- Project plans
- Project activities
- Legislation and standards
- Industry context
- Specialist wikis
Last edited 07 Mar 2022
The term ‘calorific value’ (CV) is a measure of heating power, and refers to the amount of energy released when a fuel is completely combusted under specific conditions. For solid and liquid fuels this is measured at constant volume and for gaseous fuels it is measured at constant pressure.
- The Net Calorific Value considers that the combustion products contain water of combustion to the vapour state, and so the heat energy in the water is not recovered.
- The Gross Calorific Value considers that the water of combustion is condensed, and so the heat energy in the water is recovered.
NB Embodied Carbon, The Inventory of Carbon and Energy (ICE), By Prof. Geoffrey Hammond and Craig Jones, Ed. Fiona Lowrie and Peter Tse, published by BSRIA in 2011, defines the Calorific Value (CV) of energy as: ‘The energy content of a fuel (as may be released through combustion). It may be expressed as a gross calorific value (GCV) or net calorific value (NCV). The former is always larger than (or equal to) the latter. The difference is due to latent heat (energy) remaining in condensation (water vapour) after combustion. The difference is typically 5-10 per cent (e.g. 10 per cent for natural gas, 5 per cent for coal).’
Featured articles and news
A brief description of time in the sun.
Given by ICE President Ed McCann.
Two new research reports published by APM.
50% off APM Associate membership for Designing Buildings users.
A commentary from the insurance perspective.
In brief with further links.
A definitive book on a pioneer of green architecture.
Using heritage as a catalyst for reviving historic centres.
Declaration prioritising sustainable urbanisation adopted.
Some brief words about the actuator.
After 34 years at the Institute.
To support the next generation of engineers.
CIAT reporting from the Competition and Markets Authority.
Making sustainable construction number one priority.
Interview with ECA CEO.
Many provisions came into force on June 28, 2022.
With room to expand.
Refurbishment, Energy Efficiency, Indoor air and process.
Aluminium Composite Panels (ACP) is one example.
Write about something you know, help us build and grow !