Asian Journal of Scientific Research1992-14542077-2076Asian Network for Scientific Information10.3923/ajsr.2018.62.83JadingAbadi BintoroNursigit SutiarsoLilik KaryadiJoko Nugroho Wahyu 12018111Background and Objective: Recirculating cyclones and cyclones of the material output are some of the vital parts of the drying machine known as Pneumatic Conveying Recirculated Dryer (PCRD) for sago starch drying. This research was intended to undertake simulation of air temperature distributions in dryers and analyze performance of recirculating cyclones and cyclones of the material output. Materials and Methods: The analytical and simulation methods used are Computational Fluid Dynamics (CFD), as well as mathematical and statistical analyses. Computational Fluid Dynamics simulation was using the software Fluid Flow (Fluent) available in the Ansys Workbench package (ver. 15). The variable variations are the air temperature and velocity of dryers and the dimensions of recirculating cyclones. Results: The temperature distributions inside the recirculating cyclones and cyclones of the material output were well distributed with low error values, namely by 2.044 and 4.594%. The mathematical and statistical analyses showed that the means of changes in the moisture content and effectiveness of the recirculating cyclones and cyclones of the material output were equal to 8.93% wb and 89.61%, respectively. Almost all the variables of variation significantly affected the value of the moisture content and the effectiveness, except the temperature variable (Tu3). Conclusion: This study indicates that the simulation results are close to observed values or the real condition of the PCRD machine. Thus the designs of the recirculating cyclones and cyclones of the material output are feasible to be implemented for sago starch drying.]]>Borde, I. and A. Levy,20152015pp: 381-392pp: 381-392Korn, O.,20011919251937Tolmac, D., S. Prvulovic and L. Radovanovic,2008364549Mezhericher, M., A. Levy and I. Borde,2010203371383El-Behery, S.M., W.A. El-Askary, M.H. Hamed and K.A. Ibrahim,20133113741387Jamaleddine, T.J. and M.B. Ray,201129308322Bhattarai, S., J.H. Oh, S.H. Euh, D.H. Kim and L. Yu,20143211421156Caroko, N. and S. Suyitno,200811199206, (In Indonesian)Sylvia, N., Yunardi, Elwina, Wusnah and Y. Bindar,20142014pp: 812Wasilewski, M. and J. Duda,201367990994Jadhav, M.R.,20143247252Jading, A., N. Bintoro, L. Sutiarso and J.N.W. Karyadi,20172017Anonymous,2013Tuakia, F.,20081st Edn.,Pages: 332(In Indonesian)Pages: 332(In Indonesian)Singh, R.P. and D.R. Heldman,20094th Edn.,Pages: 864Pages: 864Kornev, N.,20132013Yani, A., H. Suhardiyanto, R. Hasbullah and B.P. Purwanto,200730218228, (In Indonesian)Anisum, N. Bintoro and S. Goenadi,2016366470, (In Indonesian)AOAC,200516th Edn.,Nimmol, C. and S. Devahastin,20103022042212Syaiful, M. and Hargono,200912195202, (In Indonesian)BSN.,20082008