超临界水在管内传热特性研究进展  

Research Progress on Heat Transfer Characteristics of Supercritical Water in Tube

作　　者：唐旭 陈海峰[1] 陈忠[3] 徐愿坚[3] 刘晓玲[2] Tang Xu;Cheng Haifeng;Cheng Zhong;Xu Yuanjian;Liu Xiaoling(College of Mechanical and Electrical Engineering,Shaanxi University of Science&Technology,Xi’an 710021,China;Chongqing Academy of Chinese Materia Medica,Chongqing 400056,China;Chongqing Institute of Green and Intelligent Technology,Chinese Academy of Sciences,Chongqing 400714,China)

机构地区：[1]陕西科技大学机电工程学院,陕西西安710021 [2]重庆市中药研究院,重庆400065 [3]中国科学院重庆绿色智能技术研究院,重庆400714

出　　处：《山东化工》2020年第21期73-76,共4页Shandong Chemical Industry

基　　金：重庆市自然科学基金面上项目(cstc2019jcyj-msxmX0415)。

摘　　要：水以其大比热容特性被普遍选为火力发电和核反应堆的传热及冷却工质,但因其在超临界点附近物性的剧烈变化致使传热过程变得异常复杂,甚至出现传热恶化,制约了超临界水在工质传热方面的进一步发展。本文介绍了水在超临界点附近的物性变化特点,总结了超临界水在不同管内的流动及传热特性,分析了传热恶化的成因及应对策略,展望了未来的研究方向。Water is generally selected as the heat transfer and cooling medium for thermal power generation and nuclear reactors due to its large specific heat capacity characteristics.However,due to the drastic change of its physical properties near the supercritical point,the heat transfer process becomes extremely complicated and even deteriorates,which restricts the further development of supercritical water in the heat transfer of working medium.This paper introduces the characteristics of the physical properties of water near the supercritical point,summarizes the flow and heat transfer characteristics of supercritical water in different tubes,analyzes the causes of heat transfer deterioration and countermeasures,and looks forward to the future research direction.

关 键 词：超临界水 传热特性 传热恶化 超临界水冷式反应堆 

分 类 号：TK124[动力工程及工程热物理—工程热物理]