基于恒定螺距螺旋盘管蓄热装置并进行装置改进,设计出渐变式螺旋盘管蓄热装置,并探究盘管内换热流体（HTF）在不同迪恩数（De）、入口温度下的PCM放热性能。研究表明：入口温度一定时,De增大会缩短放热时间,且在不同入口温度下渐变式螺距放热时间较恒定螺距缩短,从而提高放热效率。
Abstract
Based on the constant pitch spiral coil heat storage device and its improvement, a gradual spiral coil heat storage device is designed, and the PCM heat release performance of HTF in the coil under different Dean’s number（De） and inlet temperature is investigated.Studies have demonstrated that when inlet temperature are constant,an increase in De shortens the heat release time, and the heat release time of the gradual pitch at different inlet temperatures is shorter than that of the constant pitch, suggesting the improvement in the heat release efficiency.
关键词
太阳能 /
相变蓄热 /
强化传热 /
太阳能利用率 /
蓄热装置
Key words
solar energy /
phase change heat storage /
enhanced heat transfer /
solar energy utilization rate /
thermal storage device
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 刘艳峰, 曹彦宾, 王登甲, 等. 基于网格寻优算法的太阳能供暖系统匹配优化[J]. 太阳能学报, 2021, 42(4): 286-292.
LIU Y F, CAO Y B, WANG D J, et al.Matching optimization of solar heating system based on grid optimization algorithm[J]. Acta energiae solaris sinica, 2021, 42(4): 286-292.
[2] 王兵振, 张原飞, 程绪宇. 南极中山站30 kW光伏发电系统工作特性研究[J]. 太阳能学报, 2021, 42(4): 272-277.
WANG B Z, ZHANG Y F, CHENG X U.Study on characteristics of 30 kW PV system in Zhongshan Station, Antarctica[J]. Acta energiae solaris sinica, 2021, 42(4): 272-277.
[3] 王海新, 沈建新, 徐建国. 基于新型智能算法对太阳能无人机光伏组件电压预测控制研究[J]. 太阳能学报, 2021, 42(4): 175-180.
WANG H X, SHEN J X, XU J G.Study on voltage prediction of UVA based on new intelligent algorithm[J]. Acta energiae solaris sinica, 2021, 42(4): 175-180.
[4] 吴娟, 龙新峰. 太阳能热化学储能研究进展[J]. 化工进展, 2014, 33(12): 3238-3245.
WU J, LONG X F.Research progress of solar thermochemical energy storage[J]. Chemical industry and engineering progress, 2014, 33(12): 3238-3245.
[5] 李培涛, 田瑞, 辛浩, 等. 圆柱形等距螺旋盘管式相变蓄热装置蓄热性能研究[J]. 可再生能源, 2019, 37(3): 463-468.
LI P T, TIAN R, XIN H, et al.Study on heat storage performance of spiral coil phase change thermal storage device[J]. Renewable energy resources, 2019, 37(3): 463-468.
[6] 宗弘盛, 杨兆晟, 张群力, 等. 梯级相变蓄热装置蓄放热性能模拟研究[J]. 可再生能源, 2021, 39(5): 618-625.
ZONG H S, YANG Z S, ZHANG Q L, et al.Numerical simulation on the thermal performance of the cascade stage latent thermal storage system with the various phase change material[J]. Renewable energy resources, 2021, 39(5): 618-625.
[7] 洪鼎华, 刘士琦, 陶汉中. 矩形腔相变蓄热装置蓄热性能的数值模拟及优化[J]. 可再生能源, 2018, 36(5): 690-695.
HONG D H, LIU S Q, TAO H Z.Numerical simulation and optimization of heat transfer characteristics of rectangular cavity phase change heat storage[J]. Renewable energy resources,2018, 36(5): 690-695.
[8] KHOBRAGADE S, DEVANURI J K.Energy and exergy analyses of simultaneous charging and discharging latent heat storage system at different inclination angles-an experimental study[J]. Journal of energy resources technology, 2021, 1-22.
[9] LI J Q, YU TU R, LIU M D, et al.Exergy analysis of a novel multi-stage latent heat storage device based on uniformity of temperature differences fields[J]. Energy, 2021, 221(1): 119-884.
[10] 胡志培, 孙志高, 孟二林. 水平管壳式相变蓄热装置的强化传热研究[J]. 太阳能学报, 2021, 42(3): 450-455.
HU Z P, SUN Z G, MENG E L.Study on heat transfer enhancement of horizontal shell-and-tube latent heat thermal energy storage unit[J]. Acta energiae solaris sinica, 2021, 42(3): 450-455.
基金
内蒙自治区科技创新引导奖励资金项目（KCBJ2018031; 2017CXYD-2）
PDF(1961 KB)
