ABSTRACT
In principle, during a continuous cooling application, heat absorbed at a low temperature should be released at a higher temperature environment. The main types of condensers based on cooling medium include: water-cooled condensers, air-cooled condensers, and evaporative condensers. The evaporator is the heat exchanger at which the cooling effect is produced by absorbing heat from a heat source in order to evaporate the working medium of the refrigeration cycle. In the liquid cooling evaporators, as in the case of water condensers, all kinds of heat exchangers can be used, with plate-heat exchangers, tube-in-tube, and shell-and-tube heat exchangers being the most widely applied. Apart from the condenser and the expansion device, absorption chillers, in their simplest configuration, implement two more heat exchangers, the generator, and the absorber. In terms of power production, the two most widely applied thermodynamic cycles are the Rankine cycle and the gas Brayton cycle.
