Certification

Declaration issued by specific supervisory and control authorities relating to the achievement of international quality standards.

Clarification

Elimination of the turbidity of a liquid through sedimentation and filtering with the addition of suitable substances.

CO2

Code indicating carbon dioxide; is the product of oxidation of carbon compounds contained in fuels used. Is a greenhouse gas.

Cogeneration

In the most widely accepted definition of the term, indicates joint, concurrent production of electric energy and heat.
More generally, means concurrent generation of several secondary energy sources from a single primary source. For example, the joint production of electric energy and heat at a thermo-electric power station where the steam leaving the turbine is condensed into hot or superheated water that can be used for air conditioning or other industrial purposes.

Collection (in a water system)

Activity of collecting water in order to convey this to a plant.

Combined cycle (combined cycle power station)

A production plant in which several thermodynamic processes co-exist. The classical type of combined cycle is a plant comprising one or more sets of gas turbine generator units whose exhaust gases feed a boiler with their residual heat. This boiler may be powered with an alternative fuel. The steam produced by the boiler is used to power a steam turbine coupled to a generator.

Condenser

Piece of equipment inside which steam leaving the turbines condenses. Once it has given up its energy content to the turbines, making them spin, the steam has to be condensed into water which can then be sent back to the boiler so that more steam can be produced. Seawater or river water is used to condense the steam.

previous 1 2 next