化工学报 ›› 2019, Vol. 70 ›› Issue (9): 3346-3352.DOI: 10.11949/0438-1157.20190401
收稿日期:
2019-04-17
修回日期:
2019-05-21
出版日期:
2019-09-05
发布日期:
2019-09-05
通讯作者:
周国兵
作者简介:
王慧丽(1996—),女,硕士研究生,基金资助:
Received:
2019-04-17
Revised:
2019-05-21
Online:
2019-09-05
Published:
2019-09-05
Contact:
Guobing ZHOU
摘要:
利用半导体制冷局部低温诱发稳定过冷的三水醋酸钠溶液凝固,实验研究不同含水量、样品质量、输入功率等条件下过冷溶液结晶诱导期及释热特性。结果表明:随样品含水量增加,整体呈现结晶诱导期增加,释热温度下降的趋势,含水量44%作为较理想的体系配比,结晶诱导期为2 min,稳定放热温度达52.8℃;诱发过程中制冷装置输入功率越大,容器壁面降温越快,较容易触发,功率为280 W的结晶诱导期是功率为70 W的 1/3;样品质量越大,结晶诱导期越短,稳定放热温度相对较高,放热时间趋长。实验结果为稳定过冷水合盐局部低温诱发凝固释能系统设计提供依据。
中图分类号:
王慧丽, 周国兵. 局部低温诱发过冷三水醋酸钠释能特性实验研究[J]. 化工学报, 2019, 70(9): 3346-3352.
Huili WANG, Guobing ZHOU. Experimental investigation on discharging characteristics of supercooled sodium acetate trihydrate induced by local cooling[J]. CIESC Journal, 2019, 70(9): 3346-3352.
图8 不同输入功率下壁面温度及平均诱导时间变化
Fig.8 Time dependent wall temperature of unit and average induction time of samples with different input powers of semiconductors
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