熔盐单罐双盘管释热换热器布置方式优选

孔庆龙; 鹿院卫; 于强; 张灿灿; 吴玉庭

doi:10.19912/j.0254-0096.tynxb.2020-1388

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太阳能学报 ›› 2022, Vol. 43 ›› Issue (8) : 209-215. DOI: 10.19912/j.0254-0096.tynxb.2020-1388

熔盐单罐双盘管释热换热器布置方式优选

孔庆龙, 鹿院卫, 于强, 张灿灿, 吴玉庭

作者信息 +

OPTIMUM LAYOUT OF MOLTEN SALT SINGLE TANK DOUBLE COIL HEAT RELEASING HEAT EXCHANGER

Kong Qinglong, Lu Yuanwei, Yu Qiang, Zhang Cancan, Wu Yuting

Author information +

文章历史 +

摘要

为了获得单罐内盘管换热器最佳的布置方式,利用数值计算的方法研究相同换热器面积不同盘管换热器布置方式对单罐蓄热系统释热性能的影响规律。结果表明,叉排双螺旋盘管换热器的释热性能优于单排盘管换热器,且内盘管高外盘管低（hi=90 mm,ho=174 mm）的布置方式换热器其释热功率、出口温度以及累计释热量最大。

Abstract

The molten salt single-tank thermal storage heating system is a low-cost clean energy heating mode that realizes heat storage by built-in electric heaters and heat release by built-in coil heat exchangers. The built-in coil heat exchanger area of this system increases with the increase of heating load, which leads to the arrangement of the coil heat exchanger directly affects the heat release performance of the single tank heat storage system. In order to obtain the best arrangement of coil heat exchanger in a single tank, this paper investigates the effect of different coil heat exchanger arrangements with the same heat exchanger area on the heat release performance of the single tank heat storage system by using numerical calculation method. The results show that the heat release performance of the staggered double spiral coil heat exchanger is better than that of the single row coil heat exchanger, and the capacity, discharge temperature and accumulated heat release are the largest for the arrangement with high inner coil and low outer coil （h_i=90 mm, h_o=174 mm）. The results of this paper provide a theoretical basis for the design of heat exchanger with electrically heating molten salt single tank heat storage.

导出引用

孔庆龙, 鹿院卫, 于强, 张灿灿, 吴玉庭. 熔盐单罐双盘管释热换热器布置方式优选[J]. 太阳能学报. 2022, 43(8): 209-215 https://doi.org/10.19912/j.0254-0096.tynxb.2020-1388

Kong Qinglong, Lu Yuanwei, Yu Qiang, Zhang Cancan, Wu Yuting. OPTIMUM LAYOUT OF MOLTEN SALT SINGLE TANK DOUBLE COIL HEAT RELEASING HEAT EXCHANGER[J]. Acta Energiae Solaris Sinica. 2022, 43(8): 209-215 https://doi.org/10.19912/j.0254-0096.tynxb.2020-1388

中图分类号： TK12

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