Energy and costs
Practical explanations, observation points and project questions, from separation principles to maintenance and measurement.
Comparing energy per cubic metre of delivered gas
The electricity boundary and product-gas denominator must match.
Turning an air-leak survey into a verified energy project
Document repairable findings and measure their effect under comparable operation.
Checks to complete before reducing supply pressure
Reduce excess pressure only after establishing the critical user's needs.
Why rated efficiency does not describe low-load operation
Evaluate the hours spent away from the nominal operating point.
Matching the air compressor to the gas generator
Capacity, pressure and control response all need to fit.
Establishing a baseline before a gas-station efficiency project
A fair comparison needs the conditions that explain energy use.
Costs that an on-site nitrogen estimate can miss
Build the estimate around useful gas delivered over the operating year.
Comparing cylinders, liquid supply and on-site generation
Use the same usable quality, delivery pressure and annual demand.
When compressor heat recovery belongs in a gas-project benefit case
A useful heat sink is essential to a credible recovery estimate.
Including desiccant-dryer regeneration in the energy comparison
Regeneration can consume compressed air, heat or both.
Separate rejected gas, sample flow and leaks in the gas balance
Different loss categories need different corrective actions.
What a useful gas-station energy dashboard should retain
Combine energy figures with the conditions that explain them.
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