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保温瓶内水温变化规律的研究

更新时间:2016-10-17:  来源:毕业论文

保温瓶内水温变化规律的研究

摘 要:为了对保温瓶的保温性能进行改进,本文利用温度计分三个方面进行实验:同一保温瓶盛水量不同时的水温变化,容量不同保温瓶盛水量相同时的水温变化,漏气保温瓶与不保温装置的保温效果对比。通过对实验结果分析,可以得到:同一保温瓶盛水量不同时,水量越少,水温变化越明显,且四小时后水温变化逐渐减缓;不同保温瓶盛水量相同时,保温瓶的容量越大,水温变化越明显,在前两个小时变化最显著;漏气保温瓶与敞口保温瓶相比,漏气保温瓶的保温效果更差。进而为保温瓶的保温性能的改进提供了一定的参考价值。
关键词:保温瓶;盛水量;水温变化;保温效果

Study on the Changes of Water Temperature in the Thermos Bottle
Abstract: In order to improve the heat preservation performance of the vacuum flask, three different experiments were taken by using the thermometer in this paper: different water temperature in the same vacuum flask that was filled of different amount of water. Different water temperature in different vacuum flask with the same amount of water. The different heat preservation effect is between leaking vacuum flask and no heat preservation device. The conclusions can be drawn through the analysis of experimental results: the less water the same vacuum flask filled, the water temperature change is more obvious, and the water temperature slow down gradually after four hours. The greater capacity of the vacuum flask, the water temperature changes is more obvious in different vacuum flasks, and the water temperature changes significantly in the first two hours. Compared to the exposure vacuum flask, the leaking vacuum flask heat preservation effect is poorer. Thus provide a certain reference value for the thermal heat preservation performance of the vacuum flask.
Key Words: Thermos bottle; Water amount; The changes of water temperature; The heat preservation effect

目  录

摘要 1
引言 1
1.传统热水瓶的功能介绍 2
1.1结构材料解析 2
1.2功能原理解析 2
2.实验原理 3
3.实验研究 3
3.1同一保温瓶不同水量时水温变化的实验 3
3.2不同保温瓶盛水量相同时水温变化的实验 5
3.3漏气保温瓶与正常保温瓶保温效果对比的实验 6
4.误差分析 8
5.保温瓶中热传递的防止 8
5.1热对流的防止 8
5.2热传导的防止 9
6.结束语 10
参考资料 10
致谢 11,3359

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