STUDY OF FLOW PATH BLOCKAGE ACCIDENT AROUND A HOT FUEL ROD

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Gharari Rahman; Mataji Kojouri Naemaddin; Saffari Nushabadi Amir Hosein; NASIRI AHMAD

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Seminar Paper

Paper Information

Seminar: NATIONAL CONFERENCE ON POWER ENGINEERING AND NUCLEAR POWER PLANTS (PENPP)
Year:2016 | Issue:1

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Title

STUDY OF FLOW PATH BLOCKAGE ACCIDENT AROUND A HOT FUEL ROD

Author(s)

Gharari Rahman | Mataji Kojouri Naemaddin | Saffari Nushabadi Amir Hosein | NASIRI AHMAD | Issue Writer Certificate

Keywords

THERMAL HYDRAULIC ANALYSIS

FPBA

VVER-1000 REACTOR

COBRA-EN CODE

Abstract

A MAJOR GROUP OF ACCIDENTS RELATED TO THE VVER-1000 NUCLEAR REACTOR ARE THE EVENTS THAT LEAD TO THE REDUCTION OF HEAT REMOVAL FROM THE CORE. ONE OF THESE ACCIDENT S IS THE FLOW PASS BLOCKAGE ACCIDENT. FOR THE FIRST TIME, THERMAL HYDRAULIC ANALYSIS OF A TYPICAL VVER-1000 CORE DURING THE FLOW PATH BLOCKAGE ACCIDENT (FPBA) IS INVESTIGATED HEREIN. FOR THIS PURPOSE, IT IS ASSUMED THAT FPBA OCCURS AROUND THE HOT FUEL ROD (SUB CHANNEL ANALYSIS). THE ANALYSIS IS PERFORMED WITH THE MOST APPLIED COBRA-EN CODE. FURTHERMORE, CONNECTION AND DISCONNECTION OF THE OBSTRUCTED SUB CHANNEL WITH ITS ADJACENT SUB CHANNELS HAS BEEN INVESTIGATED. ACCORDING TO THE OBTAINED RESULTS, WHEN THE INTERACTION BETWEEN THE SUB CHANNELS IS CONSIDERED THERE IS STILL NO BOILING OCCURRENCE AND THE FUEL MAINTAINS ITS INTEGRITY, BUT REGARDLESS THE INTERACTION BETWEEN THE SUB CHANNELS BOILING OCCURS AND THE FUEL LOSSES ITS INTEGRITY AND THE REACTOR DOESN’T WORK IN THE SAFE MODE.

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APA: Copy

Gharari, Rahman, Mataji Kojouri, Naemaddin, Saffari Nushabadi, Amir Hosein, & NASIRI, AHMAD. (2016). STUDY OF FLOW PATH BLOCKAGE ACCIDENT AROUND A HOT FUEL ROD. NATIONAL CONFERENCE ON POWER ENGINEERING AND NUCLEAR POWER PLANTS (PENPP). SID. https://sid.ir/paper/922415/en

Vancouver: Copy

Gharari Rahman, Mataji Kojouri Naemaddin, Saffari Nushabadi Amir Hosein, NASIRI AHMAD. STUDY OF FLOW PATH BLOCKAGE ACCIDENT AROUND A HOT FUEL ROD. 2016. Available from: https://sid.ir/paper/922415/en

IEEE: Copy

Rahman Gharari, Naemaddin Mataji Kojouri, Amir Hosein Saffari Nushabadi, and AHMAD NASIRI, “STUDY OF FLOW PATH BLOCKAGE ACCIDENT AROUND A HOT FUEL ROD,” presented at the NATIONAL CONFERENCE ON POWER ENGINEERING AND NUCLEAR POWER PLANTS (PENPP). 2016, [Online]. Available: https://sid.ir/paper/922415/en

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