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Selected technical problems of cogeneration of electric energy and heat

Lampart P.

Transactions of the Institute of Fluid-Flow Machinery

2015

nr 127

137--152

The paper is focused on selected technical problems of cogeneration of heat and electric power (combined heat and power – CHP) both in a large and small scale. First, largescale cogeneration systems applied in large power industry are discussed and results of adaptive control of extraction condensing turbines are presented. Then, advantages of distributed cogeneration are pointed out and small-scale cogeneration systems aimed for modernisation of a fossil-fuel district heating plant are investigated. At the end of the paper, organic Rankine cycle (ORC) heat and power units are described for biomassfuelled cogeneration and topping of main generation units to use the recovery heat.

Performance analysis of small power plants with a backpressure or extraction-condensing steam turbines

Krzyślak P., Lampart P.

Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

2011

nr 140

123-130

Two cogeneration steam turbine cycles for a biomass station are investigated - a cycle with a backpressure and an extraction-condensing turbine. The operation of these turbines is scrutinized for a given yearly distribution of heat demand from the healing network. The methodology employed here may serve as a model for broadened economic analysis and selection of an energy and economy effective variant of installation.