Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Abdulnaser I. Sayma"'
Autor:
Abdelrahman S. Abdeldayem, Salma I. Salah, Omar A. Aqel, Martin T. White, Abdulnaser I. Sayma
Publikováno v:
International Journal of Turbomachinery, Propulsion and Power, Vol 9, Iss 1, p 5 (2024)
Supercritical carbon dioxide (sCO2) can be mixed with dopants such as titanium tetrachloride (TiCl4), hexafluoro-benzene (C6F6), and sulphur dioxide (SO2) to raise the critical temperature of the working fluid, allowing it to condense at ambient temp
Externí odkaz:
https://doaj.org/article/d6fd603a0fc24124818a17c5e56760e1
Publikováno v:
International Journal of Thermofluids, Vol 15, Iss , Pp 100156- (2022)
Loss models are used to evaluate the aerodynamic performance of axial turbines at the preliminary design stage. The commonly used loss models were derived for air and steam turbines and have not been sufficiently investigated for turbines working wit
Externí odkaz:
https://doaj.org/article/7f94f02038414a1ab4c3a5f46f6b60cd
Publikováno v:
Energies, Vol 16, Iss 9, p 3901 (2023)
When the shaft rotates in microturbines, the rotational movement is converted to electrical power. This is achieved through a permanent magnet synchronous machine (PMSM) housed on the shaft and the power electronics components. To the best of the aut
Externí odkaz:
https://doaj.org/article/2126f3e468da461581bbb4645f19a1e1
Publikováno v:
Energies, Vol 14, Iss 20, p 6745 (2021)
This paper presents an experimentally validated computational study of heat transfer within a compact recuperated Brayton cycle microturbine. Compact microturbine designs are necessary for certain applications, such as solar dish concentrated power s
Externí odkaz:
https://doaj.org/article/2aa9359fa0d7411f94b6f6be6029221a
Autor:
Martin T. White, Abdulnaser I. Sayma
Publikováno v:
Frontiers in Energy Research, Vol 7 (2019)
The design of optimal organic Rankine cycle (ORC) systems requires the simultaneous identification of the optimal cycle architecture, operating conditions and working fluid, whilst accounting for the effect of these parameters on expander performance
Externí odkaz:
https://doaj.org/article/a7d5403c41de43ed9f2f71220d24d97f
Publikováno v:
Applied Sciences, Vol 10, Iss 15, p 5069 (2020)
Supercritical carbon dioxide (sCO2) power cycles are promising candidates for concentrated-solar power and waste-heat recovery applications, having advantages of compact turbomachinery and high cycle efficiencies at heat-source temperature in the ran
Externí odkaz:
https://doaj.org/article/644c12deacba4495836824b538b48dd0
Autor:
Salma I. Salah, Francesco Crespi, Martin T. White, Antonio Muñoz, Andrea Paggini, Marco Ruggiero, David Sánchez, Abdulnaser I. Sayma
Publikováno v:
Applied Thermal Engineering. 230:120612
The utilisation of certain blends based on supercritical CO2 (sCO2), namely CO2/TiCl4, CO2/C6F6 and CO2/SO2, have been found to be promising for enhancing the performance of power cycles for Concentrated Solar Power (CSP) applications; allowing for u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1f98347269ccfcc2530dc3540ca918a
https://doi.org/10.1016/j.applthermaleng.2023.120612
https://doi.org/10.1016/j.applthermaleng.2023.120612
Autor:
Abdelrahman S. Abdeldayem, Martin T. White, Andrea Paggini, Marco Ruggiero, Abdulnaser I. Sayma
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 144
Within this study, the blade shape of a large-scale axial turbine operating with sCO2 blended with dopants is optimized using an integrated aerodynamic-structural three-dimensional (3D) numerical model, whereby the optimization aims at maximizing the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6f56b20b7b1bb2a47277fdadaea4264
https://doi.org/10.1115/1.4055232
https://doi.org/10.1115/1.4055232
Autor:
Martin T. White, Abdulnaser I. Sayma
Publikováno v:
Energies, Vol 11, Iss 4, p 800 (2018)
The aim of this paper is to conduct a generalised assessment of both optimal working fluids and radial turbine designs for small-scale organic Rankine cycle (ORC) systems across a range of heat-source temperatures. The former has been achieved by cou
Externí odkaz:
https://doaj.org/article/1004c3c964c447b9ae5b09a21c407a06
Publikováno v:
Energies, Vol 14, Iss 6745, p 6745 (2021)
Energies
Volume 14
Issue 20
Energies
Volume 14
Issue 20
This paper presents an experimentally validated computational study of heat transfer within a compact recuperated Brayton cycle microturbine. Compact microturbine designs are necessary for certain applications, such as solar dish concentrated power s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fb0d32d91b21ae42f505d2b2ca585c3
https://openaccess.city.ac.uk/id/eprint/27014/1/energies-14-06745-v3.pdf
https://openaccess.city.ac.uk/id/eprint/27014/1/energies-14-06745-v3.pdf
