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|Title:||Thermodynamic modeling of an ammonia-water absorption chiller|
|Authors:||Chua, H.T. |
|Source:||Chua, H.T., Toh, H.K., Ng, K.C. (2002-11). Thermodynamic modeling of an ammonia-water absorption chiller. International Journal of Refrigeration 25 (7) : 896-906. ScholarBank@NUS Repository. https://doi.org/10.1016/S0140-7007(01)00101-3|
|Abstract:||This article develops a general thermodynamic framework for the modeling of an irreversible absorption chiller at the design point, with application to a single-stage ammonia-water absorption chiller. Component models of the chiller have been assembled so as to quantify the internal entropy production and thermal conductance (UA) in a thermodynamically rigorous formalism, which is in agreement with the simultaneous heat-and-mass transfer processes occurring within the exchangers. Local thermodynamic balance (viz. energy, entropy, and mass balance) and consistency within the components is respected, in addition to the overall thermodynamic balance as determined by the inlet and outlet states of the components. For the absorbers, Colburn-and-Drew mass transfer equations are incorporated to describe the absorption process. Furthermore, the impact of various irreversibilities on the performance of chiller is also evaluated through the use of a general macroscopic equation. © 2002 Elsevier Science Ltd and IIR. All rights reserved.|
|Source Title:||International Journal of Refrigeration|
|Appears in Collections:||Staff Publications|
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