- Tytuł:
- The influence of the engine load on the value and temperature distribution in dry cylinder sleeve
- Autorzy:
- Gustof, P.
- Powiązania:
- https://bibliotekanauki.pl/articles/247576.pdf
- Data publikacji:
- 2010
- Wydawca:
- Instytut Techniczny Wojsk Lotniczych
- Tematy:
-
numerical techniques
engine load
cylinder sleeve
FEM - Opis:
- In this work the influence of the engine load on the value and temperature distribution in dry cylinder sleeve in turbocharged Diesel engine was definition. The computations were performed by means of the original two-zone combustion model, the boundary conditions of III kind and thefinite elements method (FEM) by using of COSMOS/M program. The characteristic surfaces of the cylinder sleeve were analyzed. The registered results of the computations get appointed on experimental measured parameters of the state of the engine work for the excess air number gamma = 1.66 and gamma = 3.08 and for the same engine speed n=2000 rpm. The computations were conductedfor initial 60 seconds of the engine work. On basis of received calculations it was determined that the increase of the engine load at the same engine speed causes the growth of the temperature of cylinder sleeve. Maximum temperature of the dry cylinder sleeve during 60 second of engine work carry out about 420 K for gamma, = 1.66 and 380 K for gamma = 3.08. Moreover the calculations show that top parts of the cylinder sleeve near of the mount flange heat up the most quickly and the temperature below the 3rd ring in outer dead centre of the piston is the lowest. The speed of increase temperature of dry cylinder sleeve is the largest in initial phase of warming up engine. After 10 seconds the average speed of increase temperature carries out about 8 K per second for larger load and about 5 K per second for lower load of the engine. Between 10 and 20 second the speed of increase temperature falls down and it starts stabilizing slowly.
- Źródło:
-
Journal of KONES; 2010, 17, 4; 177-183
1231-4005
2354-0133 - Pojawia się w:
- Journal of KONES
- Dostawca treści:
- Biblioteka Nauki
Artykuł