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Joint paper by City, University of London, University of Seville and Bakher Hughes published in Applied Thermal Engineering

15 May, 2023/in Conference and journal papers /by jose

Exhibition at the SCARABEUS experimental facility, TU Wien

11 May, 2023/in News, Sin categoría /by jose

As SCARABEUS is reaching the final stage of the project(end scheduled in February 2024), the consortium is very glad and proud to announce the Exhibition that will take place at the Science Centre, TU Wien, hosting the experimental facility where the innovative mixtures and components developed in the course of the project […]

Joint paper by City, University of London, University of Seville and Bakher Hughes published in Applied Thermal Engineering

15 May, 2023/in Conference and journal papers /by jose

Exhibition at the SCARABEUS experimental facility, TU Wien

11 May, 2023/in News, Sin categoría /by jose

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Joint paper by City, University of London, University of Seville and Bakher Hughes published in Applied Thermal Engineering

15 May, 2023/in Conference and journal papers /by jose

The SCARABEUS teams at City, University of London, University of Seville and Baker Hughes have recently published a paper authored jointly by the three institutions. This scientific publication is the result from the collaboration between Work Package 3 – Turbomachinery Design and Work Package 5 – Techno-economic, Social and Environmental Assessments. In particular, the team at University of Seville has provided the boundary conditions for the design of the turbines, which has been carried out by City, University of London and Baker Hughes jointly. Then, the impact of the resulting turbomachinery efficiency on cycle performance has been assessed in WP5.

The paper has been published in volume 230 of Applied Thermal Engineering (Elsevier) and it is available in Open Access on the publisher’s website (link). Check the abstract below:

The utilisation of certain blends based on supercritical CO₂ (sCO₂), namely CO₂/TiCl₄, CO₂/C₆H₂ and CO₂/SO₂, have been found to be promising for enhancing the performance of power cycles for Concentrated Solar Power (CSP) applications; allowing for up to a 6% enhancement in cycle efficiency with respect to a simple recuperated CO₂ cycle, depending upon the nature of the used blend and the cycle configuration of choice. This paper presents an investigation of the impact of adopting these sCO₂-based blends on the flow path design for a multi-stage axial turbine whilst accounting for aerodynamic, mechanical and rotordynamic considerations. This includes assessing the sensitivity of the turbine design to selected working fluid and imposed optimal cycle conditions. Ultimately, this study aims to provide the first indication that a high-efficiency turbine can be achieved for a large-scale axial turbine operating with these non-conventional working fluids and producing power in excess of 120 MW. To achieve this aim, mean-line aerodynamic design is integrated with mechanical and rotordynamic constraints, specified based on industrial experience, to ensure technically feasible solutions with maximum aerodynamic efficiency. Different turbine flow path designs have been produced for three sCO₂ blends under different cycle boundary conditions. Specifically, flow paths have been obtained for optimal cycle configurations at five different molar fractions and two different turbine inlet pressure and temperature levels of 250 & 350 bar and 550 & 700 °C respectively. A total-to-total turbine efficiency in excess of 92% was achieved, which is considered promising for the future of CO₂ plants. The highest efficiencies are achieved for designs with a large number of stages, corresponding to reduced hub diameters due to the need for a fixed synchronous rotational speed. The large number of stages is contrary to existing sCO₂ turbine designs, but it is found that an increase from 4 to 14 stages can increase the efficiency by around 5%. Ultimately, based on the preliminary cost analysis results, the designs with a large number of stages were found to be financially feasible compared to the designs with a small number of stages.

Flowpath optimisation methodology used in the paper

Exhibition at the SCARABEUS experimental facility, TU Wien

11 May, 2023/in News, Sin categoría /by jose

As SCARABEUS is reaching the final stage of the project(end scheduled in February 2024), the consortium is very glad and proud to announce the Exhibition that will take place at the Science Centre, TU Wien, hosting the experimental facility where the innovative mixtures and components developed in the course of the project have been tested successfully.

A fabulous programme has been set up by the team at TU Wien, with assorted speakers from academia and industry who will share their experience, knowledge and thoughts about supercritical Carbon Dioxide power cycle technology.

10:00	Welcome – Prof. Markus Haider. Inst. for Energy Systems and Thermodynamics, TU Wien.
10:15	The SCARABEUS project and experimental work Chaired by Markus Haider (TU Wien) *Overwiew about the SCARABEUS-Project* Prof. Giampaolo Manzolini (Project Coordinator) Department of Energy, Politecnico di Milano. *The sCO₂-test rig at TU Wien* DI Viktoria Illyés (PhD-student) Institute for Energy Systems and Thermodynamics, TU Wien
11:15	Coffee break
11:30	*Presentation of sCO₂-test rig and lab of TUW* Markus Haider, Viktoria Illyés, Andreas Werner Institute for Energy Systems and Thermodynamics, TU Wien
12:30	Lunch (Catering)
13:30	sCO2 power cycles: Components I, perspectives and experiments Chaired by Markus Haider (TU Wien) *sCO₂ from* *Baker* *Hughes´ perspective* Marco Fiori (MSc), Product Development, Technology and Innovation Strategy Baker Hughes. *Future outlook and challenges for implementing sCO₂ energy conversion systems* Prof. David Sánchez Department of Energy Engineering, University of Seville. *sCO₂ as a working medium – characteristics of flow and heat transfer* Prof. René Pecnik Head of Process and Energy Laboratory Delft University of Technology.
15:00	Coffee break
15:30	sCO2 power cycles: Components II and mixtures Chaired by Andreas Werner (TU Wien) *Turbomachinery from standpoint of research* Prof. T. Turunen-Saaresti School of Energy Systems LUT University, Finland *Blends for sCO2 in power cycles* Dr. Andreas Jäger Head of Working Group for Thermal Energy Machinery and -plants TU Dresden. *sCO2 test rigs: world wide and in Europe (to be confirmed)* Ing. Otakar Frýbort Centrum Výzkumu Řež, s.r.o., Czech Republic.

Attendance to the Exhibition is free and includes not only a technical tour to the lab and access to the room sessions but also excellent networking opportunities with the partners of the SCARABEUS consortium and fellow attendees. Do not miss this opportunity to get acquainted with the latest developments for next generation Concentrated Solar Power technologies!

Click to download full programme and directions to the venue: download

For more information, get in contact with the Dissemination Manager of the SCARABEUS project: Prof. David Sánchez (ds@us.es)

Half Sized Blog Element (Single Author Style)

Half Sized Blog Element (Multi Author Style)

Joint paper by City, University of London, University of Seville and Bakher Hughes published in Applied Thermal Engineering

Exhibition at the SCARABEUS experimental facility, TU Wien

Joint paper by City, University of London, University of Seville and Bakher Hughes published in Applied Thermal Engineering

Exhibition at the SCARABEUS experimental facility, TU Wien

Full Sized Blog Element (Big Preview Pic)

Joint paper by City, University of London, University of Seville and Bakher Hughes published in Applied Thermal Engineering

Exhibition at the SCARABEUS experimental facility, TU Wien

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