STUDI ANALISIS EFISIENSI ENERGI DAN TEKNO EKONOMI PENGERINGAN BUTIRAN MULTI TAHAP
Abstract
This paper concerns on analysis of energy in drying operation, because energy is crucial and determines process efficiency throughout. Further, techno-economy is also studied for drying agricultural product, such as paddy, in a multi-stage deep-bed dryer with focussing in study two-stage one. Thermal and drying efficiency have been evaluated from experiment data. Moreover, the techno-economy in view of energy consumption for drying operation is also considered . The analysis shows that the increasing of bed height for constant drying air temperature will significantly increase thermal and drying efficiency as well as energy consumption for dryer operation. Further, thermal efficiency, drying efficiency and energy consumption decreases with increasing the inlet drying air temperature which in turn reducing of drying cost operation. The study shows that the two-stage deep-bed dryer have higher thermal and drying efficiency and lower energy consumption compared to one-stage dryer.
References
Cook, E.M., dan Dumont, H.D., (1988),"New Ideas to Improve Dryer Performance", Chemical Engineering, May 9, hal. 71-78.
Foster, (1973), "Drying Methods-Drying Principles and General Considerations", http://www.fao.org/inpho/vlibrary/t1838e/T183 8E0u.htm
Hellevang, K.J., (1994), "Grain Drying", http://ndsuext.nodak.edu/extpubs/plantsci/ smgrains/ae701-1.htm.
Meiners, E.R., (1990),"Process and Apparatus for Drying Grain", US Patent #5,142,794.
Molnar, K., (1995), "Experimental Techniques in Drying" , dalam Handbook of Industrial Drying, A.S. Mujumdar (ed.), Vol. 1, Marcel Dekker, Inc., New York, hal. 41-79.
Mujumdar, A.S., dan A.S. Menon, (1995), "Drying of Solids: Principles, Classification, and Selection of Dryers" , dalam Handbook of Industrial Drying, A.S. Mujumdar (ed.), Vol. 1, Marcel Dekker, Inc., New York, hal. 1-39.
Oliveira, C.A., dan S.C.S. Rocha, (2000), "Drying of Beans Intermitten Spouted Bed Regime : Analysis of Energy Efficiency of The Drying Process" , Proc. of International Drying Symposium (IDS 2000), Netherlands, 28 - 31 August.
Pan, Y.K., J.G. Li, L.J. Zhao, W.H. Ye, A.S. Mujumdar, dan T. Kudra, (2000), "Drying of Dilute Suspension in a Vibrated Fluidized Bed of Inert Particles" , Proc. of International Drying Symposium (IDS 2000), Netherlands, 28 - 31 August.
Sitompul, J.P., dan Istadi, (2000), "Deep Bed Drying of Corn in A Large Diameter Column: Modelling and Experimental Studies", Proc. Of International Drying Symposium (IDS 2000), Netherlands, 28-31 August, Paper No.224.
Sitompul, J.P., S. Sumardiono, M.W., Sariyanto dan H.A., Wicaksono, (2000), " Studi Analisis Efisiensi Energi Terhadap Pengeringan Butiran dalam Tipe Deep-Bed Dua Tahap" , Pros. Seminar Nasional Soehadi Rekso Wardoyo 2000, Bandung, 3-4 November.
Soponronnarit, S., dan S. Prachayawarakorn, (1994), "Optimum Strategy For Fluidized Bed Paddy Dryer", Jurnal Drying Technology, Vol. 12(7), hal. 1667-1686.
Strumillo, C., Jones, L. Peter, dan Zylla, Romuold, (1995), "Energy Aspects in Drying" , dalam Handbook of Industrial Drying, A.S. Mujumdar (ed.), Vol. 2, Marcel Dekker, Inc., New York, hal. 1241-1274.
