ThermoLab brings refrigerant property calculations and refrigeration cycle analysis to your phone. Built for HVAC/R engineers, technicians and thermodynamics students, it helps you explore operating conditions and compare calculated results.
REFRIGERANT PROPERTIES
Select a fluid and two state inputs to calculate temperature, pressure, density, enthalpy, entropy and other available properties. Switch between SI and IP units and choose a reference state.
SATURATION TABLES
Generate a temperature or pressure sweep with separate liquid and vapor properties. Review bubble and dew conditions for mixtures and export the table as CSV.
CYCLE DESIGN
Explore single-stage and supported two- or three-stage refrigeration cycles. Set evaporating and condensing temperatures, superheat, subcooling, capacity and compressor efficiency. View calculated COP, compressor power, mass flow, discharge temperature and a P-h diagram. Supported modes include economizer and intercooling options.
COMPARE AND EXPORT
Save calculation cases on your device, compare them and export a PDF report. Explore a two-refrigerant drop-in comparison and see how assumptions affect the result.
OPERATING-POINT SCREENING
Run an evaporating-temperature sweep and inspect sampled conditions against the app's stated screening thresholds. This is an illustrative engineering calculation, not a certified operating envelope or safety assessment.
FOUR INTERFACE LANGUAGES
English, Korean, Japanese and Simplified Chinese. Some technical table labels, server messages and PDF report text are in English.
BEFORE YOU USE IT
An internet connection is required for calculations. Supported fluids, states and cycle modes depend on the calculation model; transcritical CO2 cycles are not supported. Results are estimates for analysis and education, and do not replace manufacturer data, equipment selection, applicable standards or professional review. A refrigerant comparison does not establish retrofit suitability, material compatibility or legal approval.
Free to use, with an occasional app-opening ad. No account required. Saved cases remain on your device unless you export or share them.
Support: kimbimine@gmail.com
Privacy policy: https://designfab-thermolab-privacy.arcane-mug-8612.chatgpt.site
Refrigerant properties, saturation tables and refrigeration cycle calculations.