skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: RELAP4/MOD5: a computer program for transient thermal-hydraulic analysis of nuclear reactors and related systems. User's manual. Volume I. RELAP4/MOD5 description. [BWR; PWR]

Technical Report ·
OSTI ID:7252062

A detailed description is presented of the RELAP4/MOD5 computer program. RELAP4 is written in FORTRAN IV for analysis of nuclear reactors and related systems. It is primarily applied in the study of system transient response to postulated perturbations such as coolant loop rupture, circulation pump failure, power excursions, etc. The program was written to be used for water cooled (PWR and BWR) reactors and can be used for scale models such as LOFT and SEMISCALE. Additional versatility extends its usefulness to related applications, such as ice condenser and containment subcompartment analysis. Specific options are available for reflood (FLOOD) analysis and for the Evaluation Model.

Research Organization:
Idaho National Engineering Lab., Idaho Falls (USA)
DOE Contract Number:
E(10-1)-1375
OSTI ID:
7252062
Report Number(s):
TID-27136/1; TRN: 77-000164
Country of Publication:
United States
Language:
English