Modeling and optimization of a solar assisted heat pump using ice slurry as a latent storage material |
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| Authors: | Justin Tamasauskas Michel Poirier Radu Zmeureanu Roberto Sunyé |
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| Affiliation: | 1. CanmetENERGY, Natural Resources Canada, Varennes, Québec, Canada J3X 1S6;2. Center for Building Studies, Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Québec, Canada H3G 1MG;1. Agricultural University of Cracow, Department of Forest Pathology, Al. 29 Listopada 46, 31-425 Cracow, Poland;2. Institute of Microbiology ASCR, Vídeňská 1083, 142 20 Praha 4, Czech Republic;3. Department of Forest Protection, Forest Entomology and Climatology, Al. 29 Listopada 46, 31-425 Cracow, Poland;1. Medical University of Warsaw, Department of Inorganic and Analytical Chemistry, Banacha 1, 02-097 Warsaw, Poland;2. Polish Academy of Science, Institute of High Pressure Physics, Sokolowska 29/37, 01-142 Warsaw, Poland;1. Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy;2. Consiglio per la Ricerca e la sperimentazione in Agricoltura – Centro di Ricerca per lo Studio delle relazioni tra Pianta e Suolo, Via della Navicella 2, 00184 Rome, Italy;1. USDA Forest Service, Pacific Northwest Research Station, Corvallis, OR 97331, United States;2. Oregon State University, United States;1. Kitasato Institute for Life Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan;2. Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan |
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| Abstract: | This paper presents the modeling and optimization of a solar assisted heat pump using ice slurry. Solar collectors are used as the primary source of thermal energy, with two distinct loops allowing the collectors to operate in series with an ice tank, or a warm water tank. Thermal energy stored in the ice tank is transferred to a warm water distribution tank via a heat pump. First, a new mathematical model of an ice slurry storage tank is presented. Validation of the model with experimental data confirms its ability to predict the ice mass and tank fluid temperatures during the charging and discharging modes of operation. The developed ice tank model is combined with the TRNSYS energy simulation program to formulate a complete model of the proposed heat pump system. This computer model then serves as a base for a mathematical optimization with the objective to minimize the energy use for heating and DHW over a single heating season. Simulated results demonstrate the potential of the optimized system in reducing the heating operating energy use of a high performance home in Montreal, QC. |
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