相变储能材料系统典型数值模拟研究现状与进展  

State-of-the-art development of numerical simulations of phase change materials based systems

作　　者：刘鹏 顾晓滨 秦善[2] LIU Peng;GU Xiaobin;QIN Shan(College of Gems and Materials Technology,Hebei GEO University,Shijiazhuang 050031,Hebei,China;School of Earth and Space Sciences,Peking University,Beijing 100871,China)

机构地区：[1]河北地质大学宝石与材料工艺学院,河北石家庄050031 [2]北京大学地球与空间科学学院,北京100871

出　　处：《储能科学与技术》2018年第2期67-77,共11页Energy Storage Science and Technology

基　　金：河北省自然科学基金项目(D2016403064);河北省科技支撑计划项目(17214016);四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地开放基金(17kffk13);河北地质大学博士基金(BQ2017020;BQ201702021)

摘　　要：相变储能材料是近年来热能储存领域研究的热点,绝大多数相变储能材料系统的相变过程是高度非线性变化的,难以求得解析解。本文分别介绍了基于Ansys-Fluent、Ansys、PCMexpress软件在建筑节能等不同领域对相变储能材料非线性相变过程进行数值分析和研究的发展现状,并展望了PCM数值分析的发展方向。首先通过综述指出了数值分析在PCM系统研究和应用中处理非线性相变问题的独特优势,这为PCM系统研究及应用过程中处理热量传递中瞬态相变及模拟工程应用提供了有效手段。随后对比分析了Fluent、Ansys、PCMexpress的模拟研究应用情况、各自特点,指出了其中存在的模型建立、初始条件、可靠性等问题。最后结合相变储能材料发展中存在封装及无机PCM系统过冷、相分离的问题,指出了PCM系统数值分析可能朝着建立合理模型、验证模拟结果、改进数值模拟软件、与实际问题结合、拓展应用领域等方向发展,以及其在PCM系统研究和应用中具有的广阔前景。Phase change materials(PCM)have become one of the hottest topics in the field of thermal energy storage in recent years.However,phase transition processes of most PCM based systems are highly nonlinear,leading to difficulties in solving the problem analytically.Numerical analysis provides a powerful tool to solve such non-linear problems including heat and momentum transfer.This paper gives a state-of-the-art summary of numerical simulation work on the use of Ansys-Fluent,Ansys and PCMexpress software packages in solving phase change materials based energy storage systems in different applications such as buildings.A comparison is made between these different sofatware packages and issues related model establishment,initial conditions and reliability were identified.Moreover,taking account of PCM encapsulation,inorganic PCM supercoiling and phase separation,the development direction of PCM system numerical analysis such as establishing a reasonable model,verifying the simulation results,improving the simulation algorithm,coupling practical conditions and expanding application Fields are also investigated,combining with application and the characteristics of different software packages.

关 键 词：FLUENT PCMexpress ANSYS 数值模拟 相变储能材料 应用分析 

分 类 号：TB34[一般工业技术—材料科学与工程]