Browse > Article
http://dx.doi.org/10.5307/JBE.2010.35.6.401

Circulating Concurrent-flow Drying Simulation of Rapeseed  

Han, Jae-Woong (Dept. of Bio-industry Mechanical Engineering, Kongju National University)
Keum, Dong-Hyuk (Dept. of Bio-Mechatronic Engineering SungKyunKwan University)
Kim, Woong (Dept. of Bio-industry Mechanical Engineering, Kongju National University)
Duc, Le Anh (NongLam University)
Cho, Sung-Ho (Dept. of Bio-Mechatronic Engineering SungKyunKwan University)
Kim, Hoon (Korea Food Research Institute)
Publication Information
Journal of Biosystems Engineering / v.35, no.6, 2010 , pp. 401-407 More about this Journal
Abstract
In this study, computer simulations were conducted to assess the use of a circulating concurrent-flow dryer for rapeseed drying and to determined the effect of this drying method on the germination ratio of rapeseed after the drying process was complete. The simultaneous heat and mass transfer between air and rapeseed in a concurrent-flow dryer was examined by simulation. The drying simulation was based on several parameters with sequent time series. Equations concerning air psychrometrics, physical properties, thermal properties, equilibrium moisture content, thin layer drying of rapeseed, etc. were all combined to solve the simulation models. Based on energy and mass transfer in the concurrent-flow drying model, a simulation program for the circulating concurrent-flow rapeseed dryer was built along with a detailed description of the mathematical solution to the model. A pilot scale circulating concurrent-flow dryer(200 kg/batch) was used to verify the fitness of the simulation program. A comparison between the experimental data and the model predicted results was presented and discussed. The drying parameters and germination ratio were analyzed and the accuracy of the simulation program was evaluated. The simulation program proved to be reliable and was shown to be a convenient tool for predicting rapeseed drying and germination ratio of rapeseed in a concurrent-flow dryer.
Keywords
Concurrent-flow; Drying model; Drying rate; Energy consumption; Germination ratio;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Felipe, C. A. S. and M. A. S. Barrozo. 2003. Drying of soybean seeds in a concurrent moving bed: heat and mass transfer and quality analysis. Drying Technology 21(3):439-456.   DOI
2 Han, J. W., D. H. Keum., J. G. Han., H. Kim and S. J. Hong. 2006. Development of rice circulating concurrent-flow dryer (I) - Performance test of pilot scale dryer. Korean Society for Agricultural Machinery 31(4):349-354. (In Korean)   과학기술학회마을   DOI
3 Hong, S. J., L. A. Duc., J. W. Han., H. Kim., Y. H. Kim and D. H. Keum. 2008. Physical properties of rapeseed (II). Journal of Biosystems Engineering 33(3):173-178. (In Korean)   DOI
4 Keum, D. H. 1986. Data and equations for the analysis of rough rice drying. Korean Society for Agricultural Machinery 11(2):92-102. (In Korean)
5 Kim, Y. H., J. W. Han and D. H. Keum. 2008. Desorption EMC Models for Rapeseed. Journal of Biosystems Engineering 32(6):403-407. (In Korean)   DOI
6 Thompson, T. L., R. M. Peart and G. H. Foster. 1968. Mathematical simulation of corn drying - a new model. Transactions of the ASAE 24(3):582-586.
7 American Society of Agricultural Engineers S352.2. 2004. Moisture measurement-Unground grain and seeds. ASAE standards 51st Edition 582-583.
8 Association of Official Seed Analysis. 1993. Rules for testing seeds. Journal of Seed Technology 16:1-113.
9 Bakker-Arkema, F. W., D. B. Brooker and C. W. Hall. 1972. Comparative evaluation of cross-flow and concurrent flow grain dryers. ASAE Paper No 72-849.
10 Cassells, J. A., L. P. Caddick., J. R. Green and R. Reuss. 2003. Isotherms for Australian canola varieties. Proceedings of the Australian Postharvest Technical Conference 59-63.
11 Chapre, S. C. 2005. Applied numerical methods with Matlab for engineers and scientists. McGraw-Hill International Inc., NewYork.
12 Duc, L. A., D. H. Keum and J. W. Han. 2009. The thin layer drying characteristics of rapeseed(Brassica napus L.). Accepted for publishing by Journal of Stored Products Research Paper No. SPR-D-08-00101.
13 Fausett, L. V. 1999. Applied numerical analysis using Matlab. Prentice Hall Inc., Upper Saddle River, New Jersey 07458.
14 Duc, L. A., J. W. Han., S. J. Hong., H. S. Choi., Y. H. Kim and D. H. Keum. 2008. Physical properties of rapeseed (I). Journal of Biosystems Engineering 33(2):101-105. (In Korean)   과학기술학회마을   DOI
15 Duc, L. A and J. W. Han. 2009. The effects of drying conditions on the germination properties of rapeseed. Journal of Biosystems Engineering 34(1):30-36.   DOI