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Title: | 向下氣流式木質燃料空氣氣化爐之空氣輸配及進料控制對產氣狀況之影響研究 Effect of Air Manipulation and Feedstock Control on Quality of Producer Gas of Downdraft Wood Gasifier |
Authors: | Chiu-Hao Liu 劉邱豪 |
Advisor: | 郭景宗(Jing-Tsung Kuo) |
Keyword: | 生質能,氣化,再生能源, bioenergy,gasification,renewable energy, |
Publication Year : | 2005 |
Degree: | 碩士 |
Abstract: | 本研究係以固定床向下氣流式氣化爐來進行氣化實驗,並以柳安木顆粒(尺寸:15mm×15mm×15mm)作為生質燃料,而本氣化爐之爐體為圓柱形爐體,其爐床直徑為200mm、高度為1000mm。
本實驗並針對空氣流量、燃料含水量及空氣預熱溫度等變因,探討其對氣體成份、產氣熱值及產氣率所造成的影響。經由實驗得知本氣化爐最佳操作狀態之空燃比為2.58 Kg/Kg-2.37 Kg/Kg之間,其進料速率為6.02 Kg/h-8.18 Kg/h,而可燃氣之高熱值(HHV)約為5.2(MJ/Nm3),此狀態下之產氣率為19.87 (Nm3/h)。 An experimental investigation of a fixed-bed downdraft gasifier was carried out using wood pellets (Lauan wood, size:15mm×15mm×15mm), The downdraft gasifier is a cylindrical vessel having a diameter of 200mm and a height of 1000mm. The effect of air flow rate, moisture content and air preheating temperature on the gas composition, calorific value and the gas production rate is presented.The optimum operation of the gasifier is found to be between 2.58 (Kg/Kg) and 2.37 (Kg/Kg) of air fuel ratios at the values of 6.02 and 8.18 (Kg/h) of wet feed rate which produces the producer gas with a good HHV of about 5.2 (MJ/Nm3) at a volumetric flow of 19.87 (Nm3/h) product gas. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/38153 |
Fulltext Rights: | 有償授權 |
Appears in Collections: | 機械工程學系 |
Files in This Item:
File | Size | Format | |
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ntu-94-1.pdf Restricted Access | 4.72 MB | Adobe PDF |
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