Hai-feng LIU, Zhen-yang MING, Ming-sheng WEN, Yan-qing CUI, Wei LIU, Ming-fa YAO. Study on the Influence of Fuel Sensitivity on the Spectral Characteristics of Partially Premixed Combustion in Internal Combustion Engines[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 2999
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 10, 2999 (2021)
![Schematic diagram of optical engine test[11]](/richHtml/gpxygpfx/2021/41/10/2999/img_1.png)
Fig. 1. Schematic diagram of optical engine test[11]
Fig. 2. Schematic of structure and view field of the combustion chamber
Fig. 3. Effect of high and low sensitivity (S =0, 6) fuel on in-cylinder pressure, heat release rate and flame development at -25°CA ATDC injection
(a): Cylinder pressure heat release rate curve at -25°CA ATDC injection; (b):S =0; (c): S =6
(a): Cylinder pressure heat release rate curve at -25°CA ATDC injection; (b):
Fig. 4. Effect of high and low sensitivity (S =0, 6) fuel on in-cylinder pressure, heat release rate and flame development at -15°CA ATDC fuel injection
(a) In-cylinder pressure and heat release rate curve During Fuel Injection at -15°CA ATDC; (b):S =0; (c): S =6
(a) In-cylinder pressure and heat release rate curve During Fuel Injection at -15°CA ATDC; (b):
Fig. 5. Effect of high and low sensitivity (S =0, 6) fuel on in-cylinder pressure, heat release rate and flame development at -5°CA ATDC injection
(a): In-cylinder pressure and heat release rate curve at -5°CA ATDC fuel injection; (b):S =0; (c): S =6
(a): In-cylinder pressure and heat release rate curve at -5°CA ATDC fuel injection; (b):
Fig. 6. Self-luminescence spectrum of high and low sensitivity fuels at -25°CA ATDC injection
(a):S =0; (b): S =6
(a):
Fig. 7. Pseudo-color diagram of high and low sensitivity fuel intensity at -25°CA ATDC injection
(a):S =0; (b): S =6
(a):
Fig. 8. Self-luminescence spectrum of high and low sensitivity fuels at -15°CA ATDC injection
(a):S =0; (b): S =6
(a):
Fig. 9. Pseudo-color diagram of high and low sensitivity fuel intensity at -15°CA ATDC injection
(a):S =0; (b): S =6
(a):
Fig. 10. Self-luminescence spectrum of high and low sensitivity fuels at -5°CA ATDC injection
(a):S =0; (b): S =6
(a):
Fig. 11. Pseudo-color diagram of high and low sensitivity fuel intensity at -5°CA ATDC injection
(a):S =0; (b): S =6
(a):
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Table 1. Optical-access engine specifications
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Table 3. Experimental conditions
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