Experimental and fundamental investigations of boiling heat transfer at conditions up to the critical point

临界点条件下沸腾传热的实验和基础研究

• 批准号: 349988-2006
• 负责人: Gu, Junjie
• 金额: $ 0.95万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=459171
• 关键词: Experimental; fundamental; investigations; boiling; heat

This proposal is intended to carry out thermalhydraulics studies related to atomic energy power generation. The research will relate to the working fluid water at high temperature, which is close to its critical point (221.2 bar, 374.15 C). The fundamental knowledge generated from this research would be directly beneficial to Canadian power-generation and potentially useful to chemical, and oil-gas industries. Short-term applications of the research focus on providing support to the nuclear reactor industry for designing of new reactor types and improving the safety of existing reactors in Ontario, Quebec and New Brunswick. The research utilizes mainly Refrigerant-134a, which is one of the environmentally safe refrigerants, as coolant to simulate the high-pressure steam-water flow. The use of refrigerants provides a safer testing environment (lower operating pressure 40.7 bar and temperature 101.11 C), simpler testing requirements, more flexibility, and lower cost than steam-water flow. Research topics cover flow boiling and pressure drop, particularly the impact of various separate effects on thermalhydraulics parameters in simple geometries and bundles. At this point, little related educational programs or suitable research facilities are available in Canada for this type of fundamental knowledge. One of the secondary objectives of the proposed research program is to construct an experimental facility to conduct these analyses, and to undertake a systematic evaluation of analytical methods and models, in support of the Canadian industries (e.g., CANDU reactors, AECL). The results will also enrich the literature, with potential application in many different areas of science and engineering. This proposed program will employ researchers and train graduates, providing them with advanced, hands-on experience in nuclear power research, an area that is extremely vital for the Canadian economy.

这项建议旨在开展与原子能发电相关的热工水力学研究。这项研究将涉及接近其临界点(221.2巴，374.15摄氏度)的高温工质水。这项研究产生的基本知识将直接有益于加拿大的发电，并可能对化工和石油天然气行业有用。这项研究的短期应用侧重于为核反应堆工业提供支持，以设计新的反应堆类型并提高安大略省、魁北克省和新不伦瑞克省现有反应堆的安全性。本研究主要利用环保型制冷剂-134a作为冷却剂，模拟高压汽水两相流动。与蒸汽-水流动相比，制冷剂的使用提供了更安全的测试环境(较低的工作压力40.7bar和101.11℃)、更简单的测试要求、更大的灵活性和更低的成本。研究主题包括流动沸腾和压降，特别是简单几何形状和捆绑的各种分离效应对热工水力参数的影响。在这一点上，加拿大几乎没有相关的教育计划或合适的研究设施来教授这类基础知识。拟议研究计划的次要目标之一是建立一个实验设施来进行这些分析，并对分析方法和模型进行系统评估，以支持加拿大的工业(例如，CANDU反应堆，AECL)。这些结果还将丰富文献，在许多不同的科学和工程领域具有潜在的应用前景。这个拟议的项目将雇用研究人员并培训毕业生，为他们提供核电研究方面的先进实践经验，这是一个对加拿大经济极其重要的领域。