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http://dx.doi.org/10.5855/ENERGY.2017.26.3.090

Power Generation and Control System Using Differential Pressure of District Heating Pipeline in a Substation  

Kim, Kyung Min (Frontier Research Institute, Korea District Heating Corp.)
Park, Sung Yong (Frontier Research Institute, Korea District Heating Corp.)
Oh, Mun Sei (Frontier Research Institute, Korea District Heating Corp.)
Publication Information
Journal of Energy Engineering / v.26, no.3, 2017 , pp. 90-96 More about this Journal
Abstract
When the hot water is supplied through the district heating (DH) pipeline, a pressure differential control valve (PDCV) protects the DH user equipment from the high pressure DH water and helps to supply DH water to long distance. It also controls the temperature and adjust the pressure in the main district heating pipeline. However, cavitation occurs in PDCV due to the use of high pressure DH water. It causes frequent failures and many problems. It also causes energy loss and complaints to both operators and users. In order to solve these problems, we will introduce the energy saving technology to replace the primary side PDCV with hydraulic turbine, convert the differential pressure into electricity, and utilize electricity as the power of the secondary side pump.
Keywords
District Heating; District Heating Pipeline; Differential Pressure; Hydraulic Turbine; Control System;
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  • Reference
1 Ahn, Y. M., et al., 2016, New climate change regime & DHC in Korea, E-square, pp. 15-25
2 Johansson, P-. O., 2011, Buildings and district heating, Lund University, Ph. D. Dissertation (in Denmark)
3 Lee, G. T., et al., 2010, Micro power generation system in mass residence area and method therefore, Patent No. 10-1200550 (in Korea)
4 Chae, K-. J., et al., 2013, Micro-hydropower system with a semi-kaplan turbine for sewage treatment plant application: Kiheung respia case study (in Korean), JKSEE, Vol. 35, No. 5, pp. 363-370
5 Na, D. H., et al., 2010, Feasibility study on the construction of small hydro-power plants at the discharge point of Gumi sewage treatment plant, Kumoh National Institute of Technology, Ph. D. Dissertation (in Korean)