Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Distribution of Hot Tap Water Load for District Heating Substation with Hot Tap Water 2-Stage Heat Exchanger

급탕 2단열교환방식 지역난방 열사용시설의 급탕부하 분배에 관한 연구

  • Received : 2011.01.03
  • Accepted : 2011.03.14
  • Published : 2011.04.10
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Abstract

According to the standards for district heating substation established by Korea District Heating Corporation, water heating supply systems at over 150 Mcal/h capacity must employ the 2-stage heat exchanger that improves the system efficiency by reusing the heat included in the return water of district heating system already used for space heating. In this paper, the operating characteristics of the system in accordance with the load distribution of two heat exchangers for pre-heating and re-heating cold city water are investigated. The results including mass flow rate, return temperature etc. help to manage district heating system economically.

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Acknowledgement

Supported by : 한국에너지기술평가원(KETEP)

References

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