EMERGENCY BATTERY CHARGING APPARATUS FOR NUCLEAR POWER PLANT BY USING THERMOELECTRIC GENERATING ELEMENT

• Main Authors: SHIM HYOUNG GUN, YU BYEONG TAE, KIM JUN-SEONG, CHOI SUNG MIN, CHUN SEOUNG EUN, PARK SANG JUNG, YOON TAE YOUNG, LEE GEOL WOO, LEE SANG JONG, KIM HYE JIN
• Format: Patent
• Language: English
• Published: 28.03.2013
• Subjects: NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR POWER PLANT; NUCLEAR REACTORS; PHYSICS

PROBLEM TO BE SOLVED: To provide an apparatus for charging, using heat generated in a nuclear reactor, an emergency battery which supplies a power for retaining a cooling function of an emergency core cooling apparatus, when a power shutdown accident to a nuclear power plant occurs, an emergency diesel generator breaks down or the like, and it becomes impossible to smoothly supply the power to the emergency core cooling apparatus for cooling the core in the nuclear reactor.SOLUTION: The emergency battery charging apparatus for supplying an emergency power to the emergency core cooling apparatus including an electric pump or a steam pump comprises: a thermoelectric generating element that detects decay heat or residual heat generated in a nuclear power plant and converts the detected heat into an electric energy; an electric energy conversion part that is connected to the thermoelectric generating element for outputting a current generated by the thermoelectric generating element at a constant voltage; and an emergency battery for storing a power supply output from the conversion part.