LNG管道内气液相变流动传热理论的研究现状及趋势

Research Status and Development Trend of Gas-Liquid Phase Change Heat Transfer Theory in LNG Pipeline

针对液化天然气管道内流动传热理论的研究现状及趋势进行相关调研,结果表明管道内液化天然气的相变问题十分严峻,严重影响着管道的运输能力和运输安全性。为缓解这些问题的发生,主要从液化天然气的管道运输特点、液化天然气相变机理与特性以及液化天然气流型与传热三个方面进行分析比较,指出了存在的问题以及未来的发展前景,对液化天然气管道内相变流动传热的研究提供理论基础。

The research status and development trend of gas-liquid phase change heat transfer theory in LNG pipeline were discussed. The results show that the phase change problem of LNG in pipeline has become more and more serious. What＆#39;s more, it affects the capacity and security of pipeline transportation. In order to alleviate these problems, characteristics of LNG pipeline transportation, phase change mechanism and characteristics of LNG, flow types and heat transfer of LNG were analyzed and compared. In the end, the existing problems and future development prospects were put forward. The article can provide theoretical basis for the research of phase change heat transfer in LNG pipeline.