Design and Performance Study of a Novel Refrigeration System

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Abstract:

In order to solve the problems of pressure drop and leakage in the refrigerant circuit, a novel continuous adsorption system suited to use low heat source (75-85 oC) was designed and set up. To analyze and compare with the conventional system to reveal the similarity and difference, this paper sets up the mathematical models for these two systems. The adsorbers, condensers and evaporators in these two systems are exactly the same and the two systems are compared by working at the identical conditions, which is not feasible in real experimental lab. All the parameters and models used in this calculation are based on experimental results. Analysis demonstrates that the two kinds of system have very close performances, that is, the novel system has a relatively higher cooling capacity while the conventional system has a relatively higher COP.

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Advanced Materials Research (Volumes 354-355)

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819-827

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October 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Wang RZ. Adsorption refrigeration research in Shanghai Jiao Tong University. Renewable and Sustainable Energy Review 2001;5(1):1–37.

DOI: 10.1016/s1364-0321(00)00009-5

Google Scholar

[2] Sakoda A, Suzuki M. Fundamental study on solar powered adsorption cooling system. J Chem Enging Jpn 1984;17(1):52–57.

Google Scholar

[3] Cho SH, Kim JN. Modeling of a silica gel/water adsorption cooling systems. Energy 1992;17(9):829–839.

DOI: 10.1016/0360-5442(92)90101-5

Google Scholar

[4] Saha BB, Boelman EC, Kashiwagi T. Computer simulation of a silica gel-water adsorption refrigeration cycle – the influence of operating conditions on cooling output and COP. ASHRAE Trans Res 1995;101(2):348–357.

Google Scholar

[5] Boelman EC, Saha BB, Kashiwagi T. Parametric study of a silica gel-water adsorption refrigeration cycle – the influence of thermal capacitance and heat exchanger UA-values on cooling capacity, power density and COP. ASHRAE Trans1997;103(1):139–148.

Google Scholar

[6] Yonezawa Y, Matsushita M, Oku K, Nakano H, Okumura S, Yoshihara M, Sakai A, Morikawa A. Adsorption refrigeration system. US patent no. 4881376, 1989.

Google Scholar

[7] Solar/waste heat driven two-stage adsorption chiller: the prototype. B.B. Saha, A. Akisawa, T. Kashiwagi. Renewable Energy 2001; 23:93-101.

DOI: 10.1016/s0960-1481(00)00107-5

Google Scholar

[8] Waste heat driven dual-mode, multi-stage, multi-adsorber regenerative adsorption system B.B. Saha, S. Koyama, T. Kashiwagi, A. Akisawab, K.C. Ngc, H.T. Chua. International Journal of Refrigeration 2003; 26: 749-757.

DOI: 10.1016/s0140-7007(03)00074-4

Google Scholar

[9] H. Yanagi. Development of adsorption refrigerator using a direct contact condensation and evaporation on sprayed water. Proceedings of the International Sorption Heat Pump Conference, Germany 1999: 671-676.

Google Scholar

[10] R.E. Critoph. Simulation of a continuous multiple-adsorber regenerative adsorption cycle. International Journal of Refrigeration 2001; 24:428-437.

DOI: 10.1016/s0140-7007(00)00026-8

Google Scholar

[11] Y.L. Liu, R.Z. Wang, Z.Z. Xia, Experimental study on a continuous adsorption water chiller with novel design, International Journal of Refrigeration, 2005; 28(2): 218-230

DOI: 10.1016/j.ijrefrig.2004.09.004

Google Scholar

[12] Y.L. Liu, R.Z. Wang, Z.Z. Xia, Experimental performance of a silica gel-water adsorption chiller, Applied Thermal Engineering, 2005;25(2-3): 359-375

DOI: 10.1016/j.applthermaleng.2004.06.012

Google Scholar

[13] D.C. Wang, Z.Z. Xia., J.Y. Wu., R.Z. Wang., H. Zhai., W.D. Dou., Study of a novel silica gel –water adsorption chiller. Part I. Design and performance prediction, International Journal of Refrigeration, 2005;(28): 1073-1083

DOI: 10.1016/j.ijrefrig.2005.03.001

Google Scholar

[14] Elisa C. Boelman. Computer simulation of a silica gel-water adsorption refrigeration cyle-The influence of operationg conditions of cooling output and COP. ASHARE Transactions 1995; 13(6): 348-355.

Google Scholar

[15] J.Y. Wu, R.Z. Wang, Y.X. Xu. Dynamic simulation and experiments of a heat regenerative adsorption heat pump. Energy conversion and managemant, 2000; 41(11):1007-1018.

DOI: 10.1016/s0196-8904(99)00161-2

Google Scholar

[16] Y.L. Liu., Study on a solar driving silica gel-water adsorption refrigeration system. Doctor Thesis, Shanghai Jiao Tong University, 2005.

Google Scholar