Volkswagen Polo Service & Repair Manual: Pressure and Boiling Point
The boiling point given in tables for a liquid is always
referenced to an atmospheric pressure of 1 bar (14.5 psi). If
the pressure acting on a fluid changes, its boiling point also
changes. |
For example, water boils at a lower temperature the lower
the pressure. |
The vapor pressure curves for water and refrigerant R134a
show that, at constant pressure, reducing the temperature
changes vapor to liquid (in the condenser) or that reducing the
pressure causes the refrigerant to change from liquid to vapor
(evaporator). |
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Vapor pressure curve of water |
C - |
Vapor pressure curve of water |
1 - |
Pressure acting on liquid in bar (psi) |
2 - |
Temperature in °C (°F) |
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Vapor pressure curve of refrigerant R134a |
D - |
Vapor pressure curve of refrigerant R134a |
1 - |
Pressure acting on liquid in bar (psi) |
2 - |
Temperature in °C (°F) |
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|
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The four known states of water also apply to air
conditioning system refrigerants.
1 -
gaseous (invisible)
2&n ...
The vapor pressure table for every refrigerant is published
in literature for refrigeration system engineers. This table
makes it possible to determine the vapor pres ...
Other materials:
Refrigerant Circuit with Expansion Valve
A-Low pressure side of refrigerant circuit.
B-High pressure side of refrigerant circuit.
Component
Aggregate State of Refrigerant
Pressure bar (psi) Positive Pressure
Temperature
...
Repair Paint System for Matte Painted Vehicles
Edition 04/2013
The following describes the repair paint system for matte
painted vehicles. Area of application: large surfaces/complete
painting
Application
Metal Surfaces
...
Aqua Premium System, Touch-Up System for Two Layer Colors
Edition 04/2013
Product Description/Objective
To achieve an optically flawless color shade transition in
the blended area or adjacent parts, for example fender/door.
Application Instructions
...
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