Performance improvement of continuous horizontal fluidised bed dryer based on computational fluid dynamics

Handayani, Sri Utami; Yohana, Eflita; Tauviqirrahman, Mohammad; Rahman, None Aldian Ghani; Yulianto, Mohamad Endy; Choi, Kwang-Hwan

doi:10.1016/j.rineng.2023.100972

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…Computer-aided design using CFD helps clarify the turbulence and effective thermal conductivity behavior in dryer equipment, and several works have shown the strong relationship between humidity removal and vigorous eddy viscosity to improve the mass transfer in the food boundary layer (Handayani et al 2023). However, it is still necessary to correlate the findings in this theoretical research with empirical data, where the dryer design parameters can be modified experimentally, and the local humidity can be measured.…”

Section: Resultsmentioning

confidence: 99%

CFD-response surface methodology to optimize the effective thermal conductivity and homogeneity in tray dryer

Lobatón-García

López-Mejía

Cruz-Guayacundo

2023

Rev. U.D.C.A Act. & Div. Cient.

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Tray dryers are usually designed with simplistic scaling rules that do not account for all the transport phenomena associated with drying. The use of computational fluid dynamics coupled with response surface methodology can be a powerful tool to evaluate how different tray dryer design parameters affect the drying process. In this work, two tray dryers, one with a lateral air inlet and another with a bottom air inlet, were parameterized for the position of the air inlet, the dryer length, and the distance between the trays. A central composite design was chosen to determine the sample points, and the average turbulence viscosity and effective thermal conductivity as well as the homogeneity index were calculated. With these values, a response surface curve was constructed. The effective thermal conductivity and its homogeneity index were improved (80 % and 11 %, respectively) with an increased distance between trays and an air inlet located in the middle of the inlet face in the best scenario. In addition, the reductions in effective thermal conductivity outcomes were minimal due to the scale-up process in terms of the dryer length.

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Section: Resultsmentioning

confidence: 99%