Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Evaluation on Calculation Algorithms for Polycrystalline Silicon PV Module Surface Temperatures by Varying External Factors during the Summer Period

다결정 실리콘 PV모듈의 하절기 표면온도 예측을 위한 알고리즘 검토 및 외부인자별 영향 평가

  • 정동은 (한밭대학교 건축설비공학과) ;
  • 염규환 (한밭대학교 건축설비공학과) ;
  • 이찬욱 (한밭대학교 건축설비공학과) ;
  • 도성록 (한밭대학교 설비공학과)
  • Received : 2019.04.29
  • Accepted : 2019.08.13
  • Published : 2019.08.30
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Abstract

Recently, electric power usages and peak loads from buildings are increasing due to higher outdoor air temperatures and/or abnormal climate during the summer period. As one of the eco-friendly measures, a renewable energy system has been received much attention. Particularly, interest on a photovoltaic (PV) system using solar energy has been rapidly increasing in a building sector due to its broad applicability. In using the PV system, one of important factors is the PV efficiency. The normal PV efficiency is determined based on the STC(Standard Test Condition) and the NOCT(Nominal Operating Cell Temperature) performance test. However, the actual PV efficiency is affected by the temperature change at the module surface. Especially, higher module temperatures generally reduce the PV efficiency, and it leads to less power generation from the PV system. Therefore, the analysis of the relation between the module temperature and PV efficiency is required to evaluate the PV performance during the summer period. This study investigates existing algorithms for calculating module surface temperatures and analyzes resultant errors with the algorithms by comparing the measured module temperatures.

Keywords

Acknowledgement

Supported by : 한국연구재단

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