Patent ID: 11946594
Assignee: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 11:
12. A method for provisioning a plurality of usage stations with cryogenic fluid using the mobile cryogenic tank of claim 1, wherein:
each of the plurality of usage stations comprises a liquefied gas fluid storage configured to store the cryogenic fluid, in liquid and gaseous phases, at determined thermodynamic pressure and temperature conditions; and
the mobile cryogenic tank further comprises a pressure sensor for measuring the pressure in the inner shell;
said method comprising the steps of:
measuring a temperature and pressure of the cryogenic fluid in the mobile cryogenic tank;
determining thermodynamic temperature and pressure conditions in each of the liquefied gas fluid stores of the plurality of stations; and
delivering cryogenic fluid, using the mobile cryogenic tank, to said plurality of stations, respective cryogenic fluid quantities that are dependent on the cryogenic fluid temperature and pressure measured in the mobile cryogenic tank and on the respective determined thermodynamic temperature and pressure conditions of respective ones of said plurality of stations,
wherein said plurality of stations comprises first and second stations;
said step of delivering cryogenic fluid comprises delivering cryogenic fluid to the first station and then to the second station; and
said method further comprises:
prior to said step of delivering cryogenic fluid to the first station, a step of increasing a pressure in the mobile cryogenic tank by a determined addition of energy by withdrawing some of the cryogenic fluid from the mobile cryogenic tank and heating the withdrawn cryogenic fluid before re-injecting the heated withdrawn cryogenic fluid into the mobile cryogenic tank; and
calculating future pressure and temperature equilibrium conditions that would exist in the mobile cryogenic tank after the delivery of cryogenic fluid to the first station on the basis of the aforementioned quantity of added energy and on the basis of the temperature and pressure of the cryogenic fluid in the mobile cryogenic tank,
wherein delivery of cryogenic fluid to the first station is interrupted when the calculated future pressure and temperature equilibrium conditions in the mobile cryogenic tank are higher than the determined thermodynamic temperature and pressure conditions for the store of the second station.