The Effect of Fuel Temperature on the Ethanol Direct Injection Spray Characteristics of a Multi-hole Injector

2014 ◽  
Vol 7 (3) ◽  
pp. 792-802 ◽  
Author(s):  
Yuhan Huang ◽  
Sheng Huang ◽  
Peng Deng ◽  
Ronghua Huang ◽  
Guang Hong
Keyword(s):  
Direct Injection ◽  
Fuel Temperature ◽  
Spray Characteristics

SPRAY CHARACTERISTICS IN A DIRECT-INJECTION DIESEL ENGINE

1996 ◽  
Vol 6 (1) ◽  
pp. 95-109 ◽  
Author(s):  
H. C. Yang ◽  
Hong Sun Ryou ◽  
Y. T. Jeong ◽  
Young Ki Choi
Keyword(s):  
Diesel Engine ◽  
Direct Injection ◽  
Spray Characteristics ◽  
Direct Injection Diesel Engine

Microscopic Spray Characteristics of Biodiesels Derived From Karanja, Jatropha, and Waste Cooking Oils

2020 ◽  
Vol 142 (12) ◽  
Author(s):  
Chetankumar Patel ◽  
Joonsik Hwang ◽  
Choongsik Bae ◽  
Rashmi A. Agarwal ◽  
Avinash Kumar Agarwal
Keyword(s):  
Fuel Injection ◽  
Direct Injection ◽  
Injection Pressure ◽  
Axial Direction ◽  
Waste Cooking Oil ◽  
Injection System ◽  
Ambient Atmosphere ◽  
Ambient Conditions ◽  
Spray Characteristics ◽  
Spray Droplets

Abstract This study aims to assess the microscopic characteristics of Jatropha, Karanja, and Waste cooking oil-based biodiesels vis-a-vis conventional diesel under different ambient conditions in order to understand the in-cylinder processes, while using biodiesels produced from different feedstocks in the compression ignition engines. All test-fuels were injected in ambient atmosphere using a common-rail direct injection (CRDI) fuel injection system at a fuel injection pressure (FIP) of 40 MPa. Microscopic spray characteristics were measured using phase Doppler interferometer (PDI) in the axial direction of the spray at a distance of 60–90 mm downstream of the nozzle and at 0 to 3-mm distance from the central axis in the radial direction. All biodiesels exhibited relatively larger Sauter mean diameter (SMD) of the spray droplets and higher droplet velocities compared to baseline mineral diesel, possibly due to relatively higher fuel viscosity and surface tension of biodiesels. It was also observed that SMD of the spray droplets decreased with increasing distance in the radial and axial directions and the same trend was observed for all test-fuels.

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