Quick Answer
Calculate Reciprocating Compressor Volumetric Efficiency with Clearance Volume Loss
Calculator
Result Interpretation
Reciprocating Compressor Volumetric Efficiency with Clearance Volume Loss Calculator computes Volumetric Efficiency in dimensionless using the defined engineering formula and the input values provided.
Worked Example
Verified calculation
Given:
- Clearance Ratio = 0.045
- Suction Pressure = 250000
- Discharge Pressure = 1200000
- Polytropic Exponent = 1.28
Expected Result:
- Volumetric Efficiency = 0.89173879688922
Engineering Interpretation:
Under the given input conditions, the calculated result is: Volumetric Efficiency = 0.89173879688922 dimensionless.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
volumetric efficiency = 1.0 - clearance ratio * (pow(discharge pressure / suction pressure, 1.0 / polytropic exponent) - 1.0)Formula family: formula_refrigeration_reciprocating_compressor_volumetric_efficiency_clearance_loss_estimator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| suction_pressure | Suction Pressure | INPUT | Suction Pressure |
| discharge_pressure | Discharge Pressure | INPUT | Discharge Pressure |
| clearance_ratio | Clearance Ratio | INPUT | Clearance Ratio |
| polytropic_exponent | Polytropic Exponent | INPUT | Polytropic Exponent |
| volumetric_efficiency | Volumetric Efficiency | OUTPUT | Volumetric Efficiency |
Calculation Steps
- Enter the suction pressure in Pa.
- Enter the discharge pressure in Pa.
- Enter the clearance ratio in dimensionless.
- Enter the polytropic exponent in dimensionless.
- Step 1: Compute volumetric efficiency.
- Read the volumetric efficiency (dimensionless) from the results.
Engineering Summary
Calculate Reciprocating Compressor Volumetric Efficiency with Clearance Volume Loss
Frequently Asked Questions
What does this calculator calculate?
The Reciprocating Compressor Volumetric Efficiency with Clearance Volume Loss Calculator estimates Volumetric Efficiency based on the input parameters you provide
Why is suction pressure important in this calculation?
suction pressure is directly proportional to volumetric efficiency. When you enter suction pressure in Pa, the calculator uses it in the engineering formula to compute the output
How should I interpret the result volumetric efficiency?
The calculator outputs volumetric efficiency in dimensionless. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Suction Pressure (Pa), Discharge Pressure (Pa), Clearance Ratio (dimensionless), Polytropic Exponent (dimensionless). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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