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Calculating heat loss
The calculated transmissions loss is the sum of the heat losses from each individual section of the building
Calculating pressure loss
To select the right pump and achieve the proper balance in the system, it is necessary to calculate the pressure loss throughout the system.
Calculation of flow
In order to calculate pressure loss in a heating or cooling system it is essential to know the volume flow rate Q. The volume flow rate is based on heat demand, temperature difference, specific energy capacity, and density.
Carbon credit
A carbon credit can be used for trading in the carbon market. One carbon credit consists of one ton of CO2 (or sometimes CO2 equivalent gases).
Carbon offsetting
When you pay someone else to remove the GHGs you emitted into the atmosphere, it’s called carbon offsetting.
Cast iron
Cast iron is an alloy of iron, silicon and carbon.
Cavitation
Cavitation occurs when the pressure of a liquid at a constant temperature falls below its saturated vapour pressure point (or boiling point).
CE marking
The CE mark is the manufacturer’s/importer’s proof that their product meets the requirements stated in the relevant EU Directives and EN standards.
Central heating
The term central heating covers hydronic heating systems with a central boiler or furnace either inside the building being heated or in the immediate vicinity.
CFC (Chlorofluorocarbon)
CFC and HCFC refrigerants are detrimental to the breakdown of the ozone layer and the greenhouse effect. CFC is an abbreviation of chlorofluorocarbon; HCFC is an abbreviation of Hydrochlorofluorocarbon. They describe the molecules’ atom content.