The analysis of triangular cycles of cooling and heating |
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| Affiliation: | 1. Energy & Resources Laboratories, Industrial Technology Research Institute, D400 ERL/ITRI, Bldg. 64, 195–6 Section 4, Chung Hsing Road, Chutung, Hsinchu 310, Taiwan;2. Odessa State Academy of Refrigeration, Odessa, 65020, Ukraine;1. Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia;2. Department of Air conditioning and Refrigeration, Al-Mustaqbal University College, Babylon, Iraq;1. Department of Mechanics, Electrical Power and Computer, Science and Research Branch, Islamic Azad University, Tehran, Iran;2. Faculty of Mechanical Engineering, Sahand University of Technology, Sahand New Town, Tabriz, Iran;1. European Institute for Energy Research, Emmy-Noether-Str. 11, 76131 Karlsruhe, Germany;2. Engineering Office, Ludowiciring 13c, D-76751 Jockgrim, Germany;1. Institute of Turbomachinery, State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, No. 28 Xianning West Road, Xi’an 710049, PR China;2. Dongfang Turbine Co., Ltd., No. 666 Jinshajiang West Road, Deyang 618000, PR China;1. Electrical Engineering Department, University of Moncton, NB, Canada;2. ClairiTech Innovations Inc, Boudreau-Ouest, NB, Canada |
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| Abstract: | Theoretical study of triangular cycle with cooling and heating at variable temperatures is investigated in this study. Simple approximated correlations for COP are obtained. By implementation of the cooling and heating using multistage machines, single-compressor machines accompanying with refrigerants mixtures, semiconductor thermopiles, and the supercritical cycles with variable temperature of heat rejection, the “triangular” cycle shows promising interesting features. |
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