LNG-水微通道换热器性能仿真研究
Simulation Study on LNG-water Microchannel Heat Exchanger Performance
韩芳明 1魏天洋 2李炳锐 2王维2
作者信息
- 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
- 折叠
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1 993.4 W/(m2·K),换热有效度最高可达0.92.
Abstract
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 micro-channel-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 simula-tion.The results show that the total heat transfer coefficient of the microchannel heat exchanger can reach up to 1 993.4 W/(m2·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Key words
liquefied natural gas/microchannel heat exchanger/numerical simulation/temperature dis-tribution引用本文复制引用
基金项目
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)
出版年
2024
NETL
NSTL
万方数据