- Calorific value
- Heat content per unit quantity of fuel. Gross calorific value (GCV, also known as higher heating value) accounts
for total energy content. Net calorific value (NCV, or lower heating value) excludes energy which will be dissipated
as latent heat in water vapour in products of combustion. See table of gross calorific values
of various fuels. For public gas supply in the UK, daily GCVs can be looked up
- Climate Change Levy. UK energy tax imposed on non-domestic users.
- Compact Fluorescent Lamp. Low-energy replacement for filament lamp, often plug-compatible with existing fitting.
- Combined Heat and Power. Scheme for supplying electricity with recovery of the resultant waste heat for useful purposes.
- Certified Measurement and Verification Professional. Qualification
awarded by the Efficiency Valuation Organisation to appropriately-educated and
experienced practitioners who have attended an approved
training course and
passed an examination set by the Association of Energy Engineers.
You can download a list of people
who have qualified as CMVPs in the UK
- Carbon dioxide - a product of combustion, and persistent greenhouse gas.
- Coefficient of Performance
- Ratio of work or useful output to the amount of work or energy input, most commonly
in relation to refrigeration equipment
- Conversion of fuels into heat provides opportunities for
energy savings for virtually every user, simply through improved maintenance.
Read more about the principles
and for a specific examination of bogus claims for magnetic
enhancers read this.
- Temperature control on heating circuit (usually when feeding radiators)
which limits heat output by varying
circulation temperature according to prevailing weather
- Compressed air
- Water returned from steam-heated equipment
- Conductive losses
- Heat lost from a building by transmission through solid elements such as walls, roofs, glazing, etc
- Controls, automatic
- One of the most significant aspects of energy management. Read more
on automatic controls
in buildings and
controls in other applications.
- Convective losses
- Heat lost from a building through ventilation and uncontrolled air ingress
- Controls, heating ventilating and air conditioning
- Controls, other
- Cusum chart explained
- Calorific value (see also GCV, NCV)