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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received October 28, 2008
Accepted February 1, 2009

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Optimization of the heat plant of district energy systems

Ui Sik Kim Tae Chang Park Lae-Hyun Kim¹ Weon Ho Kim² Yeong Koo Yeo^†

Department of Chemical Engineering, Hanyang University, Seoul 133-791, Korea ¹Department of Chemical Engineering, Seoul National University of Technology, Seoul 135-743, Korea ²Infortrol, Inc., Yangchun-gu, Seoul 158-735, Korea

Korean Journal of Chemical Engineering, July 2009, 26(4), 955-962(8), 10.1007/s11814-009-0159-x

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Abstract

This paper presents a scheme to achieve structural and operational optimization for the heat plant in a district energy system. A district energy system consists of energy suppliers and consumers, district heating pipelines and heat storage facilities in a region. Production and consumption of energy and transport of energy as well as storage of heat are taken into account in the model. The problem is formulated as a mixed integer linear programming (MILP) problem where the objective is to minimize the overall cost of the district energy system. Evaluation of the energy production cost is based on the daily operation for every season at the plant located at Suseo in Seoul, Korea. From the results of numerical simulations we can see that the district energy system is well approximated by the proposed model, and that the energy efficiency is improved by the application of the optimal operation conditions provided by the proposed_x000D_ model.

Keywords

Mixed Integer Linear Programming District Energy System Optimal Operation Energy Efficiency

References

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