Guidance

CHPQA appendix 3: Determination of useful heat output by direct use of gas turbine exhaust gases

Example considering a CHP Scheme with direct use of the exhaust from the gas turbine for a process drying duty.

• From: Department for Energy Security and Net Zero
• Published: 1 September 2021
• Last updated: 26 March 2026 — See all updates

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CHPQA appendix 3 example: Determination of useful heat output by direct use of gas turbine exhaust gases

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Details

This example considers a CHP Scheme with direct use of the exhaust from the gas turbine for a process drying duty.

All of the gas turbine (GT) exhaust gases are required for the operation of the dryer and some supplementary fuel is burnt in the gas duct before the dryer to achieve the desired process exit condition (moisture content).

Published 1 September 2021

Last updated 26 March 2026 + show all updates

1. 26 March 2026

   Updated 2026 to align with the CHPQA Portal now hosted on GOV.UK.

2. 1 September 2021

   First published.