Distribution of Vapor Concentration in a Diesel Spray Impinging on a Flat Wall by Means of Exciplex Fluorescence Method -In Case of High Injection Pressure-

Paper #:
  • 972916

Published:
  • 1997-10-01
Citation:
Fujimoto, H., Kusano, S., and Senda, J., "Distribution of Vapor Concentration in a Diesel Spray Impinging on a Flat Wall by Means of Exciplex Fluorescence Method -In Case of High Injection Pressure-," SAE Technical Paper 972916, 1997, https://doi.org/10.4271/972916.
Pages:
14
Abstract:
Diesel sprays injected into a combustion chamber of a small sized high-speed CI engine impinge surely on a piston surface and a cylinder wall. As a consequence, their vaporization, mixture formation and combustion processes are affected by impingement phenomena. And the other important factors affecting on the processes is the injection pressure. Then, the distribution of the vapor concentration in a single diesel spray impinging on a flat and hot wall was experimented by the exciplex fluorescence method, as a simple case. The injection pressure was varied in the range from 55 MPa to 120 MPa. It is found that the distribution of the vapor concentration in this case is much leaner than that in the case of the low injection pressure of 17.8MPa.
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