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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Enhancement of Stratification for Solar Water Storage Tank with Spiral Jacket and Coil(Part 2 Simulation)

나선유로에 의한 태양열 축열조 성층화 촉진(제2보 시뮬레이션)

  • Lee, Seong Hoon (Graduate School, Department of Mechanical Engineering, Kyung Hee University) ;
  • Son, Hyo Seok (Graduate School, Department of Mechanical Engineering, Kyung Hee University) ;
  • Hong, Hiki (Department of Mechanical Engineering, Kyung Hee University)
  • 이성훈 (경희대학교 기계공학과 대학원) ;
  • 손효석 (경희대학교 기계공학과 대학원) ;
  • 홍희기 (경희대학교 기계공학과)
  • Received : 2013.08.08
  • Accepted : 2013.10.28
  • Published : 2014.01.10
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Abstract

We have performed experiments to enhance the stratification in a storage tank in order to raise the collector efficiency and solar fraction in solar thermal systems. The storage tank with a spiral jacket in the side wall has a scroll-shaped heat exchanger coil added to the upper part. The performance was compared between only the side and upper-side heating part through simulation using TRNSYS under the same weather conditions and initial conditions. As a result, the upper-side heating has a 4.2% advantage in solar fraction, but almost no increase in collector efficiency.

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References

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  2. Recent Progress in Air-Conditioning and Refrigeration Research: A Review of Papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2014 vol.27, pp.7, 2015, https://doi.org/10.6110/KJACR.2015.27.7.380