| 带环状翅片管式相变储热器的数值模拟 |
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| 引用本文： | 凌空,封永亮,陶文铨.带环状翅片管式相变储热器的数值模拟[J].工程热物理学报,2012(8):1407-1410. |
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| 作者姓名： | 凌空 封永亮 陶文铨 |
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| 作者单位： | 热流科学与工程教育部重点实验室,西安交通大学能源与动力工程学院 |
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| 基金项目： | 国家自然科学重点基金(No.51136004) |
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| 摘 要： | 相变材料的低导热性是相变储热器传热过程的主要障碍。在相变材料侧进行强化,是目前提升相变储热器蓄热速率的主要方法。本文采用有限容积法对带有环状翅片的管式相变储热器的蓄热过程进行了数值模拟,得到了温度场、相界面随时间的变化。在此基础上,本文对翅片导热系数、翅片厚度和翅片间距等影响储热速率的因素进行了计算和分析。为相变储热器的优化设计提供了一定的参考。
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| 关 键 词： | PCM 显热容法 数值模拟 强化换热 |
Numerical Simulation of Latent Heat Storage System With Circular-Finned Tube |
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| LING Kong,FENG Yong-Liang TAO Wen-Quan.Numerical Simulation of Latent Heat Storage System With Circular-Finned Tube[J].Journal of Engineering Thermophysics,2012(8):1407-1410. |
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| Authors: | LING Kong FENG Yong-Liang TAO Wen-Quan |
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| Institution: | (Key Laboratory of Thermo-Fluid Science and Engineering of MOE,Xi’an Jiaotong University,Xi’an 710049,China) |
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| Abstract: | The low thermal conductivity of phase change material(PCM) is the main resistance of heat transfer in latent storage system.Thus,reducing the thermal resistance in PCM side is the major way to increase the heat storage efficiency.This paper carries out a numerical simulation of latent heat storage with circular-finned tube using FVM and the evolution of temperature field and the solid-liquid interface are computed.Some analysis on the factors affecting the rate of heat storage and some basic considerations for the design of latent heat storage system are provided. |
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| Keywords: | PCM sensible heat capacity method numerical simulation heat transfer enhancement |
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