小型生質燃料氣化爐設計製造與性能測試

• Main Author: 李永文
• Other Authors: 郭景宗
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/21076956106111789458

碩士 === 國立臺灣大學 === 機械工程學研究所 === 90 === Biomass gasification is the chemical process which the biomass fuel is decomposed under the poor oxygen and high temperature circumstance .The whole process including heating,drying,flaming pyrolysis；char combustion and gasification.The products of gasification such as hydrogen and methane are capable for the use of machinery (gas engine ,micro turbine ,etc.)fuel.Besides , the product gas of gasification is cleaner than incineration flue gas. Thus gasification technology is a environmental protective and sustainable way to dispose the biomass residues. A small-scale,fixed bed downdraft gasifier was established in this study .The main part of the reactor is a cylinder of 150mm I.D and 750mm height.The objective of this work is to inverstigate the influence of operating conditions on the gasification performance. Based on the experimental results,heating value of the products is getting higher as the air to fuel ratio is increased under the room-temperature air process.Moreover,the efficiently of gasifier could be improved by adjusting the position of air inlet properly.