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GALE Overview

The Gaseous and Liquid Effluents (GALE) series of codes consists of four codes that calculate the gaseous and liquid effluent releases from pressurized-water reactors (PWRs) and boiling-water reactors (BWRs). These are:
  • pressurized-water reactor liquid effluent (PWRLE)
  • pressurized-water reactor gaseous effluent (PWRGE)
  • boiling-water reactor liquid effluent (BWRLE)
  • boiling-water reactor gaseous effluent (BWRGE)
This Fortran-based code uses a combination of input data and hardwired parameters to calculate the source term of radionuclides generated by a nuclear power plant during routine operation. Parameters that vary from plant to plant are treated as “inputs”; GALE asks the operator for input values on each run. Hardwired parameters are plant characteristics that are assumed to be the same for all reactors. GALE is maintained at the Pacific Northwest National Laboratory (PNNL) under contract for the U.S. NRC Office of Research.
GALE-3.0 - Is the most recent version of the of the GALE code which allows greater user flexibility to select the specific version of the reactor coolant source term and the GALE code fixed modeling parameters used by the code. The update to the GALE 3.0 source code does not involve changes in the model formulations, the revised source code had exactly the same functionality as the GALE-86 versions with the only differences being the addition of a GUI containing options for the reactor coolant source terms and GALE code fixed modeling parameters. In GALE 3.0 the user can select one of three ANSI/ANS-18.1 versions (1984, 1999, & 2016) and one of two GALE code fixed modeling parameters (GALE-86 or GALE-09). Finally the user can also choose to modify certain GALE code fixed modeling parameters outside the choices above by using a text file which the GALE-3.0 will read.


In GALE-3.0, the values for the reactor coolant source term and GALE fixed modeling parameters are defaulted to the ANSI/ANS-18.1-1984 source term values and the GALE-86 code fixed modeling parameters. For domestic and international applicants submitting a new reactor application for NRC review and approval, the default GALE 3.0 setting (GALE86 and ANSI/ANS-18.1-198) are consistent with the guidance in DC/COL-ISG-05, “Interim Staff Guidance on the use of the GALE86 Code for Calculation of Routine Radioactive Releases in Gaseous and Liquid Effluents from Boiling-Water Reactors and Pressurized-Water Reactors to Support Design Certification and Combined License Applications.”
BW Once-through Steam Generator
BWR Gaseous Radwaste Treatment Screen
BWR General Reactor Parameters Screen
BWR Liquid Radwaste Treatment Screen
BWR Schematic
CE U-tube Steam Generator
Clean Waste Screen
Equipment Drain Waste Screen
Fixed Parameter Text File
GALE Excel Spread Sheet
GALE-BWR 3.0 Title Screen
GALE-PWR 3.0 Title Screen
Liquid Processing System Flow Stream
Miscellaneous Dirty Waste Screen
PWR General Reactor Parameters Screen
PWR Schematic
Waste Collection Time and Processing and Discharge Time Calculation Screen
Westinghouse U-tube Steam Generator
GALE 3.0 Working Directory
NUREG-0017 0Revision Charcoal Efficiency Information
PWR Gaseous Radwaste Treatment Screen
PWR Liquid Radwaste Treatment Screen
RG 1_140 Revision 3 Charcoal Efficiency Information
Steam-Air Ejector