Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Andrzej Wolff"'
Autor:
Grzegorz Koszalka, Andrzej Wolff
Publikováno v:
Energies, Vol 16, Iss 24, p 8096 (2023)
The vast majority of research dedicated to enhancing the homogenous charge compression ignition (HCCI) low-temperature combustion system is focused on improving controllability, efficiency and emissions. This article aims to assess the impact of HCCI
Externí odkaz:
https://doaj.org/article/0c38cb10e76e4182972796a5011179be
Autor:
Andrzej Wolff, Grzegorz Koszałka
Publikováno v:
Combustion Engines, Vol 190, Iss 3, Pp 88-94 (2022)
A piston-rings-cylinder (PRC) assembly determines the blowby, engine oil consumption, and friction and wear processes accompanying the system's operation. Thus, it is crucial for the whole IC engine efficiency and lifetime. A lot of research effort i
Externí odkaz:
https://doaj.org/article/46fa7ac52f51454db06c34c63b36904e
Publikováno v:
Energies, Vol 16, Iss 11, p 4514 (2023)
The effectiveness of railway brakes strongly depends on their thermal condition. A computer simulation and experimental investigations on a full-scale dynamometric stand were chosen as an adequate analysis of the heat transfer process in brakes. The
Externí odkaz:
https://doaj.org/article/c7091d6adec3485ab6bd2e420d9aa4d0
Autor:
Andrzej WOLFF
Publikováno v:
Combustion Engines, Vol 178, Iss 3, Pp 257-263 (2019)
In the paper a comprehensive model of a piston-ring-cylinder (PRC) system has been presented. The local thickness of the oil film can be compared to height of the combined surface roughness of a cylinder liner and piston rings. Equations describing t
Externí odkaz:
https://doaj.org/article/682973b7eb934b70a9cb1fcd67ef3754
Autor:
Andrzej WOLFF
Publikováno v:
Combustion Engines, Vol 170, Iss 3, Pp 164-170 (2017)
In the paper a comprehensive model of a piston ring pack motion on an oil film has been presented. The local thickness of the oil film can be compared to height of the combined surface roughness of a cylinder liner and piston rings. Equations describ
Externí odkaz:
https://doaj.org/article/89aedce2920843c386527fcf0a185a43
Publikováno v:
Chemical Engineering Transactions, Vol 67 (2018)
Quantitative/semi-quantitative explosion risk assessment methods are used for evaluation purposes [e.g. 2]. These methods are based on the estimation of explosion risk based on the frequency of occurrence of sources of ignition and possible effects o
Externí odkaz:
https://doaj.org/article/9bb1ba478f1b40bfb8829a38ac4ea63e
Publikováno v:
Energies; Volume 16; Issue 11; Pages: 4514
The effectiveness of railway brakes strongly depends on their thermal condition. A computer simulation and experimental investigations on a full-scale dynamometric stand were chosen as an adequate analysis of the heat transfer process in brakes. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::09d54fa9b59609b1d7c7dcaa0f03d507
Autor:
Jacek Kukulski, Andrzej Wolff
Publikováno v:
Problemy Kolejnictwa - Railway Reports. :59-69
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9df8ac42b50b7e969d7fb3f47791389d
https://doi.org/10.36137/1857p
https://doi.org/10.36137/1857p
Autor:
Andrzej Wolff, Jacek Kukulski
Publikováno v:
Problemy Kolejnictwa - Railway Reports. :139-149
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db71cd500b8f65893164a73c3b406875
https://doi.org/10.36137/1857e
https://doi.org/10.36137/1857e
Autor:
Andrzej Wolff
Publikováno v:
Tribology Transactions. 57:653-667
A comprehensive model of the system piston–ring–cylinder (PRC) of a marine two-stroke engine is presented. Among submodels developed by the author concerning gas flow through the labyrinth seal of piston rings, oil flow, ring twist, and axial rin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bb6ddaa0a5a886335b72cea19872f19
https://doi.org/10.1080/10402004.2014.895886
https://doi.org/10.1080/10402004.2014.895886