Figure 4.14 Two refrigeration systems, vapour compression and absorption. In both cases
the fluid is evaporated at low temperature and pressure, picking up heat from the refrigerator,
then compressed in different ways. At high temperature and pressure the vapour condenses,
delivering heat to the surroundings after which it will expand via a throttle. (Reproduced from
Principles of Energy Conservation, A Culp, table 9.1, pg 482, 1991, with permission from
McGraw-Hill)
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