat islands increase demand for air conditioning to cool buildings. In an assessment of case studies spanning locations in several countries, electricity demand for air conditioning increased approximately 1–9% for each 2°F increase in temperature. Countries where most buildings have air conditioning, such as the United States, had the highest increase in electricity demand.This increase demand contributes to higher electricity expenses.

Heat islands increase both overall electricity demand, as well as peak energy demand. Peak demand generally occurs on hot summer weekday afternoons, when offices and homes are running air-conditioning systems, lights, and appliances. During extreme heat events, which are exacerbated by heat islands, the increased demand for air conditioning can overload systems and require a utility to institute controlled, rolling brownouts or blackouts to avoid power outages.

Elevated Emissions of Air Pollutants and Greenhouse Gases

As described above, heat islands raise demand for electricity in summer. Companies that supply electricity typically rely on fossil fuel to meet much of this demand, which in turn leads to an increase in air pollutant and greenhouse gas emissions.

These pollutants are harmful to human health and also contribute to complex air quality problems such as the formation of ground-level  (smog), fine particulate matter, and  acid rain. Increased use of fossil-fuel-powered plants also increases emissions of greenhouse gases, such as carbon dioxide, which contribute to global climate change.

In addition to their impact on energy-related emissions, elevated temperatures can directly increase the rate of ground-level ozone formation. Ground-level ozone is formed when nitrogen oxides and volatile organic compounds react in the presence of sunlight and hot weather. If all other variables are equal, such as the level of precursor emissions in the air and wind speed and direction, more ground-level ozone will form as the environment becomes sunnier and hotter.

Compromised Human Health and Comfort

Heat islands contribute to higher daytime temperatures, reduced nighttime cooling, and higher air pollution levels. These, in turn, contribute to heat-related deaths and heat-related illness such as general discomfort, respiratory difficulties, heat cramps, heat exhaustion, and non-fatal heat stroke.

Heat islands can also exacerbate the impact of naturally occurring heat waves, which are periods of abnormally hot, and often humid, weather. Sensitive populations, such as children, older adults, and those with existing health conditions, are particularly at risk during these events.

Excessive heat events, or abrupt and dramatic temperature increases, are particularly dangerous and can result in above-average rates of mortality. From 2004 to 2018 the Centers for Disease Control and Prevention recorded 10,527 heat-related deaths in the United States, an average of 702 per year. These numbers include deaths where heat was the underlying cause and deaths where heat was a contributing cause.

Impaired Water Quality

High temperatures of pavement and rooftop surfaces can heat up stormwater runoff, which drains into storm sewers and raises water temperatures as it is released into streams, rivers, ponds, and lakes. Water temperature affects all aspects of aquatic life, especially the metabolism and reproduction of many aquatic species. Rapid temperature changes in aquatic ecosystems resulting from warm stormwater runoff can be particularly stressful, and even fatal, to aquatic life.

One study found that urban streams are hotter on average than streams in forested areas, and that temperatures in urban streams rose over 7°F during small storms due to heated runoff from urban materials.

Green infrastructure is one option to cool stormwater runoff and improve water quality. It can include the use of downspout disconnections, rain gardens, planter boxes, bioswales, permeable pavements, green streets and alleys, green parking, and green roofs; as well as land conservation efforts.

To reduce the urban heat island effect:

  • Build green infrastructure improvements into regular street upgrades and capital improvement projects to ensure continued investment in heat-reducing practices throughout your community.
  • Plant trees and other vegetation—Space in urban areas might be limited, but you can easily integrate small green infrastructure practices into grassy or barren areas, vacant lots, and street rights-of-way.
  • City officials in Louisville, Kentucky, recently awarded a $115,700 contract for a tree canopy assessment to help the city use trees to address urban heat, stormwater management, and other concerns. “Knowing where we lack canopy, down to the street and address level, will help our efforts exponentially,” remarked Mayor Greg Fischer.
    • Make traditional water quality practices serve double duty by adding trees in or around roadside planters and other green infiltration-based practices to boost roadside cooling and shading.
    • Transform your community one project at a time by planting native, drought-tolerant shade trees and smaller plants such as shrubs, grasses, and groundcover wherever possible.
  • Build green roofs—Green roofs are an ideal heat island reduction strategy, providing both direct and ambient cooling effects.  In addition, green roofs improve air quality by reducing the heat island effect and absorbing pollutants.

Understand the need of increasing the Temperature of our Air Conditioners !

Keep your AC temperature at moderate to high levels in order for power saving as well as cutting your electricity bill

A move by the power ministry to increase the default temperature in air conditioners to 24 degree celsius will help you save almost Rs 4,000 on annual electricity bills, apart from reducing energy consumption.

The Ministry of Power (Bureau of Energy Efficiency) has said that all room air conditioners (AC) will have to ensure a default temperature setting of temperature in the appliances at 24 degree celsius from January 1, 2020.

How you save

A common misconception is that setting the thermostat at 18 degrees will cool down a room faster. However, that’s not true. It will take the same amount of time for the room to reach 26 degrees—which is significantly cooler than the average current outdoor temperature of 40 degrees in Delhi—whether you set the temperature at 18 degrees or 26 degrees. Of course, 18 degrees will be much cooler than 26 degrees, if that’s what you prefer.

The Bureau of Energy Efficiency (a body of the Ministry of Power) has said that the reduction in AC temperatures to 24 degrees from the conventional 18-21 degrees can result in 24 percent of energy savings.

Countries like Japan and the US have already put in regulations for the functioning of air conditioners. Japan introduced a default setting for air conditioners at 28 degrees celsius. In the United States, some places have enforced limits on lowering the air condition beyond 26 degrees celsius.

The Bureau of Energy Efficiency estimates that, considering the current market trend, the total connected load in India due to air conditioning will be about 200 GW by 2030. This may further increase as only 6 percent of households are using one or more air conditioners at present.

If the measures are followed by all consumers, India can save about 23 billion units of electricity. The total installed capacity of air conditioner is about 80 million TR (tons of refrigeration or amount of cooling required to convert 1000 Kg of water into one tonne of ice in 24 hours), which will increase to about 250 million TR in 2030. The demand for room ACs in India is expected to touch one billion units by 2050, compared to 6.5 million units right now. On the other hand, ACs account for 10 percent of global energy consumption.

Would it be feasible to have the AC temperature at 24 degrees in a humid weather?

The Normal human body temperature is 36-37 degree celsius. Hence, to take a temperature closer to 24 degrees is considered to be healthier for individuals in tropical regions like India. The ministry says that, as per the comfort chart, temperatures up to 25 degrees are quite comfortable for human body, along with the desired humidity and air movement values.

According to ASHRAE Standard 55-2013 Thermal Environmental Conditions for Human Occupancy, The thermal comfort zone is the condition of mind which expresses satisfaction with the thermal environment. This condition is defined using temperature, humidity level and air flow experienced by the human body, apart from individual parameters such as clothing and metabolism. Technical analysis indicates that, in order to achieve the desired comfort level at a steady state, the temperature setting can be 24-25 degree celsius.

Things to remember

The power consumption of an AC doesn’t just depend on the temperature you set it at. How much power your AC consumes depends on its star rating, the outside temperature, the hours of usage, size of the room, number of people in the room, insulation in the room, etc.

If you are setting the AC at low temperature and using a quilt or a blanket, it is not only unhealthy, it is also pure wastage of energy.

Normal human body temperature is approximately 36-37 degrees and putting your body through extreme high temperature on the outside and low temperature on the inside can affect your health.

So increase the temperature of your AC and keep it at moderate levels in order to not only conserve power, but also save on electricity bills.

To choose which is better between Cement brick & clay brick ?

Building your new home is one of the biggest investments you will ever make and, regardless of your budget, the exteriors of the home deserve more attention than the interiors – hence it is one of the best areas to consider good investments in. Now, if you want your investment to be a smart one you have to understand that the exteriors of your home should be built in such a way that it can provide you higher resale value in the future. And yes, the immediate benefits come along, which includes better protection and lesser maintenance cost or need for repairs due to continuous wear and tear. There are several options available that you can choose for exterior cladding, and it can be quite tempting to select the lesser expensive option. Again, you have the fact that sometimes saving a few extra bucks could cost you more expenses down the road. Today in this blog we are going to compare the two most commonly chosen wall cladding materials for your home’s exterior i.e., Cement Bricks Vs Clay Bricks.

Top 5’s For Cement Bricks Vs Clay Bricks Which Is Better

Here’s a 5-pointer comparison for the Cement Bricks Vs Clay Bricks:

1. Natural Vs. Artificial – Aesthetics

The moment you see your home you should get that proud feeling, isn’t it? And you get that feeling when you successfully create and maintain an excellent curb appeal; something that guarantees you a good return on your investment.

One interesting thing about clay brick masonry homes is that it promises you higher resale value. You may ask why; this is because of brick’s natural durability. Also, the aesthetic value of bricks doesn’t fade, break, crack, age, or grow dated. On the other hand, cement bricks are prone to fading, these have visible seams, can display cracks in the caulking, and has a ‘plasticky’ look which can nowhere match the charm of rustic bricks.

One more thing to note with Cement Bricks Vs Clay bricks is the color options available. Fiber cement siding does come in numerous colors, but clay bricks are available in limitless options with dozens of shades and textures. Clay bricks give us the option to be added even on creative details like around windows and doors, on porches and arches, and much more.

2. Installation Procedure

The brick installation process is tried and tested over generations now, but fiber cement brick installation is known for its complexity. Yes, if not done correctly cement masonry walls may face unsightly and expensive moisture problems. You can do quick research on common cement masonry installation errors to understand more information around it. Our point here is that any faults in the installation can create opportunities for moisture damage resulting in swelling, delamination, crumbling, and loss of paint adhesion.

3. Strongest Vs. Mediocre – Safety And Durability

A brick home provides superior protection from storms and fire. The Brick Industry Association provides this helpful web page with videos and studies that show how well brick performs to keep you, your family, and your investment well protected.

4. Energy Efficiency

Clay brick masonry homes unquestionably lead the way when it comes to energy efficiency. They are known for excellent thermal mass that provides and protects your home’s interior temperature from both cold and heat. Hence, you would save enormously on heating and cooling irrespective of the climate you stay in. Brick wall assemblies involve thermal mass and air space that create its remarkable energy performance.

5. Maintenance

To keep a cement brick masonry, look good, you would need to paint it at regular intervals of 5 – 7 years on an average. Painting your exteriors involves huge expense, along with this you would also need to regularly inspect the caulking used for joints, edges, around windows, and trim; caulking is prone to cracking and wearing down over time. And, if you need to do repairs, it’s hard to keep the entire exterior looking uniform. If you experience damage from accidents, sun fading, or storms, paint touch-ups might end up looking patchy too.

Compare this work to never having to clean, repair, or replace your brick exterior – that’s saving time and money!

Exterior cladding is perhaps the biggest portion of your budget. Brick is generally considered a more expensive option, but when you compare Cement Bricks Vs Clay Bricks along with the benefits the incremental difference could be huge in terms of longevity and returns – Basically brick saves you time and money over the years.

You can look upon Porotherm blocks. These are hollow clay blocks designed to provide better efficiency, durability, ease of use, and a host of other benefits that aid in cost-effective exterior wall construction.

Source – https://gosmartbricks.com

Ecological disturbance caused due to Climate Change is behind the Uttarakhand Tragedy!

The latest Calamity in Uttarakhand has once again turned the spotlight of the impact of Ecological disturbance and the raising concerns on climate change in our society. On February 7, a portion of Nanda Devi glacier broke off, leading to severe floods that washed away villages and damaged power plants. Around 200 people are still missing, and many of them are now feared dead.

States and the Centre need to take a long-term approach on infrastructure project-planning. This will have to start with the mapping of vulnerable areas and choosing the least disruptive, least environmentally-exacting course of action, even if it means dedicating significantly higher resources.

Scientists are yet to conclude what caused the sudden flooding of the Dhauli Ganga river in Uttarakhand’s Chamoli district on Sunday—150 people have been reported missing and the entire Tapovan hydel project has been washed away. Experts cited in various media reports, however, say the blame squarely rests with the failure to draw a balance between fragile ecosystems & topography and development imperatives, compounded by climate-change effects. While ‘glacial lake outburst flooding’ triggered by a recently reported avalanche in the region has also been suggested, some experts are sceptical since no big glacial lakes have been mapped there.

Even so, the possibility that warming could have led to formation of hitherto undetected proglacial lakes would indicate some role played by climate change, which could have been exacerbated by development projects upsetting a topography that is sensitive to what may seem as minor changes.

In July 2020, experts had warned about melting of glaciers in the Nanda Devi region. A study by IIT Kanpur and Dehradun-based Wadia Institute of Himalayan Geology shows nearly 26 square kilometres of the glaciated area of Nanda Devi region was lost in 37 years.

“Also study reveals that the glaciers of the valley lost 26 km² (10%) of the glaciated area between 1980 and 2017. The total glacierized area in 2017 is 217 km², which is 26% of the total area. However, during the same periods (1980-2017) the Equilibrium Line Altitude (ELA) of the glaciers fluctuated between 5200 and 5700 m asl (meters above sea level). The present study suggests that the glaciers in the region have responded to deprived precipitation conditions since 1980,” the study published in July 2020 said.

The shrinking of the world’s ice is now following the worst-case climate change scenario outlined by the Intergovernmental Panel on Climate Change; a study by researchers at the University of Leeds has found that the world has lost a whopping 28 trillion tonnes of ice between 1994 and 2017.

For perspective, that is over 1.2 trillion tonnes of ice lost per year over a little more than two decades, while the ice-loss figure was 800 billion tonnes till then. Various experts, both government and private sector, cited in an article in the Times of India, have voiced concern about climate change effects in the Himalayan ecosystem, saying there are clear signs of temperature increases that add to the risk of glacier-related flooding.

Against this backdrop, the construction of hydel projects, and related development activity, in vulnerable regions needs closer scrutiny and careful weighing against alternative models. In the 2013 floods in the state, scientists had raised questions over the assessment of environmental impact of such projects and their role in exacerbating natural disasters.

The role of unplanned development was also flagged in Kerala floods of 2018 and the Kashmir floods of 2015. Indeed, a Supreme Court appointed committee, as per media reports, had warned against hydel projects over an altitude of 2,000 metres, saying such developments could result in disasters; it had recommended the cancellation of 23 out of 24 projects under way at the time.

Without reassessing the environmental cost of development—more so in hilly regions—and factoring in much-earlier-than-anticipated effects of climate change, India is likely to see more such disasters. States and the Centre need to take a long-term approach on infrastructure project-planning. This will have to start with mapping of vulnerable areas and choosing the least disruptive, least environmentally-exacting course of action, even if it means dedicating significantly higher resources.

As India tries to change course on energy production, it will also need to aggressively push a climate-forward agenda for the rest of the globe. Reducing the carbon output of the national economy may be ‘doing our bit’, but the time for piecemeal action is long over.

Green technology is essential for Future Construction

Builders all over the globe are gravitating towards greener technology methods that can make buildings energy-efficient and sustainable. Homeowners are also showing interest in projects that deploy raw material and construction techniques with a lower carbon footprint and that are not detrimental to the environment. These techniques are being extensively used in modern construction right from the inception phase and in every aspect of the project construction; design, selection of raw material, the systems that run the construction, and the operation.

Renewable power

Pic Credits: https://www.treehugger.com/

Renewable energy sources help in the creation of self-powered buildings. These structures generate their own power to support their energy requirement. In most cases, it is done through solar and wind power. The use of solar power isn’t a new technology. It has been around for long, but now it is widely used by builders as an effective and green alternative to traditional energy sources. 

Using the sun’s energy in active solar power generation involves using the solar panels to generate electricity. Passive solar power generation, on the other hand, uses the sun’s rays to heat the houses using the strategic placement of windows and heat-absorbing surfaces. Wind power is being used by skyscrapers that have wind turbines mounted on the rooftops. The strong air currents at high altitudes propel the turbine blades which results in the generation of power.

Green Insulation

Pic Credits: https://theconstructor.org/building/

Thermal insulation of a building plays a very important role in improving the quality of life of the people residing or working there. Using hollow clay bricks like the Porotherm Thermo bricks is one such greener technology innovations in the field of modern construction for green insulation. These bricks are eco-friendly, made from easily available raw material that is clay, and rank high on the sustainability meter. 

Sustainable raw material

Pic Credits: https://greenbuildingelements.com/

Using bio-degradable raw material is one of the ways of creating a sustainable structure. A lot of waste products and toxin materials are generated during the construction of a building. This waste piles up in landfills for centuries before degrading. We can avoid this by going in for bio-degradable raw materials like bamboo, recycled glass, and organic paints. A relatively newer but effective sustainable material that can be used is eco-concrete. It is practical, durable, strong, and acts as an air purifier with its smog-eating properties. These raw materials do not pose any threat to the environment and improve the productivity and health of people. 

Water-efficient systems

Pic Credits: https://www.homeonline.com/hol/home-tips

Using water-efficient technologies in the construction process is one of the green and sustainable ways of making the structure adhere to green standards and green technology. These technologies include re-use and application of efficient water supply systems and deploy methods like rainwater harvesting, dual plumbing, grey-water re-use, and water conservation fixtures. The use of these water-efficient technologies can lower water wastage by as much as 15%.

Cool roofs and smart glasses

Pic Credit: https://energyhawksusa.com/

Cool roofs reflect more of the sun’s rays than other roofs and prevent the warm or cool air inside from escaping through the top of a building. A cool roof keeps the temperature inside a building low (a cool roof can cut that down by more than 50 degrees) that reduces the strain on the air conditioning systems. This, in turn, reduces the emissions from the heating and cooling units. 

Smart glass is an electrochromic glass that uses a tiny burst of electricity to charge ions on a window layer. It controls the amount of light that the glass will reflect. It is different from the low emittance windows that block partial radiation of the sun as with smart glass, you can choose the amount of light you want to block. This technology is especially beneficial for skyscrapers that use a lot of glass in their façade. The smart glass windows tint automatically during peak sun hours and become transparent in the evenings, night. This glass is expected to reduce HVAC costs by almost 25 %.

A structure becomes great not only by its design but also by its impact on the environment. It is time for the buildings to enter into a symbiotic and healthy relationship with the environment by using green technology-based construction methods. 

Source – gosmartbricks.com

Methods for Natural lighting in our buildings!

Lighting Natural Sustainable Buildings

Natural lighting, also known as daylighting, is a technique that efficiently brings natural light into your home using exterior glazing (windows, skylights, etc.), thereby reducing artificial lighting requirements and saving energy. Natural lighting has been proven to increase health and comfort levels for building occupants.  

Daylight is the source of beneficial vitamin D which our body needs to stay healthy. A building could be designed in such a way that there is maximum natural light inside the house. Some of the fundamental benefits of daylight are:

  • Sunlight during the day helps in healing the body
  • It’s good for strong bones as it contains vitamin D
  • Keeps the environment inside the house clean and pleasant.
  • Builds good immune system of the members of the family
  • Daylight also keeps the happy mode on inside the house for every member of the family

There can be various ways of modeling a  house with a  good amount of natural light and ventilation. Discussed below are the sources that could be used to do so-

1. Design of the house

The house could be designed by the architect in such a way that the shape and size of the windows can be defined clearly. The shading and glazing styles must be in such a way that it suits the building. The windows must be planned in such a way that there is maximum daylight inside the house.

Daylight 1

Image Source: cloudfront.net/

2. Directions of the Windows

The placement of the windows in the house must be in such a way that natural light could comfort the house throughout the day. Windows facing north can give maximum daylight. However, the thermal heat is lost during the winters. South facing well-glazed windows can bring in a good amount of heat and be beneficial during summers and winters.

Daylight windows

Image Source: kechdesignstudio.com/

3. Use of Glazing 

Glazing is the most effective way of getting maximum natural light inside the house. Few small strip windows in the ceiling could be designed which will increase the natural light and give a trendy look to your house. Around 30 percent of the ceiling can be used for glazed windows.

Skylights natural light

Image Source: techomecontractor.com

4. Roofing Techniques

Solar panels could be installed on the roofs to generate electricity to reduce the consumption of electricity in the house. The monthly electricity bills reduce because of such panels and it is a good option to pledge for green living. These panels absorb heat during the sun hours and store it in such a way which can be used during the night. The solar panels can also be used to generate electricity in case of power shutdowns. There could be the use of tubular Skylights. These natural light saves lots of electricity as they are installed on the roof. It absorbs the natural light and then flows in a tube and brings in natural light inside the house.

daylight solar panels natural light

Image Source: logic-sk.com/

5. Use of Sober Colours

While getting your house painted use of sober colours helps in giving a bright look to the house. Light colours could be helpful in keeping the house cool. The trim of the windows can be painted in white which can help in giving an elegant look to the house.

Daylight windows 1natural light

Image Source: remcuaminhdang.vn/

6. Jali wall design for your home

A jali is a commonly used element of Indian architecture. Jali walls have numerous advantages over a solid wall since jali walls can be used in places where there is no need of a solid wall. From providing privacy to cooling the indoors, jalis make for a sensible design element particularly suited for our climatic conditions. And also saves materials and increase the speed of construction.

Image Source: architecturaldigest.in

Natural light is an essential and free resource. This resource is given less importance. However, it has maximum advantages if the house is well planned with lots of sunlight helps to keep the home environment fresh, clean and keeps the members of the family healthy.

source – Go Smart Bricks

The Provisions for Sustainability in Budget 2020-21 !

Sustainability in India’s Budget 2020-21: On 1st February 2020, Union Finance Minister Niramala Sitaraman presented the Union Budget for the year 2020-21 in the Lok Sabha. In her Budget speech, Sitharaman mentioned three critical elements of development: aspirational India, development and a caring society. All these are critical part of sustainable development goals.

Ministry of New & Renewable Energy (MNRE)

  • Over the past three years, the allowance for the Ministry of New and Renewable Energy had stayed below ₹5,000 crores. This year, the allocation has gone up to ₹5,753 crores to the ministry.
  • The government would increase the capacity of renewables to 450 GW by 2030. As of December 2019, 86 GW of renewable energy—including 34 GW of solar and 38 GW of wind energy has been installed.

Ministry of Environment, Forest & Climate Change (MOEFCC)

  • Budget 2020-21 allocated Rs 3100 crore for MOEFCC, out of which Rs 460 crore has been allotted to control pollution, which is the same as the money it received in the last budget.
  • Rs 4,400 crore has been allocated to give incentives to large cities (more than one million population) to formulate plans for ensuring ‘cleaner air’. MOEFCC will notify the parameters for such incentives.

Emissions:

  • Old thermal power plants that do not meet prescribed emission norms will be asked to close down and their land will be used for unspecified alternative purposes.
  • The Indian Railways targets to electrify 27,000 km of tracks. The government plans to power railways through large-scale solar farms on land near tracks. The measures are in line with the Indian railways’ aim to be a net-zero emitter before 2030.

Water:

  • India’s Budget 2020-21 recognised water stress as a serious concern and proposed comprehensive measures for 100 water stressed districts in the country.

Agriculture & Allied Sectors:

  • India’s Budget 2020-21 also mentions the need to use organic fertilizers and change the existing incentive regime that encourages farmers to use chemical fertilisers.
  • Budget 2020 proposes to put in place a framework for sustainable management and development of the ‘blue’ economy. India is the second largest exporter of fish and development of fisheries has to be done in a sustainable manner.

Climate Change

  • Reiterating India’s commitment to climate action, Sitharaman said a lot of work under the 2015 Paris Agreement would kick in from January 1, 2021, on the “best effort basis”. India would execute all its climate action targets under the 2015 Paris Agreement under the normal budgetary provisions,” she added, in line with India’s stand of urging developed countries to fulfill their financial commitments under global climate action.
  • India has consistently maintained that finance remains a major roadblock and that it has been fulfilling its targets by relying on domestic budgetary resources. “The two global initiatives of Coalition for Disaster Resilient Infrastructure (CDRI) and International Solar Alliance (ISA) would help India to enhance climate action, disaster resilience and address various sustainable goals,” Sitharaman said.

Ways to keep our Building & Environment cool without an AC !

Unquestionably, bringing down indoor temperatures without an air conditioner can be one hard-hitting task. But, think of our older generations; they used simple methods to stay cool during the summers which worked wonders. And yes, we need to acknowledge the fact that most of those methods were non-polluting and cost-effective. Building on this, today we take you through a few of the most common eco-friendly ways of keeping yourself cool during the summers – Note without wasting electricity or harming the environment.

1. Green Shade

A hint of greenery always brightens our living spaces; sadly, most of us are living in concrete jungles where natural shade is totally absent. We have allowed a lot of direct sunlight to beat our windows and roofs during the hottest times of the day – resulting in exceptionally high indoor temperatures.

Trees if planted on the southern and western sides of your house provide a great deal of natural green shade. Also, these are great for the environment as it can offset some of the carbon emissions produced from your AC’s. Irrespective of the fact that most of us cannot afford to have a spacious landscaped garden around our homes; we can still have a few pots in our balconies and kitchen gardens.

2. Use The Window Advantage

Like we say – Let the air in….

We must use our Windows to the fullest as these are key in keeping your homes cool. Open your Windows to create cross ventilation through the house. Try opening your windows more during the morning time as the air is fresher.

Another important thing, add curtains as these play a role in regulating the temperature. Insulating curtains can help your home in both summer and winter; this is because these blocks hot air out in the summer and cool air out in the winters.

3. Whitewash Your Roof

This might sound strange, but whitewashing the roof with some light colors actually works in bringing down the indoor temperature by 5-10 degrees. Also, not just the indoors of the homes, if all the surfaces in a city are painted white, they can considerably bring the temperature down for the entire surrounding. This interesting technique is an ancient one, which is still used in parched regions like Rajasthan.

All you would need to do is apply a single coat of good quality exterior paint which is water-proof on your building roof every two-three years depending upon the amount of rain received in the region you stay.

4. Rooftop Garden

Did you know? Rooftop gardens can be installed on large and small commercial/residential buildings and even on vehicles having a roof. These interesting gardens help in creating a refreshing pollution-free environment and act as a mobile indoor air purifier – especially in congested cities where we stay. The thick layer of soil helps in cooling down the air below the roof automatically.

These interesting garden set-ups can bring back the lost bees, birds, butterflies, etc. which are no longer seen in the polluted cities we live in.

5. Khus Khus Carpet

Source

In small and medium-sized towns, Khus Khus carpets are one ultimate equipment that is used to beat the summer heat. These carpets made of khus khus are soaked in water and hanged from the ceiling, spreading across the terraces. The most interesting thing about them is that they do not allow the heat in the air to pass through, instead, it evaporates providing cool breeze for people living behind the layer.

6. Proper Insulation

This is more relevant for those who live in old buildings/apartments; Proper insulation can do wonders in keeping the cool air inside. And the most important aspect of proper insulation is ensuring your home is airtight i.e. air isn’t managing to escape through the doors or windows.

If you are planning to build a new home, identifying basic insulating materials are important. Here is a list of basic insulating materials; wool insulation materials, slag slabs, natural fibre insulation materials, porotherm bricks, gypsum board, vermiculite and perlite insulation materials, cementitious foam insulation materials, gasket cork sheet, insulation facings etc.

Stay Cool + Environmentally Friendly

With these tips in place, you can stay cool and harm the environment in the least possible way. Once you start implementing these tricks at your home, you will stay cool, save loads on your electricity bill and be gratified on the fact that – You are helping the environment.

source – Gosmartbricks

Sustainable Cooling Solution’s

EXCEL CoolCoat® is a water-based, high solids, PUD hybrid, Summer Cool coating for Roof. EXCEL CoolCoat® contains both reflection and nano insulation pigments for best in class heat protection. Along with it, the adhesion enhancer & Nano UV protectors prevent the coating from UV degradation delivering excellent weatherability and longer service life. EXCEL CoolCoat® is powered with micro-fibres for excellent water proofing & crack resistance.

EXCEL CoolTile is a heat reflective & insulation tile which will reduce heating effect of the buildings, save significant energy and adds on maintenance savings. The product is environmental friendly, commercially resourceful and suitable for various applications such as industrial projects, commercial buildings, houses, cold storages & any new/old terrace buildings

EXCEL StayCool is an advanced Nano-technology based transparent glass coating which insulates the glass, and it can effectively filter majority of the UV & IR rays emitted by the sun while still allowing most of the visible light to penetrate through the glass. It acts as a thermal barrier all-round the year, thus reducing upto 30% of air-conditioning and heating cost.

Join Our Newsletter Today On The Sustainable Tech Insights

Stay updated with all latest updates,upcoming products & tech on Econaur!
Subscribe
SUBSCRIBE NOW
close-link

Join The Social Community Now!

Join the Social community Interreact with professionals related to building industry share projects get updates, tech insights and many more !
JOIN NOW
.
close-link
X
X