New technique for calibrating hydrocarbon gas flowmeters
Abstract
A technique for measuring calibration correction factors for hydrocarbon mass flowmeters is described. It is based on the Nernst theorem for matching the partial pressure of oxygen in the combustion products of the test hydrocarbon, burned in oxygen-enriched air, with that in normal air. It is applied to a widely used type of commercial thermal mass flowmeter for a number of hydrocarbons. The calibration correction factors measured using this technique are in good agreement with the values obtained by other independent procedures. The technique is successfully applied to the measurement of differences as low as one percent of the effective hydrocarbon content of the natural gas test samples.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1984
- Bibcode:
- 1984STIN...8426007S
- Keywords:
-
- Calibrating;
- Gas Meters;
- Hydrogen Fuels;
- Oxygen;
- Partial Pressure;
- Conversion Tables;
- Flow Measurement;
- Flowmeters;
- Gas Flow;
- Mass Flow;
- Methane;
- Natural Gas;
- Nernst-Ettingshausen Effect;
- Sensors;
- Instrumentation and Photography