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Study on heat losses during flame impingement in a diesel engine using phosphor thermometry surface temperature measurements

Binder, Christian LU ; Matamis, Alexios LU ; Richter, Mattias LU and Norling, Daniel (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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Please use this url to cite or link to this publication:
author
organization
publishing date
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
2020-01-13 01:42:41
@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},
}