ČSN EN ISO 20765-1

Natural gas - Calculation of thermodynamic properties - Part 1: Gas phase properties for transmission and distribution applications

Dostupné jazyky: Anglicky

Dostupné prevedenie: Tlačené

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Podrobné informácie

Označenie: ČSN EN ISO 20765-1

Dátum vydania: 01.04.2019

Stránok: 56

Krajina: Česká technická norma

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Anotácia

This part of ISO 20765 specifies a method of calculation for the volumetric and caloric properties of natural gases, natural gases containing synthetic admixture and similar mixtures, at conditions where the mixture can exist only as a gas.
The method is applicable to pipeline-quality gases within the ranges of pressure, p, and temperature, T, at which transmission and distribution operations normally take place. For volumetric properties (compression factor and density), the uncertainty of calculation is about 0,1 % (95 % confidence interval). For caloric properties (for example enthalpy, heat capacity, Joule-Thomson coefficient, speed of sound), the uncertainty of calculation is usually greater

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