Business Law Overview
Definition of Business Law Business law encompasses all of the laws that dictate how to form and run a business. This includes all of the laws that govern how to…
FICK’S LAW OF DIFFUSION
Adolf Fick (1955) first described the molecular diffusion in an isothermal, isobaric binary system of components A and B. According to his idea of molecular diffusion, the molar flux of…
Measurement and control of solids flowrate
The flowrate of solids can be measured either as they leave the hopper or as they are conveyed. In the former case, the hopper may be supported on load cells…
What Is Mass Transfer?
Mass transfer describes the transport of mass from one point to another and is one of the main pillars in the subject of Transport Phenomena. Mass transfer may take place…
Flow of solids through orifices
The discharge rate of solid particles is usually controlled by the size of the orifice or the aperture at the base of the hopper, though sometimes screw feeders or rotating…
Flow of solids in hoppers
Solids may be stored in heaps or in sacks although subsequent handling problems may be serious with large-scale operations. Frequently, solids are stored in hoppers which are usually circular or…
Combined Convection and Radiation
Since these two modes of heat transfer are completely independent, there would be no mutual effect between them. Thus net heat exchange of the surface is the sum of the…
Analogy between Heat Transfer and Electric Circuits
There exists an analogy between the diffusion of heat and electrical charge. Just as an electrical resistance is associated with the conduction of electricity, a thermal resistance may be associated…
Radiation Heat Transfer (Heat transfer by thermal radiation)
All bodies radiate energy in the form of photons moving in a random direction, with random phase and frequency. When radiated photons reach another surface, they may either be absorbed,…
PARTICULATE SOLIDS IN BULK
General characteristics The properties of solids in bulk are a function of the properties of the individual particles including their shapes and sizes and size distribution, and of the way…
