Design parameters for a lab-scale two-stage rice husk gasification system

Name: Kantawan Sarasuk

keyword: Biomass gasification

Abstract: This research mainly focuses on the design of a lab-scale two-stage gasification system. A commercial two-stage gasification system was constructed in Lopburi province using rice husks as the fuel. It was necessary to perform a further development and study of the optimization conditions to achieve a desired operating of the plant. A design procedure was developed for a 50 kW thermal a two-stage gasification system, and the calculations were made based on the essential parameters of screw conveyor, two-stage gasifier, cyclone, heat exchanger and baghouse filter to find out the dimension parameters of each part. On the basis of the air's supplied rate, the dimensions of the first stage were calculated to provide a sustaining condition of the fluidization. The calculated diameters and heights of the lower part and upper part of the first stage were found to be 0.09, 0.13, 0.50, and 0.50 m, respectively. The height of char reduction chamber in the second stage was 1.4 m, whereas, the height of the char bed was variable. The calculated diameters of throat and reactor were 0.10 m and 0.24 m, respectively. This design facilitated varying parameters such as equivalence ratio, superficial velocity, and temperature. The optimization design was obtained from the experiments and from the theoretical and experimental information available in the literature. Outcomes from this study can be used to prepare a detailed design of a small-scale prototype construction. This lab-scale design was used for the estimation of the varying parameters to find out the optimum conditions, which can be scaled up in the future.

King Mongkut's University of Technology Thonburi. KMUTT Library

Address: BANGKOK

Email: info.lib@mail.kmutt.ac.th

Name: Boonrod Sajjakulnukit

Role: Advisor

Created: 2010

Modified: 2012-01-07

Issued: 2555-01-03

วิทยานิพนธ์/Thesis

application/pdf

CallNumber: JGSEE257

eng

DegreeName: Master of Science

Level: Master's Degree

Descipline: Energy Technology

Grantor: King Mongkut's University of Technology Thonburi

©copyrights King Mongkut's University of Technology Thonburi

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