Conference Session

Contemporary Issues in Chemical Engineering Education

Collection

2010 Annual Conference & Exposition

Authors

Patrick Mills, Texas A&M-Kingsville; Anuradha Nagaraj, Texas A&M-Kingsville; Srivenu Seelam, Texas A& M University-kingsville; Ali Pilehvari, Texas A&M University-Kingsville

Tagged Divisions

Chemical Engineering

   ux  uy  uz  0 (19)  t   x y z   x y y  zHeat transfer in the flowing fluids occurs by both convection and conduction. The energybalance for the flowing fluids in the pipes is: T  T T T    2T  2T  2T C p  C p  u x  uy  uz    k x 2  k y 2  k z 2   Q (20) t  x y z   x y z After obtaining the components of the velocity vector by solving the Navier-Stokes equations,the energy balance equation can be solved and the temperature profiles can be determined.iii. Boundary ConditionsFor the Navier-Stokes equations, the

Conference Session

Chemical Engineering Education: Upperclass Years

Collection

2010 Annual Conference & Exposition

Authors

Randy Lewis, Brigham Young University; Thomas Knotts, Brigham Young University; W. Vincent Wilding, Brigham Young University; William Pitt, Brigham Young University; Morris Argyle, Brigham Young University

Tagged Divisions

Chemical Engineering

) and Newton’s law of cooling. Students will understand conduction and convection resistances, and be able to use3.4.2 q= ΦT / ΥRes and q= UA Φ Tlm. Students will understand q = hA∀ΦT and how h is qualitatively related to Nu, Re, 3.4.3.1 and Pr, and how to obtain a value for h - qualitative problem.3.4.3 Students will understand q= h A Φ T and how h is qualitatively related to Nu, Re, 3.4.3.2 and Pr, and how to obtain a value for h - quantitative problem. Students will understand Fick’s law and the contributions to the flux arising from a3.5.1

Conference Session

Chemical Engineering Education: Upperclass Years

Collection

2010 Annual Conference & Exposition

Authors

Richard Turton, West Virginia University; Joseph Shaeiwitz, West Virginia University

Tagged Divisions

Chemical Engineering

the process. The specifics of equipmentdesign and simulation for other batch unit operations (distillation, filtration, crystallization, etc.)are not covered but are left for specific operations related to the group project.As an example of the differences between unsteady, batch operation and continuous operation,consider the preheating of a batch reactor with preheating of a continuous reactor in a continuousheat exchanger. The familiar, steady-state equations for a heat exchanger are the energybalances and the heat-exchanger design equation (assuming a utility of condensing steam, forexample) Q ? m& p C p , p ΦT p ? m& s νs ? UAΦTlm F (1)where the subscript p represents the

Conference Session

Learning By Doing in Chemical Engineering Education

Collection

2010 Annual Conference & Exposition

Authors

Larry Glasgow, Kansas State University; David Soldan, Kansas State University

Tagged Divisions

Chemical Engineering

. Suppose we write Q ? hAΦT .We plan to exchange heat between the exhaust manifold and the ambient air, and weassume T∞ =100 ″F. Ducting will carry the air from the front of the vehicle to theexchanger. We estimate the available heat transfer surface area at about 1 ft2 (is this Page 15.1018.15reasonable?). We select an arbitrary value for the heat transfer coefficient, say 100Btu/(hr ft2 °F); although this is too large to be realistic, we find Q=(100)(1)(900)=90,000 Btu/hr.This rate of heat transfer corresponds to about 35 hp or 26 kW. If this were realizablewe would not need much of an IC engine at all! However, it is likely

Conference Session

Chemical Engineering Education: Underclass Years

Collection

2010 Annual Conference & Exposition

Authors

Kwannin Kuo, Lunghwa University of Science and Technology; Pao-Chi Chen, Lunghwa University Science and Technology; Meei-Ruey Hsu, Ming-Chuan University

Tagged Divisions

Chemical Engineering

.Table 4 Expert survey results in the pilot and main study Pilot Study Main Study Average Q. D. Average Q. D. Knowing Chemistry 4.25 0.5 4.41 0.5 Measurement and unit 4.468 0.5 4.53 0.5 Atomic theory and structure 4.375 0.5 4.09 0.5 Chemical formula and nomenclature 4.468 0.5 4.37 0.5 Chemical Equations 4.468 0.5 4.30 0.5 Mass and the mole of matter