高度煤炭污泥的风病学特性
Weixiong Zheng1, Hai Jiang1, Jiameng Cheng1
1School of Mechanical and Electrical Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China.
ACS omega
|February 12, 2024
概括
这项研究研究了煤炭粘液的风湿学,发现温度影响其流动性质. 收益应力和低剪压应力随温度增加,而高剪压应力减少,揭示了流体燃料运输的关键见解.
科学领域:
- 流体力学 流体力学 流体力学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 缩的煤污泥是一种可行的液体燃料,通过管道运输.
- 了解煤炭粘液的气质特性 (产量应力,粘性弹性) 和温度依赖性对于高效的管道运输至关重要.
- 现有的方法在测量高粘度材料的动态屈服应力方面面临挑战.
研究的目的:
- 为了研究不同温度下煤炭粘液的气质特性和产应应力.
- 探索温度对煤炭粘液粘性弹性的影响.
- 用压力波速度来确定煤炭粘液的散装模量.
主要方法:
- 在不同度和温度下对煤炭粘液进行了风学试验.
- 开发了一种使用剩余管道压力的新方法来测量动态产量压力.
- 振荡式剪切试验被用来评估粘弹性特性.
- 压力波速度测量确定了散装模量.
主要成果:
- 剪切应力随着高剪切速率的温度增加而降低.
- 收益应力和低剪压应力随着温度的增加而增加.
- 煤污泥表现出粘弹性行为,剪切弹性随温度升高而上升.
- 压力波的速度保持不变,不受温度变化的影响.
结论:
- 温度显著影响煤炭粘液的质行为,影响其适用于管道运输的适用性.
- 拟议的剩余压力方法为动态产量应力测量提供了一个可行的替代方案.
- 煤炭粘液表现出温度依赖的粘弹性,这是管道流量建模的关键因素.
- 散装模量独立于温度,简化了某些运输计算.
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