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Horsepower per MMscfd Calculator

Quick Power Estimation for Budgetary Sizing

Quick Estimation
Rapidly estimate compressor horsepower requirements based on compression ratio and flow rate. Ideal for budgetary purposes and initial project scoping.

Operating Conditions

psia
psia
MMscfd
Standard conditions: 14.696 psia, 60ยฐF

Gas Properties

rel. to air
Natural gas: 0.55-0.80
-
-

Efficiency

%
Typical recip: 80-90%
ยฐF

HP per MMscfd Rule of Thumb

Ratio HP/MMscfd Application
1.5:118-25Low ratio boost
2:130-40Gathering
3:155-70Typical field
4:180-100High ratio
6:1+110-140Multi-stage

Estimation Notes

Budgetary Only: This quick method is for initial estimates. Use detailed sizing for final design.
Accuracy: ยฑ15-20% typical. Actual HP depends on cylinder selection and operating point.

Frequently Asked Questions

What is HP per MMscfd?

HP per MMscfd is a quick estimation of the horsepower required per million standard cubic feet per day of gas flow for a reciprocating compressor.

When is the HP per MMscfd method used?

This method is ideal for budgetary sizing and field estimates when detailed compressor performance data is not yet available.

What inputs does this calculator require?

It requires the compression ratio and gas gravity to estimate horsepower per MMscfd for reciprocating compressors.