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Abstract
The chapter is aimed at utilisation of waste heat in the reference supercritical power plant in the manner to produce electricity in ORC installation. The waste heat is available in the form of a stream of hot water at 90°C, recovered from the exhaust gases in the amount of 200MW. Such low enthalpy heat source is rather insufficient to produce a good quality vapour to feed the ORC turbine. Therefore an original approach to increase temperature of the vapour of ORC working fluid at the inlet to the turbine has been proposed through the use of heat from the bleed steam from the low-pressure part of the steam turbine of the reference power plant. Additionally the system uses heat from the CO2 capture installation. Analysis was accomplished using the Aspen Plus numerical code. Investigated were four working fluids such as pentane, ethanol, R236ea and R245fa. All fluids rendered the increase of the unit power and efficiency, however the conclusion is that not always the fluid having highest thermal efficiency is capable of producing the highest power.
Authors (5)
-
Łukasz Bartela
- Politechnika Śląska .
-
Piotr Ziółkowski
- IMP PAN .
-
Jarosław Mikielewicz
- IMP PAN .
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Keywords
Details
- Category:
- Monographic publication
- Type:
- rozdział, artykuł w książce - dziele zbiorowym /podręczniku o zasięgu krajowym
- Title of issue:
- W : Aktualne Zagadnienia Energetyki. - Tom II strony 327 - 341
- Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Mikielewicz D., Bartela Ł., Ziółkowski P., Wajs J., Mikielewicz J.: Operation of the 900 MW power plant with the ORC supplied from three heat sources// W : Aktualne Zagadnienia Energetyki. - Tom II/ ed. K. Wójs, P. Szulc Wrocław: Oficyna Wydawnicza Politechniki Wrocławskiej, 2014, s.327-341
- Verified by:
- Gdańsk University of Technology
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