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International Journal of Photoenergy
Volume 2013 (2013), Article ID 490124, 6 pages
http://dx.doi.org/10.1155/2013/490124
Research Article

Experimental Investigation on an Absorption Refrigerator Driven by Solar Cells

1Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
2Department of Mechanical Engineering, National Taiwan University, Taipei 10617, Taiwan
3Department of Computer Science and Information Engineering, National Taipei University of Technology, Taipei 10608, Taiwan

Received 23 November 2012; Accepted 7 January 2013

Academic Editor: Ho Chang

Copyright © 2013 Zi-Jie Chien et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This experiment is to study an absorption refrigerator driven by solar cells. Hand-held or carried in vehicle can be powered by solar energy in places without power. In the evenings or rainy days, it is powered by storage battery, and it can be directly powered by alternating current (AC) power supply if available, and the storage battery can be charged full as a backup supply. The proposed system was tested by the alternation of solar irradiance 550 to 700 W/m2 as solar energy and 500ml ambient temperature water as cooling load. After 160 minutes, the proposal refrigerator can maintain the temperature at 5–8°C, and the coefficient of performance (COP) of NH3-H2O absorption refrigeration system is about 0.25. Therefore, this system can be expected to be used in remote areas for refrigeration of food and beverages in outdoor activities in remote and desert areas or long-distance road transportation of food or low temperature refrigeration of vaccine to avoid the deterioration of the food or the vaccines.