The energy efficiency of absorption can be improved by recovering some of the heat normally rejected to the cooling tower circuit. A two-stage or two-effect…
Category: Refrigeration Cycles and Systems
As stated earlier, in ARS, an absorber, generator, pump and recuperative heat exchanger replace the compressor. Like mechanical refrigeration, as shown in Figure 3.49, the…
These ARSs utilize a combination of water (as the refrigerant) and lithium bromide (as the absorbent), as the working fluid. These systems are also called…
The two-fluid absorption refrigeration system succeeded in replacing a compressor which requires a large amount of shaft work by a liquid pump with a negligible…
In practical ARSs the utilization of one or two heat exchangers is very common. Figure 3.47 represents a practical absorption refrigeration system using a working…
It is considered that the ARS is similar to the vapor-compression refrigeration cycle (using the evaporator, condenser, and throttling valve as in a basic vapor-compression…
Although the principle of the absorption refrigeration cycle has been known since the early 1800s, the first one was invented by French engineer Ferdinand P.E.…
The twin refrigeration system is a new refrigeration technology that solves the problems of conventional vapor compression refrigerators. A no-frost cooling system is the latest…
Cascade refrigeration cycles are commonly used in the liquefaction of natural gas, which consists basically of hydrocarbons of the paraffin series, of which methane has…
A two-stage cascade system employs two vapor-compression units working separately with different refrigerants, and interconnected in such a way that the evaporator of one system…