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KEY WORDS

absorption, refrigeration, ammonia-water, strong, weak, solution, COP

ABSTRACT

The absorption refrigeration system differs fundamentally from vapour compression system only in the method of compressing the refrigerant. So-called thermal-compressor, which consists of an absorber, generator and pump, replace the compressor of a vapour compression system. For heating process, instead electric energy, thermal energy in the form of saturated steam, hot water, natural gas or the waste heat sources are being used. In this article, on the example of single-effect absorption system using ammonia-water solution with ammonia as the refrigerant and water as the absorbent, research has been devoted to investigate theoretically the performance of two different operating modes of absorption refrigeration process with weak and strong ammonia-water solution in the generator.

CITATION INFORMATION

Acta Mechanica Slovaca. Volume 20, Issue 2, Pages 42 – 46, ISSN 1335-2393

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  Comparison of the Performances of Absorption Refrigeration Cycles with Weak and Strong Ammonia-Water Solution

REFERENCES

[1] Ziegler, F (1999). Recent developments and future prospects of sorption heat pump system. International Journal of Thermal Science, 38, pp.191-208.
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[3] Mohideen, S.T, Renganarayanan, S (2006). Heat and mass transfer studies on 134 A-DMAC based falling film absorbers for absorption refrigeration system, Proceedings of the 4th WSEAS Int. Conf. on Heat Transfer, Thermal Engineering and Environment, Elounda, Greece, pp. 342-350.
[4] Poberžnik, S, Goricanec, D, Krope, J (2007). Traditional vs. alternative energy house heating source, Proceedings of the 2ndIASME / WSEAS International Conference on Energy & Environment (EE'07), Portoroz, Slovenia, pp. 15-17.
[5] Feng X, Goswami D.Y (1999). Thermodynamic Properties of ammonia-water mixtures for Power-cycle application, Energy, 24, pp. 525-536.
[6] Sun, D (1998). Comparison of the performances of NH3- H2O, NH3-LiNO3 and NH3-NaSCN absorption refrigeration systems, Energy Conversion and Management, 39, pp. 357-368.
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[8] Herold, K.E, Radermacher, R (1995). Absorption chillers and Heat Pumps, CRC Press, Inc., Boca Raton

Latest Issue

ams 2 2016

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