南华大学学报（自然科学版）
南華大學學報（自然科學版）
남화대학학보（자연과학판）
JOURNAL OF NANHUA UNIVERSITY(SCIENCE AND TECHNOLOGY)
2015年
2期
71-76
,共6页
朱茂葵%卿德藩%陈爱瑞%米冰洁%罗阳成
硃茂葵%卿德藩%陳愛瑞%米冰潔%囉暘成
주무규%경덕번%진애서%미빙길%라양성
高热值%生物质%气化炉%数值模拟
高熱值%生物質%氣化爐%數值模擬
고열치%생물질%기화로%수치모의
higher heating value%biomass%gasifier%numerical simulation
研究了以干木质颗粒作为燃料,以空气—水蒸气作为气化剂的户用高热值燃气生物质气化炉,利用Fluent14.0模拟了水蒸气入口距离气化炉内炉栅位置高度h、空气入口流量V0与水蒸气入口流量Vs这三个参数对CO、H2和CH4的体积浓度和燃气热值影响,并采用实验验证数值模拟的结果.研究的结果表明：若水蒸气入口位置高度h=195 mm,水蒸气入口流量Vs=1.41 m3/h时,空气入口流量V0=0.86 m3/h,生物质燃气燃烧热值最大为Q=9.95 MJ/m3,相比单一空气气化剂作用下提高了98.21%.
研究瞭以榦木質顆粒作為燃料,以空氣—水蒸氣作為氣化劑的戶用高熱值燃氣生物質氣化爐,利用Fluent14.0模擬瞭水蒸氣入口距離氣化爐內爐柵位置高度h、空氣入口流量V0與水蒸氣入口流量Vs這三箇參數對CO、H2和CH4的體積濃度和燃氣熱值影響,併採用實驗驗證數值模擬的結果.研究的結果錶明：若水蒸氣入口位置高度h=195 mm,水蒸氣入口流量Vs=1.41 m3/h時,空氣入口流量V0=0.86 m3/h,生物質燃氣燃燒熱值最大為Q=9.95 MJ/m3,相比單一空氣氣化劑作用下提高瞭98.21%.
연구료이간목질과립작위연료,이공기—수증기작위기화제적호용고열치연기생물질기화로,이용Fluent14.0모의료수증기입구거리기화로내로책위치고도h、공기입구류량V0여수증기입구류량Vs저삼개삼수대CO、H2화CH4적체적농도화연기열치영향,병채용실험험증수치모의적결과.연구적결과표명：약수증기입구위치고도h=195 mm,수증기입구류량Vs=1.41 m3/h시,공기입구류량V0=0.86 m3/h,생물질연기연소열치최대위Q=9.95 MJ/m3,상비단일공기기화제작용하제고료98.21%.
In this research,with woody particles as fuel and air-steam as gasification agent, the high heating value gas biomass gasifier uses numerical value of software Fluent 14 . 0 to simulate the impact of the three parameters,the position height ‘h’ from the entrance of steam to the gasifier grate,the air inlet flow V0 and the steam inlet flow Vs ,on CO,H2 and CH4 volume concentration and gas calorific value and use experiment to verify the result of numerical simulation. The results of research show that when the position height‘h’ is 195 mm,the steam inlet flow Vs is 1. 41 m3/h and air inlet flow V0 is 0. 86 m3/h,the combus-tion of biomass gas calorific value arrives its top,the value is Q=9. 95 MJ/m3,which is 98. 21% higher than when single gas agent is used.
