Abstract
Due to high temperature and less proper heat transfer, the material of piston crown in an engine of compressed natural gas with a direct injection system (CNGDI) may lead to high thermal stresses and fails to withstand high temperature and operate effectively. By insulating with thermal barrier coating (TBC) such as ceramic-based yttria partially stabilised zirconia (YPSZ), heat transfer to the piston might be reduced and lead to improvement of piston durability. Hence, in this research, YPSZ coating was utilised to differentiate with the uncoated piston crowns in terms of the ability to reduce thermal penetration to the piston. A detailed finite element analysis (FEA) was carried out to determine the location of hotspots via profiles distribution of thermal. In short, it was observed that hotspots were mainly concentrated at the piston bowl's rim. The heat flux for the YPSZ/NiCrAl-coated from FEA exhibited about 98% reduction compared to the uncoated piston crown.
| Original language | English |
|---|---|
| Title of host publication | Applied Mechanics and Materials |
| Pages | 281-286 |
| Number of pages | 6 |
| Volume | 393 |
| DOIs | |
| Publication status | Published - 2013 |
| Event | International Conference on Advances in Mechanical Engineering 2013, ICAME 2013 - Malacca Duration: 28 Aug 2013 → 29 Aug 2013 |
Publication series
| Name | Applied Mechanics and Materials |
|---|---|
| Volume | 393 |
| ISSN (Print) | 16609336 |
| ISSN (Electronic) | 16627482 |
Other
| Other | International Conference on Advances in Mechanical Engineering 2013, ICAME 2013 |
|---|---|
| City | Malacca |
| Period | 28/8/13 → 29/8/13 |
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Keywords
- Compressed natural gas direct injection
- Finite element analysis
- Hotspot
- Piston crown
- Thermal barrier coating
ASJC Scopus subject areas
- Engineering(all)
Cite this
Effect of extreme temperatures on coated piston crown for CNGDI engine. / Jalaludin, Helmisyah Ahmad; Abdullah, Shahrir; Ghazali, Mariyam Jameelah; Abdullah, Bulan; Abdullah, Nik Rosli.
Applied Mechanics and Materials. Vol. 393 2013. p. 281-286 (Applied Mechanics and Materials; Vol. 393).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Effect of extreme temperatures on coated piston crown for CNGDI engine
AU - Jalaludin, Helmisyah Ahmad
AU - Abdullah, Shahrir
AU - Ghazali, Mariyam Jameelah
AU - Abdullah, Bulan
AU - Abdullah, Nik Rosli
PY - 2013
Y1 - 2013
N2 - Due to high temperature and less proper heat transfer, the material of piston crown in an engine of compressed natural gas with a direct injection system (CNGDI) may lead to high thermal stresses and fails to withstand high temperature and operate effectively. By insulating with thermal barrier coating (TBC) such as ceramic-based yttria partially stabilised zirconia (YPSZ), heat transfer to the piston might be reduced and lead to improvement of piston durability. Hence, in this research, YPSZ coating was utilised to differentiate with the uncoated piston crowns in terms of the ability to reduce thermal penetration to the piston. A detailed finite element analysis (FEA) was carried out to determine the location of hotspots via profiles distribution of thermal. In short, it was observed that hotspots were mainly concentrated at the piston bowl's rim. The heat flux for the YPSZ/NiCrAl-coated from FEA exhibited about 98% reduction compared to the uncoated piston crown.
AB - Due to high temperature and less proper heat transfer, the material of piston crown in an engine of compressed natural gas with a direct injection system (CNGDI) may lead to high thermal stresses and fails to withstand high temperature and operate effectively. By insulating with thermal barrier coating (TBC) such as ceramic-based yttria partially stabilised zirconia (YPSZ), heat transfer to the piston might be reduced and lead to improvement of piston durability. Hence, in this research, YPSZ coating was utilised to differentiate with the uncoated piston crowns in terms of the ability to reduce thermal penetration to the piston. A detailed finite element analysis (FEA) was carried out to determine the location of hotspots via profiles distribution of thermal. In short, it was observed that hotspots were mainly concentrated at the piston bowl's rim. The heat flux for the YPSZ/NiCrAl-coated from FEA exhibited about 98% reduction compared to the uncoated piston crown.
KW - Compressed natural gas direct injection
KW - Finite element analysis
KW - Hotspot
KW - Piston crown
KW - Thermal barrier coating
UR - http://www.scopus.com/inward/record.url?scp=84886313741&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84886313741&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.393.281
DO - 10.4028/www.scientific.net/AMM.393.281
M3 - Conference contribution
SN - 9783037858233
VL - 393
T3 - Applied Mechanics and Materials
SP - 281
EP - 286
BT - Applied Mechanics and Materials
ER -