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Chapters 2 & 3 Energy Balances Work done by the system, W = - Force applied to the system, F Δx or Expansion/Contraction of a Closed System Shaft Work.

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Presentation on theme: "Chapters 2 & 3 Energy Balances Work done by the system, W = - Force applied to the system, F Δx or Expansion/Contraction of a Closed System Shaft Work."— Presentation transcript:

1 Chapters 2 & 3 Energy Balances Work done by the system, W = - Force applied to the system, F Δx or Expansion/Contraction of a Closed System Shaft Work for an Open System Pump leads to a change in pressure at constant volume Force leads to a change in volume at constant pressure 1

2 Work Associated with Flow Lost Work Viscosity Gradient (Pressure Gradients) Temperature Gradient Concentration Gradient Friction (of a piston for instance) Reversible Process Viscosity Gradient (Pressure Gradients) Temperature Gradient Concentration Gradient Friction (of a piston for instance) 2

3 3

4 Work is a path function not a state function 4

5 5

6 6

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9 9 Steady-State Open System

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11 11

12 12 Open System

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15 15 General Equation for Open System

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22 22

23 23

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26 26

27 27

28 28 Cocurrent Countercurrent Superheater

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43 43 10,12,14,15,16,17

44 44

45 45 2.2, 2.4

46 46 2.6

47 47 7,8,12,13,15

48 48 16,17,18,21,22

49 49 2323


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