摘要
当前针对做功改变物体内能的实验研究存在一定缺陷,本文深入研究做功改变物体内能的新型实验,通过分析空气压缩仪引火原理及传统实验失败主要原因,采用透明式分体式气缸替换原有空气压缩仪气缸,使气缸内气体较好达到乙醚燃烧温度,在改进后空气压缩仪耐压壁新建棉花填充口,降低活塞的运动阻力,提升活塞的移动速度,加快做功改变物体内能实验进程。采用二硫化碳代替乙醚并添加火柴头辅助物,提升实验安全性。结果表明,采用本文新型实验得到做功改变物体内能结果成功率和经济效益高,且实验耗时短,是一种实用性强的做功改变物体内能实验。
At present,there are some defects in the experimental study of changing the internal energy of an object by doing work.This paper studies in depth the new experiment of changing the internal energy of an object by doing work.By analyzing the ignition principle of the air compressor and the main reasons for the failure of the traditional experiment,the transparent split cylinder is used to replace the original air compressor cylinder,so that the gas in the cylinder can reach the combustion temperature of ether better.A new cotton filling port is built on the pressure wall of the air compressor,which reduces the motion resistance of the piston,improves the moving speed of the piston,and speeds up the experiment process of changing the internal energy of the object by doing work.Carbon disulfide was used instead of ether and matchhead adjuvant was added to improve the experimental safety.The results show that the success rate and economic benefit of this new experiment are high,and the experiment time is short.It is a practical experiment of changing the internal energy of an object by doing work.
作者
何临红
He Linhong(Teaching and Research Department of Duyun Education Bureau,Duyun 558000,China)
出处
《科技通报》
2019年第7期222-226,共5页
Bulletin of Science and Technology
基金
贵州省省级课题(编号:2017B099)
关键词
做功改变
物体内能
新型
实验研究
空气压缩仪
活塞
work change
internal energy of object
new type
experimental study
air compressor
piston
