Compressor Power Calculator
Actual steady adiabatic ideal-gas compressor enthalpy-rise shaft power at independently matched cp; heat/kinetic changes excluded, not choose outlet temperature or rating. Actual independently established compatible SI units/model context; conditional arithmetic, not code compliance, engineering design or safe operation approval.
Description
A restricted adiabatic compressor balance uses mass flow, matched heat capacity and observed temperature rise.
A restricted adiabatic compressor balance uses mass flow, matched heat capacity and observed temperature rise.1
This tool calculates shaft-power demand under that model without selecting outlet temperature or a machine rating.
When to use Compressor Power Calculator
Use this tool to calculate shaft-power demand under that model without selecting outlet temperature or a machine rating.
How to use Compressor Power Calculator and how it works
- Prepare actualMassFlowKgPerSecond, callerCpJoulesPerKgKelvin, actualOutletTemperatureKelvin, actualInletTemperatureKelvin, with the units, conventions and assumptions below.
- Enter the required fields and run Compressor Power Calculator.
- Read result.value using the output definitions below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualMassFlowKgPerSecond | Actual Mass Flow Kg Per Second. Use the units and matching context stated in the calculation below. | number | Required; nonnegative; finite; other constraints below |
| callerCpJoulesPerKgKelvin | Caller Cp Joules Per Kg Kelvin. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
| actualOutletTemperatureKelvin | Actual Outlet Temperature Kelvin. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
| actualInletTemperatureKelvin | Actual Inlet Temperature Kelvin. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
Supply nonnegative mass flow in kilograms per second, positive specific heat in joules per kilogram-kelvin and positive inlet and outlet absolute temperatures in kelvin. Require outlet>=inlet and return massFlow*specificHeat*(outlet-inlet) in watts. Pressure ratio, efficiency and actual compressor behavior are not derived.
powerWatts=massFlow*specificHeat*(outletTemperature-inletTemperature) Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Conditional power in watts. | number |
{
"input": {
"actualMassFlowKgPerSecond": 2,
"callerCpJoulesPerKgKelvin": 5,
"actualOutletTemperatureKelvin": 302,
"actualInletTemperatureKelvin": 300
},
"output": {
"result": {
"value": 20
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Turbine Work Calculator for a complementary operation: Steady turbine power can be estimated from mass flow and a signed specific-enthalpy drop under a restricted energy balance.
Use Combined Cycle Efficiency Calculator for a complementary operation: An ideal combined-cycle balance depends on compatible top-cycle, recovery and bottom-cycle efficiency definitions.
References
-
Compressor Power Calculator — tool.io
Similar or alternative tools
- Turbine Work Calculator
Steady turbine power can be estimated from mass flow and a signed specific-enthalpy drop under a restricted energy balance.
- Combined Cycle Efficiency Calculator
An ideal combined-cycle balance depends on compatible top-cycle, recovery and bottom-cycle efficiency definitions.