New & Renewable Energy (신재생에너지)

Korean Society for New and Renewable Energy (한국신·재생에너지학회)
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A Study on the Reliability Assesment of Solar Photovoltaic and Thermal Collector System

태양광열 시스템의 신뢰성 평가에 관한 연구

  • Park, Tae-Kook (Nuclear Equipment Qualification & Safety Research Group, Korea Institute of Machinery and Materials) ;
  • Bae, Seung-Hoon (Nuclear Equipment Qualification & Safety Research Group, Korea Institute of Machinery and Materials) ;
  • Kim, Sang-Kyo (Nuclear Equipment Qualification & Safety Research Group, Korea Institute of Machinery and Materials) ;
  • Kim, Seon-Min (Nuclear Equipment Qualification & Safety Research Group, Korea Institute of Machinery and Materials) ;
  • Kim, Dae-Hwan (Nuclear Equipment Qualification & Safety Research Group, Korea Institute of Machinery and Materials) ;
  • Eom, Hak-Yong (Department of Reliability Assessment, Korea Institute of Machinery and Materials) ;
  • Lee, Keun-Hui (Janghan Engineers Inc.)
  • Received : 2020.09.08
  • Accepted : 2020.11.18
  • Published : 2020.12.25
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Abstract

Photovoltaic and Thermal collector (PV/T) systems are renewable energy devices that can produce electricity and heat energy simultaneously using solar panels and heat exchangers. Since PV/T systems are exposed to the outdoors, their reliability is affected by various environmental factors. This paper presents a reliability test for a PV/T system and evaluates the test results. The reliability assessment entails performance, environment, safety, and life tests. The factor that had the greatest influence on the life of the system was the hydraulic pressure applied to the heat exchanger. A test was conducted by repeatedly applying pressure to the PV/T system, and a reliability analysis was conducted based on the test results. As a result, the shape parameter (β) value of 5.6658 and the B10life 308,577 cycles at the lower 95% confidence interval were obtained.

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References

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