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properties of natural gas in Excel

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Natural gas is one of the most common fuels used throughout the world. There are several things to consider when working with natural gas besides heating value alone. There is also density, which is critical to determining the flow from pressure differential, as it passes through a nozzle or orifice. There is also the matter of condensation, which can occur upon compression or at low temperatures. The premier calculations are AGA8, which I often use. Less rigorous calculations can be adequate, including Redlich-Kwong-Soave, which you will find in the attached spreadsheet. I have quite a bit more information, including viscosity, if you should need it.


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