Volkswagen Golf Service & Repair Manual: Pressure and boiling point
| The boiling points given in the table below are always based
on an atmospheric pressure of 1 bar. If the pressure on a liquid
is changed, its boiling point changes also. |
| It is well known that, for example, the lower the pressure,
the lower the temperature at which water boils. |
| The vapour pressure curves for water and for refrigerant
R134a show that at constant pressure and falling temperature the
vapour becomes liquid (in the condenser), and that when pressure
drops, the refrigerant changes from liquid into the vapour state
(evaporator). |
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| Vapour pressure curve for water |
| C - |
Vapour pressure curve for water |
| 1 - |
Pressure on the liquid in bar (absolute) |
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| Vapour pressure curve for refrigerant R134a |
| D - |
Vapour pressure curve for refrigerant R134a |
| 1 - |
Pressure on the liquid in bar (absolute) |
|
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Every material consists of a mass of moving molecules. The fast moving
molecules of a warmer material loose part of their energy to slower molecules
possessing less heat. This slows down the molec ...
The vapour pressure table for each refrigerant is published
in the literature for refrigeration engineers. This table shows
the vapour pressure exerted on the liquid ...
Other materials:
Diagonal washout
Diagonal washout on a tyre
Diagonal washout runs at an angle of approx. 45° to the
direction of rotation.
It usually occurs at one point only, but can also occur at
several points around the circumference of the tyre.
...
Repairing rain and light sensor, Valeo
Remove rain and light sensor -G397-
→ Chapter.
–
Carefully remove sensor foil -2-
or any sensor foil residues from rain and light sensor -G397--1-.
...
Removing and installing trim panel for dash panel
Special tools and workshop equipment
required
Removal wedge -3409-
Removing
–
Release trim panel -1- from
catches - ...
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Heat always flows from warmer to colder material
Vapour pressure table for refrigerant R134a