高温供冷相变蓄冷材料的制备及蓄冷性能

上海交通大学学报（自然版） ›› 2013, Vol. 47 ›› Issue (08): 1275-1281.

高温供冷相变蓄冷材料的制备及蓄冷性能

王晓霖，翟晓强，王恬，席丽霞

(上海交通大学机械与动力工程学院，上海 200240)

收稿日期:2012-07-05 出版日期:2013-08-29 发布日期:2013-08-29
基金资助:
国家自然科学基金资助项目（51276114）

Preparation and Performance of Cold Storage Phase Change Material for High Temperature Cooling Application

WANG Xiaolin,ZHAI Xiaoqiang,WANG Tian,XI Lixia

(School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2012-07-05 Online:2013-08-29 Published:2013-08-29

摘要/Abstract

摘要：

对高温供冷用相变蓄冷材料进行配制，并对其热物性及蓄\释冷性能进行分析.分析测试了癸酸月桂酸二元体系的低共熔点，以及不同种类添加剂的摩尔分数对体系相变特性的影响.建立蓄冷球模型，对蓄\释冷过程中材料温度、蓄\释冷量、蓄\释冷速率的变化规律进行分析；使用自制相变材料灌装蓄冷球，进行蓄冷、释冷性能实验.结果表明：以摩尔比例70∶30的癸酸、月桂酸混合物为基液，摩尔分数0.08的油酸为添加剂，制备出蓄冷材料的相变温度约15 ℃，相变潜热为114.1 kJ/kg，蓄冷球蓄冷、释冷过程稳定，单球蓄冷总量为17.67 kJ，能够满足高温供冷空调系统的蓄冷需求.

关键词: 高温供冷, 癸酸月桂酸, 相变蓄冷, 蓄冷球模型

Abstract:

A cold storage phase change material was prepared for high temperature cooling application. Its thermophysical properties and charging/discharging performance were investigated. The eutectic point and the influence of mole fraction of different additives on phase change characteristics of the capriclauric system were tested. The mathematical model of a package ball was built, through which the variation of temperature, storage capacity and storage rate were analyzed. Experiments were conducted to study the charging/discharging performance of the package ball. The results show that the capric-lauric acid combination (mole proportion is 70∶30) adding oleic (mole fraction is 0.08) is considered to be well suited to high temperature cooling application with a phase change temperature of 15 ℃ and a latent heat of 114.1 kJ/kg. The charging and discharging processes are stable with a storage capacity of 17.67 kJ for each ball.

Key words: high temperature cooling application, capriclauric acid, phase change cold storage, model of cold storage ball

中图分类号:

TB 64

王晓霖，翟晓强，王恬，席丽霞. 高温供冷相变蓄冷材料的制备及蓄冷性能[J]. 上海交通大学学报（自然版）, 2013, 47(08): 1275-1281.

WANG Xiaolin,ZHAI Xiaoqiang,WANG Tian,XI Lixia. Preparation and Performance of Cold Storage Phase Change Material for High Temperature Cooling Application[J]. Journal of Shanghai Jiaotong University, 2013, 47(08): 1275-1281.

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