ABSTRACT
Typically, an adsorption system has some features in common with the conventional vapor-compression system but differs in a few aspects. The main difference is that the mechanical compressor in vapor-compression systems is replaced by a thermally driven absorption/adsorption compressor, also called a chemical or thermal compressor. Hence, the ability to be driven by low grade thermal heat energy makes an absorption/adsorption system an attractive option for electric energy savers. Another difference between the systems is that a heat source must be introduced in absorption/adsorption systems to retrieve the refrigerant vapor from the adsorbent before the refrigerant enters the condenser. This process thus eliminates necessary shaft work of the engine to drive a mechanical compressor as in the case of a conventional compression cycle conversion system, which increases the engine load and fuel consumption.
An absorption thermal energy convertor is a heat engine that uses low grade thermal energy to produce desired cooling via a process of absorption cooling in a chemical absorber, as compared to the common refrigeration technique, which uses an electrical compressor to accomplish the same cooling effect.
