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Psychrometric Chart Calculator Excel



Excel is my favourite tool to design Pharmaceutical HVAC systems (but not the only). I always like to have a graphical view of the system. I normally use an Excel file with all calculations in several sheets (air changes, leakages, gains, etc.), and finally, a plot summarizing the calculations. We can plot easily a psychrometric chart in Excel.




psychrometric chart calculator excel


Download File: https://www.google.com/url?q=https%3A%2F%2Furluso.com%2F2u3OTT&sa=D&sntz=1&usg=AOvVaw25g0WMgG8nmEStu5UmwGGG



In other words, moist air properties are valid for any dry-bulb temperatures below or equal to the saturation temperature of water at the same given absolute pressure, above that limit saturated moist air cannot exist.Reference PointIMPORTANT:In the used formulations for calculation of thermodynamic properties of moist air, the reference state (zero enthalpy) is set at 0 C. On some psychrometric charts (especially in the US) the reference state (zero enthalpy) is set at 0 F.


The formulations used here to calculate moist air properties are based on perfect gas relations published in 1989 ASHRAE Fundamentals Handbook, which should be accurate. Nevertheless, It is strongly recommend that you to compare the results calculated by this worksheet with a psychrometric chart. There is no error checking so you should use reasonable input values.


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