Title: | Simulation of small-scale waste biomass gasification integrated power production: a comparative performance analysis for timber and wood waste |
Author: |
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Date: | 2020-08 |
Language: | English |
Scope: | 147-152 |
University/Institute: | Háskóli Íslands University of Iceland |
School: | Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) |
Department: | Iðnaðarverkfræði-, vélaverkfræði- og tölvunarfræðideild (HÍ) Faculty of Industrial Eng., Mechanical Eng. and Computer Science (UI) |
Series: | International Journal of Applied Power Engineering;9(2) |
ISSN: | 2252-8792 |
DOI: | 10.11591/ijape.v9.i2.pp147-152 |
Subject: | Electrical efficiency; Power production; Process simulation; Waste biomass gasification; Waste to energy; Lífrænn úrgangur; Lífmassi; Orkugjafar; Líkön; Gaskennd efni |
URI: | https://hdl.handle.net/20.500.11815/1752 |
Abstract:A simulation model for integrated waste biomass gasification with
cogeneration heat and power has been developed using Aspen Plus. The model
can be used as a predictive tool for optimization of the gasifier performance.
The system has been modeled in four stages. Firstly, moisture content of
biomass is reduced. Secondly biomass is decomposed into its elements by
specifying yield distribution. Then gasification reactions have been modeled
using Gibbs free energy minimization approach. Finally, power is generated
through the internal combustion engine as well as heat recovery system
generator. In simulation study, the operating parameters like temperature,
equivalence ratio (ER) and biomass moisture content are varied over wide
range and their effect on syngas composition, low heating value (LHV) and
electrical efficiency (EE) are investigated. Overally, increasing temperature
and decreasing ER and MC lead to improvement of the gasification
performance. However, for maximum electrical efficiency, it is important to
find the optimal values of operating conditions. The optimum temperature, ER
and MC of the down draft gasifier for timber and wood waste are 800˚C,
0.2-0.3 and 5%. At such optimum conditions, CO and H2 reach to the highest
production and LHV and EE are around 7.064 MJ Nm-3
and 45%, respectively.
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Description:Publisher's version (útgefin grein)
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Rights:Tihis work is licenced under a Creative Commons Attribution-NonComercial 4.0 International Licence
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