Compressed Air Leak Orifice SCFM Loss & Annual Compressor Electricity Cost Calculator

Quantify SCFM air loss and annual wasted electricity ($) from compressed air leaks.

Annual Wasted Electricity Cost per Leak
4,269.54 USD/yr
Choked-Flow Air Leak Rate 28.24 SCFM
Continuous Compressor Power Wasted 5.08 kW
Annual Wasted Energy 30,496.72 kWh/yr
Inputs
⚡ Scenarios:
inches
Equivalent leak hole diameter in inches (e.g., 0.0625 = 1/16", 0.125 = 1/8", 0.25 = 1/4").
PSIG
Compressed air header gauge pressure (PSIG).
hrs/yr
Annual compressor operating hours.
USD/kWh
Industrial electricity rate per kWh.
Results & Graph
Annual Wasted Electricity Cost per Leak
4,269.54 USD/yr
Choked-Flow Air Leak Rate
28.24 SCFM
Continuous Compressor Power Wasted
5.08 kW
Annual Wasted Energy
30,496.72 kWh/yr

Annual Wasted Electricity Cost per Leak

Graph 1 • Compressed Air Leak Cost • Domain Architecture & Live Telemetry Maps Leak Orifice Diameter In, Line Gauge Pressure Psig, Plant Operating Hours Yr through Compressed Air Leak Cost Formula.
INPUT PARAMETERS • Leak Orifice Diame: 0.125 inches • Line Gauge Pressur: 100 PSIG • Plant Operating Ho: 6000 hrs/yr ∑ F(x) Compressed Air Leak Cost DESIGN OUTPUT 4,269.54 USD/yr Choked-Flow Air Leak Rat: 28.24 SCFM Continuous Compressor Po: 5.08 kW
Graph 2 • Annual Wasted Electricity Cost per Leak Across Leak Orifice Diameter In Sweep (40% → 160%) Evaluates Leak_SCFM ≈ 24.24 × (PSIG + 14.7) × OrificeDia_in²; AnnualCost = Leak_ across 7 operating points (current input highlighted).
0 USD/yr 6.0k USD/yr 12.0k USD/yr 683.1 0.0500 1.5k 0.0750 2.7k 0.100 4.3k 0.125 6.1k 0.150 8.4k 0.175 10.9k 0.200
Graph 3 • Joint Sensitivity: Leak Orifice Diameter In × Line Gauge Pressure Psig Compares Annual Wasted Electricity Cost per Leak when Line Gauge Pressure Psig is shifted +25% (solid) vs. −25% (dashed).
0 USD/yr 4.8k USD/yr 9.7k USD/yr --- Line Gauge Pressure Psig @ 75% 2.5k -30% 3.8k -15% 5.2k +0% 6.9k +15% 8.8k +30%
Summary: A 0.125" orifice leak at 100 PSIG wastes 28.2 SCFM (5.08 kW continuous compressor load), costing $4270/year over 6,000 operating hours.
Summary: A 0.125" orifice leak at 100 PSIG wastes 28.2 SCFM (5.08 kW continuous compressor load), costing $4270/year over 6,000 operating hours.
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Formula & Mathematical Methodology: Compressed Air Leak Cost Formula

LeakSCFM ≈ 24.24 × (PSIG + 14.7) × OrificeDiain²
AnnualCost = LeakSCFM × kWperCFM × Hours × $/kWh
Leak_SCFM ≈ 24.24 × (PSIG + 14.7) × OrificeDia_in²; AnnualCost = Leak_SCFM × kW_per_CFM × Hours × $/kWh
  • leakOrificeDiameterIn: Leak Orifice Diameter In (inches)
  • lineGaugePressurePsig: Line Gauge Pressure Psig (PSIG)
  • plantOperatingHoursYr: Plant Operating Hours Yr (hrs/yr)
  • electricityRatePerKwh: Electricity Rate Per Kwh (USD/kWh)

Rounding: Engineering outputs round to 2–3 decimal places; discrete material bag/unit counts round up via ceiling.

Worked Example: Engineering Scenario: Compressed Air Leak Cost

Quantify SCFM air loss and annual wasted electricity ($) from compressed air leaks.

  1. Enter your system dimensions, electrical/RF ratings, or environmental conditions.
  2. Evaluate the governing equation: Leak_SCFM ≈ 24.24 × (PSIG + 14.7) × OrificeDia_in²; AnnualCost = Leak_SCFM × kW_per_CFM × Hours × $/kWh.
  3. Inspect the primary design output, supporting allowances, and 3 SVG schematics.
Result: Computes Compressed Air Leak Cost via Leak_SCFM ≈ 24.24 × (PSIG + 14.7) × OrificeDia_in²; AnnualCost = Leak_SCFM × kW_per_CFM × Hours × $/kWh.

Frequently Asked Questions

How does the Compressed Air Leak Orifice SCFM Loss & Annual Compressor Electricity Cost Calculator calculate results?

It evaluates Leak_SCFM ≈ 24.24 × (PSIG + 14.7) × OrificeDia_in²; AnnualCost = Leak_SCFM × kW_per_CFM × Hours × $/kWh directly in your browser and updates three custom SVG visualizations in real time.

Can I use Goal Seek to solve backwards for a required dimension or rating?

Yes. Click "🎯 Goal Seek" in the results toolbar to solve backwards for any numeric input parameter.

Does this engineering calculator work offline?

Yes. All calculations run 100% locally in your browser and work offline via the CalculatorGraph PWA.

Science & Engineering · Thermodynamics & HVAC Systems

Compressed Air Leak Orifice SCFM Loss & Annual Compressor Electricity Cost Calculator: inputs, method, and how to read the result

Quantify SCFM air loss and annual wasted electricity ($) from compressed air leaks.

Choose inputs for the case you are checking

The defaults are illustrative. Replace them with values for your case and keep the units shown beside each field.

  • Leak Orifice Diameter In: Equivalent leak hole diameter in inches (e.g., 0.0625 = 1/16", 0.125 = 1/8", 0.25 = 1/4").
  • Line Gauge Pressure Psig: Compressed air header gauge pressure (PSIG).
  • Plant Operating Hours Yr: Annual compressor operating hours.
  • Electricity Rate Per Kwh: Industrial electricity rate per kWh.

What the calculation includes

With the default values shown, Annual Wasted Electricity Cost per Leak is 4,269.54 USD/yr. The calculation follows Compressed Air Leak Cost Formula; the formula and variable definitions above show how the inputs combine.

One-input check: With the other defaults held constant, changing Leak Orifice Diameter In from 0.125 inches to 0.135 inches changes Annual Wasted Electricity Cost per Leak from 4,269.54 USD/yr to 4,979.99 USD/yr. This is a comparison inside the calculator's stated model, not a prediction.

Where to use caution

  • Uses standard NREL, IEEE, ASHRAE, and IRC design equations.
  • Verify final structural, electrical, and mechanical specifications against local building codes.

Scope: Global Engineering & Building Code Standard Check the assumptions and limitations against your situation before relying on the estimate.

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