| 纪玮， 刘伟军.石蜡相变储能装置的熔化传热数值模拟[J].轻工机械,2022,40(2):27-33 |
| 石蜡相变储能装置的熔化传热数值模拟 |
| Numerical Simulation of Melting Heat Transfer of Paraffin Phase Change Energy Storage Device |
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| DOI：10.3969/j.issn.1005 2895.2022.02.005 |
| 中文关键词: 蓄热储能 相变材料 熔化传热 偏心率 |
| 英文关键词:heat storage phase change material melting heat transfer eccentricity |
| 基金项目: |
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| 中文摘要: |
| 为了探究石蜡在管壳式相变储能装置传热过程的影响因素，笔者对水平放置的管壳式储能装置中石蜡的熔化过程进行了数值模拟。研究了加热源表面温度和截面偏心率变化对熔化过程产生的影响。设置不同的加热源温度和截面偏心率进行模拟，对熔化过程的液相率曲线、液相率云图和温度云图的变化进行分析。结果表明：提高加热源表面的温度会使熔化时间缩短，但在达到一定温度后，熔化时间的变化不大；增大模型偏心率会缩短熔化时间，在研究模型中，偏心率为1.0时熔化时间最短。文中数值模拟方法可为管壳式相变储能装置的设计提供参考。 |
| 英文摘要: |
| In order to study the factors affecting the heat transfer process of paraffin in a shell and tube phase change energy storage device, the melting process of paraffin in a horizontally placed shell and tube energy storage device was numerically simulated. The influence of changing heating source temperature and cross section eccentricity on melting process was studied. Different heat source temperature and the cross section eccentricity were set for simulation, the liquid rate curve, liquid rate satellite cloud picture and temperature change of melting process were analyzed. The results show that raising the temperature of heat source can make the melting time shortened, but after reaching a certain temperature, melting time changed little; increasing the eccentricity of the model will shorten the melting time. In the studied model, the melting time is the shortest when the eccentricity is 1.0. The proposed numerical simulation method can provide reference for the design of shell and tube phase change energy storage device. |
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