CFD Investigation on Injection Strategy and Gasoline Quality Impact on In-Cylinder Temperature Distribution and Heat Transfer in PPC
(2013) ICE2013 - 11th International Conference on Engine & Vehicles- Abstract
- Recently, internal combustion engine design has been moving towards downsized, more efficient engines. One key in designing a more efficient engine is the control of heat losses, i.e., improvements of the thermodynamic cycle. Therefore, there is increasing interest in examining and documenting the heat transfer process of an internal combustion engine. A heavy-duty diesel engine was modeled with a commercial CFD code in order to examine the effects of two different gasoline fuels, and the injection strategy used, on heat transfer within the engine cylinder in a partially premixed combustion (PPC) mode. The investigation on the fuel quality and injection strategy indicates that the introduction of a pilot injection is more beneficial in... (More)
- Recently, internal combustion engine design has been moving towards downsized, more efficient engines. One key in designing a more efficient engine is the control of heat losses, i.e., improvements of the thermodynamic cycle. Therefore, there is increasing interest in examining and documenting the heat transfer process of an internal combustion engine. A heavy-duty diesel engine was modeled with a commercial CFD code in order to examine the effects of two different gasoline fuels, and the injection strategy used, on heat transfer within the engine cylinder in a partially premixed combustion (PPC) mode. The investigation on the fuel quality and injection strategy indicates that the introduction of a pilot injection is more beneficial in order to lower heat transfer, than adjusting the fuel quality. This is due to reduced wall exposure to higher temperature gases and more equally distributed heat losses in the combustion chamber. A comparison was also made between two loads with the same fuel quality and injection strategy, which revealed that even though the relative heat load to the walls was higher in the lower load case, the gross indicated efficiency was higher, due to a lower value of the
exhaust energy. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4172735
- author
- Fridriksson, Helgi LU ; Hajireza, Shahrokh LU ; Sundén, Bengt LU and Tunér, Martin LU
- organization
- publishing date
- 2013
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- CFD, Heat Transfer, PPC Engine, Injection Strategy, Gasoline Quality
- host publication
- [Host publication title missing]
- pages
- 13 pages
- publisher
- SAE
- conference name
- ICE2013 - 11th International Conference on Engine & Vehicles
- conference location
- Capri, Napoli, Italy
- conference dates
- 2013-09-18
- external identifiers
-
- other:SAE Technical Paper 2013-24-0009
- scopus:84890324864
- DOI
- 10.4271/2013-24-0009
- language
- English
- LU publication?
- yes
- id
- d5b917d3-31c4-4ef7-af9a-0980da163272 (old id 4172735)
- date added to LUP
- 2016-04-04 09:59:07
- date last changed
- 2022-02-21 02:29:38
@inproceedings{d5b917d3-31c4-4ef7-af9a-0980da163272, abstract = {{Recently, internal combustion engine design has been moving towards downsized, more efficient engines. One key in designing a more efficient engine is the control of heat losses, i.e., improvements of the thermodynamic cycle. Therefore, there is increasing interest in examining and documenting the heat transfer process of an internal combustion engine. A heavy-duty diesel engine was modeled with a commercial CFD code in order to examine the effects of two different gasoline fuels, and the injection strategy used, on heat transfer within the engine cylinder in a partially premixed combustion (PPC) mode. The investigation on the fuel quality and injection strategy indicates that the introduction of a pilot injection is more beneficial in order to lower heat transfer, than adjusting the fuel quality. This is due to reduced wall exposure to higher temperature gases and more equally distributed heat losses in the combustion chamber. A comparison was also made between two loads with the same fuel quality and injection strategy, which revealed that even though the relative heat load to the walls was higher in the lower load case, the gross indicated efficiency was higher, due to a lower value of the<br/><br> exhaust energy.}}, author = {{Fridriksson, Helgi and Hajireza, Shahrokh and Sundén, Bengt and Tunér, Martin}}, booktitle = {{[Host publication title missing]}}, keywords = {{CFD; Heat Transfer; PPC Engine; Injection Strategy; Gasoline Quality}}, language = {{eng}}, publisher = {{SAE}}, title = {{CFD Investigation on Injection Strategy and Gasoline Quality Impact on In-Cylinder Temperature Distribution and Heat Transfer in PPC}}, url = {{http://dx.doi.org/10.4271/2013-24-0009}}, doi = {{10.4271/2013-24-0009}}, year = {{2013}}, }