Fluidized bed heat exchange capacity of Alumina, coal-char and bio-char solids

1st International Conference on Advances in Engineering and Technology

Mushtaq, F.^1 ; Ullah, I.^1,2 ; Khan, I.^1 ; Sami, S.K.^1 ; Alam, W.^1 ; Sadiq, M.^1 ; Tariq, Z.^1 ; Jaan, A.^1

Faculty of Engineering and Architecture, Department of Chemical Engineering, Balochistan University of Information Technology, Engineering and Management Sciences (BUITEMS), Airport Road, Baleli, Balochistan, Quetta, Pakistan^1

National Engineering Research, Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, China^2

关键词: Air inlet temperature;    Carbon solids;    Digital temperature sensor;    Fluidized bed heat exchanger;    Heat exchange capacities;    Heater surface temperature;    Superficial gas velocities;    Surface heat transfer coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/414/1/012003/pdf
DOI  :  10.1088/1757-899X/414/1/012003

来源: IOP

【 摘 要 】

Fluidized bed heat exchanger (FBHx) units have significant applications in various industrial processes. Heat transfer coefficient, pressure drop and superficial gas velocity are the most salient parameters used to characterize the behavior of solid particles in FBHx. This research identifies the pressure drop and surface heat transfer coefficient of Alumina, coal-char and bio-char solids in FBHx. The pressure drop and heat transfer coefficient were estimated at fixed bed height of 6cm by maintaining air flow rate of 8-100 Liters per minute (LPM). Digital temperature sensors are used to measure the bed temperature, air inlet temperature, and heater surface temperature. The results of this study suggest that the effects on pressure drop and surface heat transfer coefficient in FBHx are influenced by bed materials. Among the tested materials, pressure drop and heat transfer coefficient were found of order Alumina>coal-char>bio-char.