Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Seokwon Cho"'
Publikováno v:
Applications in Energy and Combustion Science, Vol 16, Iss , Pp 100203- (2023)
Catalyst-heating operation in compression-ignition engines is critical to ensure rapid light-off of exhaust catalysts during cold-start. This is typically achieved by using late post injections for increased exhaust enthalpy, where retardability is c
Externí odkaz:
https://doaj.org/article/5d97d8c12c3c4386ad1b17c62e380ccb
Publikováno v:
Applications in Energy and Combustion Science, Vol 16, Iss , Pp 100206- (2023)
Cold start in gasoline direct injection engines (GDI) is a critical issue that significantly impacts fuel consumption and emissions. Therefore, it is essential to investigate and improve the spray and air-fuel mixing processes during cold starts. Thi
Externí odkaz:
https://doaj.org/article/79b91afc128e49118581fd46ef97980b
Publikováno v:
Energies, Vol 12, Iss 10, p 1898 (2019)
Turbulence is one of the most important aspects in spark-ignition engines as it can significantly affect burn rates, heat transfer rates, and combustion stability, and thus the performance. Turbulence originates from a large-scale mean motion that oc
Externí odkaz:
https://doaj.org/article/9184e23d9259428b8e281971fb0c3369
Publikováno v:
Energies, Vol 12, Iss 5, p 844 (2019)
The knock phenomenon is one of the major hindrances for enhancing the thermal efficiency in spark-ignited engines. Due to the stochastic behavior of knocking combustion, analytical cycle studies are required. However, there are many problems to be ad
Externí odkaz:
https://doaj.org/article/d5d85e185ccf4d1789a5a8581b1be4c0
Publikováno v:
International Journal of Engine Research. 24:2223-2232
Diesel piston-bowl shape is a key design parameter that affects spray-wall interactions and turbulent flow development, and in turn affects the engine’s thermal efficiency and emissions. It is hypothesized that thermal efficiency can be improved by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93444a71537cbe0386fdb28c1641fe8b
https://doi.org/10.1177/14680874221117869
https://doi.org/10.1177/14680874221117869
Publikováno v:
SAE Technical Paper Series.
To cope with regulatory standards, minimizing tailpipe emissions with rapid catalyst light-off during cold-start is critical. This requires catalyst-heating operation with increased exhaust enthalpy, typically by using late post injections for retard
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad7a0716df62f616b49c8f501bc7003b
https://doi.org/10.4271/2023-01-0262
https://doi.org/10.4271/2023-01-0262
Publikováno v:
International Journal of Engine Research. 24:1077-1094
To comply with stringent CO2 regulations, enhanced thermal efficiency has been prioritized in internal combustion engine development; however, this has strongly driven the development of engines with operating conditions more prone to knock. Current
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1383baf5bf4331336a0cac0dfc0f48e7
https://doi.org/10.1177/14680874221074993
https://doi.org/10.1177/14680874221074993
Autor:
Jong Won Chung, Nam Ho Kim, Seokwon Cho, Chiheon Song, Joohan Kim, Kyoungdoug Min, Jaeyeop Lee, Sechul Oh
Publikováno v:
International Journal of Engine Research. 24:217-239
Direct injection system is widely adopted in spark-ignition engines to achieve higher thermal efficiency, but it accompanies a penalty in particulate emission, especially when engine is not fully warmed-up. Split injection strategy is known to be an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04d9f4c52af970893a08ca2800635e98
https://doi.org/10.1177/14680874211047524
https://doi.org/10.1177/14680874211047524
Publikováno v:
SAE International Journal of Advances and Current Practices in Mobility. 4:472-487
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c1d7ebc7f56ce654b660d910d0a9a3a
https://doi.org/10.4271/2021-01-1182
https://doi.org/10.4271/2021-01-1182