In any commercial food processing plant , the movement of liquid
foods from one location to another becomes an essential operation.
Various types of systems are used for moving raw or unprocessed liquid
foods as well as processed liquid products before packaging. The range
of liquid foods encountered in a processing plant is extremely wide,
encompassing foods with distinctly different fl ow properties, from
milk to tomato paste. The design of these systems in food processing
is signifi cantly different from most other applications because of the
essential need for sanitation to maintain product quality. The transport
system must be designed to allow for ease and effi ciency in cleaning.
In this chapter , we will concern ourselves mostly with the fl ow of fl uids.
Fluid is a general term used for either gases or liquids. Most of our discussion
will deal with liquid foods. A fl uid begins to move when a force
acts upon it. At any location and time within a liquid transport system,
several types of forces may be acting on a fl uid, such as pressure, gravity,
friction, thermal effects, electrical charges, magnetic fi elds, and Coriolis
forces. Both the magnitude and direction of the force acting on a fl uid
are important. Therefore, a force balance on a fl uid element is essential
to determine which forces contribute to or oppose the fl ow.
From our daily experience with handling different kinds of fl uids, we
know that if pressure at one location within a fl uid system is higher
than another, the fl uid moves toward the region of lower pressure.
Kitchens are full of fluids you might never have known were there. A fluid can be a liquid, gas, solid, or even plasma. Check out this episode of Food Science, as Dr. Kiki drops some knowledge regarding viscosity and her main man Sir Isaac Newton.
In any commercial food processing plant , the movement of liquidfoods from one location to another becomes an essential operation.Various types of systems are used for moving raw or unprocessed liquidfoods as well as processed liquid products before packaging. The rangeof liquid foods encountered in a processing plant is extremely wide,encompassing foods with distinctly different fl ow properties, frommilk to tomato paste. The design of these systems in food processingis signifi cantly different from most other applications because of theessential need for sanitation to maintain product quality. The transportsystem must be designed to allow for ease and effi ciency in cleaning.In this chapter , we will concern ourselves mostly with the fl ow of fl uids.Fluid is a general term used for either gases or liquids. Most of our discussionwill deal with liquid foods. A fl uid begins to move when a forceacts upon it. At any location and time within a liquid transport system,several types of forces may be acting on a fl uid, such as pressure, gravity,friction, thermal effects, electrical charges, magnetic fi elds, and Coriolisforces. Both the magnitude and direction of the force acting on a fl uidare important. Therefore, a force balance on a fl uid element is essentialto determine which forces contribute to or oppose the fl ow.From our daily experience with handling different kinds of fl uids, weknow that if pressure at one location within a fl uid system is higherthan another, the fl uid moves toward the region of lower pressure.Kitchens are full of fluids you might never have known were there. A fluid can be a liquid, gas, solid, or even plasma. Check out this episode of Food Science, as Dr. Kiki drops some knowledge regarding viscosity and her main man Sir Isaac Newton.
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