Analysis of cogeneration solutions for low and medium power

Résumé

The paper analyses the simultaneous production of heat and electricity by cogeneration using two distinct solutions: with gas turbine and thermal engine. The analysis is made for cogeneration solutions for low and medium power. The advantages of cogeneration energy production are identified in both solutions, so the process of combined and simultaneous production of the two forms of energy achieves an effective primary energy saving (fuel) compared to the separate production of mechanical work (in a thermal power plant) and heat (in a thermal power plant). This fuel economy is reflected from an economic point of view, in the reduction of the fuel costs of the power plant and from an ecological point of view, in the reduction of the pollution of the environment. Conclusions are drawn on the opportunity of using the two solutions depending on maximum demand, power supply time, the degree of flattening (or non-uniformity) of the classified consumption curve and energy demand structure (electrical/thermal).