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Related Concept Videos

Multiple Pipe Systems01:21

Multiple 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...
Pipe Flowrate Measurement: Problem Solving01:28

Pipe Flowrate Measurement: Problem Solving

A spray tank system is engineered to uniformly distribute a pest-control liquid across plants by using a pressurized mechanism. The tank, pressurized to 150 kPa, holds the pesticide at a height of 0.80 meters. Liquid flows from the tank through a 1.9 meter pipe with a diameter of 0.015 meters, angled at 0.698 radians, ultimately reaching a 0.007 meter nozzle that sprays the pesticide. Accurate calculation of the system's flow rate is crucial to ensure uniform application, and this is achieved...
Rapidly Varying Flow01:24

Rapidly Varying Flow

Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
Pumped Concrete01:13

Pumped Concrete

Concrete in large quantities can be pumped across long distances for placing in inaccessible sites. This system comprises a hopper that receives concrete from a mixer, a pump to propel the concrete, and pipelines that facilitate its delivery.
For direct-acting pumps, the concrete enters the pump via the inlet valve under the action of gravity and suction created by the movement of the piston. This concrete is then forced into the pipeline and out through the outlet valve by the forward movement...
Single Pipe Systems01:24

Single Pipe Systems

In pipe flow analysis, problems are typically categorized into three types — Type I, Type II, and Type III — based on the known parameters and the desired outcome. Each type of problem addresses specific engineering requirements using fluid properties, pipe characteristics, and operational conditions.
In a Type I problem, fluid properties (density and viscosity), pipe characteristics (including diameter, length, and surface roughness), and the flow rate or average velocity are known. The...
Plane Potential Flows01:23

Plane Potential Flows

Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform Flow
Uniform flow...

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High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
10:22

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices

Published on: September 2, 2009

Multi-pumping flow systems: an automation tool.

José L F C Lima1, João L M Santos, Ana C B Dias

  • 1REQUIMTE, Departamento de Quimica-Fisica, Faculdade de Farmácia, Universidade do Porto, Rua Anibal Cunha 164, Porto 4050, Portugal.

Talanta
|October 31, 2008
PubMed
Summary
This summary is machine-generated.

Multi-pumping flow systems (MPFS) offer automated analytical procedures using micro-pumps. This technology enhances sample handling and reagent addition for faster, more efficient analyses with reduced waste.

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Area of Science:

  • Analytical Chemistry
  • Automation Technology

Background:

  • Continuous flow methodologies are crucial for automated analytical procedures.
  • Multi-pumping flow systems (MPFS) represent a recent advancement in this field.
  • MPFS utilize multiple solenoid micro-pumps for integrated sample and reagent handling.

Purpose of the Study:

  • To introduce and describe the capabilities of multi-pumping flow systems (MPFS).
  • To highlight the advantages of MPFS in automating analytical procedures.
  • To demonstrate the efficiency and benefits of MPFS in laboratory settings.

Main Methods:

  • Implementation of multiple solenoid micro-pumps within a single manifold.
  • Automated control of fundamental analytical operations: sample insertion, reagent addition, and signal measurement.
  • Utilizing pulsed flow generated by micro-pumps for enhanced mixing and reduced dispersion.

Main Results:

  • MPFS enable fully automated, easily controlled, and operated analytical systems.
  • Reduced number of system components, minimizing control complexity and potential malfunctions.
  • Pulsed flow leads to rapid sample/reagent homogenization and low axial dispersion, improving analytical signals.
  • Development of simple, compact, versatile, and fast analytical procedures.
  • Low reagent and sample consumption, reduced waste generation, and minimized operator intervention.

Conclusions:

  • MPFS offer a significant advancement in automated analytical chemistry.
  • The technology provides a versatile, efficient, and cost-effective solution for various analytical tasks.
  • MPFS contribute to greener analytical practices through reduced consumption and waste.