mass flow

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Related to mass flow: Mass flow hypothesis

mass flow

an hypothesis to explain the movement of solutes in a plant by means of a hydrostatic pressure gradient. The idea is that in one part of the plant (the source) solute particles are actively secreted into sieve cells of PHLOEM, producing a high osmotic concentration which attracts water by OSMOSIS. In another part of the plant (the sink) solute particles are leaving the phloem, thus lowering the osmotic concentration which causes water to leave also. There is, therefore, a pressure gradient set up between the source (e.g. leaf) and the sink (e.g. root) and fluids flow from one to the other, down the gradient. See TRANSLOCATION (1).

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translocation

References in periodicals archive ?

In order to verify the accuracy of the present model, the predicted mass flow rates of short tube orifices are compared with experiment data, which were obtained from published literature covering a wide range of working conditions and different geometries.

Numerical modeling of refrigerants flowing through short tube orifices

The Innova-Mass Model 240 and Model 241 measure five process variables - mass flow, volumetric flow, temperature, pressure and density - through one process connection.

United States : Sierra cryogenic flowmeter measures liquefied gas

Total mass flow entering the burning chamber with hot flow condition is dependent on draft or pressure drop available.

Flow optimization, heat transfer analysis of a burning chamber using-CFD

For more information on the InterTech M-1075-Y Mass Flow Leak Detectors and other InterTech instruments, Applications Lab, and consulting services, call 847/679 3377 or visit http://www.

INTERTECH UNVEILS LEAK DETECTORS WITH COMMUNICATION

The level in the weigh hopper is held constant and the extruder mass flow is constantly computed and controlled from feeder mass flows and weigh hopper changes.

K-Tron adds gravimetric extrusion control

Featuring direct gas mass flow measurement, each self-cleaning Model 640S utilizes Sierra's patented Dry-Sense Technology for drift-free performance.

Immersible Thermal Mass Flow Meter has self-cleaning purge port

In the model BG-3, conditioned dilution air is measured and controlled by a dilution air mass flow controller located in the TDAC system.

Partial flow sampling systems for transient engine testing. (Test Equipment)

Two centuries ago, Italian scientist Giovanni Battista Venturi developed a mass flow measurement device for incompressible fluids based on the characteristic pressure drop that fluids exhibit when accelerated to a higher velocity.

Cluster criteria: Auburn develops optical sensor for measuring discrete particle flows

The DE 10 and DE 20 Impact Weighers are designed to measure the mass flow rate and total mass of free-flowing particulate materials.

Impact weighing systems

Ability to accurately measure mass flow makes Coriolis meters a popular choice in process plants.

Flowmeter mass appeal

5UT0 iTEC GmbH (formerly known as CS-iTEC GmbH) reports it is exhibiting several new products at Com Vac 24th-28th April in Hannover, including four mass flow sensors and a dual sensor ATEX/IECex dew point transmitter.