ENERGY CONSUMPTION AND OPERATING COST OF A SOLAR/GAS POWERED ABSORPTION AIR CONDITIONING SYSTEM
Keywords:
Energy, absorption, air conditioning, solar, costAbstract
Electrically powered vapour compression systems are usually employed in air conditioning of buildings. However, there are concerns over the high power consumption by these systems which lead to high electricity bills. Absorption cooling has the prospect to consume lower power. This study has carried out an assessment of the energy consumption and operating cost of a solar and gas powered absorption air conditioning system. The experimental plant has a prototype absorption chiller which operates on the lithium bromide/ water pair. The thermal energy requirement is supplied by solar energy via solar collector as well as an auxiliary gas burner powered by liquefied petroleum gas. The experimental plant was run under varying weather conditions in both solar and gas heating modes to cool a test room. Energy consumed as well as the cost of energy consumed were computed. Results showed the least gas consumption occurred on days with high solar fraction. Total daily energy consumption cost varied from $ 0.6 / day for a day with solar fraction of 0.6 to $ 1.21 /day for a day with solar fraction of 0. The cost of electric power consumption of the absorption system was lower in comparison to that of a conventional vapour compression chiller in the order of 44.4% to 64.2%. However, the cost per kWh of cooling for the conventional vapour compression chiller was lower than that of the absorption system.
References
Kalkan N., Young E.A. and Celiktas A., 2012. Solar Thermal Air Conditioning Technology Reducing the Footprint of Solar Thermal Air Conditioning, Renewable and Sustainable Energy Reviews, 16: 6352–83.
Ghafoor A. and Munir A., 2015. Worldwide Overview of Solar Thermal Cooling Technologies, Renewable and Sustainable Energy Reviews, 43: 63–774.
Sarbu I. and Sebarchievici C., 2015. General Review of Solar Powered Close Sorption Refrigeration Systems, Energy Conversion and Management, 105: 403–442.
Henning H., 2007. Solar Assisted Air Conditioning of Buildings, An Overview, Applied Thermal Engineering, 27: 1734–49.
Al–Alili A., Islam M.D., Kubo I., Hwang Y. and Radermacher R., 2012. Modelling of a Solar Powered Absorption Cycle for Abu Dhabi, Applied Energy, 93: 160–167.
Sun H., Xu Z.Y., Wang H. and Wang R., 2015. A Solar/Gas Fired Absorption System for Cooling and Heating in A Commercial Building, Energy Procedia, 70: 518–528.
Zhai X., Li Y., Cheng X. and Wang R., 2015. Experimental Investigation on a Solar Powered Absorption Radiant Cooling System, Energy Procedia, 70: 552–559.
Albers J., 2014. New Absorption Chiller and Control Strategy for The Solar Assisted Cooling System at the German Federal Environment Agency, International Journal of Refrigeration, 39: 48–56.
Pongtorukulpanich A., Thepa S., Amornkitbamrung M. and Butcher C., 2008. Experience with A Fully Operational Solar Driven 10 ton LiBr/ H2O Single Effect Absorption Cooling System in Thailand, Renewable Energy, 35(5): 943–9.
He T., Zhang X., Wang C., Wang M., Li B., Xue N., Shimizu K., Takahashi K. and Wu Y., 2015. Application of Solar Thermal Cooling System Driven by Low Temperature Heat Source in China, Energy Procedia, 70: 454–461.
Abdullah G., Saman W., Whaley D. and Belusko M., 2015. Optimization of Stand-alone Solar Heat Fired Absorption Chiller for Typical Australian Homes, Procs. of the Intl. Conf. on Solar Heating and Cooling for Buildings and Industry, 2–4 December, 2015, Istanbul,
Turkey, 692–701.
Agrouaz Y., Bouhal T., Allouhi A., Kousksan T., Jamil A. and Zeraouli Y., 2017. Energy and Parametric Analysis of Solar Absorption Cooling Systems in Various Moroccan Climates, Case Studies in Thermal Engineering, 9: 28–39.
Demirel Y., 2012. Energy, Green Energy and Technology, Springer–Verlag, London Ltd., http://www.springer.com/cda/content [Accessed: 7 April 2018].
Duffie J.A. and Beckman W.A., 2013. Solar Engineering of Thermal Processes, 4th Ed., John Wiley and Sons Inc., 111 River Street Hoboken, New Jersey, USA, 236–667.
Phadke A., Abhyankar N. and Shah N., 2014. Avoiding 100 New Power Plants by Increasing Efficiency of Room Air Conditioners in India, Opportunities and Challenges, Lawrence Berkeley National Laboratory, Berkeley, U.S.A., http://www.cseindia.org [Accessed: 25 July 2018].
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