Patent ID: 11879598
Assignee: GAZTRANSPORT ET TECHNIGAZ
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 8:
9. The method as claimed in claim 1, in which after the first value of the first parameter has been chosen, a plurality of different values of a second parameter are tested until a second fault is detected, the first and the second parameters respectively corresponding to the setpoint final temperature of the cooling process and to the variable operating on the cooling power during the execution of the process or vice versa; each test phase of one of the values of the second parameter including:
cooling the internal space (11) of the tank (1) by delivering a cooling power Pf for a cooling time Δ until the temperature in the internal space (11) of the tank (1) reaches a setpoint final temperature Tc; said cooling power Pf and said setpoint final temperature Tc being respectively representative of the first value of the first parameter and of the tested value of said second parameter or vice versa;
loading liquefied gas into the internal space (11) of the tank (1) after cooling; and
measuring a variable P1 representative of the pressure inside the thermal insulation barrier (5) the variable P1 being measured during the step of cooling the internal space (11) of the tank or during the step of loading the liquefied gas into the internal space (11) of the tank and comparing it to said at least one threshold; and
detecting the second fault when the variable P1 crosses said at least one particular threshold; and
choosing, among the plurality of values tested, as a second value of the second parameter the value of the second parameter for which, during the corresponding test phase, the cooling time Δ is the shortest and no fault has been detected.