Fuel cell cooling
OwnerPeter David Hoodinventor
Life of this patent
Estimating the term…
Abstract
A method of operating a fuel cell system (100) comprising a fuel cell stack (110) and a closed loop water cooling circuit for direct injection of cooling water into the stack (110), the method comprising: measuring an operational parameter of the fuel cell system (100) over a time period; adding an amount of water to the closed loop cooling circuit from the total amount of water generated during operation of the fuel cell stack (110) over the time period; and removing the amount of water from the closed loop cooling circuit generated during operation of the fuel cell stack (110) over the time period is automatically determined by the fuel cell system (100) as a function of the operational parameter.
Claims28
A method of operating a fuel cell system comprising a fuel cell stack and a closed loop water cooling circuit for direct injection of cooling water into the stack, the method comprising:
- measuring an operational parameter of the fuel cell system over a time period;
- adding an amount of liquid water to the closed loop cooling circuit from a total amount of water generated by the fuel cell stack during operation of the fuel cell stack over the time period;
- and
- removing the amount of liquid water from the closed loop cooling circuit,
- wherein the amount of liquid water as a proportion of the total amount of water generated during operation of the fuel cell stack over the time period is automatically determined by the fuel cell system as a function of the operational parameter.
A fuel cell system comprising a fuel cell stack, a closed loop water cooling circuit for direct injection of cooling water into the stack and a computerized controller, the controller being configured to automatically:
- measure an operational parameter of the fuel cell system over a time period;
- add an amount of liquid water to the closed loop cooling circuit from the total amount of water generated during operation of the fuel cell stack over the time period;
- and
- remove the amount of liquid water from the closed loop cooling circuit,
- wherein the controller is configured to remove the amount of liquid water as a proportion of the total amount of water generated during operation of the fuel cell stack over the time period as a function of the operational parameter.
(canceled)
(canceled)
Dependencies are inferred from the claim text.