Development of a Reduced Biodiesel Surrogate Fuel Model for Multi-Dimensional Computational Fluid Dynamic Simulations

International Conference on Sustainable Energy and Green Technology 2018

能源学;生态环境科学

Poon, H.M.^1^2^4 ; Ng, H.K.^2 ; Gan, S.^3 ; Chong, W.T.^4

Dept. Mechanical and Materials Engineering, UTAR Sg Long, Malaysia^1

Dept. Mechanical, Materials and Manufacturing Engineering, University of Nottingham, Malaysia^2

Dept. Chemical and Environmental Engineering, University of Nottingham, Malaysia^3

Dept. Mechanical Engineering, University of Malaya, Malaysia^4

关键词: Constant-volume combustion vessels;    Jet stirred reactor;    Kinetic calculations;    Multi dimensional;    Palm methyl esters;    Soot volume fraction;    Soy methyl esters;    Two-dimensional simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/268/1/012080/pdf
DOI  :  10.1088/1755-1315/268/1/012080

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This work reports the development of a reduced biodiesel surrogate fuel model for multi-dimensional Computational Fluid Dynamic simulations. The model is derived using an integrated kinetic mechanism reduction scheme and the final chemistry comprises only 83 species. The model is well validated in zero-dimensional chemical kinetic calculations under a wide range of auto-ignition and jet-stirred reactor conditions. The fidelity of the model is also further assessed in two-dimensional simulations of a constant-volume combustion vessel with respect to the experimental results of soy-methyl ester combustion. The results obtained reveal that ignition delay, lift-off lengths and soot volume fractions are reasonably well replicated by the reduced model. Furthermore, the compositions of the reduced model are varied according to the saturation/unsaturation levels of various biodiesel feed-stocks, such as palm-methyl ester and sunflower-methyl ester. In this work, it is demonstrated that the reduced model can potentially be used as a universal surrogate fuel model to predict the reactivity of biodiesel feed-stocks with low degree of saturation (≤30%) in both kinetic and fuel spray simulations.