Batch and Continuous Flow Reactors
30 Mar 2019 | | Contributor(s):: Adam Powell
Derive expressions for productivity of plug flow and perfectly mixed continuous flow reactors, discuss quality, and describe advantages of batch reactors.
30 Mar 2019 |
Estimate flow rate of blood through two types of porous filter: an array of tubes and a packed bed of solid spheres.
Blood Flow and Vascular Deposits
Analyze the effect of increasing fat deposit thickness on blood flow through human arteries.
Bottom Filled Mold
07 Apr 2019 | | Contributor(s):: Matthew John M. Krane
Calculation of mold filling times, with and without a constant height of metal in a riser. Problem uses modified Bernoulli equation for the mechanical energy balance and the students are asked to determine which resistances are significant.
Casting of a Cylindrical Part in a Thermally Resistive Mold
30 Mar 2019 | | Contributor(s):: Matthew John M. Krane
Use of integral analysis for development of approximate solution for solidification in cylindrical thermally resistive mold.
Chemical Vapor Deposition Reactor Design
28 May 2019 | | Contributor(s):: Adam Powell
Sketch the streamlines in a tube CVD reactor and propose a design change which would lead to more uniform deposition.
Continuous Casting Hydrostatics
28 May 2019 | | Contributor(s):: Matthew John M. Krane
A mixture of hydrostatics and the modified Bernoulli equation are used to determine the effect of fluid height in a tundish on the flow rate supplying liquid steel to a continuous casting mold.
Crystal-free Zone in a Glass-Ceramic Dish
Estimate the thickness of the crystal-free surface layer in a glass-ceramic dish by relating a heat equation solution to the T-T-T diagram.
Decarburization of Solid Low-Carbon Steel
01 Aug 2019 | | Contributor(s):: Adam Powell
Calculate carbon concentration profile vs. time in low-carbon steel sheet in a decarburizing atmosphere at high Biot number.
Dimensional Analysis: Catalytic Combustion of Carbon Monoxide
16 May 2019 | | Contributor(s):: Adam Powell
Use dimensional analysis to understand how parameters and material properties determine uniformity of reactant gas concentration across porous spheres coated with catalysts.
Electron Beam Centrifugal Atomization of Metal
Use a heat balance to calculate electron beam power required to continuously heat and melt metal as it is atomized, including heat losses from the top surface due to evaporation and radiation.
Floating Bubbles Out of Molten Glass
21 Aug 2019 | | Contributor(s):: Adam Powell
Balance drag and buoyancy forces to determine the size of the largest bubble remaining in a container of molten glass after a certain amount of time.
Flow Through a Catalytic Reactor
Use porous flow theory to describe pressure-flow rate and plug/mixing behavior of flow through a packed bed of catalyst spheres.
Freezing by Radiation and Convection
Use radiation and a heat transfer coefficient to estimate the initial rate of solidification of the solid shell at the top of a casting while the temperature in the shell can be considered uniform, then set up the equation for mixed conduction/convection-radiation limited cooling.
Heat Conduction and Diffusion in Alloy Casting
Derive temperature and liquid concentration profiles during die casting of a roughly plate-shaped alloy part.
Heat Loss Through Furnace Window
19 Aug 2019 | | Contributor(s):: Matthew John M. Krane
Solution of steady state heat conduction with approximate radiation boundary condition, the applicability of which is tested.
Multicomponent Evaporation I: Evaporation of Volatile Impurities During Electron Beam Melting
14 Aug 2019 | | Contributor(s):: Adam Powell
Calculate conversion efficiency for electron beam melting for removal of lead, cadmium and zinc impurities from titanium.
Plate Glass Casting
Viscous flow of two layers down an inclined plane to model floating liquid glass on liquid tin.
Radiation in Electrostatic Levitation
15 Aug 2019 | | Contributor(s):: Adam Powell
Calculate total power radiated between square plates and a levitated spherical droplet, and discuss heat conduction mechanisms in the droplet.
Radiation in facing Target Sputtering
Calculate radiation viewfactors and rates of heat transfer between plates in a facing target sputtering apparatus for depositing yttrium-barium-copper oxide superconducting thin films.