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Cogeneration units for the heating industry
Kašpar, Jakub ; Milčák, Pavel (referee) ; Kracík, Petr (advisor)
The bachelor thesis on the topic of Combined heat and power units for central heating systems focuses on the potential benefits of CHP units within energy mix of the Czech Republic. Furthermore, it describes basic functional principle and construction of gas CHP units. In the last part there is developed mathematical-physical-chemical model, which is able to predict the operating parameters of the CHP unit, assuming the combustion of a mixtures of natural gas and hydrogen, while the hydrogen concentration changes. The model was compiled on the basis of the technical sheet of the real motor generator MTU 20V4000 GS with an electrical output of 2,538 kW, which is designed for natural gas combustion. According to the calculations, it was found that the overall efficiency of the cogeneration unit decreases as the hydrogen concentration in fuel increases. At the same time, it is necessary to increase the power input of the fuel to maintain constant electric power.
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Cogeneration units for the heating industry
Kašpar, Jakub ; Milčák, Pavel (referee) ; Kracík, Petr (advisor)
The bachelor thesis on the topic of Combined heat and power units for central heating systems focuses on the potential benefits of CHP units within energy mix of the Czech Republic. Furthermore, it describes basic functional principle and construction of gas CHP units. In the last part there is developed mathematical-physical-chemical model, which is able to predict the operating parameters of the CHP unit, assuming the combustion of a mixtures of natural gas and hydrogen, while the hydrogen concentration changes. The model was compiled on the basis of the technical sheet of the real motor generator MTU 20V4000 GS with an electrical output of 2,538 kW, which is designed for natural gas combustion. According to the calculations, it was found that the overall efficiency of the cogeneration unit decreases as the hydrogen concentration in fuel increases. At the same time, it is necessary to increase the power input of the fuel to maintain constant electric power.
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