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Absorption phenomenon of NH3 into NH3-H2O solution has analysed theoreticcally. The heat transfer coefficient obtained from the coupled heat and mass transfer mathematic model. This heat transfer coefficient is used to calculate the variation of the simulated value of heat load. The practical decrease of wetted ratio analyses were taken into account when the solution flow from the top to the bottom...
This paper present the coefficient of performance analysis of a NH3-H2O absorption refrigeration machine with the heat supply 3.76kW, cooling the 23% NaCl solution from the ambient temperature 30°C to −18°C. The working machine is controlled according to the different flow rates of the weak solution supplying the absorber. The fluctuation of the cooling capacity according to the NH3 refrigerant throttling...
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