# CHME 306. Transport Operations II: Heat and Mass Transfer

#### 1. Course number and name

CHME 306. Transport Operations II: Heat and Mass Transfer

#### 2. Credits and contact hours

4 credit hours = 60 contact hours per semester

#### 3. Instructor’s or course coordinator’s name

Dr. Catherine Brewer, Ph.D.

#### 4. Text book, title, author, and year

Fundamentals of Heat and Mass Transfer, 7/E by Bergman, Lavine, Incropera, and Dewitt. ISBN 9780470501979; Wiley (2011)

none

#### 5. Specific course information

a. catalog description:

Theory of heat and mass transport. Unified treatment via equations of change. Analogies between heat and mass transfer. Shell balance solution to 1-D problems in heat and mass transfer. Analysis of chemical engineering unit operations involving heat transfer. Design principles for mass transfer equipment. 4 credits. Restricted to majors.

b. prerequisites: CHME 305 and MATH 392 co-requisites: CHME 392

c. required, elective, or selected elective (as per Table 5-1): required

#### 6. Specific goals for the course

a. The student will…

• Adopt a systematic problem solving approach, consistently and effectively.
• Diagram heat flows for conductive, convective, and radiative processes.
• Find and use material property values.
• Convert and use appropriate units of energy, power, flux, etc.
• Write conservation equations for planar, cylindrical and spherical systems.
• Apply assumptions such as steady state, number of dimensions, order of magnitude, and/or constant properties to simplify conservation equations.
• Solve the energy conservation equation for the temperature distribution using appropriate boundary and/or initial conditions.
• Calculate heat fluxes into and out of a control volume.
• Draw resistance circuits and calculate the overall heat transfer coefficient, U, for compound systems.
• Calculate the temperature distribution, heat flux, efficiency, and effectiveness of extended surfaces such as fins.
• Use lumped capacitance and exact solution models to solve transient heat transfer problems.
• Calculate transport dimensionless numbers and explain what they represent.
• Use fluid velocity profiles to calculate boundary layer shapes and thicknesses.
• Calculate convection heat transfer coefficient, h, for external and internal flows using formulas and graphs of experimental results.
• Explain the causes and relative magnitudes of free convection.
• Calculate free convection coefficients using equations and experimental results.
• Label key regimes and heat transfer features of boiling and condensation curves.
• Compare and contrast parallel, cross, and countercurrent flow in heat exchangers.
• Determine the needed surface areas and/or fluid flow rates for heat exchangers given unit operation or process energy needs.
• Calculate and explain heat exchanger efficiency.
• Predict likelihood and account for consequences of fouling.
• Define radiation terminology such as blackbody, grey surface, emissivity, etc.
• Relate surface temperature to radiation wavelength and energy.
• Calculate the view factor between two surfaces and use it to calculate heat transfer.
• Write and solve the mass and molar forms of the 1-D mass conservation equations.
• Calculate absolute and relative species velocities and fluxes.
• Use heat transfer relationships and analogous equations to solve diffusion and advection mass transfer problems.
• Predict which kind(s) of heat transfer will be relevant for a given situation.
• Describe implications of problem solutions and perform additional “what if” calculations to understand patterns in the “bigger picture”.

b. Criterion 3 Student Outcomes specifically addressed by this course are found in a mapping of outcomes against all CHME courses in the curriculum.

#### 7. Brief list of topics to be covered

• modes of heat transfer
• 2-D conduction
• transient conduction
• extended surfaces
• boundary layers
• forced convection
• natural convection
• convection with phase change
• heat exchangers