低溫熱流學 Part I: Thermodynamics 授課教師:施陽正 博士 97 年 9 月 - PowerPoint PPT Presentation

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低溫熱流學 Part I: Thermodynamics 授課教師:施陽正 博士 97 年 9 月 PowerPoint Presentation
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低溫熱流學 Part I: Thermodynamics 授課教師:施陽正 博士 97 年 9 月

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低溫熱流學 Part I: Thermodynamics 授課教師:施陽正 博士 97 年 9 月
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低溫熱流學 Part I: Thermodynamics 授課教師:施陽正 博士 97 年 9 月

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  1. 低溫熱流學 Part I: Thermodynamics 授課教師:施陽正 博士 97年9月

  2. 1 CHAPTER Introduction and Overview

  3. I. Introduction and Overview Introduction to Thermal-Fluid Sciences Thermodynamics Heat Transfer Fluid Mechanics A Note on Dimensions and Units Closed and Open System Properties of a System Solving Engineering Problems Problem Solving Technique Conservation of Mass Principle

  4. 1.Introduction to Thermal-Fluid Sciences • The physical sciences that deal with energy and the transfer, transport, and conversion of energy are usually referred to as thermal-fluid sciences or thermal sciences. • Thermal-fluid sciences: • Thermodynamics • Fluid mechanics • Heat transfer

  5. 1.Introduction to Thermal-Fluid Sciences • Application Areas of Thermal-Fluid Sciences

  6. 1.Introduction to Thermal-Fluid Sciences

  7. 1.Introduction to Thermal-Fluid Sciences

  8. 2.Thermodynamics • Thermodynamics can be defined as the science of energy. • First law of thermodynamics • Second law of thermodynamics

  9. 2.Thermodynamics

  10. 2.Thermodynamics

  11. 2.Thermodynamics

  12. 3.Heat Transfer • Energy exists in various forms. Heat is the form of energy that can be transferred from on system to another as a result of temperature difference. • The science that deals with the determination of the rates of such energy transfer is heat transfer. • Heat is transferred by three mechanisms: • Conduction • Convection • Radiation

  13. 3.Heat Transfer

  14. 3.Heat Transfer

  15. 3.Heat Transfer

  16. 3.Heat Transfer

  17. 4.Fluid Mechanics • Fluid mechanics is defined as the science that deals with the behavior of fluids at rest (fluid statics) or in motion (fluid dynamics).

  18. 4.Fluid Mechanics

  19. 4.Fluid Mechanics

  20. 4.Fluid Mechanics

  21. 4.Fluid Mechanics

  22. 5.A Note on Dimensions and Units

  23. 5.A Note on Dimensions and Units

  24. 5.A Note on Dimensions and Units

  25. 5.A Note on Dimensions and Units

  26. 5.A Note on Dimensions and Units

  27. 5.A Note on Dimensions and Units

  28. 5.A Note on Dimensions and Units

  29. 5.A Note on Dimensions and Units

  30. 5.A Note on Dimensions and Units

  31. 5.A Note on Dimensions and Units • Dimensional Homogeneity

  32. 5.A Note on Dimensions and Units

  33. 5.A Note on Dimensions and Units

  34. 6.Closed and Open System

  35. 6.Closed and Open System

  36. 6.Closed and Open System

  37. 6.Closed and Open System

  38. 6.Closed and Open System

  39. 6.Closed and Open System

  40. 7.Properties of a System

  41. 7.Properties of a System

  42. 7.Properties of a System

  43. 7.Properties of a System

  44. 8.Solving Engineering Problems

  45. 9. Problem Solving Technique • Step1: Problem Statement Step2: Schematic Step3: Assumptions Step4: Physical Laws Step5: Properties Step6: Calculations Step7: Reasoning,Verification,and Discussion

  46. 9. Problem Solving Technique

  47. 9. Problem Solving Technique

  48. 9. Problem Solving Technique • A Remark on Significant Digits

  49. 10. Conservation of Mass Principle

  50. 10. Conservation of Mass Principle