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An experimental exergetic comparison of four different heat pump systems working at same conditions: As air to air, air to water, water to water and water to air

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  • Çakır, Uğur
  • Çomaklı, Kemal
  • Çomaklı, Ömer
  • Karslı, Süleyman

Abstract

In this study, we designed a multifunctional heat pump system using just one scroll compressor and which can be run in four different modes, namely air to air, air to water, water to water and water to air, in order to make an experimental energetic and exergetic performance comparison. Experimental system consists of two condensers and two evaporators and uses R22 as working fluid. One of the evaporators and condensers uses water and the others use air as heat source/sink. Heating capacities of four heat pump types are equal to each other. It is realized by adjusting the mass flow rate and temperature level of external fluid of condenser. Results show that the heat pump unit which has the maximum COP (coefficient of performance) value is water to air type with 3.94 and followed by water to water type with 3.73, air to air type with 3.54 and air to water type with 3.40. Ranking of four heat pump types with respect to their mean exergy efficiency is as follows; water to air type with 30.23%, air to air type with 30.22%, air to water type with 24.77% and water to water type with 24.01%. Exergy destruction rates of the systems were investigated in this study and the results revealed that the heat pump type which has the maximum exergy destruction is air to air type with 2.93 kW. The second highest one is air to water type with 2.84 kW. The third highest one is water to air type with 2.64 kW and last one is water to water type with 2.55 kW. It is understood that the temperature of the evaporator external fluid affects the exergetic efficiency of the system more than the mass flow rate. In contrast to the previous, the dominant parameter which has more important effect on the exergy destruction of the heat pump unit is the mass flow rate of evaporator external fluid.

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  • Çakır, Uğur & Çomaklı, Kemal & Çomaklı, Ömer & Karslı, Süleyman, 2013. "An experimental exergetic comparison of four different heat pump systems working at same conditions: As air to air, air to water, water to water and water to air," Energy, Elsevier, vol. 58(C), pages 210-219.
    • Handle: RePEc:eee:energy:v:58:y:2013:i:c:p:210-219
    DOI: 10.1016/j.energy.2013.06.014
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    1. Comakli, K. & Simsek, F. & Comakli, O. & Sahin, B., 2009. "Determination of optimum working conditions R22 and R404A refrigerant mixtures in heat-pumps using Taguchi method," Applied Energy, Elsevier, vol. 86(11), pages 2451-2458, November.
    2. Bakirci, Kadir & Ozyurt, Omer & Comakli, Kemal & Comakli, Omer, 2011. "Energy analysis of a solar-ground source heat pump system with vertical closed-loop for heating applications," Energy, Elsevier, vol. 36(5), pages 3224-3232.
    3. Lee, Ho-Saeng & Kim, Hyeon-Ju & Kang, Dong-gyu & Jung, Dongsoo, 2012. "Thermodynamic performance of R32/R152a mixture for water source heat pumps," Energy, Elsevier, vol. 40(1), pages 100-106.
    4. Lohani, S.P., 2010. "Energy and exergy analysis of fossil plant and heat pump building heating system at two different dead-state temperatures," Energy, Elsevier, vol. 35(8), pages 3323-3331.
    5. Sopha, Bertha Maya & Klöckner, Christian A. & Skjevrak, Geir & Hertwich, Edgar G., 2010. "Norwegian households' perception of wood pellet stove compared to air-to-air heat pump and electric heating," Energy Policy, Elsevier, vol. 38(7), pages 3744-3754, July.
    6. Büyükalaca, O. & Ekinci, F. & Yılmaz, T., 2003. "Experimental investigation of Seyhan River and dam lake as heat source–sink for a heat pump," Energy, Elsevier, vol. 28(2), pages 157-169.
    7. Catton, Will & Carrington, Gerry & Sun, Zhifa, 2011. "Exergy analysis of an isothermal heat pump dryer," Energy, Elsevier, vol. 36(8), pages 4616-4624.
    8. Torres R, E & Picon Nuñez, M & Cervantes de G, J, 1998. "Exergy analysis and optimization of a solar-assisted heat pump," Energy, Elsevier, vol. 23(4), pages 337-344.
    9. Meggers, Forrest & Ritter, Volker & Goffin, Philippe & Baetschmann, Marc & Leibundgut, Hansjürg, 2012. "Low exergy building systems implementation," Energy, Elsevier, vol. 41(1), pages 48-55.
    10. Guo, Jiangfeng & Huai, Xiulan, 2012. "The application of entransy theory in optimization design of Isopropanol–Acetone–Hydrogen chemical heat pump," Energy, Elsevier, vol. 43(1), pages 355-360.
    11. Li, Y.W. & Wang, R.Z. & Wu, J.Y. & Xu, Y.X., 2007. "Experimental performance analysis and optimization of a direct expansion solar-assisted heat pump water heater," Energy, Elsevier, vol. 32(8), pages 1361-1374.
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    2. Akbulut, Ugur & Utlu, Zafer & Kincay, Olcay, 2016. "Exergy, exergoenvironmental and exergoeconomic evaluation of a heat pump-integrated wall heating system," Energy, Elsevier, vol. 107(C), pages 502-522.
    3. Won-Suk Yang & Young Il Kim, 2022. "Cooling Performance Enhancement of a 20 RT (70 kW) Two-Evaporator Heat Pump with a Vapor–Liquid Separator," Energies, MDPI, vol. 15(11), pages 1-18, May.
    4. Bo Shen & Moonis R. Ally, 2020. "Energy and Exergy Analysis of Low-Global Warming Potential Refrigerants as Replacement for R410A in Two-Speed Heat Pumps for Cold Climates," Energies, MDPI, vol. 13(21), pages 1-18, October.
    5. Gaigalis, Vygandas & Skema, Romualdas & Marcinauskas, Kazys & Korsakiene, Irena, 2016. "A review on Heat Pumps implementation in Lithuania in compliance with the National Energy Strategy and EU policy," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 841-858.

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    Keywords

    Heat pump; Exergy analysis; COP;
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