伝熱・熱力学(Heat Transfer)

Textbook: J. P. Holman, Heat Transfer, 9th Edition. McGrawHill, 2001. 1. Introduction to Heat Transfer Course Description and Objectives, Review of Thermodynamics, Mode of heat transfer (heat conduction, convention, radiation), Basic law and thermal properties (Fourier’s law, thermal conductivity, heat-transfer coefficient), Energy balance equation 2. Steady-state conduction - One dimension Heat conduction through composite material, Thermal resistance, Heat conduction problems with heat sources, Overall heat-transfer coefficient, Thermal contact resistance, Fins 3. Steady-state conduction for multiple-dimension problems (1): Analytical method Analytical solution of two-dimensional heat conduction problems, Graphical analysis, Conduction shape factors 4. Steady-state conduction for multiple-dimension problems (2): Numerical method Nodal equations for finite-difference calculations, Solution technique using Gauss-Seidel iteration, Problem-solving exercises 5. Unsteady-state conduction (1): Analytical and graphical methods Lumped-heat-capacity analysis, Transient heat flow in semi-infinite solid, Convection boundary conditions, Heisler charts, Biot number, Fourier number 6. Unsteady-state conduction (2): Transient numerical method Forward and backward finite-difference formulations, Problem-solving exercises 7. Principles of heat convection (1): Hydrodynamic boundary layer Laminar and turbulent boundary-layer flows on a flat plate, Integral momentum analysis of laminar boundary layer 8. Principles of heat convection (2): Energy equation of boundary layer Thermal boundary layer, Integral energy analysis of laminar flow, Prandtl number, Nusselt number, Heat transfer in laminar and turbulent tube flows 9. Empirical and practical relations for forced-convection heat transfer Empirical relations for pipe and tube flows, Heat transfer in flow across cylinders/spheres and along flat plates 10. Natural convection systems: Free-convection heat transfer on a vertical flat plate, Grashof number, Empirical relations for free convection, Free convection in enclosed spaces, combined free and forces convection

In this class, a total of 13 lectures will be given covering basic principles of heat transfer phenomena, namely, heat conduction, convection, radiation. Students are responsible to attend the lectures and follow up the lecture material by reading the textbook to deepen their understandings on the subject.

期末試験（70%）と各回に与えるレポート課題（30%）の総合点により評価する。期末試験は，資料閲覧可と不可の2種類の試験を行う予定。 Final Examination will be a combination of open-book and closed-book exams. Two examinations will be conducted online. Grading will be determined by: Final Exam 70% and Homework and performance 30%.

Students are responsible to attend the lectures and follow up the lecture material by reading the textbook to deepen their understandings on the subject.

＜前提となる知識・項目＞ 熱力学と流体力学を事前に履修しておくことが望ましい。 本講義ではExcel及びMATLABを用いた数値解法についても触れるため、計算環境(OSは問わない)を各自準備すること。 Fundamental knowledge on fluid mechanics AND thermodynamics is necessary for understanding heat convection in flow streams. Students should be familiar with MS Excel because it will be often used for analytical and numerical calculations. MATLAB can be used for these calculations. UTokyo MATLAB Campus-Wide License: https://www.u-tokyo.ac.jp/***** ＜備考＞ J.P.Holmanのテキストは，履修学生に限って貸与する。講義だけでは時間が限られているので、各自で積極的にテキスト内の練習問題を解くことを推奨する。熱力学は前期課程で学習しているはずであるから、各自で参考書を購入して積極的に自習を行うこと。熱放射については講義で簡単に触れる程度にするが、太陽エネルギーや地球温暖化問題などを考える上での重要な基礎になるので、教科書の残る部分に関する積極的な勉強を期待する。 毎回の授業内容に沿って参考書・参考資料等を用い事前に学習すること。 また、授業後は、ノート等をもとに復習すること。 Email address: 三輪*****）