THERMAL SCIENCE

International Scientific Journal

Dillibabu Venugopal

,

Lakshmanan Thangavelu

,

Natarajan Elumalai

AIR AND OXYGEN GASIFICATION SIMULATION ANALYSIS OF SAWDUST

ABSTRACT
Gasification is the conversion process of low-grade solid fuel into gaseous fuel by thermo-chemical reactions. In this paper air gasification and oxygen gasification simulation of sawdust is carried out using FACTSAGE 6.3 software. The effect of temperature and equivalence ratio (Φ) on producer gas composition is analysed. Combustible gas compositions (H2, CO and CH4) are found out at different operating conditions for air and oxygen gasification separately. Temperature range is 200-1200°C and Φ value varied from 0.3-0.6. Gas heating values (HHV & LHV) carbon conversion efficiency (CCE) and cold gas efficiency (CGE) are calculated. In air gasification, maximum HHV of 5.96 MJ/Nm3 is reached at 700°C for Φ=0.3 and in oxygen gasification, 9.85 MJ/Nm3 is attained at 800°C and Φ=0.3. The maximum cold gas efficiency of 84.37 and 84.73% reached by air and oxygen gasification respectively at 1200°C for Φ=0.3.
KEYWORDS
sawdust, air gasification, oxygen gasification, simulation, FACTSAGE
PAPER SUBMITTED: 2017-06-13
PAPER REVISED: 2018-02-27
PAPER ACCEPTED: 2018-03-20
PUBLISHED ONLINE: 2018-04-28
DOI REFERENCE: https://doi.org/10.2298/TSCI170613102V
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 2, PAGES [1043 - 1053]
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Air and oxygen gasification simulation analysis of sawdust

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