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heat_transfer_presentations_updated.pptx
- 1. Heat Transfer -Slide 1 • Introduction to Heat Transfer
- 2. Heat Transfer -Slide 2 • Modes of Heat Transfer
- 3. Heat Transfer -Slide 3 • Conduction Overview
- 4. Heat Transfer -Slide 4 • Fourier’s Law of Conduction
- 5. Heat Transfer -Slide 5 • Conduction Examples
- 6. Heat Transfer -Slide 6 • Thermal Conductivity
- 7. Heat Transfer -Slide 7 • Convection Overview
- 8. Heat Transfer -Slide 8 • Newton’s Law of Cooling
- 9. Heat Transfer -Slide 9 • Types of Convection
- 10. Heat Transfer -Slide 10 • Convection Examples
- 11. Heat Transfer -Slide 11 • Radiation Overview
- 12. Heat Transfer -Slide 12 • Stefan-Boltzmann Law
- 13. Heat Transfer -Slide 13 • Emissivity
- 14. Heat Transfer -Slide 14 • Radiation Examples
- 15. Heat Transfer -Slide 15 • Heat Exchangers
- 16. Heat Transfer -Slide 16 • Types of Heat Exchangers
- 17. Heat Transfer -Slide 17 • Heat Transfer Coefficients
- 18. Heat Transfer -Slide 18 • Insulation
- 19. Heat Transfer -Slide 19 • Thermal Resistance
- 20. Heat Transfer -Slide 20 • Thermal Circuits
- 21. Heat Transfer -Slide 21 • Combined Heat Transfer
- 22. Heat Transfer -Slide 22 • Practical Applications
- 23. Heat Transfer -Slide 23 • Industrial Uses
- 24. Heat Transfer -Slide 24 • Energy Efficiency
- 25. Heat Transfer -Slide 25 • Summary
Editor's Notes
- #1 • Heat transfer is energy movement due to temperature difference. • Three modes: conduction, convection, radiation.
- #2 • Conduction: heat through solids. • Convection: heat through fluids. • Radiation: electromagnetic waves.
- #3 • Conduction requires matter. • Faster in metals due to free electrons.
- #4 • q = -kA(dT/dx) • k = thermal conductivity.
- #5 • Cooking utensils, heat in walls, engines.
- #6 • Metals → high k • Insulators → low k.
- #7 • Convection involves fluid motion. • Natural and forced convection.
- #8 • Q = hA(Ts − T∞) • h = convection coefficient.
- #9 • Natural = buoyancy-driven • Forced = fans, pumps.
- #10 • AC systems, boilers, radiators.
- #11 • Radiation needs no medium. • Travels at speed of light.
- #12 • Q = σεAT⁴ • σ = constant.
- #13 • Emissivity 0–1. • Blackbody = 1.
- #14 • Solar heat, fire, heaters.
- #15 • Devices to transfer heat between fluids.
- #16 • Shell & tube, plate, finned.
- #17 • Affects heat transfer rate. • Depends on fluid type.
- #18 • Reduces heat loss. • Wool, glass wool, foam.
- #19 • R = L/kA • Higher R → better insulation.
- #20 • Combination of resistances in series/parallel.
- #21 • Real systems involve all three modes.
- #22 • Cooling systems, engines, buildings.
- #23 • Manufacturing, petroleum, power plants.
- #24 • Reducing heat losses saves energy.
- #25 • Summary of concepts & formulas.