scholarly journals RELAP5 thermal-hydraulic analysis of the SNUPPS (Standardized Nuclear Unit Power Plant System) pressurized water reactor

1990 ◽  
Author(s):  
C Kullberg
Keyword(s):  
Power Plant ◽  
Pressurized Water Reactor ◽  
Hydraulic Analysis ◽  
Pressurized Water ◽  
Water Reactor ◽  
Plant System ◽  
Unit Power ◽  
Thermal Hydraulic Analysis

scholarly journals A RELAP5 model for the thermal-hydraulic analysis of a typical pressurized water reactor

2010 ◽  
Vol 14 (1) ◽  
pp. 79-88 ◽  
Author(s):  
Said Agamy ◽  
Adul Metwally ◽  
Mohammad Al-Ramady ◽  
Sayed Elaraby
Keyword(s):  
Power Plants ◽  
Natural Circulation ◽  
Reactor Core ◽  
Cooling Water ◽  
Pressurized Water Reactor ◽  
Hydraulic Analysis ◽  
Pressurized Water ◽  
Water Reactor ◽  
Operator Action ◽  
Thermal Hydraulic Analysis

This study describes a RELAP5 computer code for thermal-hydraulic analysis of a typical pressurized water reactor. RELAP5 is used to calculate the thermal hydraulic characteristics of the reactor core and the primary loop under steady-state and hypothetical accidents conditions. New designs of nuclear power plants are directed to increase safety by many methods like reducing the dependence on active parts (such as safety pumps, fans, and diesel generators ) and replacing them with passive features (such as gravity draining of cooling water from tanks, and natural circulation of water and air). In this work, high and medium pressure injection pumps are replaced by passive injection components. Different break sizes in cold leg pipe are simulated to analyze to what degree the plant is safe (without any operator action) by using only these passive components. Also station blackout accident is simulated and the time response of operator action has been discussed.

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