THE USE of DIRECT SOLAR ENERGY in ABSORPTION REFREGERATION EMPLOYING NH3 – H2O SYSTEM
DOI:
https://doi.org/10.31699/IJCPE.2010.4.2Keywords:
Solar Energy, Absorption RefrigerationAbstract
This work was conducted to study the coefficient of performance for solar absorption refrigeration by using direct solar energy using aqueous ammonia 0.45 mass fraction (ammonia – water).The experiments were carried out in solar absorption system .The system consisted of solar collector generator (0.25 m × 0.25 m × 0.04m) and condenser cooled by a water bath followed by liquid receiver and evaporator. The results showed that the maximum generator temperature was (92° - 97°) during June 2009, and the minimum evaporator temperature was (5°C - 10°C) for aqua ammonia system.. It was, also, found that the coefficient of performance, cooling ratio and amount of cooling obtainable increased with increasing maximum generator temperature and pressure. While the minimum evaporator temperature and concentration decreased with increasing maximum generator temperature and pressure. The coefficient of performance was (0.1096 - 0.2396).
References
Abdul Hai, S and Abdul Jabbar, K(1984)"Iraq’s National Paper,Solar in Iraq",Symposium using solar energy in Heating and cooling, Organization of Arab Petroleum Exporting and Solar Energy Research Center in the Scientific Research Council,Baghdad.
Sorensen B (2004) “Renewable Energy " ,third edition by Elsevier Science.
Enibe S. O. (1997) “Solar Refrigeration for Rural Applications", Elsevier Science, Renewable Energy, Vol. 12, No. 2, pages 157-167s.
Williams, D. A., Chung, R., Lof, G. O. G., Fester, D. A., and Duffle, J. A. (1957), "Intermittent Absorption Cooling Systems with Solar Regeneration", Paper No. 57-A-60, A.S.M.E.
Chinnappa, J. C. V., (1962), " Performance of an Intermittent Refrigerator Operated by a Flat-Plate Collector ”Solar Energy Vol. 6, pages 143-150.
Trombe, F., and Foex, M., (1964)," Economic Balance Sheet of Ice Manufacture with an Absorption Machine Utilizing the Sun as the Heat Source " New Courses of Energy, Vol. 4, U.N. Publication Sales No. 63.1.38, pages 56-59.
Farber, E. A., (1970)," Design and Performance of a Compact Solar Refrigeration System "Paper No. 6/58, 1970, International Solar Energy Society Conference, Melbourne, Australia.
Swartman, R. K., and Swaminathan, C., (1971)," Solar Powered Refrigerator, Mechanical Engineering" June 1971,mVol. 6, page. 22-24.
Staicovici M. D.,(1986)" An Autonomous Solar Ammonia-Water Refrigeration System", Solar Energy, Volume 36, Issue 2, 1986, Pages 115-124.
Kouremenos D. A, Antonopoulos K. A and Rogdakis. E. (1990),"Performance OF A Solar Driven Compound (NH3/H20- 20/LiBr) Sorption Refrigeration System In
Athens",Solar & Wind Technology Vol. 7, No. 6, pages 685-597.
Hammad M, Habali S. (2000)," Design and Performance Study of a Solar Energy Powered Vaccine Cabinet",Bywww.elsevier.com/locate/ap thermeng,Applied Thermal Engineering 20 Pages 1785-1798.
Nasiaf, A.D., (2010) "The Use of Direct Solar Energy in Absorption Refrigeration", MSc Thesis, Chem. Eng. Dept., Baghdad University.
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