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Carbon Hub / Measures / Combustion-air preheating
Engineering assessment

Combustion-air preheating

Use exhaust heat to raise combustion-air temperature before the burner.

Start with site dataOpen the assessment tools
01

What the measure changes

Use exhaust heat to raise combustion-air temperature before the burner.

02

Evidence required

Exhaust and air flows, temperatures, fuel, burner limits, process duty, pressure loss and emissions constraints.

Inzonex removable modular insulation on industrial equipment
Equipment heat loss

Measure exposed hot surfaces

Use measured surface area, temperature and operating hours to calculate heat loss from boilers, kilns, heat exchangers, valves and pipework. Inzonex supplies removable modular insulation for equipment that requires maintenance access.

  • Design target: surface temperature at or below 45 °C, subject to the application and design review
  • Claimed heat-loss reduction: up to 96%, subject to the measured boundary and insulation specification
  • Removable construction for inspection and maintenance access
  • Calculation record available for the selected equipment and operating conditions

Do not add a calculated reduction to an emissions report until the reporting boundary, factor, implementation date and verification method have been approved.

03

Constraints and risks

Higher combustion-air temperature can affect nitrogen-oxide formation and burner safety.

04

Possible applications

Sector membership does not establish feasibility. Confirm the actual process duty.

Technical source

US Department of Energy process-heating resources

No standard saving, cost or payback is assigned. Calculate the result from the site baseline and retain the source data and review status.

Review: retain the site evidence, source date, calculation method and approval status. Published by Inzonex Research. Report an error.
Source: Inzonex Carbon Hub — inzonex.co.uk/carbon · prices dated as shown on each figure · schedule per Regulation (EU) 2023/956 · indicative analytics, not compliance advice.