Gallery Tutorial [TECHNICAL SLIDE TRAIL] The Webel libraries for Wolfram Mathematica: With SysMLv1 models. Section SECTION: CASE STUDY: Applications of the Webel MTools class extensions to Psychrometrics (humid air physics). With SysMLv1 models. Tags and keywords Mathematica keywords MTools Webel Mathematica keywords Psy` MPsy Keywords Wolfram Wolfram Language Mathematica Mathematica:MTools Psychrometrics humid air Webel::Psy Click on the image to view it full size Up next Psy` package equations/functions (some correspond to exercise cases) Notes [CAPABILITY, EXPLANATION]{INFORMATIVE} Webel: Psy/MPsy: Psychrometrics for Mathematica: The default MPsy class is a readonly one-shot class that pre-builds many frequently used psychrometric properties (offered as public fields) using CoolProp, and also offers some value-adding methods. [CONVENTION]{STRICT} Webel: Psy/MPsy: Psychrometrics for Mathematica: Humidity ratio (absolute humidity) is indicated by a lower case 'w' and measured in mass (water) / mass (dry air) units, so the SI and IP representations are equal Real (without an explicit unit system) [CONVENTION]{STRICT} Webel: Psy/MPsy: Psychrometrics for Mathematica: Relative humidity is indicated by a lower case 'r' and measured as a Real fraction (rather than as a Percentage). [Some tables and plots do SHOW the relative humidity as a Percentage.] [CONVENTION]{STRICT} Webel: Psy/MPsy: Psychrometrics for Mathematica: Due to Mathematica's units-aware Quantity algebra system it is irrelevant what units are used for the input Quantities for creation of the MPsy objects, as long as they are dimensionally consistent! [CONVENTION]{INFORMATIVE} Webel: Psy/MPsy: Psychrometrics for Mathematica: Most CoolProp wrappers can be invoked with the dry bulb temperature 'tdb', the pressure 'p', and one (only) of the relative humidity 'r', the humidity ratio 'w', or the wet bulb temperature 'twb' [CONVENTION]{STRICT} Webel: Psy/MPsy: Psychrometrics for Mathematica: CONVENTION: 'Q' as a quantity symbol in equations indicates the energy GAINED BY the system as heat energy transfer; 'W' indicates the work DONE BY the system on its external surroundings. [CONVENTION]{STRICT} Webel: Psy/MPsy: Psychrometrics for Mathematica: Transferred heat (energy "Q") has field names with lower case 'qTot', 'qSen', 'qLat'. Heat rates (energy per time) have field names 'qDotTot', 'qDotSen', 'qDotLat' (to avoid clashes with Mathematica core) Snippets (quotes/extracts) Visit also TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class Visit also (backlinks) Related slides (includes other tutorials) Overview of the Psy` package and the "one shot" MPsy humid air state class The MPsy “one shot” humid air state class MPsy object creation examples Psychrometrics exercise references (and about some naming conventions) Introduction to the Webel All` package and the MAll universal class extending MTools Psy`Psychrometrics package variables registry Related slides (backlinks, includes other tutorials) Psy`humid air physics package: Example: Sensible Heating in SysMLv1 Psy` humid air physics package: Example: Sensible Heating results Flags Book traversal links for About the Psy` package Psychrometrics exercises slides (in this trail) Previous Up Next
