TECHNICAL PAPERS: Gas Turbines: Industrial and Cogeneration

Technical and Tariff Scenarios Effect on Microturbine Trigenerative Applications

[+] Author and Article Information
Stefano Campanari, Ennio Macchi

Energetics Department, Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milano, Italye-mail: ennio.macchi@polimi.it

J. Eng. Gas Turbines Power 126(3), 581-589 (Aug 11, 2004) (9 pages) doi:10.1115/1.1762904 History: Received October 01, 2002; Revised March 01, 2003; Online August 11, 2004
Copyright © 2004 by ASME
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Yearly distribution of the electric, heating and cooling loads. Lines represent weekly minimum, average, and maximum power, referred to the peak of heat demand (with the exception of the minimum cooling demand which is equal to zero).
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MTG part-load performance. The actual operating range considered in the simulation is limited to 60–100% due to specific emissions limitation.
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Effects of MTG efficiency on the optimization of MTG versus building size, by the point of view of first-law efficiency and EES
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Effects of MTG efficiency on the optimization of MTG versus building size, by the point of view of NPV and economic savings on the energy bill
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Weekly analysis of plant EES and economic savings on the energy bill
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Effect of fuel cost on system IRR and MTG firing hours per year
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Influence of electricity purchase/sale cost ratio (RMF) on system IRR and on the fraction of electricity sold/electricity generated
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Effect of taxation on investment IRR
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Effects of operation with target EES as constraint on IRR and first-law efficiency. Dots indicate the configurations resulting from economic optimization.
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Layout configuration for the trigeneration plant. The ERC/EHP unit may operate with contemporary generation of heating and cooling with a summer configuration (ERC, blue lines) or winter (EHP, red lines, dashed) configuration.




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