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http://dx.doi.org/10.3795/KSME-B.2013.37.4.331

Computational Fluid Dynamics Model for Solar Thermal Storage Tanks with Helical Jacket Heater and Upper Spiral Coil Heater  

Baek, Seung Man (Sch. of Mechanical and Aerospace Eng., Seoul Nat'l Univ.)
Zhong, Yiming (Sch. of Mechanical and Automotive Eng., Daegu Univ.)
Nam, Jin Hyun (Sch. of Mechanical and Automotive Eng., Daegu Univ.)
Chung, Jae Dong (Sch. of Mechanical and Aerospace Eng., Sejong Univ.)
Hong, Hiki (Dept. of Mechanical Eng., Kyung Hee Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.4, 2013 , pp. 331-341 More about this Journal
Abstract
In a solar domestic hot water (SDHW) system, solar energy is collected using collector panels, transferred to a circulating heat transfer fluid (brine), and eventually stored in a thermal storage tank (TST) as hot water. In this study, a computational fluid dynamics (CFD) model was developed to predict the solar thermal energy storage in a hybrid-type TST equipped with a helical jacket heater (mantle heat exchanger) and an immersed spiral coil heater. The helical jacket heater, which is the brine flow path attached to the side wall of a TST, has advantages including simple system design, low brine flow rate, and enhanced thermal stratification. In addition, the spiral coil heater further enhances the thermal performance and thermal stratification of the TST. The developed model was validated by the good agreement between the CFD results and the experimental results performed with the hybrid-type TST in SDHW settings.
Keywords
Solar Domestic Hot Water System; Thermal Storage Tank; Computational Fluid Dynamics; Helical Jacket Heater; Thermal Storage Efficiency; Thermal Stratification;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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