A concept of combined cooling,heating and power system utilising solar power and based on reversible solid oxide fuel cell and metal hydrides |
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| Authors: | Mykhaylo Lototskyy Serge Nyallang Nyamsi Sivakumar Pasupathi Ivar Wærnhus Arild Vik Crina Ilea Volodymyr Yartys |
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| Affiliation: | 1. HySA Systems, South African Institute for Advanced Materials Chemistry, Univ. of the Western Cape, Bellville, South Africa;2. CMR Prototech AS, Bergen, Norway;3. Institute for Energy Technology, Kjeller, Norway |
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| Abstract: | In energy systems, multi-generation including co-generation and tri-generation has gained tremendous interest in the recent years as an effective way of waste heat recovery. Solid oxide fuel cells are efficient power plants that not only generate electricity with high energy efficiency but also produce high quality waste heat that can be further used for hot and chilled water production. In this work, we present a concept of combined cooling, heating and power (CCHP) energy system which uses solar power as a primary energy source and utilizes a reversible solid oxide fuel cell (R-SOFC) for producing hydrogen and generating electricity in the electrolyser (SOEC) and fuel cell (SOFC) modes, respectively. The system uses “high temperature” metal hydride (MH) for storage of both hydrogen and heat, as well as “low temperature” MH's for the additional heat management, including hot water supply, residential heating during winter time, or cooling/air conditioning during summer time.The work presents evaluation of energy balances of the system components, as well as heat-and-mass transfer modelling of MH beds in metal hydride hydrogen and heat storage system (MHHS; MgH2), MH hydrogen compressor (MHHC; AB5; A = La + Mm, B | |
| Keywords: | CCHP Tri-generation Reversible solid oxide fuel cell Hydrogen storage Metal hydride heat pump |
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