An Investigation of Heat Transfer in Vertical Shaft Kiln Process of Cement Manufacture: Part I - Convection
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 7
Abstract
Packed bed heat transfer associated with the black meal vertical shaft kiln (VSK) process of cement manufacture was studied using varying feed sizes of the raw material and air flow rates using an experimental prototype. A computer controlled data acquisition system (DAS) was used to collect the experimental data on temperature across the kiln. Data was compared with available convective heat transfer models and it was observed that Mc Adams model best represents the studied system. The convective heat transfer studies indicated the optimum reaction front propagation speed for the maintenance of required clinkerization temperature. The air flow rate is suggested as 3000 litre per minute for a nodule size of ~ 9 mm diameter in the packed bed. The second part of the communication will be on the combined effect of conduction and radiation heat transfer in the system.
Authors and Affiliations
Dipankar Neog, P G Rao, M L Das, Pranab Barkakati
Keywords
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