LNG-水微通道换热器性能仿真研究  

Simulation Study on LNG-water Microchannel Heat Exchanger Performance

作　　者：韩芳明 魏天洋 李炳锐 王维[2] HAN Fang-ming;WEI Tian-yang;LI Bing-rui;WANG Wei(Aerospace Haiying(Harbin)Titanium Co.,Ltd.,Harbin 150001,China;School of Energy Science and Technology,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]航天海鹰钛业(哈尔滨)有限公司,黑龙江哈尔滨150001 [2]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001

出　　处：《节能技术》2024年第3期204-207,共4页Energy Conservation Technology

基　　金：黑龙江省“百千万”工程科技重大专项(2020ZX10A03);黑龙江省自然科学基金联合引导项目(LH2022E064)。

摘　　要：作为一种干净的化石能源,液化天然气(LNG)可被当作燃料广泛地用于发电、工业加热、船舶动力等工程应用中,但在使用前往往需要预先通过可靠的换热装置对其进行加热。为了探究针对LNG的一种基于微通道的高效换热技术的可靠性,本研究通过数值模拟方法对LNG与高温热水在微通道内部的换热性能进行了仿真研究。结果表明,在四种不同工况条件下,该微通道换热器的总换热系数最高可达到1993.4 W/(m^(2)·K),换热有效度最高可达0.92。As a clean fossil energy source,liquefied natural gas(LNG)can be widely used as a fuel in engineering applications such as power generation,industrial heating,ship power,etc.,but it often needs to be preheated by a reliable heat exchanger before use.In order to investigate the reliability of a microchannel-based high-efficiency heat transfer technology for LNG,this study simulates the heat transfer performance between LNG and high-temperature hot water inside the microchannel by numerical simulation.The results show that the total heat transfer coefficient of the microchannel heat exchanger can reach up to 1993.4 W/(m^(2)·K)and the heat transfer efficiency can reach up to 0.92 under four different working conditions.

关 键 词：液化天然气 微通道换热器 数值模拟 温度分布 

分 类 号：TH49[机械工程—机械制造及自动化]