Computational Fluid Dynamics Analysis for Designing Downdraft-Rice Husk Gasifier

Effects of throat sizing and gasification agents in a biomass downdraft gasifier: towards CO2-free syngas production

“…However, a full understanding of the process should include the yield of produced gas and the gasification efficiency for full understanding of the whole process. Gasification efficiency is calculated as follows: 38 where Q g is the syngas LHV in (MJ Nm −3 ), G p is the produced gas yield in Nm 3 kg −1 , and Q b is the biomass LHV in MJ kg −1 and estimated as following. 68 Q b = 0.339 C + 1.029 H + 0.109 S − 0.112 O − 0.025 W Q g = 0.126 CO + 0.108 H 2 + 0.358 CH 4 where C, H, O, S are the elemental composition of the feedstock, and W is the moisture content.…”

“…It has a great effect on the producer gas composition, gasier power, and tar formation, as shown in the kinetic model study of. 31 Some CFD studies focused on the effect of throat angle, 37,38 while others studied the effects of number and angle of nozzles e.g. (ref.…”

Simulation of heat and pressure transfer in concentric heat exchangers for small industrial scale

“…This step aims to set the proportion of space where the CFD simulation calculation will be carried out. Next is determining the mesh, generally the mesh size chosen is the standard mesh size [11]. By increasing the mesh size, calculations will be faster but the simulation data will not be accurate.…”

Analisis Kandungan Hasil Proses Gasifikasi Sekam Padi

“…Di lingkungan pedesaan pemanfaatan limbah kulit padi bisa diolah menjadi briket atau arang untuk keperluan rumah tangga contohnya memasak atau bisa dipakai langsung sebagai bahan bakar pada pembakaran langsung. Limbah kulit padi juga bisa dimanfaatkan sebagai penghasil gas metana (CH 4 ) yang mudah terbakar dengan menggunakan beberapa teknologi gasifikasi [5].…”