سال انتشار: ۱۳۸۷

محل انتشار: دومین کنگره بین المللی علوم و فناوری نانو

تعداد صفحات: ۲

نویسنده(ها):

m Bidabadi – Department of Mechanical Engineering; Iran University of Science and Technology
s Montazerinejad – sara_montazeri@mecheng.iust..ac.ir
m Jadidi, –
a Rahbari –

چکیده:

Knowledge of organic dust particles combustion needs to be improved and developed both in experimental and theoretical approach due to its importance in science and engineering specially in critical issues of fuel and energy and explosion hazard. Some researches have been carried out according the crucial impact of modeling the dust particles. To investigate the burning velocity of laminar flames of lycopodium Kaesche-krische and Zehr [1] fed lycopodium into the lower end of a vertical 2 cm diameter tube. Mason and Wilson [2], who also studied the burning velocity of stationary flames of lycopodium. A valuable model of the lycopodium particles combustion was developed by Seshadri et al. [3] with approximations introduced were that heat transfer by radiation was neglected. Proust [4] described other experimental studies of laminar burning velocities and maximum flame temperature in clouds of starch, lycopodium and sulfur in air.In this paper, the structure of premixed flames propagating in a uniform cloud of fuel particles is considered. A general treatment of flame propagation supported by volatile fuel particulates should consider both radiative and molecular transport mechanisms. Hence, the radiation term is added to the previous model [3] and its effects on the combustion of fine lycopodium particles are investigated. Radiative heat transfer plays an important role in the flame propagation. Consequently, this analysis shows that radiative heat transfer is significant in the burning velocity.