The Foundation of Release System and Investigation on the Calculation Method on Energy Determination of Natural Gas |
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| Chi Wang, Chunhui Li, Jingan Wang, Tao Li |
- Abstract:
- To achieve the change of trade balance from volumetric determination to energy determination for natural gas in China. The smallest release system of energy determination for natural gas was built. On the base of analyses of energy determination, the uncertainty for this system was conducted taking an example of Beijing experimental station. The results showed that the uncertainty of energy determination could be lower than 1 % (k = 2), when the measurement process was kept in good control. On the other hand, because the influence of the flowrate and composition on energy determination was both considered for the quantity weighted averaged calorific value, which might be more suitable relative to arithmetic averaged calorific value when the value of flowrate or composition of natural gas had big change, or there were more than one natural gas sources in one consuming zone.
- Keywords:
- Metrology, Natural gas, Energy determination, Uncertainty
- Download:
- IMEKO-TC9-2010-073.pdf
- DOI:
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