An Experimental Study on Diesel Fuel Droplets Coupling Evaporation

Abstract:

With the continuous improvement of power density,in the process of diesel fuel evaporation in cylinder, the interaction between droplets continues to grow. In order to study the mutual influence in the process of droplets evaporation, the evaporation phenomenas of single droplet, double-droplet and multi-droplet were studied experimentally in this paper. Firstly the influence of background temperature on single droplet evaporation rate was contrasted to verify the reasonableness of the experimental system. And then the influence of number of droplets and distance between droplets was compared and elicited the value of evaporation rate for each experimental condition. It can be found that when the number of droplets increases, the evaporation rate of droplets decreases; when the distance between droplets decreases, the evaporation rate of droplets also reduced.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 3068-3076
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.3068
• Online since: November 2011
• Authors: Yu Po Ma, Xiang Rong Li, Xiang Yuan Wang, Fu Shui Liu
• Keywords: Diesel Fuel, Droplet, Evaporation Rate, Experiment

References

[1] T. Lim, S. Han, J. Chung, J. T. Chung, S. Ko, Costas P. Grigoropoulos. Experimental study on spreading and evaporation of inkjet printed pico-liter droplet on a heated substrate. International Journal of Heat and Mass Transfer 52 (2009) 431-441.

DOI: 10.1016/j.ijheatmasstransfer.2008.05.028

[2] L. A. Dombrovsky, S. S. Sazhin. A SIMPLIFIED NON-ISOTHERMAL MODEL FOR DROPLET HEATING AND EVAPORATION. Int. Comm. Heat Mass Transfer, Vol. 30, No. 6, pp.787-796, (2003).

DOI: 10.1016/s0735-1933(03)00126-x

[3] R. Alexandre, A. Pham Ngoc Dinh, A. Simon, Nguyen Thanh Long, A mathematical droplet inside an infinite vessel. Nonlinear Analysis and Applications, vol. 1, 2003, model for the evaporation of a liquid fuel Kluwcr Publishing Company, pp.117-140.

[4] Miller, R. S., Harstad, K., and Bellan, J., 1998, Evaluation of Equilibrium and Non-Equilibrium Evaporation Models for Many-Droplet Gas-Liquid Flow Simulations, Int. J. Multiphase Flow, 24, pp.1025-1055.

DOI: 10.1016/s0301-9322(98)00028-7

[5] S. S. Sazhin,W. A. Abdelghaffar, E. M. Sazhina, M. R. Heikal. Models for droplet transient heating: Effects on droplet evaporation, ignition, and break-up. International Journal of Thermal Sciences 44 (2005) 610-622.

DOI: 10.1016/j.ijthermalsci.2005.02.004

[6] D. Katoshevski, T. Shakked, S. S. Sazhin, C. Crua, M. R. Heikal. Grouping and trapping of evaporating droplets in an oscillating gas flow. International Journal of Hcat and Fluid Flow 29 (2008) 415-426.

DOI: 10.1016/j.ijheatfluidflow.2007.10.003

[7] R. S Miller, K. Harstad, J. Bellan. Evaluation models equilibrium and non-equilibrium evaporation many-droplet gas-liquid flow simulations. International Journal of Multiphase Flow 24 (1998)  1025-1055.

DOI: 10.1016/s0301-9322(98)00028-7

[8] J. S. Chin, Lefebvre A H. Steady state evaporation characteristics of hydrocarbon fuel drops. AIAA Paper 1983(4): 82～1176.

DOI: 10.2514/3.8264

[9] HIROYASU H, ARAI M, HASHIZAKI K, MATUE T. EXPERIMENTAL-STUDY ON EVAPORATION AND COMBUSTION OF SINGLE COAL-SLURRY DROPLETS-(BEHAVIOR ON A HOT SURFACE IN AN ELEVATED-TEMPERATURE ENVIRONMENT). JSME INTERNATIONAL JOURNAL SERIES II-FLUIDS ENGINEERING HEAT TRANSFER POWER COMBUSTION THERMOPHYSICAL PROPERTIES, 1989, Vol 32, Issue 2, pp: 265-272.

DOI: 10.1299/jsmeb1988.32.2_265

[10] H. -I. Jia, I. High Pressure Droplet Vaporization. II. Laminar Natural Convection Heat Transfer over a Sphere, New Brunswick University, New Jersey, (1993).