Simple mode estimates leak flow as a percentage of the entered
online compressor capacity. Replace the example values with
vessel-specific compressor and survey data.
Nm³/min
kW
% capacity
%
100% models proportional power. Higher values increase the
energy attributed to leak demand.
hours/day
days/year
%
$
Energy Cost Basis
$
/kWh
g/kWh
$
/MT
kg/kWh
Optional user-entered factor for the electricity or generation source.
Compressor Fleet
Only compressors marked Online are included in the blended
specific-power calculation. The model assumes leak demand is
supplied at the blended kW per Nm³/min of the online compressors.
Compressor
Rated Flow Nm³/min
Rated Power kW
Online
Leak Survey
Enter measured or independently estimated normalized airflow for
each leak or leak group. Quantity multiplies the entered flow per
leak. Active hours can differ by equipment or operating area.
Leak / Area
Qty
Flow Each Nm³/min
Active h/day
Recoverable %
Repair Cost
Operating & Cost Assumptions
days/year
%
$
/kWh
g/kWh
$
/MT
kg/kWh
Compressed Air Leak Results
Compressor-capacity leak estimate
Enter compressor data
Enter compressor capacity, power and leak assumptions to estimate
annual wasted energy, compressed-air loss and repair economics.
Annual Leak Energy Cost
N/A
Based on the selected electricity or generator-fuel cost method
Recoverable Annual Savings
N/A
Savings from the entered recoverable leak percentages
Peak Leak Flow
N/A
Online Compressor Capacity
N/A
Leak Share of Capacity
N/A
Blended Specific Power
N/A
Peak Leak Power
N/A
Annual Wasted Energy
N/A
Annual Leaked Air
N/A
Equivalent Generator Fuel
N/A
Modeled CO₂
N/A
Residual Annual Leak Cost
N/A
Repair Budget
N/A
Simple Payback
N/A
Cost per 1,000 Nm³ Lost
N/A
Energy Saved After Repair
N/A
Compressor Fleet
Advanced mode
Compressor
Rated Flow
Rated Power
Specific Power
Status
Leak Survey Results
Advanced mode
Leak / Area
Leak Flow
Annual Air Loss
Energy Waste
Annual Cost
Savings
Repair Cost
Payback
Leak Cost & Recovery
Compressor Energy Summary
Repair Economics
Annual Cost Sensitivity
Leak flow vs energy price
Leak Flow \ Energy Price
-20%
Base
+20%
Model approach:
blended compressor specific power equals total online compressor
input power divided by total online normalized airflow capacity.
Leak power equals leak airflow × blended specific power × the
entered compressor control factor. Annual wasted energy reflects
each leak's active hours. Generator-fuel equivalent equals wasted
kWh × the entered SFOC. Repair savings equal each leak's annual
energy cost × entered recoverable percentage. The model assumes
compressor energy falls with removed leak demand according to the
entered control factor.
Planning estimate only.
Actual compressed-air energy savings depend on compressor type,
pressure, control method, sequencing, unload power, variable-speed
performance, receiver volume, pressure setpoints, duty cycle,
compressor condition, air treatment losses and the location and
timing of individual leaks. Rated compressor flow and motor power may
not represent actual operating performance. Leak flow should be based
on measured or otherwise validated data where possible. Repair work
on pressurized systems should follow vessel procedures, isolation and
lockout requirements, manufacturer instructions and applicable safety
practices. This tool does not prescribe pressure settings or
maintenance procedures.
