Design, Construction and Testing of a Solar Adsorption Refrigerator Using Synthesised Zeolite A and Water as Adsorbent/Adsorbate Pair

Abstract:

This paper presents the design and construction of a simple Zeolite-water solar adsorption refrigeration system which has been fabricated and tested in the Department of Mechanical Engineering, Ahmadu Bello University, Zaria, Nigeria at a geographical location of latitude 11^o11’’NE. The theory on which this design is based is on the use of Zeolite-water adsorbent/ adsorbate pair to produce refrigeration. The energy source is a parabolic trough solar concentrator that collects and radiates solar thermal energy onto an air tight black coated absorber (generator) charged with Zeolite and water placed at the trough’s focal point. The absorber adsorbs and desorbs the adsorbate and produces refrigeration as vapor is released through a condenser and an evaporator. Constructional details of the system show the systems height at 1.2 m, parabolic trough dimensions of 0.6m by 0.45m, the cold chamber, has a capacity of 36 liters. The system was evaluated by leaving it outside under solar radiation and monitoring temperatures at various points inside the collector, the generator, and the evaporator through the use of thermocouple sensors. The highest and lowest temperatures of the absorber were 60.1°C and 25°C respectively. The lowest refrigeration temperature of 9.8°C was attained with 179J of cooling.

• Periodical: Advanced Materials Research (Volume 367)
• Pages: 495-500
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.367.495
• Online since: October 2011
• Authors: I. Amber, C.O. Folayan, R.B.O. Suleiman, A.Y. Atta
• Keywords: Adsorbate, Adsorbent, Adsorption, Zeolite

References

[1] T. Chunfang, L. Qinghai, L. Xiangmei, Z. Xiaojuan, Comparison of Several Eco-friendly Refrigeration Technologies China Renewable Energy Resources and a Greener Future Vol. 8, 2006, 4-6.

[2] E. E. Anyanwu, Review of solid adsorption solar refrigeration II: An overview of the principles and theory Energy Conversion and Management Volume 45, Issues 7-8 , 2004, 1279-1295.

DOI: 10.1016/j.enconman.2003.08.003

[3] E.E. Anyanwu, and N.V. Ogueke, Thermodynamic design procedure for solid adsorption solar refrigerator Renewable Energy Volume 30, Issue, 2004, 81-96.

DOI: 10.1016/j.renene.2004.05.005

[4] C. Hildbrand, P. Dird, M. Pous, F. Bucther, New solar powered Adsorption refrigeration with high performance Solar Energy, 77, 2004, 311-318.

DOI: 10.1016/j.solener.2004.05.007

[5] E. D. Ing and P.E. Sagredo, Design and construction of solar energy refrigeration using vacuum concentric tubes with adsorption severed LACCEI international Latin America and carrebian conference for engineering and Technology, (2004).

[6] S. Ismail, Y. Cemil, B. Kaftanoglu D. Baker, A. Caglar, Adsorption properties of a natural Zeolite-water pair for use in adsorption cooling cycles. Applied energy 87, 2010, 2062-(2067).

DOI: 10.1016/j.apenergy.2009.11.027

[7] R. Miguel, R.L. Espinoza, J. H. Manfred, P.F. Antonio (2003): Evaluation of a Zeolite water solar adsorption refrigerator. http: /fc. uni. edu. pe/mhom/ISES2003%20.

[8] K. Siegrfried, and B. Detlef: Experiment on Solar adsorption refrigeration, using Zeolite andwaterhttp: /www. containedenergy. com/html/zeolite_cooling. html(solar%20refrigeration). pdf 9] D. I., Tchevner, Use of natural Zeolite in solar Refrigeration: ASSETS Abstracts of selected solar energy technology, 1983, 21-23.

DOI: 10.1016/j.solener.2016.09.015

[10] K. Sumathy and Li. Zhongfu, A solar-powered ice-maker with the solid adsorption pair of activated carbon and methanol. International Journal of Energy Research, 23, 1999, 517-527.

DOI: 10.1002/(sici)1099-114x(199905)23:6<517::aid-er495>3.0.co;2-b

[11] R.Z. Wang, J.P. Jia, Y.H. Zhu, Y. Teng, J.Y. Wu and J. Cheng, Study on a new solid adsorption refrigeration pair: active carbon fibre-methanol. ASME J. Solar Energy Engg, 119, 1997, 214-219.

DOI: 10.1115/1.2888021

[12] R.E. Critoph, Limitations of adsorption cycles for solar cooling. Solar Energy, 41(1), 1988, 23- 31.

DOI: 10.1016/0038-092x(88)90111-9

[13] R.E. Critoph, and Y. Zhong, Review of trends in solid sorption refrigeration and heat pumping technology J. process mechanical Engineering ProcIMech vol219 Part E, 2004, 285-300.

DOI: 10.1243/095440805x6982

[14] I. Amber, Design construction and tesing of a Zeolite/water solar adsorption refrigeration. M. Sc(Mechanical), Ahmadu Bello University Zaria, (2008).

[15] Fundamentals of Zeolite/water Technology (2007) pp.1-2. http/www. zeo-tech-de/htm/e/e-grund/. htm.