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


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,,
, Krzysztof Kosowski
Krzysztof Kosowski,,
, Karol Tucki
Karol Tucki,,
, Marian Piwowarski
Marian Piwowarski,,
, Robert Stępień
Robert Stępień,,
, Olga Anna Orynycz (FEM / DPM)
Olga Anna Orynycz,,
- Department of Production Management
, Wojciech Włodarski
Wojciech Włodarski,,
Journal seriesEnergies, ISSN 1996-1073, (N/A 140 pkt)
Issue year2019
Publication size in sheets0.9
Keywords in Englishbiofuels; sustainable power generation; microturbines
ASJC Classification1700 General Computer Science
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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