ELECTRICAL ENERGY EFFICIENCY AND ENERGY CRITERIA IN HOME AXIAL FANS IN IRAN

Energy consumption in Iran is 3.5 times of the world average and electrical energy consumption in Iran is 5 times of the world average. So it is necessary to have the standard of energy consumption in particular of home energy and consuming tools. 42% of the total energy consumption in the world is related to the home sector. Fans with 9% of home consuming energy, after the refrigerators and air conditioning systems are the third energy consumers in this sector. Researchers conducted in other countries show that there has been a considerable reduction of energy consumption of fans when standard methods of fans tests have been applied. For this purpose, the standard and criteria of energy consumption in fans have been developed and communicated in accordance with the legal duties. The objective of developing these standards is to determine the method of energy consumption measuring and energy label of home centrifugal fans. This standard is applied on centrifugal fans from air giving out of 170 to 3500 cubic meter per hour. The index of energy consumption in various countries of the world has been defined based on CFM/W, M3/min/Watt or M3/S/Watt.