On the Unipos website, a refrigerant leakage refilling simulation program "REFLEAKPage was added.
In recent years, in consideration of the environmental impact of refrigerants with high global warming potential, the use of zeotropic mixed refrigerants, which are blends of two or more refrigerants, is increasing in heat pumps, air conditioning, and refrigeration systems.These mixed refrigerants undergo changes in temperature and composition during the processes of evaporation, condensation and flashing.Advanced simulation tools like REFLEAK are required to accurately predict changes and ensure system efficiency and safety.Simulating refrigerant mixture composition changes during leakage and refilling processes helps optimize operations and designs.
REFLEAK: What is the NIST Leak/Recharge Simulation Program for Refrigerant Blends?
NIST's REFLEAK is a Windows-based simulation model that simulates the process of leakage and refilling of zeotropic mixtures of refrigerants.It provides an easy-to-use tool for estimating compositional changes in mixtures during gas and liquid phase leaks and refills under isothermal or adiabatic conditions.
This program uses the thermal property database REFPROP (Version 10.0) of refrigerants and thermal fluids published by the National Institute of Standards and Technology (NIST).It is expected to be used in the industry because it can predict the composition change of zeotropic mixtures in industrial processes such as distillation, freezing, and washing with high accuracy.
Configuration of Leakage/Refilling Simulation Program
- Preprocessor: enter the required data
- Calculator: Simulate the leak and refill process
- Post-processing part: display calculation results and print/save data and graphs
Main functions
- Process selection: "leak only" and "leak/recharge"
- Temperature selection: "constant temperature leak" and "adiabatic leak"
- State selection: "gas phase leak" or "liquid phase leak"
- Choose from 71 refrigerants and up to 10 component blends plus 103 predefined blends
- Set initial conditions and up to 10 recharge options
- Display/Print: Graphical display of leak data, output can be saved and printed
- Other: Help menu and user guide included
Database name
NIST Leak/Recharge Simulation Program for Refrigerant Blends (REFLEAK)
NIST Standard Reference Database 73
REFLEAK is Version 6 (September 2023).
We also offer upgrade consultations.
Please refer to the following for the latest information.Please refer to the manufacturer page.
Main uses of REFLEAK
- Refrigeration Equipment Life Prediction
- Examination of optimal refrigerant composition
- Setting the refill frequency
- Leak detection system evaluation
- Formulation of maintenance plans, etc.
Keywords related to research
Air conditioner / Refrigerant / Vapor compression cycle / Azeotropic mixture / Azeotropic mixture / Refrigerant blend leak and refill simulation / Refrigeration cycle simulation / Recharge simulation program / Refrigerant mixture simulation / Efficiency prediction / Composition change prediction / System optimization / Maintenance plan Planning / Equipment diagnosis / Service life prediction / Refrigerant management / Risk assessment / Cost reduction
* Please let us know the NIST product name and product URL you want, not just this product.We will investigate and let you know.
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