Gas Turbine Cycle with External Combustion Chamber for Prosumer and Distributed Energy Systems

Dariusz Mikielewicz , Krzysztof Kosowski , Karol Tucki , Marian Piwowarski , Robert Stępień , Olga Anna Orynycz , Wojciech Włodarski

Abstract

The use of various biofuels, usually of relatively small Lower Heating Value (LHV), affects the gas turbine efficiency. The present paper shows that applying the proposed air by-pass system of the combustor at the turbine exit causes tan increase of efficiency of the turbine cycle increased by a few points. This solution appears very promising also in combined gas/steam turbine power plants. The comparison of a turbine set operating according to an open cycle with partial bypassing of external combustion chamber at the turbine exit (a new solution) and, for comparison, a turbine set operating according to an open cycle with a regenerator. The calculations were carried out for different fuels: gas from biomass gasification (LHV = 4.4 MJ/kg), biogas (LHV = 17.5 MJ/kg) and methane (LHV = 50 MJ/kg). It is demonstrated that analyzed solution enables construction of several kW power microturbines that might be used on a local scale. Such turbines, operated by prosumer’s type of organizations may change the efficiency of electricity generation on a country-wide scale evidently contributing to the sustainability of power generation, as well as the economy as a whole.
Author Dariusz Mikielewicz
Dariusz Mikielewicz,,
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, Krzysztof Kosowski
Krzysztof Kosowski,,
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, Karol Tucki
Karol Tucki,,
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, Marian Piwowarski
Marian Piwowarski,,
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, Robert Stępień
Robert Stępień,,
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, Olga Anna Orynycz (FEM / DPM)
Olga Anna Orynycz,,
- Department of Production Management
, Wojciech Włodarski
Wojciech Włodarski,,
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Journal seriesEnergies, ISSN 1996-1073, (N/A 140 pkt)
Issue year2019
Vol12
No18
Pages1-19
Publication size in sheets0.9
Keywords in Englishbiofuels; sustainable power generation; microturbines
ASJC Classification1700 General Computer Science
DOIDOI:10.3390/en12183501
URL https://www.mdpi.com/1996-1073/12/18/3501
Internal identifierROC 19-20
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 12-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.156; WoS Impact Factor: 2018 = 2.707 (2) - 2018=2.99 (5)
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