Chemical processes involve fluids flowing through equipment, which invariably involve heat transfer. Therefore, engineers and researchers who handle the chemical process need to understand fluid dynamics and heat transfer. In this lecture, the fundamentals of fluid dynamics (momentum transfer) and heat transfer will be studied. In the former, students learn about flow conditions, velocity distributions, and the energy required for fluid transport. In the latter, three heat transfer mechanisms are studied, and the heat transfer rate and temperature variation with respect to space and time are studied for each mechanism.
The goal of this course is for students to understand the phenomena of momentum and heat transfer, to acquire the ability to estimate velocity and temperature distributions and their changes over time, and to acquire the ability to solve problems related to fluid dynamics and heat transfer when designing and operating chemical plants and other equipment.
Momentum transfer, heat transfer (heat conduction, heat convection, radiation)
|✔ Specialist skills
|✔ Critical thinking skills
|✔ Practical and/or problem-solving skills
This lecture will proceed in the order of understanding the phenomena of fluid flow and heat transfer.
|Handling of continuum, viscosity and Reynolds number: Flow rate, definition of velocity, equation of continuity, viscosity and Reynolds number, turbulent flow, laminar flow, Law of conservation of mass
|Understand the continuity equation and be able to calculate Reynolds number and estimate flow conditions.
|Shell Momentum Balance, Velocity Distribution: Deriving Velocity Distribution from Momentum Balance
|A velocity distribution based on shell momentum balance can be derived.
|Pipe friction factor, energy loss: Pipe friction due to viscosity, energy loss, and energy balance (Bernoulli's law), including pump power
|Understand the energy balance of fluids and be able to design pipelines.
|Heat Conduction: Fourier's law, thermal resistance
|Understand the concept of heat transfer by heat conduction and thermal resistance.
|Unsteady Heat Transfer, Fin: Heat Transfer Enhancement by Fin, Unsteady heat conduction, Lump model, Heat transfer enhancement by fins
|To be able to estimate the temporal and spatial variation of temperature due to unsteady heat conduction. Understand the effect of heat transfer enhancement by fins.
|Convective Heat Transfer: Forced and natural convection, heat transfer coefficient, Nu number, Pr number
|Heat transfer by convective heat transfer can be estimated.
|Radiative Heat Transfer: Fundamentals of Radiative Heat Transfer, Stefan-Boltzmann's Law
|Understand the concept of radiative heat transfer.
To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.
Shiro YOSHIKAWA, "Basic Transport Phenomena", Kagakudojin (2015) Ebook
Kohei OGAWA, Chiaki KURODA, Shiro YOSHIKAWA, "Fluid Flow for Chemical Engineers" Baifukan (2002)
Kohei OGAWA, Chiaki KURODA, Shiro YOSHIKAWA, "Mathematics for Chemical Engineering" Suurikogakusha (2007)
R.B.Bird, W.E.Stewart, E.N.Lightfoot: "Transport Phenomena" Revised 2nd Edition, Wiley(2006)
All text books with the titles Chemical Engineering, Transport Phenomena, Fluid Mechanics, and Heat Transfer. In addition, lecture materials will be distributed as appropriate.
Students will be evaluated on their understanding of momentum and heat transfer mechanisms and their ability to estimate velocity distributions and temperature variation with respect to space and time. Grades will be based on the final exam and assignments and exercises given during the lecture.
There are no specific course requirements, but it is desirable that students have taken related courses.