TY - JOUR ID - 351 TI - Effect of the temperature difference between gas and organic dust on propagating spherical flames JO - Journal of Particle Science and Technology JA - JPST LA - en SN - 2423-4087 AU - Vahdat Azad, Abazar AU - Bidabadi, Mehdi AD - Department of Mechanical Engineering, Faculty of Engineering, Islamic Azad University, South Tehran Branch, Tehran, Iran AD - School of Mechanical Engineering, Iran University of Science and Technology Narmak, Tehran, 16846, Iran Y1 - 2016 PY - 2016 VL - 2 IS - 3 SP - 151 EP - 161 KW - Combustion KW - Spherical Flame KW - Analytical Method KW - Dusty Flame KW - Coal Dust DO - 10.22104/jpst.2016.351 N2 - A new analytical study performed to investigate the effect of the temperature difference between gas and particle in propagation of the spherical flames. The combustible system is containing uniformly distributed volatile fuel particles in an oxidizing gas (Air) mixture. The model includes evaporation of volatile matter of dust particles to known gaseous fuel (methane) and the single-stage reaction of gas-phase combustion. The structure of the flame is composed of a preheat zone, reaction zone, and convection zone. The study is within the framework of large activation energy and quasi-steady assumptions. The validity of theoretical prediction is confirmed by data presented in other literature including burning velocity. The obtained results illustrate the effects of the above parameter on the variations of the flame speed, temperature, particle mass fraction, flame temperature, concentration, and burning velocity for gas and particle. UR - https://jpst.irost.ir/article_351.html L1 - https://jpst.irost.ir/article_351_e34b85d23308e921e0572e418fad941d.pdf ER -