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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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CFD Analysis for Spiral-Jacketed Thermal Storage Tank in Solar Heating Systems

태양열 시스템에 적용된 나선재킷형 축열조의 CFD 해석

  • Nam, Jin-Hyun (School of Mechanical and Automotive Engineering, Kookmin University) ;
  • Kim, Min-Cheol (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Kim, Charn-Jung (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Hong, Hi-Ki (Department of Mechanical Engineering, KyungHee University)
  • 남진현 (국민대학교 기계자동차공학부) ;
  • 김민철 (서울대학교 기계항공공학부) ;
  • 김찬중 (서울대학교 기계항공공학부) ;
  • 홍희기 (경희대학교 기계산업시스템공학부)
  • Published : 2008.10.10
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Abstract

Spiral-jacketed thermal storage tanks can greatly simplify solar heating systems while maintaining the thermal performance at a similar level as conventional systems with an external heat exchanger. Proper design of the spiral-jacket flow path is essential to make the most of solar energy, and thus to maximize the thermal performance. In the present work, computational fluid dynamics (CFD) analysis was carried out for a spiral-jacketed storage tank installed in a solar heating demonstration system. The results of the CFD analysis showed a good agreement with experimentally determined thermal performance indices such as the acquired heat, collector efficiency, and mixed temperature in the storage tank. This verified CFD modelling approach can be a useful design tool in optimizing the shape of spiral-jacket flow path and the flow rate of circulating fluid for better performance.

Keywords

References

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