Div2Lec02

# Div2Lec02 - Lecture 2 Review 1st Law Open System CV A mout...

This preview shows pages 1–10. Sign up to view the full content.

Lecture 2: Review - 1 st Law Open System: CV . . m out A . . m in B Q W A: a small slug of fluid at the inlet enters the CV and brings its energy with it. B: a small slug of fluid leaves the CV 2.1 g

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Control Volume Analysis CV A onservation of mass: B Conservation of mass: » At time t = 0, » At time t = dt, 2.2
Continue Conservation of Mass Taking the difference: Dividing by dt and letting dt 0: Generalizing to multiple inlets and outlets: 2.3

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Continue Conservation of Mass For steady-state operation: 2.4
Continue 1 st Law for Open Systems CV A Conservation of Energy B » At t = 0 » At t = dt »T a k i n g the difference: 2.5

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Continue 1 st Law for Open Systems We know: Solving for: Consider dE A /dt and dE B /dt If the regions A and B are infinitesimally small, then constant 2.6 e i is constant
Continue 1 st Law for Open Systems Generalizing for multiple inlets and outlets, we obtain: 2.7

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Continue 1 st Law for Open Systems Going back to the first law equation: 2.8
Continue 1

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This document was uploaded on 04/23/2011.

### Page1 / 17

Div2Lec02 - Lecture 2 Review 1st Law Open System CV A mout...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online