Experimental investigation of heat transfer for diesel spray impingement on a high temperature wall.

ABSTRACT: In this paper, the heat transfer characteristics of spray-wall impingement on a high temperature wall were studied by using a transient thermocouple and a one-dimensional finite-difference conduction model to obtain variations of wall temperature and heat flux. Results showed that increasing the injection pressure and decreasing the ambient temperature both caused an increase in surface heat flux and heat transfer coefficient. However, with the increase of the initial surface temperature from 200 to 600 °C, the surface heat flux and heat transfer coefficient first increased and then decreased, and reached the maximum at about 520 °C and 390 °C respectively, which was due to the change of heat transfer regime on the wall. The contribution of experimental factors descended in the order of in

SUBMITTER: Guo Z 

PROVIDER: S-EPMC9042839 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature