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Managing Heat Transfer

Gain insights into the principles of heat transfer and learn about important factors such as conduction, convection, and radiation. Explore the significance of material choice, temperature control, and surface area in managing heat transfer.

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Managing Heat Transfer

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  1. Managing Heat Transfer presented by Vivek PhD Student, IGS 16th March, 2017

  2. RECALL

  3. CONDUCTION APPLY HEAT APPLY HEAT • Heat transfer due to molecular vibrations via an energy gradient • Only molecular vibrations? • Occurs in both solids and fluids TAKEAWAY: Choice of material is vital

  4. CONVECTION HEATER • Heat transfer in fluids due to bulk or macroscopic motion • Is the convection in the above picture natural/forced? TAKEAWAY: Convection can be enhanced by different techniques

  5. RADIATION • Can occur through vacuum or any transparent medium (solid or fluid) • Emission of a spectrum of electromagnetic waves due to an object's temperature TAKEAWAY: Radiation depends mainly on high temperatures

  6. CASE STUDY

  7. SUMMARY Key aspects to be considered when managing heat transfer Temperature Choice of Material Surface area

  8. Thank You

  9. FOOD FOR THOUGHT • Empirical relation: Stefan-Boltzmann law

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