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THERMAL ENGINEERING-I

THERMAL ENGINEERING-I. MECHANICAL ENGINEERING DEPARTMENT CIET. Synopsis. Introduction Air-Cycles Fuel-air cycles Actual cycles Engine systems. Introduction. Heat Engine Classification I.C.Engine Components and Nomenclature Classification Applications Working principle.

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THERMAL ENGINEERING-I

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  1. THERMAL ENGINEERING-I MECHANICAL ENGINEERING DEPARTMENT CIET

  2. Synopsis • Introduction • Air-Cycles • Fuel-air cycles • Actual cycles • Engine systems

  3. Introduction • Heat Engine • Classification • I.C.Engine • Components and Nomenclature • Classification • Applications • Working principle

  4. Classification of Heat Engines

  5. Classification of IC Engines

  6. Reciprocating (Multi cylinder) Reciprocating (Single cylinder) Rotary (Wankel) Single rotor Twin rotor Opposed Cyl(2/4/6) Inclined Cyl(2/4/6) Vee Cyl (4/6/8/12) Classification of IC Engines

  7. Application of Engines

  8. Basic Engine Components

  9. Basic Engine Components Cylinder block Cylinder

  10. Piston Cylinder Basic Engine Components Cylinder block

  11. Small end of CR Piston Cylinder Connection rod Big end of CR Basic Engine Components Cylinder block

  12. Small end of CR Piston Cylinder Connection rod Big end of CR Basic Engine Components Gudgeon pin Cylinder block

  13. Small end of CR Piston Cylinder Basic Engine Components Gudgeon pin Cylinder block Connection rod Big end of CR Crank Crank shaft

  14. Piston Cylinder Basic Engine Components Gudgeon pin Small end of CR Cylinder block Connection rod Big end of CR Crank Crank pin Crank shaft

  15. Small end of CR Piston Cylinder Crank case Basic Engine Components Gudgeon pin Cylinder block Connection rod Big end of CR Crank Crank pin Crank shaft

  16. Small end of CR Piston Cylinder Crank case Basic Engine Components Gudgeon pin Water jacket for cooling Cylinder block Connection rod Big end of CR Crank Crank pin Crank shaft

  17. Inlet manifold Small end of CR Piston Cylinder Crank case Basic Engine Components Gudgeon pin Water jacket for cooling Cylinder block Connection rod Big end of CR Crank Crank pin Crank shaft

  18. Inlet manifold Small end of CR Piston Cylinder Crank case Basic Engine Components Inlet valve Gudgeon pin Water jacket for cooling Cylinder block Connection rod Big end of CR Crank Crank pin Crank shaft

  19. Exhaust manifold Inlet manifold Small end of CR Piston Cylinder Crank case Basic Engine Components Inlet valve Gudgeon pin Water jacket for cooling Cylinder block Connection rod Big end of CR Crank Crank pin Crank shaft

  20. Exhaust valve Exhaust manifold Inlet manifold Small end of CR Piston Cylinder Crank case Basic Engine Components Inlet valve Gudgeon pin Water jacket for cooling Cylinder block Connection rod Big end of CR Crank Crank pin Crank shaft

  21. Spark plug Exhaust valve Exhaust manifold Inlet manifold Small end of CR Piston Cylinder Crank case Basic Engine Components Inlet valve Gudgeon pin Water jacket for cooling Cylinder block Connection rod Big end of CR Crank Crank pin Crank shaft

  22. Reciprocating motion into Rotary motion Crank pin Connecting rod Crank Crank shaft

  23. Reciprocating motion into Rotary motion

  24. Reciprocating motion into Rotary motion

  25. Cylinder Piston Combustion chamber Inlet manifold Exhaust manifold Inlet and Exhaust valves Spark plug Connecting rod Crankshaft Piston rings Gudgeon pin Cam shaft Cams Fly wheel Fig. Cross-section of a SI Engine Basic Engine Components

  26. Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r Piston diameter or Cylinder bore

  27. Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r TDC

  28. Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r TDC BDC

  29. Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r TDC Stroke BDC

  30. TDC BDC Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r Stroke

  31. IDC ODC Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r

  32. IDC ODC Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r

  33. Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r TDC Stroke BDC

  34. Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r Clearance volume (Vc) TDC Stroke BDC

  35. Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r Clearance volume (Vc) TDC Swept volume (Vs) Stroke BDC

  36. Nomenclature • Cylinder bore (d) • Piston area (A) • Dead Centre • TDC/IDC • BDC/ODC • Stroke (L) • Vs , Vc, r Clearance volume (Vc) TDC Swept volume (Vs) Stroke BDC Compression ratio,

  37. I.V.C E.V.C TDC P BDC V Working of 4-S SI Engine

  38. I.V.O E.V.C TDC P BDC V Air + Fuel mixture from carburetor Working of 4-S SI Engine 0 Suction

  39. I.V.O E.V.C TDC P BDC V Air + Fuel mixture from carburetor Working of 4-S SI Engine 0 Suction

  40. I.V.O E.V.C TDC P BDC V Air + Fuel mixture from carburetor Working of 4-S SI Engine 0 Suction

  41. I.V.C E.V.C TDC P BDC V Working of 4-S SI Engine PV=C Compression 1 0 Suction

  42. I.V.C E.V.C TDC P BDC V Working of 4-S SI Engine PV=C Compression 1 0 Suction

  43. I.V.C E.V.C TDC P BDC V Working of 4-S SI Engine 2 PV=C Compression 1 0 Suction

  44. I.V.C E.V.C TDC P BDC V Combustion initiation by Spark plug Working of 4-S SI Engine 3 V=C Combustion 2 PV=C Compression 1 0 Suction

  45. I.V.C E.V.C TDC P BDC V Working of 4-S SI Engine 3 V=C Combustion PV=C Expansion 2 PV=C Compression 1 0 Suction

  46. I.V.C E.V.C TDC P BDC V Working of 4-S SI Engine 3 V=C Combustion PV=C Expansion 2 PV=C Compression 1 0 Suction

  47. I.V.C E.V.C TDC P BDC V Working of 4-S SI Engine 3 V=C Combustion PV=C Expansion 2 4 PV=C Compression 1 0 Suction

  48. I.V.C E.V.O TDC P BDC V Combustion products Working of 4-S SI Engine 3 V=C Combustion PV=C Expansion 2 4 PV=C Heat rejection Compression V=C 1 0 Suction 5 Exhaust

  49. I.V.C E.V.O TDC P BDC V Combustion products Working of 4-S SI Engine 3 V=C Combustion PV=C Expansion 2 4 PV=C Heat rejection Compression V=C 1 0 Suction 5 Exhaust

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