Numerical Study of Multistage Municipal Solid Wate Gasification Downdraft System with Air Ratio Pyrolysis, Oxidation, and Reduction 1:8:1

Rizqiana Yogi Cahyaningtyas, Arif Rahman Saleh, Bambang Sudarmanta

2018

Abstract

This research was carried out numerically to determine the sequential process in each zone due to pyrolysis, oxidation, and reduction air input ratios of 1: 8: 1. Whereas equivalent ratio (ER) is fixed at 0.4. The simulation on the reactor is carried out completely and separately for each zone, by applying the reaction according to the zone. Computational Fluid Dynamics (CFD) software is used to predict syngas composition, chemical reactions, and temperature distribution in each zone. The making of geometry, meshing, and determination of the modeling domain is done with Gambit 2.4.6 software. While numerical simulations are performed with Ansys Fluent 15.0 software. The modeling used is the standard model k-epsilon, Radiation P1, the transport species model with turbulence used is finite-rate/eddy-dissipation, and Discrete Phase Model (DPM).Sodifferent chemical reactions are considered in the reactor depending on the operating zone, oxidation and reduction. A three-dimensional modelling for the geometry is used. For the purpose of model validation, experimental data of temperature profiles and syngas composition are used. Besides, the influence of concentration of an oxidant agent is numerically investigated. Results show that the maximum temperatures reached in oxidation and reduction processes are, respectively, 932.38 oC.

Paper Citation

in Harvard Style

Cahyaningtyas R., Sudarmanta B. and Saleh A. (2018). Numerical Study of Multistage Municipal Solid Wate Gasification Downdraft System with Air Ratio Pyrolysis, Oxidation, and Reduction 1:8:1.In Proceedings of the 3rd International Conference on Marine Technology - Volume 1: SENTA, ISBN 978-989-758-436-7, pages 201-205. DOI: 10.5220/0008548902010205

in Bibtex Style

@conference{senta18,
author={Rizqiana Yogi Cahyaningtyas and Bambang Sudarmanta and Arif Rahman Saleh},
title={Numerical Study of Multistage Municipal Solid Wate Gasification Downdraft System with Air Ratio Pyrolysis, Oxidation, and Reduction 1:8:1},
booktitle={Proceedings of the 3rd International Conference on Marine Technology - Volume 1: SENTA,},
year={2018},
pages={201-205},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008548902010205},
isbn={978-989-758-436-7},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 3rd International Conference on Marine Technology - Volume 1: SENTA,
TI - Numerical Study of Multistage Municipal Solid Wate Gasification Downdraft System with Air Ratio Pyrolysis, Oxidation, and Reduction 1:8:1
SN - 978-989-758-436-7
AU - Cahyaningtyas R.
AU - Sudarmanta B.
AU - Saleh A.
PY - 2018
SP - 201
EP - 205
DO - 10.5220/0008548902010205