Abstract

Cogeneration is defined as the process of simultaneous production of heat and electricity, with the same installation (heat engine-electric generator group, turbine, etc.). Unlike classic Thermal Power Plants, cogeneration plants can be sized in correlation with the thermal energy requirement, which means that electricity is considered a “secondary” product. Throughout the article, taking into account the general theoretical aspects of the definition and operation of cogeneration systems, through the prism of specific energy indicators, the results obtained in the case of the implementation of a cogeneration system that uses the energy potential of gases are studied of combustion, for the production of the thermal agent for heating and preparation of hot water for consumption. of steam. From a functional point of view, at the level of a refinery, three superheated steam networks are needed, corresponding to three different pressure domains, which means that the results obtained in the study as the case may be, to refer to three distinct modes of operation of the cogeneration system. The main purpose of the operation of such a system for the combined production of electrical and thermal energy is to obtain as much energy as possible in the form of mechanical work by expanding steam in the turbines.

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