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首页> 外文期刊>International Journal of Refrigeration >Design and experimental study of a plate-type falling-film generator for a LiBr/H2O absorption heat pump
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Design and experimental study of a plate-type falling-film generator for a LiBr/H2O absorption heat pump

机译：Lib / H2O吸收热泵板式下落膜发生器的设计与实验研究

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摘要

A novel plate-type falling-film generator for a LiBr/H2O absorption heat pump and the resulting generator/condenser unit prototype are presented in this paper. The generator consists of a directly-connected overflow solution distributor. This novel structure can ensure uniform solution distribution and stable falling-film flow; it is also more compact and provides greater feasibility to regulate capacity by plate assembly compared to conventional distributors for falling film. Visual flow pattern experiments were conducted in a vacuum atmosphere. Split flows and obvious parabolic dry areas were shown to exist. The method to improve the wetting rate was also investigated. Thermal performance tests show that the heat transfer coefficient of the generator ranged from 0.735 kW.m(-2).K-1 to 0.856 kW.m(-2).K-1. The flow and thermal experiment results demonstrate the feasibility of the plate-type falling-film generator for a LiBr/H2O absorption heat pump. The concept of the novel generator can be used for all absorption heat pump components and thus greatly increase the generalizability of the absorption technology. (C) 2016 Elsevier Ltd and IIR. All rights reserved.
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