Refrigeration and Cryogenics Maciej Chorowski - PowerPoint PPT Presentation

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Refrigeration and Cryogenics Maciej Chorowski

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Hermetic compressor. Semi hermetic compressor. Open compressor. Gas expansion cycles ... Flow Processes of a Basic Air Expansion System for Aircraft ... – PowerPoint PPT presentation

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Title: Refrigeration and Cryogenics Maciej Chorowski


1
Refrigeration and CryogenicsMaciej Chorowski
  • Faculty of Mechanical and Power Engineering

2
Hermetic compressor
3
Semi hermetic compressor
4
Open compressor
5
Gas expansion cycles
6
Isothermal compression of the gases
permanent - cryogenic
Non-permanent
7
Flow Processes of a Basic Air Expansion System
for Aircraft
8
Flow Processes of a Basic Air Expansion System
for Aircraft
9
Aircraft cabin air ventilation
10
Isentropic gas expansion with external work
11
Isentropic gas expansion
12
Isentropic gas expansion
  • As
  • We get
  • Where

13
Isentropic gas expansion
14
Piston expander
15
Centrifugal expander
16
General principle of cooling
X generalized force Y - generalized displacement
17
How to change the entropy
Gas system
and
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