Natural Gas Props Calculator app for iPhone and iPad

The Natural Gas Properties app calculates thermodynamic and calorific properties of Natural Gas mixtures.

Calculated Properties:

- Molar Weight
- Specific Gravity
- Compressibility Factor
- Heat Capacity
- Thermal Conductivity
- Dynamic Viscosity
- Mass/Mole/Volumetric Lower/Higher Heating Values
- Wobbe Index
- Motor Octane Number (MON)
- Methane Number (MN)
- Hydrocarbon Dew Point @ P
- Hydrocarbon Dew Point @ 1 atm
- Water Dew Point @ P
- Water Dew Point @ 1 atm
- Water Content in ppmv

Basis:

Compressibility Factor, Density and Dew Points are calculated with the Peng-Robinson Equation of State (PR EOS). Heating Values are calculated according to Brazilian Standard NBR 15213 (Calculation of calorific values, density, relative density and Wobbe index of combustible gases from composition), which is equivalent to the ISO Standard 6976:1995 (Natural gas - calculation of calorific values, density, relative density and Wobbe index from composition).

Input Options:

Input options include mole and mass fractions/percentages, temperature and pressure.
Supported Systems of Units: SI, CGS and Imperial (English).

Output Options:

- Table view
- Shareable text report

Disclaimer:

The data and information within this app has been obtained from a wide variety of literature sources. While reasonable care has been exercised in the collection of data and testing of this software, the author disclaims any warranty, expressed or implied, as to the accuracy or reliability of the data or calculations contained therein. The results of calculations obtained from this app yield approximate results, which will not always be suitable for every application. The software is designed for use by trained professional personnel and is not a substitute for sound professional judgment. It is the sole responsibility of the user to validate the data presented by this app and to determine whether the results of this program are accurate and suitable for any specific purpose. No guarantee of accuracy or fitness for any purpose is expressed or implied. The author and contributors strongly recommends that the data be checked against other sources and/or methods before use and application. The author of the app shall not be held liable for any direct, indirect, consequential or incidental damages incurred through use of the data or calculations.