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What is CFM (volume) ?

CFM can also be modified into other widely used units such as CMH (Cubic metre / Hour) and IPS (Inch/Sec). It is commonly used to exhibit the capacity of the blowers and the air demand of the conditioned areas. In a closed system, the CFM is proportional to the cube of power and square of static pressure.

The attested static of the system may differ conditional on the choking of filters, positioning of dampers, diffuser positioning etc, which results in the real static pressure of the system, which is relatively less than the maximal design total pressure. The overall static pressure consists of a squared law relation with power consumption of the Air Handling Unit.
Temperature forms an essential part of cooling applications and is relatively achieved in the area as a result of many factors such as ambient temperatures, fresh air availability, temperature of coolant, man movement in the area and the direction of the area.

Heat load refers to the amount of heat energy that would be required to be excised from the system to maintain a comfortable working temperature. The Heat Load is classified into two parts –
a) Sensible
b) Latent
The factors regulating the latent heat of the system are no. of people, ambient temperature, equipment and appliances, including motor heat load as well. The heat load added on the system due to the motor inefficiencies is also considered in the designing of the system vis-a-vis CFM and Cooling capacity. With the use of AAD TECH System there can be a considerable amount of reduction of heat load.

Cooling of air in an AHU is a function of heat transfer to the air passing through the cooling coil. Usually this is considered with a combination of 2 things –
a) Chill water/coolant temperature which is incoming in the coil is used to transfer the coolness to the air passing through the coil.
b) The holding time of the air through the cooling coil i.e. the speed of the air passing through the coil should be optimum in order to maintain efficient heat transfer.
Once the above 2 combinations are prepped, the AHU executes its work to cool down the air at the best efficiency. The role of fan in the cooling of air –
a) Scenario 1
In case of retrofit done if we regulate the FPM (Feet per minute / velocity) of the air through the cooling coil the hold time of air remains the same and hence the coil efficiency and heat transfer is not bothered. In other words system performance is unaffected if the before and after CFM is kept the same.
b) Scenario 2
In case of a new AHU we have to design optimal velocity of air through the cooling coil to keep efficient heat transfer. Again the job of the fan and motor is to blow the amount of air which is set as design parameter.
The added benefit of AAD TECH EC drives in both the scenarios is that because of the very high efficiency of the motors the heat imparted (motor heat load) to the system is nil as compared to the conventional AC motors, hence the extra CFM required for the latent load can also be reduced.

AAD Tech India serves a diverse range of industries, including Pharmaceuticals, Automobile Manufacturing, FMCG, IT, Packaging, Hospitality, and Healthcare, providing solutions that improve energy efficiency and reduce carbon footprints.
Our solutions, especially EC Fan retrofits and Smart Air Handling Units (AHUs), offer substantial energy savings. Many clients experience reductions in energy consumption exceeding 50%.
Our products and solutions are designed to reduce carbon emissions, energy usage, and water consumption, aligning with corporate net-zero and sustainability targets. By utilizing our retrofits, cooling towers, and IoT-based controls, clients can make significant strides toward achieving environmental goals.
Energy-efficient upgrades are modifications or retrofits that improve the energy performance of existing systems, such as HVAC, lighting, and machinery. By incorporating technologies like EC Fans, Smart AHUs, and energy-efficient cooling towers, you can significantly reduce energy consumption, operational costs, and your carbon footprint.
Retrofitting existing Air Handling Units (AHUs) with EC Fans provides significant energy savings (up to 65%), reduces maintenance needs, and improves airflow efficiency. It’s a cost-effective way to upgrade without needing to replace entire systems, minimizing downtime and waste.
Our energy-efficient products, like EC Fans and Smart AHUs, consume less electricity, which means fewer greenhouse gas emissions. Additionally, by optimizing airflow, cooling, and air quality in industrial environments, our solutions help companies achieve both cost and environmental benefits.
We provide tailored solutions that address energy reduction, efficient resource management, and ongoing optimization, helping clients align with their sustainability goals. Our work with clients like Mahindra Group showcases how EC Fan retrofits, cooling towers, and IoT-enabled monitoring can contribute to achieving net-zero goals.
IoT enables data-driven insights into energy consumption, system health, and operational efficiency. By continuously monitoring these metrics, companies can adjust settings in real-time, preventing waste and maximizing energy savings, which directly contributes to sustainability efforts.

Our key products for energy efficiency include:
• EC Fans for retrofitting AHUs, which deliver up to 65% energy savings.
• FRP-based cooling towers that lower energy and water consumption.
• Smart AHUs equipped with advanced control systems and IoT capabilities for optimized performance.

Yes, we specialize in tailoring our energy-saving solutions to meet the unique requirements of each client, whether through custom retrofitting, advanced controls, or our range of Smart AHUs.
An Electronically Commutated (EC) Fan is a highly efficient fan that uses a brushless DC motor to provide precise control over fan speed and performance, resulting in lower energy consumption and reduced maintenance needs.
Yes, our EC Fan retrofit service allows you to upgrade existing AHUs with EC technology, enhancing performance and achieving energy savings of up to 65%.
Our FRP (Fiber Reinforced Plastic) cooling towers are corrosion-resistant, energy-efficient, and designed for durability, making them ideal for reducing operating costs and lowering environmental impact.
We provide a range of cleanroom products, including Laminar Flow units, Pass Boxes, and other solutions to maintain sterile, controlled environments essential in industries like pharmaceuticals and healthcare.
Our solutions integrate IoT and AI technology to offer real-time monitoring, predictive maintenance, and remote control capabilities. This allows for enhanced efficiency and prevents unexpected downtime by providing data-driven insights.
Optimate is a comprehensive software for factory automation that streamlines processes such as purchasing, inventory management, stock analysis, and CRM. It optimizes workflow, reduces errors, and enhances productivity.
Yes, we provide ongoing maintenance services for our solutions, including IoT-enabled HVAC maintenance, preventive checks, and an AI-based fault detection system with 24/7 support.
Absolutely. We collaborate closely with clients, including sustainability-driven businesses like the Mahindra Group, to align our solutions with specific sustainability targets, helping them achieve measurable energy and resource savings.
Yes, we work with partners in water treatment, air quality management, and other fields to provide holistic solutions that address energy and resource efficiency from multiple angles.
Yes, we offer training sessions to ensure your team is comfortable with operating and maintaining our solutions, empowering them with knowledge for optimal usage.

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