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Journal : IPTEK The Journal for Technology and Science

Effect of Particle Size Distribution on Ammonium Sulphate Dried in a Rotary Dryer Susianto, Susianto; Altway, Ali; Kuswandi, Kuswandi; Margono, Margono
IPTEK The Journal for Technology and Science Vol 21, No 3 (2010)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v21i3.37

Abstract

The aim of this work is to study theoretically, by mathematical model development, the effect of particle size distribution on the performance of rotary dryer to dry ammonium sulphate fertilizer assuming plug flow with axial dispersion pattern (PFDA model) for solid particle flow. The mathematical model development was carried out by combining the drying processes model with particle size distribution model. Particle size distribution models used are Rosin-Rommler model and Gamma distribution model. For simplicity, the model of drying processes of solid particles in the rotary dryer was developed by assuming of uniform air conditions (temperature and humidity) along the rotary dryer as in the entry conditions. The resulting differential equations were solved analytically under Matlab 6.1 facility.Since this model, solid hold up, and axial dispersion number were obtained from empirical correlations in the literatures. The drying rate of ammonium sulphate fertilizer in rotary dryer was estimated using isothermal diffusion model with effective diffusivity of moisture in the particle obtained from previous study [2]. Using Gamma function distribution, this research showed that for the value of the coefficient of variance (CV) less than 0.5, particle size distribution does not have significant effect on dryer performance. For the value of CV greater than 0.5, the dryer performance increase (or outlet solid moisture content decrease) with increasing the value of CV. The application of Rosin-Rammler model gives lower prediction of outlet solid moisture content compared to the application of Gamma function model.
Co-Authors Aditya Akhmad Sony Afan Hamzah, Afan Afri Dwijatmiko Agung Budi Laksono, Agung Budi Ali Altway Altway, Saidah ASNAWI Assegaf, Hapidz Hilal Atlway, Ali Azka Afuza Carolina, Citra Yunita Dwi Arimbi Wardaningrum Dwi Nastiti Iswarawanti Dwiningrum, Wiki Eldira Nindri Wena Endah Prasetyo Rini Esty Febriani Evi Sonjati Fadlilatul Taufany Fadlilatul Taufany Falah, M. Fajrul Faradisa Ayu Rahmatika Ferdiansyah, Dita Ahmeta Firsta Hardiyanto Gissa Navira Sevie Handoko, Erwin Harianto II Hasanah Hasanah Hastuti, Anita Widi Hendi Riesta Mulya Hermansyah, Asep Nandang Husna, Faisal K Kusnaryo K Kuswandi Khaerudin, Muhamad Wildan kusiyono, kusiyono Kusnarjo Kusnarjo Kuswandi Kuswandi Kuswandi Kuswandi La Ifa Larasati, Wahyu Adinda Lili Tanti, Lili Luwis, Kevin Mahendra, Dimas Mahfud Mahfud Mamlukah , Mamlukah Mamlukah, Mamlukah Margono Margono Masriti, Masriti Medya Ayunda Fitri Muhammad Iqbal Muhammad Noer Fadlan Muhammad Rifa'i Muhammad Yusuf Napitupulu, Safrida Nonot Soewarno Nora Amelia Novitrie Novitrie, Nora Amelia Nugraha, Agah Nur Aini Nadhifah Nur Ihda Farihatin Nisa Nurani Nurani Nurkhamidah, Siti Pamungkas, Raditya Pradana, Richo Surya Prasetyo, Ivan Pratama, Riski Indra Bayu Raditya Feda Rifandhana, Raditya Feda Ratih Permatasari Riski Febria Nurita, Riski Febria Ropii, Ahmad Rossi Suparman Ruben Leonardo Panjaitan Sabariah Sabariah Safrizal Safrizal Salasa Ariq Sungkono Samuel Sembiring Sanoesi, Vindelin Siregar, Asrul Siti Nurkamidah Siti Nurkhamidah Soares, Filomena Sofyan Sofyan Suandy, Suandy Suhadi Suhadi Suhadi Sulthon Miladiyanto, Sulthon Sumarno Sumarno Sunarjo Sunarjo Suprapto Suprapto Supratman, Rossi Supriyadi Supriyadi Susi Susanti Toto Iswanto Utamy, Sri Nur Wahyuniar, Lely Yeni Rahmawati, Yeni Yosita Dyah Anindita Yulian Naufal Ariq Zulfahmi Hawali