I have some functions that I use for the comfort calculator components that help ensure the readability of data in these different formats. Let me know your thoughts on this and, if you agree, I can also help get your component in that format. This will also make it clearer to new users how the wet bulb is derived from air temperature, humidity, and pressure. This will allow people to easily calculate wet bulb if they have single values of dry bulb/relhumid or if they have the data in a format that is not an EPW but they can get it into GH. Let me know if you need any guidance on putting together a pull request as I know it can be confusing for even seasoned github users.įinally, I have one suggestion that might make your component more applicable to a wide variety of cases and this is to have three separate inputs for drybulb temperature, relative humidity, and barometric pressure instead of one ‘epwFile’ input. That way, we can include it in the release notes and we can spread awareness about it. In any case, would you be able to send a pull request of an updated Ladybug_Ladybug and your new component to the Ladybug github? It would be nice to have this included in the next stable release of Ladybug that is happening around next Sunday (the 24th). Density Altitude: the pressure altitude corrected for non-standard temperature. Pressure Altitude: the altitude displayed on the altimeter when the Kollsman window is set to 1013.25 mb or 29.92 inHg. ![]() I know the “while” loop in your function might make this difficult but, if you can see any way to reverse-calculate dry-bulb and absolute humidity from wet bulb and relative humidity, this might make this application more elegant. QNH: the barometric altimeter setting that causes the altimeter to read airfield elevation above mean sea level while the aircraft is on the ground. In this equation, RH means relative humidity, E is the amount of water vapor, and Es refers to the amount of water content that would be in the air with an equal temperature and pressure level. Notably, this bit of code that I use in the pych chart to derive a dry bulb temperature from wet bulb is really hacky and its brevity is more of an expression of my laziness than anything else. Here are some formulas you can use: Equation 1: RH E/Es × 100. Right now, all of the functions that I have involving wet bulb temperature are fairly hacky and having your elegant function there would be a huge help in present+future cases. This wet bulb component is awesome and, if you are ok with it, I think that we should integrate the component into the Ladybug ‘AnalyzeWeatherData’ tab and your ‘WBFUNC’ function for wet bulb temperature into the Ladybug_Ladybug ComfortModels class. ![]() You are rocking these forums, man!!! The helpfulness of your comments never ceases!
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