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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Performance of Crystalline Si Solar Cells with Temperature Controlled by a Thermoelectric Module

열전소자 온도조절법을 이용한 결정형 실리콘 태양전지의 성능 측정

  • Heo, Kimoo (Department of Mechanical Engineering, Graduate School of Hanyang University) ;
  • Lee, Daeho (Department of Mechanical Engineering, Gachon University) ;
  • Lee, Jae-Heon (Department of Mechanical Engineering, Hanyang University)
  • 허기무 (한양대학교 대학원 기계공학과) ;
  • 이대호 (가천대학교 공과대학 기계공학과) ;
  • 이재헌 (한양대학교 공과대학 기계공학부)
  • Received : 2015.04.27
  • Accepted : 2015.06.08
  • Published : 2015.07.10
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Abstract

A proper estimate of solar cell efficiency is of great importance for the feasibility analysis of solar cell power plant development. Since solar cell efficiency depends on temperature, several methods have been introduced to measure it by operating temperature modulation. However, the methods either rely on the external environment or need expensive equipment. In this paper, a thermoelectric module was used to control the operating temperature of crystalline silicon solar cells effectively and precisely over a wide range. The output characteristics of crystalline silicon solar cells in response to operating temperatures from $-5^{\circ}C$ to $100^{\circ}C$ were investigated experimentally. Their efficiencies decreased as the temperature rose, since the decrease in the open circuit voltage and fill factor exceeded the increase in the short circuit current. The maximum power temperature coefficient of the single crystalline solar cell was more sensitive to temperature change than that of the polycrystalline solar cell.

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