Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Colin Copeland"'
Publikováno v:
Adamou, A, Costall, A, Turner, J, Jones, A & Copeland, C 2022, ' Experimental performance and emissions of additively manufactured high-temperature combustion chambers for micro-gas turbines ', International Journal of Engine Research . https://doi.org/10.1177/14680874221082636
To date, 59 countries, representing 54% of global greenhouse gas emissions have made pledges for net-zero emissions targets within this century. This will require cleaner and more efficient sources of energy which is driving research into small-scale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c11aa44d732f3f74f22f39473d8f2288
https://doi.org/10.1177/14680874221082636
https://doi.org/10.1177/14680874221082636
Publikováno v:
AIAA SCITECH 2023 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfcddbaf40eb26583702a3596ab67216
https://doi.org/10.2514/6.2023-1644
https://doi.org/10.2514/6.2023-1644
Autor:
Colin Copeland, Stefan Tüchler
Publikováno v:
Shock Waves. 31:271-300
Wave rotors are unsteady flow machines that exchange energy through pressure waves. This has the potential for enhancing efficiency over a wide spectrum of applications, ranging from gas turbine topping cycles to pressure-gain combustors. This paper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7037e4415403dd9f660c92d346548577
https://doi.org/10.1007/s00193-020-00979-4
https://doi.org/10.1007/s00193-020-00979-4
Autor:
Stefan Tuechler, Colin Copeland
Publikováno v:
Tuechler, S & Copeland, C 2021, ' Parametric Numerical Study on the Performance Characteristics of a Micro-Wave Rotor Gas Turbine ', International Journal of Gas Turbine, Propulsion and Power Systems, vol. 12, no. 1, pp. 10-24 . https://doi.org/10.38036/JGPP.12.1_10
In this paper, an alternative micro-gas turbine is proposed, where the traditional compressor-turbine arrangement is replaced by an axial, throughflow wave rotor. The investigated wave rotor features symmetrically cambered wall profiles and angled po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5bc4a9279169b2096a3a8a33fe3ac65
https://doi.org/10.38036/jgpp.12.1_10
https://doi.org/10.38036/jgpp.12.1_10
3D modelling can be a very useful tool for optimising the design of turbocharger turbines. However, it is difficult to achieve high levels of correlation with experimental data which can undermine confidence in the 3D model results. A key difference
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20bbade969575610c13e68fce26537d0
https://doi.org/10.1115/1.0003734v
https://doi.org/10.1115/1.0003734v
Autor:
Adamos Adamou, Colin Copeland
Augmented backside cooling refers to the enhancement of the backside convection of a combustor liner using extended heat transfer surfaces to fully utilise the cooling air by maximising the heat transfer to pumping ratio characteristic. Although film
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::563497bf2da8461fdba3e36f4f3e0896
https://doi.org/10.1115/1.0003203v
https://doi.org/10.1115/1.0003203v
Autor:
Johan Bernards, Andrew Lewis, Sam Akehurst, Colin Copeland, Ciaran Branney, Hao Yuan, Bo Hu, Ian Kennedy, Sipeng Zhu
Publikováno v:
Zhu, S, Hu, B, Akehurst, S, Copeland, C, Lewis, A, Yuan, H, Kennedy, I, Bernards, J & Branney, C 2019, ' A review of water injection applied on the internal combustion engine ', Energy Conversion and Management, vol. 184, pp. 139-158 . https://doi.org/10.1016/j.enconman.2019.01.042
As a promising technique to reduce the in-cylinder temperature and exhaust temperature, mitigate combustion knock, improve combustion phasing and decrease NOx emissions, water injection applied on different types of engines has attracted extensive at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6e5fdbee2a056f627a8c3ee224c115b
https://doi.org/10.1016/j.enconman.2019.01.042
https://doi.org/10.1016/j.enconman.2019.01.042
Publikováno v:
Powers, K, Kennedy, I, Brace, C, Milewski, P & Copeland, C 2021, ' Development and Validation of a Model for Centrifugal Compressors in Reversed Flow Regimes ', Journal of Turbomachinery, vol. 143, no. 10, 101001, pp. 101001 . https://doi.org/10.1115/1.4050668
Turbochargers are widely used to help reduce the environmental impact of automotive engines. However, a limiting factor for turbochargers is compressor surge. Surge is an instability that induces pressure and flow oscillations that often damages the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f80cc382a4def6c2d06f0abcec67b114
https://purehost.bath.ac.uk/ws/files/220167764/TURBO_20_1156.pdf
https://purehost.bath.ac.uk/ws/files/220167764/TURBO_20_1156.pdf
Autor:
Katherine Powers, Ian Kennedy, Jamie Archer, Paul Eynon, John Horsley, Chris Brace, Colin Copeland, Paul Milewski
Publikováno v:
Powers, K, Kennedy, I, Archer, J, Eynon, P, Horsley, J, Brace, C, Copeland, C & Milewski, P 2022, ' A new first-principles model to predict mild and deep surge for a centrifugal compressor ', Energy, vol. 244, no. Part B, 123050 . https://doi.org/10.1016/j.energy.2021.123050
Centrifugal compressors are used in many applications, including automotive turbochargers. Surge is an instability that occurs at low mass flow rates that is often damaging. Even mild surge produces noise characteristics that cause problems with cust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02aa11565f8ccf44c9496db138d2b687
https://doi.org/10.1016/j.energy.2021.123050
https://doi.org/10.1016/j.energy.2021.123050