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2021 Vol.15, Issue 6 Preview Page

Research Article

Performance Evaluation of Bypass Heating System to Improve Part Load Efficiency of Individual Room Control Heating System

실별제어 난방 시스템의 부분부하 효율 향상을 위한 바이패스 히팅 시스템 성능 평가

Kyu-Nam Rhee1
,
Jin-Hwan Song2
,
Seong-Ryong Ryu3*
이 규남1
,
송 진환2
,
류 성룡3*
1Associate Professor, Department of Architectural Engineering, Pukyong National University, Busan, Korea
2CEO, Alles Technology Co., Ltd., Ansan, Korea
3Associate Professor, Department of Architectural Engineering, Kumoh National Institute of Technology, Gumi, Korea
1부경대학교 건축공학과 부교수
2(주)알레스테크 대표이사
3금오공과대학교 건축공학과 부교수
*Corresponding Author
30 December 2021. pp. 735-746
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Abstract

In this study, a bypass heating system was suggested to improve the part load efficiency of individual room control for residential heating systems. TRNSYS simulation model for the suggested system was developed and heating energy consumption was analyzed to examine the practical applicability. The system was represented with 3-way valves, small circulation pump, and electric heater, which operates under part load condition that water temperature difference becomes less than 10℃. Simulation results showed that the heating energy consumption was reduced by 60% under the aforementioned part load condition. During the whole heating season, the bypass heating system operated for 342 hours, while the operation time of the boiler was reduced by 19.6%. Consequently, heating and pumping energy was reduced by 4.02% and 15.1%, respectively, which resulted in the overall energy saving by 4.12%.

Keywords
Apartment building
Individual room control
Part load
Individual boiler
Heating energy
키워드
공동주택
실별제어
부분부하
개별보일러
난방에너지
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Information
  • Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
  • Publisher(Ko) :한국건축친환경설비학회
  • Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
  • Journal Title(Ko) :한국건축친환경설비학회논문집
  • Volume : 15
  • No :6
  • Pages :735-746
  • Received Date : 2021-11-17
  • Revised Date : 2021-11-30
  • Accepted Date : 2021-11-30
  • DOI :https://doi.org/10.22696/jkiaebs.20210062
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