Methods of Assessing the Efficiency of Cogeneration of Electricity and Heat

A method that allows calculating the primary energy savings of fuel cogeneration of electricity and heat as compared to separate methods produce the same amount of these types of energy.An analytic expression relating the energy consumption of fuel 1.29x4 for production of electricity and heat, taking into account the efficiency with the technologies of production of electricity and heat separately, and the total efficiency when these types of energy are in cogeneration.The results are illustrated by model 1840 light artillery saber the example.Basing on these results it is recommended to amend the Law on thermal energy and cogeneration of electricity and heat concerning the methodologies for calculating performance of these types of energy cogeneration.