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Optimal operation of the integrated district heating system with multiple regional branches

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Abstract

This paper presents an optimal management model for structural and operational optimization of an integrated district heating system (DHS) with multiple regional branches. A DHS consists of energy suppliers and consumers, district heating pipelines and heat storage facilities in a region. The integrated DHS considered in this paper consists of 11 regional DHS branches. In the optimal management system, production and consumption of heat, transport and storage of heat at each regional DHS are taken into account. The optimal management system is formulated as a mixed integer linear programming (MILP), where the objective is to minimize the overall cost or to maximize the profits of the integrated DHS by generating electricity while satisfying the operation constraints of heat units and networks, as well as fulfilling heating demands from consumers. Evaluation of the operation cost is based on daily operations for two months (during August and December) at each DHS located in Seoul and Gyeonggi-do in Korea. Results of numerical simulations show the increase of energy efficiency due to the introduction of the present optimal operation system.

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Authors and Affiliations

  1. Department of Chemical Engineering, Hanyang University, Seoul, 133-791, Korea

    Ui Sik Kim, Tae Chang Park & Yeong Koo Yeo

  2. Department of Chemical Engineering, Seoul National University of Technology, Seoul, 135-743, Korea

    Lae-Hyun Kim

Authors
  1. Ui Sik Kim
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  2. Tae Chang Park
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  3. Lae-Hyun Kim
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  4. Yeong Koo Yeo
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Correspondence to Yeong Koo Yeo.

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Kim, U.S., Park, T.C., Kim, LH. et al. Optimal operation of the integrated district heating system with multiple regional branches. Korean J. Chem. Eng. 27, 6–18 (2010). https://doi.org/10.1007/s11814-009-0348-7

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  • DOI: https://doi.org/10.1007/s11814-009-0348-7

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