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Erschienen in:
2015 | OriginalPaper | Buchkapitel
Optimization of a Combined Heat and Power Generation System with Ice Thermal Storage
verfasst von : Cheng-gang Cui, Xiao-fei Yang, Feng Tian, Ting-yu Gao, Zhi-cong Zhu
Erschienen in: Low-carbon City and New-type Urbanization
Verlag: Springer Berlin Heidelberg
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Abstract
This paper explores the optimization of a combined heat and power generation system (CCHP) with ice thermal storage air-conditioning system in consideration of minimal cost. A CCHP requires the simultaneity of the electrical and thermal demands. However, the thermal demand is strongly time-varying or even discontinuous. The ice thermal storage provides an attractive solution to the CCHP by shifting the electrical power while more profitably exploiting the thermal energy. The optimization of the simultaneous use of a gas turbine, an absorption chiller, a brine chiller, and an ice-storage tank to satisfy given electricity, heat, and cooling demands is considered. An MINLP algorithm is used to develop optimal operating strategies for the cogeneration system. Case study is based on a building belonging to Shanghai Advanced Research Institute. Finally, the results of economic analysis providing some guidelines of operation strategies to a CCHP with ice thermal storage.