Latent heat storage in a two-phase thermosyphon solar water heater

被引：47

作者：

Lee, WS ^{[1
]}

Chen, BR

Chen, SL

机构：

[1] Natl Taipei Univ Technol, Dept Air Conditioning & Refrigerat Engn, Taipei 10673, Taiwan

[2] Natl Taiwan Univ, Dept Mech Engn, Taipei 10673, Taiwan

来源：

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME | 2006年 / 128卷 / 01期

关键词：

energy storage material; two-phase thermosyphon; solar water heater;

D O I：

10.1115/1.2147588

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This article experimentally studies the thermal performance of latent heat storage in a two-phase thermosyphon solar water heater; which utilizes the superior heat transfer characteristics of boiling and condensation, and eliminates drawbacks found in the conventional solar water heater Experimental investigations are first conducted to study the thermal behavior of tricosane (paraffin wax 116), water; and sodium acetate (NaCH3COO center dot 3H(2)O) used as energy storage materials. The results indicate that tricosane provides many advantages to be the energy storage material in the latent heat storage system. This study also examines the functions of charge and discharge thermal behaviors in a two-phase thermosyphon solar water heater. The results show that the system gives optimum charge and discharge performance under 40% alcohol fill ratio and with tricosane used as the energy, storage material, and displays an optimum charge efficiency of 73% and optimum discharge efficiency of 81%.

引用

页码：69 / 76

页数：8

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