Refrigerating machines, absorption

Several other methods involving cooling towers have been used to reduce refrigeration energy consumption. These systems, as applied to centrifugal and absorption refrigeration machines, are known as... 

SOME PHYSICAL PROPERTIES OF LITHIUM CHLORIDE-WATER SOLUTION FOR THE DESIGNING OF ABSORPTION REFRIGERATING MACHINES. 

The project foresees installation on an NHP of an absorptive refrigerating machine for cooling water down to 7°C which can be used for air-conditioning needs in a heating district during summer time. The capacity of the refrigerating machine is up to 10 MW. 

Conventional refrigeration is based on the evaporation of a refrigerant. The evaporator produces cooling, the compressor generates high-pressure energy, and the condenser rejects heat to the environment. An absorption machine differs from a vapor compressor only in the way the refrigerant is compressed from the evaporator to the condenser. 

STEAM-ABSORPTION CONDENSER - That part of a steam-absorption machine in which the water refrigerant is condensed by cooling-tower water and returned to the evaporator or chiller. 

STEAM-ABSORPTION MACHINE - A refrigeration or air-conditioning machine which uses, as a refrigerant, water evaporated by absorption in a brine regenerated by steam and condensed by cooling-tower water. 

Figures 17 and 18 represent the COP s evolution versus the intermediate pressure. Pi, P2. They show that the pressure averages don t have a great influence on the increase of the absorption refrigerating system performance the advantage of this installation is that it can increase the difference of title between rich solution and weak solution. It is remarkable that this machine can operate at low temperatures. The efficiency of the hybrid absorption system proposed can reach 8.2, while the efficiency, proposed in literature which cannot exceed 5.

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