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→Vapor absorption cycle: saving (a little) progress
===Vapor absorption cycle===
===Vapor absorption cycle===
The first cyclic refrigeration system used the vapor absorption cycle. It has become much less common, since it is less effective than the modern vapor compression (it has a low coefficient of performance). This vapor absorption cycle does not use very much electricity compared to other methods, but does require plenty of heat.
The first cyclic refrigeration system used the vapor absorption cycle. It has become much less common in modern refrigeration, since it is less effective than vapor compression (it has a low coefficient of performance). The vapor absorption cycle does not use very much electricity compared to other methods, but does require plenty of heat.
The key to this process is the ammonia, which is used as the refrigerant. Ammonia easily dissolves into water, which is why this specific substance is so important.
Although less efficient than modern options, vapor absorption still has its uses. It is very common in mobile homes and recreational vehicles, where propane or natural gas is readily available, but battery power is limited.
Although less efficient than modern options, vapor absorption still has its uses. It is very common in mobile homes and recreational vehicles, where propane or natural gas is readily available, but battery power is limited. It is also useful in some industries where excess heat can be put to good use.
*''low coefficient of performance
*''low coefficient of performance