Measuring and testing – Volumetric content measuring
Patent
1997-09-25
1999-10-26
Noori, Max
Measuring and testing
Volumetric content measuring
141 4, G01F 1700, B65B 3100
Patent
active
059707860
ABSTRACT:
A compressed natural gas (CNG) vehicle refueling system is designed for refueling fleets of vehicles with identical fuel tanks. The amount of CNG dispensed into the tanks may be closely approximated without the use of a flow meter. An initial standardized volume is calculated based upon the ambient temperature, the initial pressure level and an approximate compressibility of the gas. Gas is dispensed into the fuel tank to a desired pressure which is confirmed with a pressure gage. A final standardized volume of gas contained within the fuel tank is calculated based upon the final pressure level and assuming no change in the compressibility of the gas. The initial standardized volume of gas is subtracted from the final standardized volume of gas to yield an actual volume of gas dispensed from the storage vessel. Empirically derived temperature correction factors may be used to generate an even more accurate approximation of CNG dispensed. The temperature correction factors compensate for the difference in temperature between operating temperatures and the standardized temperature of zero degrees celsius.
REFERENCES:
patent: 4527600 (1985-07-01), Fisher et al.
patent: 4956996 (1990-09-01), Morris
patent: 5628349 (1997-05-01), Diggins et al.
Krasnov Igor
Smith Robert S.
Aw-Musse Abdullahi
Bradley James E.
Noori Max
LandOfFree
Method for measuring compressed natural gas does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for measuring compressed natural gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for measuring compressed natural gas will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-751425