The Workflow StackUseful calculations.
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Free tools for thermal, HVAC, and CAE work. Calculate in your browser, inspect the method, and download your results. No account required.
⇄General
Engineering unit converter
Convert temperature, pressure, mass flow, volume flow, power, and heat-transfer coefficients.
Open tool →QThermalHeat balance
Solve sensible heat rate, mass flow, or temperature change for a single stream.
Open tool →ΔTHVACHeat exchanger LMTD & UA
Evaluate terminal temperature differences and conductance for parallel or counterflow.
Open tool →RThermalThermal resistance network
Combine planar conduction layers and convection to estimate temperature rise.
Open tool →COPHVACHeat pump performance map
Interpolate measured heating capacity and power, then compare them with a design load.
Open tool →UAThermalHeat exchanger case comparison
Compare two operating cases using both stream energy balances, LMTD, UA, and pressure drop.
Open tool →✓CAESimulation validation checklist
Record model evidence and export a project-specific review checklist.
Open tool →Inputs are processed on your device. Results are not stored on our server.