Air compressor is a big source of waste heat. Nearly 85% of the input energy is lost in heat. Large amount of this heat can be recovered using a system of protected and controlled heat exchangers. Heat is extracted from compressors’ internal lubricant, discharge air, cooling water, enabling the consumption of waste heat from the compressors. This type of heat can be used for technological processes (component cleaning, washing), central heating, powering heaters, feed water to steam boiler, etc. Sometimes heat recovery is considered to be the transport of warm ventilation air from behind the air oil cooler and compressed air of the compressor – in order to heat rooms close to the compressors.
