摘要
文章以混凝土作为储热介质,以导热油作为传热介质建立储热单元。模拟计算了不同入口流速、管径以及管间距对储热和放热的影响。研究结果表明,增加入口流速,增大管径和减小管间距均能够缩短充放热时间,加快储热单元的换热效率。其中,入口流速为2.0 m3/h、管径20 mm、管间距60 mm的储热单元充放热时间分别为38 min和35 min。
Using concrete as heat storage medium and oil as heat transfer fluid, a heat storage module was designed. Effect of inlet flow, tube diameter and tube pitch on heat charging and discharging process was numerically simulated. The results show that time of heat charging and discharging can be reduced by increasing inlet flow, increasing tube size or decreasing tube pitch, leading to improving the heat transfer rate. Moreover, when the inlet flow is 2.0 m3/h, tube size is 20 mm and tube pitch is 60 ram, the time of heat charging and discharging is 38min and 35 min, respectively.
出处
《广东化工》
CAS
2014年第17期24-26,共3页
Guangdong Chemical Industry
基金
武汉市科技攻关计划(201210321094)
关键词
储热
混凝土
导热油
模拟
heat storage： concrete： heat transfer oih simulation
