Mixing and transport of particles and droplets co-suspended in a liquid-continuous phase

共悬浮在液体连续相中的颗粒和液滴的混合和传输

基本信息

  • 批准号:
    RGPIN-2020-04848
  • 负责人:
  • 金额:
    $ 2.4万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2022
  • 资助国家:
    加拿大
  • 起止时间:
    2022-01-01 至 2023-12-31
  • 项目状态:
    已结题

项目摘要

Every day we encounter systems containing droplets and particles. The combination of the two is needed for inkjet printers; the mouth-feel and stability of many food products, like salad dressing or yogurt also depend on them, as does the preparation of many medicines. In these cases, the particles are very small relative to the size of the droplets, so they collect on the droplet surfaces, forming "suits of armour" that make the droplets highly stable. In cases where the particles are larger than the droplets, the behaviour of a system can be totally different, and in fact cannot yet be well predicted. This is especially true in a system where flow or mixing is involved. Some diverse examples include the mixing/reaction process that provides us with many of the common plastics we use, and in the production of crude oil containing water droplets and sand. Under some conditions, the particles contribute to droplet break-up, i.e. the droplets will be smaller than they would be under solids-free conditions. This can make it much more difficult to separate the droplets from the liquid that carries them. Also, the presence of the droplets can make it more difficult to transport the particles, both in terms of the energy required and the ability to keep them from settling. Particle accumulation can lead to pipeline corrosion and failure, since the settled particles trap water near the pipe wall. Currently, the ability to model - or even to understand - the interactions among droplets and larger particles is extremely limited. One problem is that almost no fundamental research has been done on these systems. Also, despite the fact that the behaviour of droplets alone or settling particles alone is reasonably well understood, the combination of the two does not seem to follow the same rules. This research program is designed to address some key knowledge gaps. In the short term, the goal is to determine (i) how the presence of the droplets affects the settling characteristics of the particles and (ii) how the presence of the particles produces changes in the droplet sizes. In one series of experiments, identical systems of droplets and particles will be tested in a pipe flow, a custom-built shearing cell (two concentric cylinders, with flow between them produced by rotating the inner cylinder) and in a mixing tank. In each case the power needed to suspend the particles with and without droplets will be measured. A second series of tests will be conducted where the effects of energy added to the mixture (think mixing speed in a tank or velocity in a pipe), particle size and concentration on droplet size will be measured. The ultimate goal is to produce models of particle settling and droplet size, which would apply to any type of mixing or transportation process. The results are needed in a wide range of industries: examples include cleaner, more energy efficient processes for oil production and refining, and to produce biofuels from plants.
每天我们都会遇到包含液滴和粒子的系统。喷墨打印机需要两者的结合;许多食品的口感和稳定性,如沙拉酱或酸奶,也取决于它们,许多药物的制备也是如此。在这些情况下,颗粒相对于液滴的大小非常小,因此它们聚集在液滴表面,形成使液滴高度稳定的“盔甲”。在粒子大于液滴的情况下,系统的行为可能完全不同,事实上还不能很好地预测。在涉及流动或混合的系统中尤其如此。一些不同的例子包括混合/反应过程,为我们提供了我们使用的许多常见塑料,以及生产含有水滴和沙子的原油。在某些条件下,颗粒有助于液滴破碎,即液滴将小于它们在无固体条件下的液滴。这使得将液滴与携带它们的液体分离变得更加困难。此外,液滴的存在可能使颗粒的运输更加困难,无论是在所需的能量还是防止颗粒沉降的能力方面。颗粒积聚可导致管道腐蚀和故障,因为沉淀的颗粒将水截留在管壁附近。目前,对液滴和较大颗粒之间的相互作用进行建模甚至理解的能力非常有限。一个问题是,几乎没有对这些系统进行基础研究。此外,尽管事实上液滴单独或沉降颗粒单独的行为是相当好理解的,但两者的组合似乎并不遵循相同的规则。这项研究计划旨在解决一些关键的知识差距。在短期内,目标是确定(i)液滴的存在如何影响颗粒的沉降特性,以及(ii)颗粒的存在如何产生液滴尺寸的变化。在一系列实验中,将在管流、定制的剪切单元(两个同心圆筒,通过旋转内圆筒产生它们之间的流动)和混合罐中测试液滴和颗粒的相同系统。在每种情况下,将测量悬浮具有和不具有液滴的颗粒所需的功率。将进行第二系列测试,其中将测量添加到混合物中的能量(考虑罐中的混合速度或管道中的速度)、颗粒尺寸和浓度对液滴尺寸的影响。最终目标是产生颗粒沉降和液滴尺寸的模型,这将适用于任何类型的混合或运输过程。许多行业都需要这些成果:例如石油生产和精炼以及从植物中生产生物燃料的更清洁、更节能的过程。

项目成果

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Sanders, RSean其他文献

Sanders, RSean的其他文献

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{{ truncateString('Sanders, RSean', 18)}}的其他基金

Scale-up, design and optimization of industrial multiphase processes
工业多相过程的放大、设计和优化
  • 批准号:
    543901-2019
  • 财政年份:
    2021
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Collaborative Research and Development Grants
Mixing and transport of particles and droplets co-suspended in a liquid-continuous phase
共悬浮在液体连续相中的颗粒和液滴的混合和传输
  • 批准号:
    RGPIN-2020-04848
  • 财政年份:
    2021
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Mixing and transport of particles and droplets co-suspended in a liquid-continuous phase
共悬浮在液体连续相中的颗粒和液滴的混合和传输
  • 批准号:
    RGPIN-2020-04848
  • 财政年份:
    2020
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Scale-up, design and optimization of industrial multiphase processes
工业多相过程的放大、设计和优化
  • 批准号:
    543901-2019
  • 财政年份:
    2020
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Collaborative Research and Development Grants
A fundamental analysis of abrasive slurry hydrodynamics in Chemical-Mechanical Polishing (CMP)
化学机械抛光 (CMP) 中磨料浆流体动力学的基本分析
  • 批准号:
    RGPIN-2015-05420
  • 财政年份:
    2019
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Scale-up, design and optimization of industrial multiphase processes
工业多相过程的放大、设计和优化
  • 批准号:
    543901-2019
  • 财政年份:
    2019
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Collaborative Research and Development Grants
A fundamental analysis of abrasive slurry hydrodynamics in Chemical-Mechanical Polishing (CMP)
化学机械抛光 (CMP) 中磨料浆流体动力学的基本分析
  • 批准号:
    RGPIN-2015-05420
  • 财政年份:
    2018
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
A fundamental analysis of abrasive slurry hydrodynamics in Chemical-Mechanical Polishing (CMP)
化学机械抛光 (CMP) 中磨料浆流体动力学的基本分析
  • 批准号:
    RGPIN-2015-05420
  • 财政年份:
    2017
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
NSERC Industrial Research Chair in Pipeline Transport Processes
NSERC 管道运输过程工业研究主席
  • 批准号:
    363871-2012
  • 财政年份:
    2017
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Industrial Research Chairs
Development of a predictive, laboratory-based tool for slurry pipeline wear
开发基于实验室的泥浆管道磨损预测工具
  • 批准号:
    469116-2014
  • 财政年份:
    2017
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Collaborative Research and Development Grants

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Transport and mixing of particles in stratified environmental flows.
分层环境流中颗粒的传输和混合。
  • 批准号:
    RGPIN-2016-06542
  • 财政年份:
    2021
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Mixing and transport of particles and droplets co-suspended in a liquid-continuous phase
共悬浮在液体连续相中的颗粒和液滴的混合和传输
  • 批准号:
    RGPIN-2020-04848
  • 财政年份:
    2021
  • 资助金额:
    $ 2.4万
  • 项目类别:
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Mixing and transport of particles and droplets co-suspended in a liquid-continuous phase
共悬浮在液体连续相中的颗粒和液滴的混合和传输
  • 批准号:
    RGPIN-2020-04848
  • 财政年份:
    2020
  • 资助金额:
    $ 2.4万
  • 项目类别:
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Transport and mixing of particles in stratified environmental flows.
分层环境流中颗粒的传输和混合。
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  • 财政年份:
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  • 资助金额:
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分层环境流中颗粒的传输和混合。
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  • 资助金额:
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分层环境流中颗粒的传输和混合。
  • 批准号:
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分层环境流中颗粒的传输和混合。
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分层环境流中颗粒的传输和混合。
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  • 财政年份:
    2017
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
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分层环境流中颗粒的传输和混合。
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