SPENT FUEL COOL BY HEAT PIPES FOR NUCLEAR POWER REACTOR
In 2011, a natural disaster of earthquakes and tsunamis had caused a serious nuclear reactor meltdown in Fukushima, Japan.The problem was loss of electrical power to run the cooling system for the nuclear reactor in case of emergency nuclear reactor shutdown, and cooling of spent fuel.In this paper, authors present a detail description of a completely passive cooling system using heat pipe for cooling of the spent fuel.The nuclear power plant No.4 at Fukushima was chosen for this study is a Boiling Water Reactor (BWR) type Mark I.The spent fuel bundle is submersed in a water pool where cooling temperature is kept at a certain level by running water cooling system driven by electrical power.Authors proposed a system of completely passive cooling system using heat pipes and air natural convection cooling without any use of electrical power.The thermal design specification for Fukushima No.4 reactor are-thermal power 2,381 MW;electrical power 784 MW;658 spent fuel bundles (39,456 spent fuel rods);spent fuel water pool volume 1,400 tonnes.Detail analysis of various heat pipe design cases to determine the best design concept in terms of cooling power, construction and cost has been presented.The best design when considering thermal safety margin and cost is the heat pipe cooling 0.9 MW;1,662 heat pipe modules;water temperature will reach to peak 68 ℃ after 75 hours, and will be saturated at 50 ℃ after 2,000 hours.The estimated cost for complete heat pipe cooling system is about 2.16 Millions USD.
Boiling water reactor Pressurized water reactor Fast breeder reactor Nuclear power Spent fuel Heat pipe Loop heat pipe
Masataka Mochizuki Thang Nguyen Koichi Mashiko Yuji Saito Randeep Singh Tien Nguyen Vijit Wuttijumnong
Fujikura Ltd.,R&D Department, Thermal Technology Division,1-5-1, Kiba, Koto-Ku, Tokyo 135-8512, Japan
国际会议
The 11th International Heat Pipe Symposium(第十一届国际热管研讨会)
北京
英文
48-53
2013-06-09（万方平台首次上网日期，不代表论文的发表时间）