Calculating Drying Parameters of Fluidized Bed Dryer Operation for Rice and Corn
Keywords:fluidized bed dryer, corn, paddy, simulator, moisture ratio, drying time, drying rate
AbstractThis study was carried out to develop a simulation model that can estimate the basic drying parameters of a fluidized bed dryer such as drying time, moisture reduction rate and provide rough calculation of energy required and fuel consumption to dry a given volume of grains. Results shows that drying set up of 1400C drying temperature, bed height of 0.04m and an airflow rate of 2.3 m/s for paddy can provide lesser drying time and higher drying rate with a value of 164 minutes and 68.07 kg/hr, respectively. While for corn, a set-up of 1700C drying temperature, bed height of 0.1m and the fixed airflow rate of 2.7 m/s can deliver lesser drying time and higher drying rate with a value of 45 minutes and 369.9 kg/hr, respectively. The simulation results also showed that using a higher temperature, higher airflow and lower bed height gives a lesser drying time which also leads to higher drying rate. In terms of drying energy and fuel consumption, the results showed that the higher the drying temperature, the higher the energy and fuel consumption is required.
Vijaya G.S. Raghavan And Venkatesh Sosle. January 2007. Grain Drying.
Pontawe, R.J., R.B. Villacorte and R.C. Martinez.2016 Pilot-Scale Fluidized Bed Drying System for Complete Drying of Paddy. PHilMech Technical Bulletin Vol. 6 No. 1. Philippine Center for Postharvest Development and Mechanization. Science City of Muñoz, Nueva Ecija. 26 pp.
Siebenmorgen, Terry & Truitt, Erin & Meullenet, Jf. (2006). Quality of Long-Grain Rice Dried by High-Temperature Fluidization. 10.13031/2013.21468.
Nguyen Van Hung, Romualdo Martinez, Tran Van Tuan & Martin Gummert. 2019 Development and Verification of a Simulation Model for Paddy Drying with Different Flatbed Dryers, Plant Production Science, 22:1, 119-130, Doi: 10.1080/1343943x.2018.1518723
Tadeusz Kudra, Radu Platon And Philippe Navarri. 2009. Excel-Based Tool to Analyse Energy Performance of Convective Dryers.
Alonso, J. and Picado, A. 2019. Simulation of A Continuous Fluidised Bed Dryer for Shelled Corn. Nexo Revista Científica / Vol. 34, No. 03 (Especial), pp. 58-70
Rakesh Verma, H.K.Paliwal. 2020. Simulation and Analysis of Plug Flow Fluidized Bed Dryer. International Journal of Innovative Technology and Exploring Engineering (IJITEE) ISSN: 2278-3075, Volume-9 Issue-7
Jayas, Digvir & Cenkowski, Stefan. (2006). 24 Grain Property Values and Their Measurement. Handbook of Industrial Drying, Fourth Edition. 10.1201/9781420017618.ch24.
Soponronnarit, Somchart (1999) Fluidised-Bed Paddy Drying. Science Asia
Soponronnarit, S., Kittiporn, K., Prachayawarakorn, S. Appropriate Operating Parameters for Fluidized Bed Corn Drying
Philippine Agricultural Engineering Standard, 2015. PNS-PAES-202-2015-Agricultural Machinery Heated Air Mechanical Grain Dryer Methods of Test.pdf