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Krail, Jürgen
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Official Name
Krail, Jürgen
Main Affiliation
Akademische Titel
Prof.(FH) DI DI(FH)
Email
juergen.krail@fh-burgenland.at
ORCID
Scopus Author ID
57210393827
Status
staff
Research Outputs
Now showing 1 - 8 of 8
- PublicationAssessing the technical feasibility of value chains for Reed based biofuels(2015)
; ; 261 1585 - Publication
255 1950 - PublicationComparative thermodynamic analysis of an improved ORC process with integrated injection of process fluidIn contrast to water-steam Rankine cycles, the ORC process uses organic working fluids. For working fluids of the dry class, a recuperator heat exchanger is frequently installed to increase the cycle efficiency. This paper analyses an improved ORC process with these features: A liquid working fluid stream is injected into the vapour flow between the high-pressure and the medium-pressure stage of the turbine. Furthermore, the recuperator is replaced by a spray condenser. The main objective is to increase efficiency with moderate changes in the process layout. A thermodynamic comparison of the improved process with a state-of-the-art ORC process is carried out by simulations and optimisations. A significant efficiency gain for the improved ORC process is obtained by a combination of the aforementioned features, mainly because of an increase of the mass flow in the economiser of the vapour generator (better heat utilization) and a corresponding mass flow in the medium stage of the turbine (additional power production). As a use case, waste heat utilization from clinker cooler at a temperature level of 275 °C was simulated. The improved process would lead to a significant increase in the overall net efficiency by up to 14%, compared to a state-of-the-art ORC process.
129 15507Scopus© Citations 7 - PublicationENEREED - Sustainable Energy Conversion from Reed(Klima- und Energiefonds, 2013-12-19)
; ; ; ; ; 260 5007 - PublicationImproved ORC process for power production by using low temperature heat(2021-10-13)
; 155 707