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Thermodynamics A214 Chapter 4 Summary Notes R59,00   Add to cart

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Thermodynamics A214 Chapter 4 Summary Notes

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Handwritten summary notes with examples of chapter 4 in the Thermodynamics - An Engineering Approach Ninth Edition textbook. Includes explanations, annotations, and answered examples from the textbook.

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  • Chapter 4
  • May 9, 2021
  • 16
  • 2020/2021
  • Summary
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Chapter 4
Energy Analysis of Closed
systems
:




First of of
Energy
conservation
Thermodynamics
Law -




AKE
heat → Qin -
Q out
DPE
+ win Wont =
work → -




A -0
→ + Ein -
E out
energy EW



crossing changing over
boundaries time


Notation : Q inte system is ④
W done ④
work done →
by system going± is

system
on - we


E info system is ④


In closed No mass in / out but still
a
system
-



going
heat and work

One of work done is
type
-




boundary work

↳ When the
boundary moves


eg Expansion
. → work out +


Compression → work in -

, Volume

Wb =
fpdv
it in
boundary
work
pressure

p
• ① Expansion

④~•②
^ ^


•.②
④ >
v


sv
contraction




Wb -
This is
expansion
( workout)
for a
cycle :




WneE=WbouE - Wbin

Constant volume :



p
^ ①
@



" " "


rigid
"
tank isometric

>
✓ Wb=0


Constant pressure
:p
^
① ② " " "
"

• .
isobaric
weighted piston
"
"
piston not attached to shaft
>
v
Vi U2
Expansion -
workout
Wb= PDV
workin
compression -

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