Abstract

Environmental problems are becoming increasingly serious and important. As a countermeasure to prevent air pollution, district heating systems with high energy efficiency and low pollution are considered as a good alternative. The heating supply system of district heating is divided into heat production, heat transportation, and heat consuming subsystems. First, heat production system is analyzed by capacity and cost. Second, heat transportation system is analyzed to determine the traffic volume. Finally, the heat consuming system is analyzed by atmospheric temperature and the usage characteristics. Based on the analysis of the three subsystems, a cost model to determine the heat tranfer amounts is proposed. A case study with data of Korea District Heating Corporation is done. Additionally, sensitivity analysis is made to investigate the effect of changing market situation to the optimal solution.

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