Fuel storage system and method for detecting a gas pressure therein
A fuel storage system includes a storage vessel including a dielectric liner, a voltage sensor formed by a pair of plates disposed on opposing surfaces of the liner, and a controller configured to determine a gas pressure in the storage vessel based on voltages measured by the sensor.
1. A fuel storage system comprising:
a storage vessel including a dielectric liner;
a voltage sensor formed by a pair of plates disposed on opposing surfaces of the liner; and
a controller configured to determine a gas pressure in the storage vessel based on voltages measured by the sensor.
2. The system of claim 1 wherein the controller is further configured to determine a capacitance of the sensor based on the voltages measured by the sensor.
3. The system of claim 2 wherein the controller is further configured to determine a distance between the plates based on the capacitance of the sensor.
4. The system of claim 1 wherein one of the plates is electrically grounded.
5. The system of claim 1 wherein the plates are electrically conductive.
6. A fuel storage system comprising:
a storage vessel including a dielectric liner;
a first sensor formed by a first pair of plates disposed on opposing surfaces of the liner;
a second sensor formed by (i) a second pair of plates disposed on opposing surfaces of the liner and (ii) a thermistor disposed within the storage vessel and electrically connected with one of the second pair of plates; and
a controller configured to determine a gas temperature in the storage vessel based on respective voltages across the first and second sensors.
7. The system of claim 6 wherein the controller is further configured to determine a capacitance of the first sensor based on the voltage across the first sensor.
8. The system of claim 7 wherein the controller is further configured to determine a distance between the first pair of plates based on the capacitance of the first sensor.
9. The system of claim 8 wherein the controller is further configured to determine a gas pressure within the storage vessel based on the distance between the first pair of plates.
10. The system of claim 6 wherein the controller is further configured to determine a resistance of the thermistor based on the voltage across the second sensor.
11. The system of claim 6 wherein one of the first pair of plates is electrically grounded.
12. The system of claim 6 wherein the one of the second pair of plates is electrically grounded via the thermistor.
13. The system of claim 6 wherein the first pair of plates are electrically conductive.
14. The system of claim 6 wherein the second pair of plates are electrically conductive.
15. A method for detecting a gas pressure within a storage vessel having a dielectric liner comprising:
measuring a voltage over time across a sensor formed by a pair of metal plates disposed on opposing surfaces of the liner; and
determining a gas pressure within the storage vessel based on the measured voltage across the sensor.
16. The method of claim 15 wherein determining a gas pressure within the storage vessel based on the measured voltage across the sensor includes determining a capacitance of the sensor based on the measured voltage across the sensor.
17. The method of claim 16 wherein determining a gas pressure within the storage vessel based on the measured voltage across the sensor includes determining a thickness of the dielectric liner based on the capacitance of the sensor.