2023

The Role of Desiccant Wheels in Dehumidification: Technology and Applications

In our fast-paced modern lives, we spend much time indoors, whether at home, in offices, schools, or other indoor spaces. However, many people don’t realize that the air we breathe indoors can profoundly impact our health and well-being. Poor indoor air quality (IAQ) can lead to various health issues, from respiratory problems to allergies, headaches, and fatigue.

Long-term exposure to indoor pollutants can even result in more severe health concerns like cardiovascular diseases and respiratory disorders. Poor IAQ can also affect productivity and performance in commercial settings, leading to decreased focus, increased sick leaves, and reduced overall efficiency.

Understanding Air Purification Systems

Air purification systems significantly combat indoor air pollution and create healthier indoor environments. These systems use various mechanisms to remove airborne pollutants from the indoor air, such as filtration, ionization, UV-C germicidal irradiation, and photocatalytic oxidation (PCO). Each technology offers unique benefits, making air purifiers an effective tool in improving IAQ.

Types of Air Purification Technologies

HEPA (High-Efficiency Particulate Air) Filters

HEPA filters effectively capture small particles, including dust, pollen, pet dander, and mould spores. These filters can significantly improve air quality by removing various allergens and irritants.

Activated Carbon Filters

Activated carbon filters are excellent at removing odours, adverse chemicals, and volatile organic compounds (VOCs) from the indoor air. They absorb these pollutants, creating a fresher and cleaner indoor environment.

Electrostatic Precipitators

Electrostatic precipitators use an electric charge to trap particles in the air. They are instrumental in capturing larger particles like dust and smoke, making them an efficient option for specific indoor spaces.

UV-C Light Purifiers UV-C light purifiers use ultraviolet light to neutralize viruses and bacteria in the air, helping to reduce the risk of infections and improve overall hygiene.

Photocatalytic Oxidation (PCO) Systems

PCO systems combine UV light with a catalyst to break down pollutants, such as VOCs and other harmful gases, into harmless substances like carbon dioxide and water vapour.

Benefits of Advanced Air Purification Systems

Removal of Particulates and Allergens Advanced air purifiers equipped with HEPA filters can efficiently capture and remove airborne particles, including dust, pollen, pet dander, and mould spores, thus significantly improving air quality and reducing the risk of respiratory issues caused by allergens.

Eliminating Harmful Chemicals and VOCs

Air purification systems with activated carbon filters can effectively absorb and eliminate harmful chemicals, odours, and VOCs, creating a healthier indoor environment.

Bacteria and Virus Inactivation

UV-C light purifiers and PCO systems can help inactivate bacteria and viruses, reducing the risk of infections and improving overall hygiene in indoor spaces.

Odour and Smoke Removal

Air cleaners, equipped with activated carbon filters, are particularly effective in removing stubborn odours and smoke, creating a pleasant and odour-free indoor environment.

Improved Respiratory Health

By reducing airborne allergens and irritants, advanced air purifiers can help alleviate respiratory issues, such as asthma and allergies, improving respiratory health and overall well-being.

Enhanced Indoor Air Quality in Commercial Spaces

Air purification systems in commercial settings can significantly improve IAQ, providing a healthier and more comfortable environment for employees and customers. Furthermore, adding to enhanced productivity and reduced absenteeism due to health-related issues.

Considerations for Choosing the Right Air Purification System

Before selecting an air purification system, it’s essential to assess the specific IAQ needs of the indoor space. Factors such as pollutant types and levels, room size and coverage area, filter replacement and maintenance, noise levels, and energy efficiency should all be considered. Choosing an energy-efficient, quiet air purifier ensures minimal disruption and reduced energy consumption.

Moreover, look for air purifiers with relevant certifications and industry standards for performance and safety. Reputable brands that offer comprehensive customer support and warranty coverage are also essential considerations when investing in an advanced air purification system.

Industrial Applications and Clean Room Environments

Precision and safety are paramount when discussing the use of advanced air purification systems in industrial applications and clean room environments.

Advanced air purification systems are vital in improving IAQ and creating safer and healthier indoor environments. By removing airborne pollutants, allergens, harmful chemicals, and bacteria, these systems contribute to better respiratory health, reduced allergies, and enhanced well-being for occupants.

In commercial settings, improved IAQ can lead to increased productivity and reduced absenteeism, while in industrial environments, clean air is essential for precision and safety.

When choosing an air purification system, assessing the specific IAQ needs, room size, and features is crucial to ensure the best possible performance and efficiency. Reputable brands with certifications and industry standards are reliable for high-quality air purification solutions.

By investing in advanced air purification technologies, individuals and businesses can take proactive steps towards creating a healthier and more comfortable indoor environment, ensuring the well-being and productivity of occupants.

At DRI Rotors, we aim to provide the best Indoor Air Quality for business purpose. Reach us now to get a consultation about your business and maintaining high-level air quality at your premises for higher productivity.

Evaporative Cooling: Reducing carbon footprint and improving indoor air quality

Debashish Roy Choudhury, AVP of the ARCTIC Division at DRI, highlights how evaporative cooling technology innovatively conditions the air while eliminating the need for harmful refrigerants. This environmentally friendly approach to cooling significantly reduces the carbon footprint.

With the onset of summer, the acute rising temperature becomes a matter of enormous concern. People generally resort to air conditioning for relief to beat the scorching heat. But in return, it poses severe irreparable environmental damage while overshooting the electricity bill. The problem becomes even more amplified in the commercial and industrial spaces. Amidst such conditions, green cooling provides perfect cooling solutions for giving comfort from the heat in the most economical way possible.

Based on the sustainable cooling mechanism, it fights against the issue of global warming and climate change in the most energy-efficient way by harnessing the benefits of ancient traditional methods. India projecting a surge in power consumption by 9% in February showcases the importance of adopting the green cooling solution. According to the World Bank report, the low-carbon cooling method can translate to a $1.5 trillion investment opportunity in the country in the next two decades.

Here, it is important to understand that the heat issue gets further aggravated in the commercial and industrial space. As a result, it immensely jeopardises the health and productivity of the occupants. For instance, places such as schools and colleges, offices, restaurants, factories, warehouses, etc., are large complex spaces requiring more ventilation. The spaces accommodate many people at a given time, making it difficult and tricky to cool down the space naturally. Deploying air conditioning in such large spaces for cooling purposes can impose huge installation costs and continually levy heavy operational charges, making it a costly option. Moreover, considering the large area, much energy is wasted in cooling down the extra space.

Hence, looking at the cooling requirement of commercial and industrial space, Industrial Evaporative Cooling works best and most economical for large spaces. Providing thermal comfort, it efficiently protects the integrity of the space. Compared to other alternatives, evaporative cooling requires minimal installation capital cost, charging approximately 60-70 percent of the cost of setting up an air conditioning system. Additionally, using natural resources for cooling substantially minimises the running cost of the machines. Packed with high-adsorbent materials, evaporative cooling comes with elevated saturation efficiency that contributes to the overall cost-effectiveness of the machines. It can substantially reduce energy consumption by utilising 80 percent less electricity as compared to other alternatives available in the market. The range of ARCTIC Coolers is highly efficient in providing cooling solutions for large spaces, especially in warm and tropical Indian weather conditions.

The innovative cooling system takes an environment-friendly route to provide relief even in the peak summer months. It can achieve a temperature of 27°C, bringing it down from 45°C against harsh outdoor conditions in most parts of India. The technology works on the principles of evaporating water into the air, extracting 100 percent natural fresh air from the surrounding, and bringing down the temperature of large, complex spaces. In the process, it maintains continuity in the supply of fresh oxygen to the room. This continuous supply and circulation of fresh air is a major factor in reducing the stale indoor air within the space.

Considering the cooling mechanism involved, it eliminates the stagnant indoor air responsible for the proliferation of viruses and bacteria. Likewise, it removes fumes, odour, and carbon dioxide, including other airborne impurities and built-in dust, from the vast space. Cumulatively, apart from cooling, the evaporative cooling solution also improves indoor air quality.

Based on green air conditioning, the technology very innovatively conditions the air with the help of evaporative cooling. It prevents the dependency on any harmful refrigerants for cooling. On the whole, the process of cooling reduces the carbon footprint effectively. As a result, it perfectly complies with the India Cooling Action Plan for promoting affordable and energy-efficient cooling. Aimed at reducing the refrigeration demand of the country, the plan advocates for passive cooling in the building. At the same time, the cooling mechanism serves the purpose of reaching the net-zero targets set to be achieved by the country.

In conclusion, Industrial Evaporative Cooling is the ideal solution for various heat problems, making it the most sought-after cooling option for summer. Being economical and energy-efficient, sustainable cooling is the most suitable method for relieving unbearable heat.

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Pahwa Group Inaugurates the DRI Sustainable Agriculture Resource Center on World Environment Day

DRI, the flagship company of Pahwa Group, the fastest growing adsorption technology group in the world, inaugurates the DRI Sustainable Agriculture Resource Center at Dadhikar village in Alwar, Rajasthan, in partnership with the Sapna NGO. With an aim to provide benefits to the farmers, the center was inaugurated on the occasion of the World Environment Day (5th June, 2023) by Mrs. Anandita Pahwa, Head-CSR Initiatives, Pahwa Group, in the presence of Mr. Jagdish Prasad Sharma, Assistant Agriculture Officer, Alwar; Mr. Sudhir Pratap Singh, General Secretary and Prof. Ranvir Singh, Secretary, Sapna NGO. Many of the farmers from the Dadhikar village were also present for the inauguration.

The objective of this center is to promote sustainable and environment-friendly agricultural practices and improve soil health and fertility through natural methods. Benefiting more than 150 farmers in the area, this project will lead to increased access to organic, healthy and chemical-free food for the local community, along with providing training and support to farmers & villagers transitioning to organic farming methods. Initially, four types of organic khad will be made and distributed to the villagers from the new center, namely Neemastra, Jivamrit, Vermi Compost and Rapid Compost.

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This center is aimed at generating awareness about organic farming and increasing the productivity of the crop. The long-term impact of this project will be to eliminate the use of synthetic inputs, such as synthetic fertilizers and pesticides, genetically modified seeds and breeds, preservatives, additives and irradiation. These will be replaced by site-specific management practices that maintain and increase long-term soil fertility and prevent pests and diseases.

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Earlier this year, the company also inaugurated a Check Dam in the same area of Dadhikar village, Alwar to balance the water scarcity by recharging the water table. Commenting on the past initiatives and the new center, Anandita Pahwa, Head – CSR Activities, Pahwa Group said, “We are proud to say that the underground water levels have gone up since the construction of the check dams in the area, allowing the farmers some respite in terms of the availability of water. It has also encouraged them to get back to farming with vigor and we want to further work towards this. Moreover, we are sure that the new DRI Sustainable Agriculture Resource Center will act as a catalyst of change and arm the farmers with resources to move away from synthetic fertilizers and pesticides, towards using organic farming products“

The Center will also be used as a Farmer Training and Capacity Building center, where the company plans to conduct workshops and training sessions on organic farming techniques. It will also provide education on soil management, composting, natural pest control, and crop rotation, and demonstrate different organic techniques suitable for the local conditions.

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In addition to the inauguration, DRI and Bry-Air (another flagship company under the Pahwa Group) also organized volunteer activities with the children studying at the Bry-Air and DRI Pathshalas in Dharam Colony and Carterpuri village of Gurugram on the same day. The activities for the students included a drawing competition around the theme of ‘beating plastic pollution’, decorating flowerpots and planting seeds in them. The aim of the event was to create awareness among the students and sensitize them as future generations towards the growing strain on Earth’s natural ecosystem and encourage them to take steps to protect the environment.

For years, Pahwa Group has been an active participant in the endeavor to protect the environment and preserve the earth. It has undertaken various initiatives like the construction of check dams for rainwater harvesting, plantation drives, and afforestation to increase green cover and improve the air quality in a step towards the restoration of the ecosystem. As a result of the regular afforestation drives in Dadhikar village, Alwar, Rajasthan, a forest of more than 750 medicinal and fruit-bearing trees has been developed. This will help in the re-greening of the area which will be able to provide fruits for the locality.

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Why HVAC Experts Recommend Energy-Efficient Air Handling Units (AHUs) For Sustainable and Effective Management of Air Quality in Large Spaces

GUIDE TO CHOOSING ENERGY-EFFICIENT AIR HANDLING UNITS (AHUS) FOR SUSTAINABLE AND EFFECTIVE MANAGEMENT OF AIR QUALITY IN LARGE COMMERCIAL AREAS

According to one recent estimate, the world’s population may reach 8.5 billion in 2030 and 9.7 billion by

Reaching net zero goals will be difficult given this rate of population expansion. Many nations are going through an energy-intensive period of commercialization and urbanization, specifically driving growing demand for energy services. When we add the issues of combating climate change, energy saving becomes a critical goal for all business enterprises.

Energy is squandered in business enterprises in several ways. For instance, inefficient appliances waste energy in the commercial sector, and extra heat produced during peak occupation hours could be put to better use. Because there are few easy and reasonably inexpensive ways to track and manage the energy used in buildings and businesses, enormous amounts of energy are lost every day.

A meticulous inspection of any commercial building is required to design solutions to properly manage several parameters like air quality and humidity to maintain appropriate temperature and air quality in large open spaces. Depending on specific business needs, HVAC experts offer several solutions to improve occupant safety, comfort, productivity, structural preservation, and increased energy efficiency.

VENTILATION AND COOLING CHALLENGES IN LARGE COMMERCIAL COMPLEXES

Large entrances, insufficient insulation, air leakage, and inefficient heat distribution are all factors in energy loss in large buildings. Excessive outside air penetration makes buildings more susceptible to high energy expenses. Even in enclosed large areas, creating the proper air distribution (also known as thermal stratification) is challenging. Warm air rises, whereas cold air tends to settle, creating stratified layers prone to stagnation. In addition, cold downdrafts frequently arise along vertical surfaces due to temperature differences. These may result in unwelcome cold areas in the structure. By bringing in a lot of cold air at once, conventional HVAC cooling systems can make the issue worse.

Another factor is the variation in fresh air needs as per occupancy levels in different parts of a large facility. When the building is completely occupied, additional air may be required to meet the structure’s needs for fresh air. Hence, it is crucial to design the HVAC system when the requirement for air intake fluctuates so that these variations may be rapidly and readily addressed.

Finally, in large buildings, poor airflow, air stratification, and moisture accumulation can all work together to foster the growth of hazardous mold. In addition, stale air can be a thriving place for bacteria, viruses, and other airborne toxins to thrive.

Condensation of moisture is also common in large structures, especially those that are not insulated. Like all moisture concerns, this one could result in fungus growth troubles and structural damage to the building. Finally, in large buildings, poor airflow, air stratification, and moisture accumulation can all work together to foster the growth of hazardous mold. In addition, stale air can be a thriving place for bacteria, viruses, and other airborne toxins to thrive.

Troubleshooting ventilation and cooling issues can be challenging, particularly in buildings with several integrated HVAC components. It’s crucial to identify the root cause of any issues your building has if you’re encountering these or other similar issues. Energy-smart HVAC solution experts can help resolve most of these issues by using innovative solutions, significantly improving the affected buildings’ comfort, safety, productivity, and energy savings.

AIR HANDLERS CAN EFFICIENTLY MANAGE COMPLEX VENTILATION AND AIR PURIFICATION NEEDS OF VAST AREAS

One of the most efficient ways to manage the proper ventilation requirements for purifying and rejuvenating the interior air in a building is using an air handling unit, often known as an AHU. An essential part of any sizable air-cooling system, AHU allows simultaneously cooling vast areas while also assisting in regulating indoor air quality (IAQ). The system is fixed to a building’s ground floor, basement, or roof during installation.

By regulating temperature and airflow across different parts of a commercial complex, an AHU installation ensures that the occupants receive fresh air with comfortable cooling. AHUs are used frequently in conjunction with other heating and cooling systems. These units are often large and attached to ducts that distribute regulated air throughout the structure and expel exhausted air.

HOW AIR HANDLING UNIT (AHU) WORKS

An AHU unit is made up of components mounted in sizable, easily accessible box-shaped units called modules. These modules contain the necessary ventilation components for cleaning, cooling, or replenishing the indoor air in a location. Air handling devices pull outside air, clean it, and distribute it throughout the rooms. They can also pull indoor air that has been “recycled.” Several filters trap particles, viruses, bacteria, odors, and other air contaminants.

The AHU lowers the energy needed for air cooling since the exchanger mixes internal and outdoor air, lowering the temperature contrast when the air enters the coil and leading to lower energy consumption. The fans can operate as per the required flow rate thanks to the equipment’s variable regulation, which reduces consumption. Coils, heat exchangers, and other components are all optimized to provide the lowest pressure drop to achieve the highest efficiency, resulting in extremely low maintenance and operating costs.

DESICCANT ROTORS INTERNATIONAL (DRI): YOUR PARTNER IN TRANSITIONING TO “NET ZERO” WITH RESEARCH-BACKED SOLUTIONS

DRI’s mission is to develop sustainable green building solutions to assist companies in their transition to net zero. With a focus on innovation and new product development, DRI has taken the lead in developing numerous components and solutions using its expertise in desiccants, corrugation technology, and air system design.

DRI offers a wider range of services and products on a global scale – including, energy recovery, indoor air quality, fresh air treatment, evaporative cooling, green buildings, dehumidification, and pollution control. To offer maximum flexibility and the optimal solution for a company, the DRI AHU product line consists of 15 types with air volumes ranging from 1700 to 60000 CMH and internal static pressures as high as 1000pa.

DRI application experts are renowned for their capacity to design and construct customized equipment and installations for various commercial sectors. With five cutting-edge manufacturing facilities, DRI has received ISO 9001 and ISO 14001 certifications. With a focus on quality and on-time delivery, the plants are vertically integrated and house all essential components and production processes.