태양열 에너지 저장탱크에서의 충진제 특성 및 HTF 유입속도에 따른 열유동 해석
Analysis of Thermal Fluid Flow in the Solar Thermal Energy Storage Tank Depending on the Filler Material Characteristics and HTF Inlet Velocity
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초록
A 2D axisymmetric numerical analysis was performed to study the characteristics of charge process insidesolar thermal storage tank. The porosity and heat transfer coefficient of filler material as well as inlet velocityof heat transfer fluid are selected as simulation parameters. The porosity is varied as 0.2, 0.5, and 0.8 toaccount for the effect of filler granule geometry. Two levels of the heat transfer coefficient is adopted toassess the heat transfer between heat transfer fluid and filler material. The inlet velocity is varied as 0.00278,0.0278, and 0.278m/s. As both of the porosity and the heat transfer coefficient increase, the discrepancy of thetemperature distributions between the filler and heat transfer fluid decreases. As the inlet velocity increases, thepenetration depth of the heat transfer fluid increases proportionally.
Abstract
A 2D axisymmetric numerical analysis was performed to study the characteristics of charge process insidesolar thermal storage tank. The porosity and heat transfer coefficient of filler material as well as inlet velocityof heat transfer fluid are selected as simulation parameters. The porosity is varied as 0.2, 0.5, and 0.8 toaccount for the effect of filler granule geometry. Two levels of the heat transfer coefficient is adopted toassess the heat transfer between heat transfer fluid and filler material. The inlet velocity is varied as 0.00278,0.0278, and 0.278m/s. As both of the porosity and the heat transfer coefficient increase, the discrepancy of thetemperature distributions between the filler and heat transfer fluid decreases. As the inlet velocity increases, thepenetration depth of the heat transfer fluid increases proportionally.
참고문헌 (12)
- G. J. Kolb, "Insights from the Operation of Solar One and Their Implications for Future Central Receiver Plants", Journal of Solar Energy, 47(1), pp.39~47 (1991)
- D. R. Mills, "Compact Linear Fresnel Reflector Solar Thermal Power Plants", Journal of Solar Energy, 68(3), pp.263~283 (2000)
- U. Herrmann, "Survey of Thermal Energy Storage for Parabolic Trough Power Plants", Journal of Solar Energy Engineering, 124(2), pp.145~152 (2002)
- K. Lovegrove, "Developing Ammonia Based Thermochemical Energy Storage for Dish Power Plants", Journal of Solar Energy, 76(1-3), pp.331~337 (2004)
- D. Kearney, "Assessment of a Molten Salt Heat Transfer Fluid in a Parabolic Trough Solar Field", Journal of Solar Energy Engineering, 125(2), pp.170~176 (2003)
- Z. Yang, "Thermal Analysis of Solar Thermal Energy Storage in a Molten-salt Thermocline", Journal of Solar Energy, 84(6), pp.974~985 (2010)
- Z. Yang, "Molten-salt Thermal Energy Storage in Thermocline under Different Environmental Boundary Conditions", Journal of Applied Energy, 87(11), pp.3322~3329 (2010)
- S. M. Flueckiger, "Second-law Analysis of Molten-salt Thermal Energy Storage in Thermoclines", Journal of Solar Energy, 86(5), pp.974~985 (2012)
- 조재혁, "태양열 에너지 저장탱크에서의 충진제 특성에 따른 열유동 해석", 한국기계기술학회지, 15(6), pp.955~959 (2013), 한국기계기술학회
- ANSYS Inc, "ANSYS FLUENT User`s Guide Release 13.0", ~ (2010)
- 조재혁, "기공률, 상대습도, 전기전도도 변화에 따른 고분자 전해질 연료전지 성능해석", 한국기계기술학회지, 15(1), pp.103~108 (2013), 한국기계기술학회
- 조재혁, "작동압력, 작동온도 변화에 따른 고분자 전해질 연료전지 성능해석", 한국기계기술학회지, 15(2), pp.247~253 (2013), 한국기계기술학회