Browsing by Author "Satria, Rendy"

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    Optimasi Pembuatan Pulp Semi-Mekanis Tandan Kosong Sawit: dengan Metode RSM-CCD
    (2014-02-04) Satria, Rendy; Maulvi Sani, Ikmal; Holy, Valiant; Rionaldo, Hari; Zulfansyah; Amraini, Said Zul
    Percobaan pembuatan pulp TKS dengan proses semi mekanis dipelajari pada reaktor batch skala laboratorium. Rancangan percobaan RSM-CCD digunakan untuk mempelajari pengaruh konsentrasi NaOH 16, 18 dan 20%, nisbah padatan terhadap cairan 118, 1/10 dan 1112, dan waktu pemasakan 30, 45 dan 60 menit terhadap kualitas pulp. TKS (yield dan kadar lignin). Dari hasil percobaan diperoleh yield pulp 32 - 52% dengan kadar lignin 8 - 23%. Analisis Respone Surface dan Multi-optimisasi untuk mendapatkan kondisi operasi optimum, yang menghasilkan yield pulp maksimum dan. kadar lignin minimum, dilakukan menggunakan bantuan software Minitab (Trial Version). Hasil analisis RSM memperlihatkan bahwa nisbah padatan terhadap cairan memiliki pengaruh yang paling dominan terhadap kualitas pulp, diikuti dengan waktu pemasakan dan konsentrasi NaOH. Kualitas pulp optimum, yaituyield 38% dan kadar lignin 14% . dicapai pada kondisi operasi konsentrasi NaOH 18%, nisbah padatan terbadap cairan 118,0765 dan waktu pemasakan 28,456 menit.
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    Penyelesaian Numerik Metode Distilasi Biner McCabe-Thiele
    (2013-05-07) Vhiwendro, Guntur; Savitri, Kesni; Satria, Rendy; Rionaldo, Hari; Zulfansyah
    The Graphical McCabe-Thiele is a method to calculate the theoretical stage of biner distillation. Generally, that’s still used to analyze the biner distillation because a simple formulation and mostly used in chemical engineering course. The equilibrium curve, operation line and equilibrium stages are constructed, sothatthe number of theoretical stages can be calculated. Furthermore, drawing an equilibrium curve, operation line, and equilibrium stages must be accurate. It will be complicated to observe the impact of input difference, because the curve should be re-constructed and need more time. This article use matlab for solving the distillation biner’s equation (ethanol and water). The numerical calculation for R = 3 acquired the ideal stage = 11,5313, actual stage = 16,6682 and overall efficiency = 0,6918. Furthermore, the calculation with R = 2 get the ideal stage = 16,7885, actual stage = 24,6271and overall efficiency = 0,6817. Numerical method can solve this problem without change the equilibrium curve, operation line and equilibrium stages.