Device and method for directly measuring calorific energy contained in a fuel gas
US6536946B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2000 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Sep 8, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention concerns a device (10) for measuring calorific energy contained in a fuel gas transported in a pipe (16) comprising a gas meter (12) measuring a volume V in pressure conditions P and temperature conditions T of a gas circulating in said pipe and an apparatus (14;52;63) to determine the gas calorific power H. The invention is characterized in that said apparatus for determining calorific power measures at least one physical variable proportional to the number of molecules of the gas different constituents in a given volume and is placed as near as possible to the gas meter so as to determine the calorific power H(P,T) in similar pressure P and temperature T conditions as those wherein the gas volume V(P,T) is measured, said device then determining the calorific energy H(P,T) V(P,T) contained in the gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.