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The case study analyzed in the paper refers to a group of new buildings built near the campus of the University Politehnica of Bucharest. The University?s campus has its own cogeneration power plant equipped with two reciprocating engines using natural gas. Each engine generates 800 kWe of electricity for University?s own consumption and for selling it on electricity market. During the winter time the heat recovered from the two engines, is used within the district heating network of the University?s campus. Durin...

In underground mines the methane, accompanying the exploitation of the primary mineral - hard coal, and is discharged into the atmosphere in two ways: with ventilation air (70%) and methane drainage system (30%). The development of methane from coal seams is important for the following reasons: as it can be used for the production of electricity and heat or in cogeneration. This is because the emission of methane into the atmosphere contributes to the greenhouse effect. Currently the work is being carried out by t...

The paper is a technical analysis for choosing the heat supply source of a technological heat consumer requiring steam at 2 parameters pairs: 32 bar & 400?C, respectively 6.4 bar & at least 200?C. The analysis of the whole combined heat and power plant (CHPP) processes and performances are performed for 4 CHPP designs, all of them with Gas Turbines (GT) and Heat Recovery Steam Generators (HRSG), through the numerical modeling of the processes in the CHPP components and by assembling them. The computing steps are: ...