Energy Efficiency Services Limited
Most households in India are cooled by fans, and less than 10% of households have air conditioning. The average rating of the fans installed and sold in the market is between 75-80W, whereas energy efficient fans provide the same level of comfort at about 45-50W. Considering that almost 30 million fans are sold every year, the potential to reduce demand is significant. Replacing the country's 35 crore inefficient ceiling fans in with BEE 5-Star-rated ceiling fans could save 47 billion KWh and reduce load by over 12,250 MW.
Electrostatic fluid accelerator
Potential advantages of EFA cooling devices include improvement on all these issues; EFA fans produce no vibration and have no parts to wear out. Their power consumption and airflow are controllable electronically, allowing them to be run in an optimal fashion to maximize cooling and efficiency. In particular, EFA fans can produce flow which is fairly laminar, and the velocity profile of the flow can be controlled to a much greater extent than conventional fans.
Control of the airflow may have the most important impact on cooling effectiveness. Electrostatically accelerated flows have been shown experimentally to alter the boundary layer along a fixed surface so that the heat transfer rate is increased, in some cases by more than twofold.