研究目的
To investigate the flame temperature of the atomizer under different multi circular jet (MCJ) geometry of the plates using image analysis technique.
研究成果
Higher equivalent ratio results in higher flame temperature. The geometry of the plate significantly impacts the combustion process. The MCJ 1 (8 holes with 2 mm diameter) produces higher flame temperature compared to other plates. The regular shapes of jet holes give higher flame temperature compared to irregular jet holes due to the fuel air mixing characteristics inside the chamber.
研究不足
The study is limited to the use of diesel oil as fuel and the specific geometries of the multi-circular jet plates. The emissivity value in the IR camera was set based on previous work, which may not be accurate for all conditions.
1：Experimental Design and Method Selection:
The experiment used a closed chamber with thermography methods to determine the flame temperature from the air-assisted atomizer. Three different geometries of multi-circular jet plates were investigated.
2：Sample Selection and Data Sources:
Diesel oil was used as fuel. The flame development was captured with color images by thermal imaging camera FLIR T-640 at 4 seconds every interval.
3：List of Experimental Equipment and Materials:
Air compressor, fuel pump, DC voltage regulator, FLIR thermal camera, multi-circular jet plates.
4：Experimental Procedures and Operational Workflow:
The atomizer was equipped with an air compressor to supply the primary air at 1 bar. The pump was used to supply fuel to the atomizer. The investigation was conducted at five equivalence ratios from 0.6 to 1.
5：6 to Data Analysis Methods:
4.
5. Data Analysis Methods: The temperature obtained from the IR camera was analyzed. The emissivity value in the IR camera was set at 0.85.
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