概括
离心加速克服了液体金属中的压缩效应,使连续的电加热成为可能. 这一突破使得液体金属的电阻加热达到5000K以上.
科学领域:
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
背景情况:
- 液体金属中的高电流会诱导电磁压力,从而产生压力效应,中断电流的流动.
- 击效应在历史上限制了液体金属的连续电加热.
研究的目的:
- 通过离心加速来克服液体金属中的挤压效应.
- 为了使液体金属的持续电阻 (欧米) 加热到高温.
主要方法:
- 含有液体金属 (锡,,或合金) 的旋转管道,以高速度旋转.
- 通过旋转的液体金属柱子传递足够高的电流.
主要成果:
- 通过离心加速,成功克服了捏伤效应.
- 在旋转的液体金属中保持了连续的电流流.
- 液体金属的电阻加热达到超过5000K的温度.
结论:
- 离心加速是一种有效的方法,可以抵消液体金属中的缩效应.
- 这种技术使液体金属的持续高温电阻加热成为可能.
- 这些发现为先进的材料加工和高温应用开辟了可能性.
相关概念视频
02:44Heating and Cooling Curves
When a substance—isolated from its environment—is subjected to heat changes, corresponding changes in temperature and phase of the substance is observed; this is graphically represented by heating and cooling curves.
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
01:14Mechanisms of Heat Transfer I
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
01:21Multiple Pipe Systems
Multipipe systems consist of complex configurations of interconnected pipes designed to transport fluids efficiently across intricate networks. They are essential in engineering applications requiring precise control over flow distribution, pressure, and head loss. They are categorized into series, parallel, loop, and network configurations, each distinguished by unique flow characteristics and applications.
Series Configuration
In a series configuration, fluid flows sequentially from one pipe...
Series Configuration
In a series configuration, fluid flows sequentially from one pipe...