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2021 Vol.15, Issue 2 Preview Page

Research Article

Investigation of the Effects of Sensor Fault on the Performance of Solar Hot Water Systems

센서 고장에 따른 태양열 급탕 시스템 성능 분석

Seung-Hyo Baek1*
백 승효1*
1Assistant Professor, Division of Architecture, Mokwon University, Daejeon, Korea
1목원대학교 건축학부 조교수
*Corresponding Author
30 April 2021. pp. 166-177
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Abstract

The application of Solar Hot Water (SHW) systems is essential for implementing zero-energy buildings. Various faults in these systems, however, can cause performance degradation, which has led some HVAC engineers or building facility managers to avoid applying such systems. In particular, detection of sensor faults is more difficult than detection of other types of faults. Accordingly, the present study investigates the effects of sensor faults on the performance of SHW systems. Negative and positive biases are artificially injected into the system, and the performance of fault-free and faulty conditions are compared by TRNSYS 17. The simulation results demonstrate that negative bias causes a decrease in solar heat gain in the system. In addition, it is found that the system is operated more intermittently in a negative bias condition and more continuously in a positive bias condition. This finding can be effectively used to propose fault detection and diagnosis in SHW systems.

Keywords
Renewable energy system
Solar hot water system
Fault detection & diagnosis
Sensor fault
키워드
신재생 에너지 시스템
태양열 급탕 시스템
고장 검출 진단
온도 센서 고장
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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 :2
  • Pages :166-177
  • Received Date : 2021-01-25
  • Revised Date : 2021-03-12
  • Accepted Date : 2021-03-16
  • DOI :https://doi.org/10.22696/jkiaebs.20210014
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