2D temperature field measurement in a direct-injection engine using LIF technology

Yongfeng Liu; Hongsen Tian; Jianwei Yang; Jianmin Sun; Aihua Zhu

doi:10.1117/12.903589

15 November 2011 2D temperature field measurement in a direct-injection engine using LIF technology

Yongfeng Liu, Hongsen Tian, Jianwei Yang, Jianmin Sun, Aihua Zhu

Proceedings Volume 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation; 832102 (2011) https://doi.org/10.1117/12.903589
Event: Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 2011, Yunnan, China

Abstract

A new multi-spectral detection strategy for temperature laser- induced- fluorescence (LIF) 2-D imaging measurements is reported for high pressure flames in high-speed diesel engine. Schematic of the experimental set-up is outlined and the experimental data on the diesel engine is summarized. Experiment injection system is a third generation Bosch high-pressure common rail featuring a maximum pressure of 160MPa. The injector is equipped with a six-hole nozzle, where each hole has a diameter of 0.124 mm. and slightly offset to the center of the cylinder axis to allow a better cooling of the narrow bridge between the exhaust valves. The measurement system includes a blower, which supplied the intake flow rate, and a prototype single-valve direct injection diesel engine head modified to lay down the swirled-type injector. 14-bit digital CCD cameras are employed to achieve a greater level of accuracy in comparison to the results of previous measurements. The temperature field spatial distributions in the cylinder for different crank angle degrees are carried out in a single direct-injection diesel engine.

Citation Download Citation

Yongfeng Liu, Hongsen Tian, Jianwei Yang, Jianmin Sun, and Aihua Zhu "2D temperature field measurement in a direct-injection engine using LIF technology", Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 832102 (15 November 2011); https://doi.org/10.1117/12.903589

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KEYWORDS

Laser induced fluorescence

Temperature metrology

Head

CCD cameras

Atmospheric particles

Combustion

Convection

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