VW Touran manuals

Volkswagen Touran Service Manual: Physical Principles

The four known states of water also apply to air conditioning system refrigerants.
1 -  gaseous (invisible)
2 -  vapor
3 -  fluid
4 -  solid
  Physical Principles
When water is heated in a vessel (heat absorption), water vapor can be seen to rise. If the vapor is further heated through heat absorption, the visible vapor turns into invisible gas. The process is reversible. The warmth is extracted from gaseous water, vapor forms first, then water and then ice.
A -  Heat absorption
B -  Heat emission
  Physical Principles

Heat Transfer

Every substance consists of a mass of moving molecules. The fast moving molecules of a warmer substance give off some of their energy to the cooler and thus slower molecules. As a result, the molecular motion of the warmer substance slows down and that of the colder substance is accelerated. This process continues until the molecules of both substances are moving at the same speed. They are then at the same temperature and no further heat exchange takes place.
    A/C Technology Basic Principles

    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 boi ...

    Other materials:

    Volkswagen Touran Owners Manual. Handling of wheels and tyres
    Fig. 183 Changing wheels First read and observe the introductory information and safety warnings The tyres are the most used and most underestimated parts of a vehicle. Tyres are very important as the narrow tyre surfaces are the only contact between the vehicle and the road. The service ...

    Volkswagen Touran Service Manual. Preserving Wax
    Definition: Preserving Wax -AKR 321 M15 4- Preserving Wax -AKR 321 M16 10- Edition 04/2009 Product Description Preserving Wax -AKR 321 M15 4- and Prese ...

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