| The tank must have a vapor chamber connected to the liquid chamber. As the temperature rises, the liquid expands. The space available in the vapor chamber decreases. At a certain point, the tank will contain only liquid. At this point, a small increase in temperature would be enough to create extremely high pressures in the tank, considering that the liquid continues expanding within its confined space. The resulting forces are strong enough to destroy the tank. To avoid overfilling the tank, the legislation regarding pressure determines the amount (in kilograms) of refrigerant gas that may be used, depending on the internal capacity of the tank, in liters. This filling factor, multiplied by the internal volume, gives the filling volume. In automobiles, the refrigerant gas volume to be used is 1.15 kg/l. |
|
|
|
