Study on heat losses during flame impingement in a diesel engine using phosphor thermometry surface temperature measurements
(2019) SAE World Congress Experience, WCX 2019 In SAE Technical Papers 2019.- Abstract
In-cylinder heat losses in diesel engines decrease engine efficiency significantly and account for approximately 14-19% [1, 2, 3] of the injected fuel energy. A great part of the heat losses during diesel combustion presumably arises from the flame impingement onto the piston. Therefore, the present study investigates the heat losses during flame impingement onto the piston bowl wall experimentally. The measurements were performed on a full metal heavy-duty diesel engine with a small optical access through a removed exhaust valve. The surface temperature at the impingement point of the flame was determined by evaluating a phosphor's temperature dependent emission decay. Simultaneous cylinder pressure measurements and high-speed videos... (More)
In-cylinder heat losses in diesel engines decrease engine efficiency significantly and account for approximately 14-19% [1, 2, 3] of the injected fuel energy. A great part of the heat losses during diesel combustion presumably arises from the flame impingement onto the piston. Therefore, the present study investigates the heat losses during flame impingement onto the piston bowl wall experimentally. The measurements were performed on a full metal heavy-duty diesel engine with a small optical access through a removed exhaust valve. The surface temperature at the impingement point of the flame was determined by evaluating a phosphor's temperature dependent emission decay. Simultaneous cylinder pressure measurements and high-speed videos are associated to the surface temperature measurements in each cycle. Thus, surface temperature readings could be linked to specific impingement and combustion events. The results showed a sharp increase of the surface temperature during the flame impingement and an abrupt decrease as the flame disappeared.
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- author
- Binder, Christian LU ; Matamis, Alexios LU ; Richter, Mattias LU and Norling, Daniel
- organization
- publishing date
- 2019-04-02
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Technical Paper - WCX SAE World Congress Experience
- series title
- SAE Technical Papers
- volume
- 2019
- article number
- 2019-01-0556
- publisher
- Society of Automotive Engineers
- conference name
- SAE World Congress Experience, WCX 2019
- conference location
- Detroit, United States
- conference dates
- 2019-04-09 - 2019-04-11
- external identifiers
-
- scopus:85064646818
- ISSN
- 0148-7191
- DOI
- 10.4271/2019-01-0556
- language
- English
- LU publication?
- yes
- id
- 2aa9702d-b872-45ec-ac0f-43c88f988191
- date added to LUP
- 2019-05-03 12:17:18
- date last changed
- 2022-04-25 22:56:37
@inproceedings{2aa9702d-b872-45ec-ac0f-43c88f988191, abstract = {{<p>In-cylinder heat losses in diesel engines decrease engine efficiency significantly and account for approximately 14-19% [1, 2, 3] of the injected fuel energy. A great part of the heat losses during diesel combustion presumably arises from the flame impingement onto the piston. Therefore, the present study investigates the heat losses during flame impingement onto the piston bowl wall experimentally. The measurements were performed on a full metal heavy-duty diesel engine with a small optical access through a removed exhaust valve. The surface temperature at the impingement point of the flame was determined by evaluating a phosphor's temperature dependent emission decay. Simultaneous cylinder pressure measurements and high-speed videos are associated to the surface temperature measurements in each cycle. Thus, surface temperature readings could be linked to specific impingement and combustion events. The results showed a sharp increase of the surface temperature during the flame impingement and an abrupt decrease as the flame disappeared.</p>}}, author = {{Binder, Christian and Matamis, Alexios and Richter, Mattias and Norling, Daniel}}, booktitle = {{Technical Paper - WCX SAE World Congress Experience}}, issn = {{0148-7191}}, language = {{eng}}, month = {{04}}, publisher = {{Society of Automotive Engineers}}, series = {{SAE Technical Papers}}, title = {{Study on heat losses during flame impingement in a diesel engine using phosphor thermometry surface temperature measurements}}, url = {{http://dx.doi.org/10.4271/2019-01-0556}}, doi = {{10.4271/2019-01-0556}}, volume = {{2019}}, year = {{2019}}, }