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Cooling surface
A cooling surface is used for cooling of outside air before injection into the building.
Cooling tower
A cooling tower is used to remove excess heat from an air-conditioning system if the heat cannot be utilised for another purpose.
COP (Coefficient of performance)
Coefficient of performance (COP), is an expression of the efficiency of a heat pump.
Corrosion
Corrosion can occur on external and internal surfaces of pipes, tanks and radiators.
Corrosion fatigue
Corrosion fatigue describes a situation where a metal is exposed to both mechanical fatigue and corrosion simultaneously.
COSP (Coefficient of system performance)
The COSP of a heat pump is based on the total heat extracted (also referred to as Q) in relation to the energy supplied to the heat pump (also referred to as W).
Crevice corrosion
Generally, metallic corrosion involves the degradation of an exposed metal surface. Corrosion occurs in various forms ranging from uniform attacks over the entire surface to severe local attacks. Crevice corrosion starts more easily than for example pitting corrosion, another form of localized corrosion. Crevice corrosion occurs at narrow openings or spaces between two metal surfaces or between metals and non-metal surfaces. It is usually associated with stagnant conditions in the crevice. ...
Cross flow heat exchanger
A cross-flow heat exchanger exchanges thermal energy from one airstream to another in an air handling unit (AHU).
Decommissioning and disposal costs (Cd)
In the context of life cycle cost, decommissioning and disposal costs are non-existent or modest in commercial building systems.
Decomposition
Decomposition is the breakdown or degradation of complex organic substances into simpler substances by chemical or biological processes.