(633g) Quantitative analysis of heat transfer in a rotary drum
This work focuses on understanding the heat transfer mechanism in the granular bed inside a rotary drum, one of the most commonly used process equipment. Experiments are performed using silica particles to investigate the granular flow and heat transfer mechanism inside a stainless-steel rotary drum. All the modes of heat transfer are quantified under varying operation conditions to establish a strong understanding of the heat transport. For this, both experiments and CFD-DEM (using MFIX-DEM, an open source multi-solver suite) simulation techniques are used to analyze the thermal behavior. The experimental setup is designed to handle up to 10000C, making it possible to study all modes of heat transfer via conduction, convection, and radiation. Omega thermocouples and a mid-wave infrared (MWIR) camera were used to record the temperature profile. The digital image analysis (DIA) and the particle image velocimetry (PIV) are combined with IR thermography (DIA/PIV/IR technique ) to obtain combined quantitative hydrodynamic and thermal data sets.
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