Abstract
Finding alternative energy sources for fossil fuels was a global matter of concern, especially in developing countries. Rice husk, an abundant biomass in Viet Nam, was used to partially replace fossil fuels by gasification process. The study was conducted on the pilot plant fixed bed up-draft gasifier with two kind of gasification agents, pure air and air-steam mixture. Mathematical modeling and computer simulations were also used to describe and optimize the gasification processes. Mathematical modeling was based on Computational Fluid Dynamics method and simulation was carried by using Ansys Fluent software. Changes in outlet composition of syngas components (CO, CO2, CH4, H2O, H2) and temperature of process, in relation with ratio of steam in gasification agents, were presented. Obtained results indicated concentration of CH4, H2 in outlet was increased significantly when using air-steam gasification agents than pure air. The discrepancies among the gasification agents were determined to improve the actual process.
Highlights
With the continuous development of economy and technology, people's livingTrang 96 standards were constantly being enhanced and thereby energy demand surged in Vietnam
Gasification was a multiphase model that was mixed with chemical reactions
The purpose of this study was to improve the gasification of rice husk and towards optimizing the operational processes
Summary
Trang 96 standards were constantly being enhanced and thereby energy demand surged in Vietnam. As an agricultural country with a high proportion of the economy, Vietnam has huge biomass energy sources, specially rice husk, the by-products of rice production. If it takes advantage of the energy from the abundant byproducts of rice, it can meet 27% of demand for primary energy consumption [2]. For DEM-based simulation, the framework for the application of the natural and physical models was provided. It was computationally expensive, especially when the chemical reactions were supplemented [4]. The purpose of this study was to improve the gasification of rice husk and towards optimizing the operational processes
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
