Dimensionless # 1
This dimensionless quantity used in fluid dynamics can be considered as the ratio between inertial and viscus forces in a fluid.
What is Reynolds Number (Re)
This dimensionless number is the ratio of convective to conductive heat transfer. Given as hl/k
The Nusselt number (Nu)
Kinematic Viscosity, Thermal Diffusivity, and Mass Diffusivity all have these same base units.
What is L^2/T (m2/s) (ft2/s)
The meaning of CSTR
Continuously Stirred Tank Reactor
This unit operation is often used to treat boiler feed water before use.
Ion Exchange resigns.
The Schmidt Number describes the ratio of these two diffusivities.
What are Momentum and Mass Diffusivities
The Lewis number describes the ratio of these two diffusivities.
What are thermal and mass diffusivity.
One of the name of this operator.
Dc/Dt
The kind of reaction where the number and type of bonds are conserved.
What is an isodemic reaction?
This unit-op is commonly used in the pulp and paper industry to turn wood chips into pulp.
What is digester (Kaymar Digester)
What does Pe mean in the equation
What is the Peclet number.
This dimensionless number (Bi) describes the resistance of conductive heat transfer with-in a solid to the resistance of convective heat transfer at the surface.
The Biot number. Bi < 1 assume isothermal body
Bi >1 must consider internal body temperature distribution.
This operator is used to understand how a scalar property changes with respect to spatial coordinates.
What is the gradient of a scalar function?
If a gas phase reaction 2A -> 3B occurs in a plug flow reactor will the final volumetric flowrate be higher or lower out of the reactor. (assume Ideal Gas)
This type of reactor is often used to reactor gas and liquid streams. Used to produce liquid fuels from syngas.
What is a bubble column reactor.
This quantity can be converted to degrees and is technically dimensionless.
What are radians.
This analogy connects heat, mass, and friction coefficients.
What is the Chilton and Colburn J-factor analogy?
Are we going to win the jeopardy tournament?
Yes
This equation is used to describe pressure drop in packed beds in terms of Re.
What is the Ergun equation.
This device helps generate low pressures or vacuums in a process using high pressure steam.
What is a steam injector?
(Gr) Grashof number approximates the ratio of these forces acting on a fluid.
What are buoyancy and viscous forces.
This number (Sh) describe the ratio of overall mass transfer to the diffusive mass transfer. It also called the mass transfer Nusselt number.
The Sherwood number
This is the number of boundary and initial conditions needed to solve the transient heat equation in one dimension. This is a PDE that is 1st order in time and 2nd order in space.
What is one initial condition and two boundary conditions.
This is main of author of the chemical reaction engineering text used in most undergraduate Reactor classes.
Who is Scott H. Fogler? (Fogler)
This kind of refrigerator uses two coolants, the first coolant performing evaporative cooling before being absorbed into the second coolant. Heat is then needed to reset the two coolants to their initial states.
What is an absorption refrigerator. (absorption chiller)