Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Jim B. W. Kok"'
Publikováno v:
Energies, Vol 17, Iss 8, p 1885 (2024)
When aiming to cut down on the emission of nitric oxides by gas turbine engines, it is advantageous to have them operate at low combustion temperatures. This is achieved by lean premixed combustion. Although lean premixed combustion is a proven and p
Externí odkaz:
https://doaj.org/article/65a0f07ec4524f168921dd2cdf23f1db
Publikováno v:
Energies, Vol 17, Iss 7, p 1680 (2024)
In combustor systems, thermoacoustic instabilities may occur and must be avoided for reliable operation. An acoustic network model can be used to predict the eigenfrequencies of the instabilities and the growth rate by incorporating the combustion dy
Externí odkaz:
https://doaj.org/article/6ad84bab3fae48ec92c77c6ad7399055
Autor:
Mehmet Kapucu, Jim B. W. Kok
Publikováno v:
Energies, Vol 16, Iss 6, p 2515 (2023)
Thermoacoustic instabilities in gasturbine combustor systems can be predicted in the design phase with a thermoacoustic network model. In this model, the coupling between acoustic pressure fluctuations and the combustion rate is described by the Flam
Externí odkaz:
https://doaj.org/article/bcb20c977d48420fbfb2e746cd5abb90
Publikováno v:
Energies, Vol 15, Iss 3, p 730 (2022)
Numerical simulations are performed on a combustor setup which represents the recirculating behaviour of a combustor in the flameless combustion regime. Previous experimental and numerical studies showed that heat loss is prominent for this setup. He
Externí odkaz:
https://doaj.org/article/974e49494c4e4786a464d33da6fffdb7
Autor:
Jesse W. Hofsteenge, Jim B. W. Kok
Publikováno v:
Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine
Blends of H2 with CH4 and/or CO have become of interest with hydrogen as sustainable fuel. In the past, numerical models were derived to simulate combustion of H2-CO (syngas) mixtures. This paper compares the performance of a newly implemented Flamel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d1cd0847f16fcc26a3fbd0d87af1764
https://doi.org/10.1115/gt2022-82937
https://doi.org/10.1115/gt2022-82937
Autor:
Virginia Fratalocchi, Jim B. W. Kok
Publikováno v:
Combustion Theory and Modelling, 22(1), 91-109. Taylor & Francis
A numerical investigation of the interaction between a spray flame and an acoustic forcing of the velocity field is presented in this paper. In combustion systems, a thermoacoustic instability is the result of a process of coupling between oscillatio
Publikováno v:
International Journal of Spray and Combustion Dynamics, Vol 9 (2017)
International journal of spray and combustion dynamics, 9(4), 452-469. Multi-Science Publishing Co. Ltd
International journal of spray and combustion dynamics, 9(4), 452-469. Multi-Science Publishing Co. Ltd
Thermo-acoustic instabilities in gas turbine engines are studied to avoid engine failure. Compared to the engines with annular combustors, the can-annular combustor design should be less vulnerable to acoustic burner-to-burner interaction, since the
Autor:
Jim B. W. Kok, Virginia Fratalocchi
Publikováno v:
Energy procedia, 142, 4145-4150. Elsevier
In order to fire gas turbine engines on ammonia, knowledge is acquired about the combustion characteristics and model possibilities of this carbon free fuel. To this end in this paper the projection of detailed chemistry of ammonia on a low dimension
Autor:
Jim B. W. Kok, Virginia Fratalocchi
Publikováno v:
Combustion science and technology, 189(10), 1659-1680. Taylor & Francis
Ethanol is a bio-fuel widely used in engines as a fuel or fuel additive. It is, in particular, attractive because it can be easily produced in high quality from renewable resources. Its properties are of interest in many fields, such as gas turbines
Publikováno v:
Acta Acustica United with Acustica, 104(4), 685-696. S. Hirzel Verlag GmbH
Thermo-acoustic instabilities in high power density gas turbine engines have to be predicted in order to avoid unexpected shutdown events. To predict these instabilities, the acoustics behavior of the combustion system needs to be analyzed. The work
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a5629922581c60bb0ac576e8ec5ae4a
https://research.utwente.nl/en/publications/0f18785c-18ec-4d93-803a-602b26c64cf9
https://research.utwente.nl/en/publications/0f18785c-18ec-4d93-803a-602b26c64cf9