AN INDUSTRIAL VAPOR ABSORPTION AIR CONDITIONING APPLICATION

Yıl 2017, Cilt: 37 Sayı: 2, 49 - 60, 31.10.2017

Nazım Kurtulmuş , İlhami Horuz

Öz

In this study, the application of VAR system to an industrial company is investigated. For this purpose, the company which requires an air-conditioning system to its office building was chosen. After determining this company had an industrial furnace, this research aimed to design the VAR system utilizing waste heat from this furnace flue gases to air-condition the office building. Firstly, the physical properties and heat quantity of the flue gases were determined and the cooling load of the office building was calculated. It was found out that the flue gases had enough heat capacity to drive the VAR system. Next, single effect VAR system was introduced and the thermodynamic, energy and exergy analysis were made. The COP of the VAR system is calculated to be 0.64 and the highest exergy destruction was obtained at the generator which is 37.19kW. Finally, the application of the VAR system to this industrial company was analyzed in detail. The capital, maintaining and operating costs of the VAR system were analyzed and compared with alternative systems.

Anahtar Kelimeler

Absorption, Water-Lithium bromide solution

Kaynakça

• Balaji K. and Ramkumar R., 2012, Study of waste heat recovery from steam turbine xhaust for vapour absorption system in sugar industry, Procedia Engineering, 38, 1352-1356
• Chen Q., Han W., Zheng J., Sui J. and Jin H., 2014, The exergy and energy level analysis of a combined cooling, heating and power system driven by a small scale gas turbine at off design condition, Applied Thermal Engineering, 66, 590-602
• Choudhury B., Chatterjee P.K. and Sarkar J.P., 2010, Review paper on solar-powered air-conditioning through adsorption route, Renewable and Sustainable Energy Reviews, 14, 2189-2195 Cosenza F. and Vliet G.C., 1990, Absorption in falling water/libr films on horizontal tubes, Conference Proceeding by ASHRAE, 96, 673-701
• Çengel Y.A., 2002, Heat Transfer: A Practical Approach (Second edition), McGraw-Hill
• Davies J.T. and Rideal E.K., 1961, Interfacial phenomena, Academic Press, New York
• Dinçer I. and Rozen M., 2007, EXERGY: Energy, Environment and Sustainable Development, Elsevier science
• Elsafty A. and Al-Daini A.J., 2002, Economical comparison between a solar powered vapour absorption air-conditioning system and a vapour compression system in the Middle East, Renewable Energy, 25, 569-583
• Garimella S., 2012, Low-grade waste heat recovery for simultaneous chilled and hot water generation, Applied Thermal Engineering, 42, 191-198
• Genceli O.F., 1999, Heat exchangers, Birsen Publishing, İstanbul (in Turkish).
• Florides A.G., Kalogirou S.A., Tassou S.A. and Wrobel L.C., 2003, Design and construction of a LiBr-water absorption machine, Energy Conversion and Management, 44, 2483-2508
• Horuz I., 1998, A comparison between ammonia-water and water-lithium bromide solutions in vapor absorption refrigeration systems, International Communications Heat Mass Transfer, 5, 711-721
• 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, 6352-6383
• Kaynakli O. and Kilic M., 2007, Theoretical study on the effect of operating conditions on performance of absorption refrigeration system, Energy Conversion and Management, 48, 599-607
• Kaynaklı O., Saka K. and Kaynakli F.,2015, Energy and exergy analysis of a double effect absorption refrigeration system based on different heat sources, Energy Conversion and Management, 106, 21-30
• Kaita Y., 2001, Thermodynamic properties of lithium bromide-water solutions at high temperatures, International Journal of Refrigeration, 24, 374-390
• Kilic M. and Kaynakli O., 2007, Second law-based thermodynamic analysis of water-lithium bromide absorption refrigeration system, Energy, 32, 1505-1512 Law R., Harvey A. and Reay D., 2013, Opportunities for low-grade heat recovery in the UK food processing industry, Applied Thermal Engineering, 53, 188-196
• Li W., Wu X., Luo Z., Yao S. and Xu J., 2011, Heat transfer characteristics of falling film evaporation on horizontal tube arrays, International Journal of Heat and Mass Transfer, 54, 1986-1993
• Lorenz J.J. and Yung D., 1979, A note on combined boiling evaporation of liquid films on horizontal tubes, Journal of Heat Transfer, 101, 178-180
• Ribatski G. and Thome J.R., 2007, Experimental study on the onset of local dryout in an evaporating falling film on horizontal plain tubes, Experimental Thermal and Fluid Science, 31, 483-493
• Seewald J.S. and Blanco H.P., 1994, A simple model for calculating the performance of a Lithium–Bromide/Water coil absorber, Conference Proceeding by ASHRAE, 100, 318–328
• Şencan A.,Yakut K.A and Kalogirou S.A., 2005, Exergy analysis of lithium bromide/water absorption systems, Renewable Energy, 30, 645-657
• Thome J.R., 2009, Engineering Data Book III, Wolverine Tube, Inc
• Wang C., He B., Sun S., Wu Y., Yan N., Yan L. and Pei X., 2012, Application of a low pressure economizer for waste heat recovery from the exhaust flue gas in a 600 MW power plant, Energy, 48, 196-202