In cosmetics, the most common use of acetone is in nail polish remover. Acetone is a colorless, flammable liquid that evaporates easily. It is an organic compound because carbon atoms are present in acetone's chemical formula, which is (CH3)2O.
Swenson thermal vapor recompression (TVR) evaporators use a thermocompressor to reduce the steam required per pound of evaporation. To reduce energy consumption, water vapor from an evaporator is entrained and compressed with high pressure steam in a thermocompressor so it can be condensed in the evaporator heat exchanger. The resultant pressure is intermediate to that of the motive steam and the water vapor.
VRF (variable refrigerant flow) or VRV (variable refrigerant volume) comfort systems consist of multiple evaporators with variable capacity, connected to one central variable-capacity inverter-driven heat pump. These systems feature a heat-recovery mode that allows the transfer of energy from zone to zone with minimal compressor use.