| 助燃法在燃烧热测定实验中的实践与应用 |
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| 引用本文： | 黄桂萍,王科军,王燕飞,钟平,李勋,钟金莲,胡乔生. 助燃法在燃烧热测定实验中的实践与应用[J]. 赣南师范学院学报, 2010, 31(3): 112-114 |
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| 作者姓名： | 黄桂萍 王科军 王燕飞 钟平 李勋 钟金莲 胡乔生 |
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| 作者单位： | 赣南师范学院,化学与生命科学学院,江西,赣州,341000 |
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| 基金项目： | 国家特色专业建设项目，江西省教育厅教学改革项目，赣南师范学院精品候选课程(第五批(17号))建设项目 |
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| 摘 要： | 用计算机自动控制或手控操作测定燃烧热实验时,在点火丝和药片之间滴一滴非挥发性机油予以助燃,确保了实验点火的100%成功,实验时间由4.0~5.0 h减少至2.0~2.5 h,充氧压力由20 atm可降至10 atm,实验相对误差在2%以下,远远小于5%的实验要求,且完美解决了该实验因点火失败而带来的费时费力操作烦恼.通过在实验教学中反复应用,效果很好,值得同行借鉴和推广.
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| 关 键 词： | 助燃法 燃烧热 测定 教学改进 |
Practical Application of Combustion-supporting Method in Combustion Heat Determination |
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| HUANG Gui-ping,WANG Ke-jun,WANG Yan-fei,ZHONG Ping,LI Xun,ZHONG Jin-lian,HU Qiao-sheng. Practical Application of Combustion-supporting Method in Combustion Heat Determination[J]. Journal of Gannan Teachers' College(Social Science(2)), 2010, 31(3): 112-114 |
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| Authors: | HUANG Gui-ping WANG Ke-jun WANG Yan-fei ZHONG Ping LI Xun ZHONG Jin-lian HU Qiao-sheng |
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| Abstract: | In the combustion heat determination experiment by computer or manual control,the ignition becomes facile by adding a drop of non-volatile engine oil between the ignition wire and tablet.This practical skill shortens the experimental time from 4.0~5.0h to 2.0～2.5h,reduces the oxygen pressure from 20atm to 10atm.The relative error is less than 2%,which is lower than the experimental request of 5%.The application of the improved ignition method shows its promotional value by satisfied effects. |
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| Keywords: | combustion-supporting method combustion heat determination teaching improvement |
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