| 谷物燃烧热的测定研究 |
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| 引用本文： | 赵爱娟,冯彩婷,周军华.谷物燃烧热的测定研究[J].河南科学,2014,32(7):1189-1192. |
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| 作者姓名： | 赵爱娟 冯彩婷 周军华 |
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| 作者单位： | 1. 郑州师范学院,郑州,450000
2. 周口师范学院,河南周口,466000 |
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| 摘 要： | 实验采用氧弹式量热计测定了4种谷物的燃烧热值.用苯甲酸作为标准物质;在室温25℃、氧气压力2.4 MPa左右、样品量1 g左右的条件下,进行燃烧实验.用雷诺图校正法对实验数据进行处理,得出谷物燃烧前后系统温度的变化值,进而计算谷物的燃烧热.利用量热法对谷物的燃烧热进行测定,原理可靠,仪器简便,操作简单.实验结果表明大米燃烧放热最少,小麦燃烧放热最多.
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| 关 键 词： | 氧弹式量热计 谷物 燃烧热 |
Determination of the Heat of Combustion of Cereals |
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| Zhao Aijuan,Feng Caiting,Zhou Junhua.Determination of the Heat of Combustion of Cereals[J].Henan Science,2014,32(7):1189-1192. |
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| Authors: | Zhao Aijuan Feng Caiting Zhou Junhua |
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| Institution: | Zhao Aijuan, Feng Caiting, Zhou Junhua (1. Zhengzhou Normal University, Departement of Chemistry, Zhengzhou 450000, China; 2. Zhoukou Normal University, Departement of Chemistry, Zhoukou 466000, Henan China) |
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| Abstract: | The heat of combustion of four cereals was measured with oxygen bomb calorimeter in this experiment. The experiment was carried temperature 25℃, benzoic acid used as the standard substance, the oxygen pressure 2.4 MPa, and 1 g sample. The experimental data was dealed with Reynolds curve correction, and the value of cereals＇temperature changes before and alter the combustion was obtained, then the heat of combustion of cereals was calculated. The principle of the method was reliable, and the instrument and operation were simple for determining the combustion heat of the cereals through calorimeter. The results showed that the heat of combustion of the rice was the lowest, while the heat of combustion of the wheat was the highest. |
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| Keywords: | oxyen bomb calorimeter cereals heat of combustion |
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