自然条件下水冷捕获量的建模与验证  

Modeling and validation of water-cooled trapping under natural conditions

作　　者：孙铁柱 王祺 马杰 SUN Tiezhu;WANG Qi;MA Jie(School of Urban Planning and Municipal Engineering,Xi’an Polytechnic University,Xi’an 710048,China)

机构地区：[1]西安工程大学城市规划与市政工程学院,陕西西安710048

出　　处：《西安工程大学学报》2023年第1期38-45,共8页Journal of Xi’an Polytechnic University

基　　金：陕西省自然科学基础研究计划项目(2021JQ-689)。

摘　　要：针对在不同地区冬季冷捕获是否能储存冷量的问题,实现捕获冬季冷量储存到夏季使用的节能理念,对冷量捕获进行数学模型的建立和实验论证,分析稳态下和非稳态下的相变储冰机理。在陕西省榆林市冬季条件下,采用储冷介质水在3种不同气候温度区间下进行了冷捕获实验。实验结果显示,1、2、3、4、5 L量桶储冰总体积与理论计算结果分别为9.00%、6.25%、2.00%、1.82%、3.45%,5 L量桶加入太空冷辐射后,所得误差率为0.25%,冷捕获数学模型合理。在室外温度-3~5℃、-10~9℃、-18~2℃的3种区间波动时,低于0℃时间占测试时间分别为58.49%、61.11%和97.37%。证明在严寒地区和部分寒冷地区可快速捕获冷量,对季节性冰储冷空调系统具有良好的适用性。To address the question of whether cold capture can store cold in different regions in winter,and to realize the energy-saving concept of capturing winter cold storage for summer use,the mathematical modeling and experimental demonstration of the cold capture were carried out.To analyze of the mechanism of phase change ice storage under steady state and unsteady state.Cold capture experiments were conducted under winter conditions in Yulin,Shaanxi Province,using cold storage medium water in three different climate temperature intervals.The experimental results showed that the total volume of ice stored in 1,2,3,4,5 L measuring drums differed from the actual experimental results by 9.00%,6.25%,2.00%,1.82%,and 3.45%,respectively.The error rate obtained after adding cold radiation from space to a 5 L measuring drum is 0.25%.The mathematical model of cold storage is more reasonable.The experimental results also showed that the time below 0℃accounted for 58.49%,61.11%and 97.37%of the test time when the outdoor temperature fluctuated in three intervals of-3~5℃,-10~9℃and-18~2℃,respectively.The experiment proves that it can quickly capture cold in severe cold areas and some cold areas,and has good applicability to seasonal ice storage and cooling air conditioning systems.

关 键 词：季节性冰储冷 相变热传递 冷捕获 空调节能 相变储能 

分 类 号：TK02[动力工程及工程热物理]