REFLEAK: NIST Leak/Recharge Simulation Model for Refrigerant Blends Version 5.1; User's Guide

Published: November 19, 2018


Piotr A. Domanski, J S. Brown


As alternatives to refrigerants with a high global warming potential, blends of two or more refrigerants are being utilized as working fluids in heat-pump, air-conditioning, and refrigeration systems. Generally, these blends form zeotropes, which show temperature and composition changes during evaporation, condensation, or flashing process whether it be intended (i.e., through an expansion device) or unintended (e.g., a leak from a container or system). REFLEAK simulates leak and recharge processes for refrigerant zeotropic blends. This Windows- based simulation model provides an easy-to-use package that allows estimation of composition changes of zeotropic blends in leak and recharge processes for either vapor or liquid leaks under isothermal or adiabatic conditions.
Citation: Natl Std. Ref. Data Series (NIST NSRDS) - NSRDS 73-2018
Report Number:
NSRDS 73-2018
Pub Type: NIST Pubs


air conditioning, refrigerant, vapor-compression cycle, zeotropic blends, zeotropic mixtures
Created November 19, 2018, Updated November 19, 2018