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基于非等溫?zé)嶂胤治龇ǖ拇自闳紵齽?dòng)力學(xué)特性分析
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江蘇省高校自然科學(xué)基金資助項(xiàng)目（10KJB470004）、江蘇高校優(yōu)勢(shì)學(xué)科建設(shè)工程資助項(xiàng)目和江蘇大學(xué)現(xiàn)代農(nóng)業(yè)裝備與技術(shù)重點(diǎn)實(shí)驗(yàn)室開放基金資助項(xiàng)目(NZ201011)


Combustion Kinetics Characteristic Analysis on Vinegar Residue Based on Non-isothermal Thermogravimetric Analysis
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    摘要:

    利用非等溫?zé)嶂胤治龇?，在不同升溫速率、樣品粒徑及氧氣體積分?jǐn)?shù)條件下對(duì)特殊的生物質(zhì)醋糟進(jìn)行了燃燒特性的研究，分析了不同條件對(duì)醋糟燃燒特性參數(shù)的影響，并且建立了醋糟的燃燒動(dòng)力學(xué)方程，計(jì)算了燃燒動(dòng)力學(xué)參數(shù)及機(jī)理函數(shù)。結(jié)果表明：升溫速率的增大有助于醋糟的燃燒。樣品粒徑及氧氣體積分?jǐn)?shù)的影響相對(duì)較小，且其值變化到一定值后影響不再明顯。由Satava-estak法計(jì)算得到了醋糟燃燒動(dòng)力參數(shù)：活化能Es、指前因子As、機(jī)理函數(shù)的積分形式G(α)。得到G(α)=［－ln(1－α)］3， 醋糟的揮發(fā)分析出和燃燒階段及固定碳燃燒階段的Es和lgAs都比較相近, Es為120~130kJ/mol，lgAs 為9~11。

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    The combustion behavior of vinegar residue was studied under the different heating rate, particle size, and oxygen volume fraction by non-isothermal thermogravimetric analysis. The influence of different conditions on burning performance parameters of vinegar residue was investigated. A combustion kinetic equation of vinegar residue was built, and the combustion kinetic parameters were obtained. The results showed that the increase of heating rate was helpful to the combustion of vinegar residue. The influence of particle size and oxygen volume fraction was relatively small. And when the value changes to a certain value, the influence was not obvious any more. According to the calculation of Satava-Sestak method, the combustion kinetic parameters, such as activation Es and pre-exponential factor As and mechanism function G(α) of vinegar residue were got. And G(α)=［－ln(1－α)3. The values of Es and lgAs in the devolatilization and combustion stage and the fixed carbon combustion stage were similar. Es was about 120～130kJ/mol, and lgAs was about 9~11.

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施愛平,張銀麗,葉麗華,王一冰,徐榮進(jìn),龔建華.基于非等溫?zé)嶂胤治龇ǖ拇自闳紵齽?dòng)力學(xué)特性分析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(2):116-120. Shi Aiping, Zhang Yinli, Ye Lihua, Wang Yibing, Xu Rongjin, Gong Jianhua. Combustion Kinetics Characteristic Analysis on Vinegar Residue Based on Non-isothermal Thermogravimetric Analysis[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(2):116-120.

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  • 在線發(fā)布日期: 2012-02-17
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