Webel: Psy/MPsy: Psychrometrics for Mathematica: '$HC' in a function name indicates pure sensible heating or cooling (with no change in water vapour content). Such functions may also be used in the pure sensible portion of a 2-step treatment.

Webel: SysML4Mathematica: Convention: A prefix '$doc' indicates a documentation String for each primary variable/quantity (argument or output)

Webel: SysML4Mathematica: Convention: A prefix 'sym$' indicates a markup variable "symbol" for a documented variable. It need not be a String, but each referenced part MUST be a String, not a raw Mathematica Symbol, to avoid namespace clashes!

Webel: Psy/MPsy: Psychrometrics for Mathematica: A suffix '$wat$i' indicates water (liquid or vapour) flow TO (into) the humid air mixture. A suffix '$wat$o' indicates water (liquid or vapour) flow FROM (out of) the humid air mixture.

Webel: Psy/MPsy: Psychrometrics for Mathematica: A suffix '$sat' indicates a humid air mixture quantity at saturation (relative humidity = 1 or degree of saturation = 1).

Webel: Psy/MPsy: Psychrometrics for Mathematica: A suffix '$ha' indicates a HUMID air mixture variable, quantity, or function or a PER humid air mass quantity.

Webel: Psy/MPsy: Psychrometrics for Mathematica: A suffix '$a' indicates a DRY air component variable, quantity, or function. A suffix '$da' indicates a HUMID air mixture quantity PER dry air.

Webel: Psy/MPsy: Psychrometrics for Mathematica: A suffix '$wat' indicates a water-related variable, quantity, or function (note that 'w' is reserved for the humidity ratio).

Webel: Psy/MPsy: Psychrometrics for Mathematica: Variable/quantity registry and naming conventions, with symbol markup.

Webel: Psy/MPsy: Psychrometrics for Mathematica: The term 'steam' (indicated in variable names with a suffix '$s') is reserved for water vapour created through boiling.

Webel: Psy/MPsy: Psychrometrics for Mathematica: A suffix '$g' in a water-related variable name refers to water vapour (a special case of gas) or steam. A suffix '$f' refers to liquid (fluid) water. [Although a gas is a fluid.]

Webel: SysML4Mathematica: POLICY: Handle flow sign changes via a single negative (not duplicated and "adjusted" algebra). This strategy may come at a very slight performance cost (for benefit of more robustness).

SysML4Mathematica: Example: Block Definition Diagram overview of ConstraintBlocks, their parameters, and ConstraintBlock usages representing lower-level Webel Psy library Psychrometrics functions and CoolProp wrapper usages Gallery Tutorial TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class Section Slide kind SysML Block Definition Diagram (BDD)

Webel: Psy/MPsy: Psychrometrics for Mathematica: Convention: Option variable names are prefixed with '$opt$psy'

CoolProp: Mathematica wrapper: Psychrometrics (humid air): When obtaining the dew point temperature 'Tdp' at the pressure 'P', humidity ratio 'W', and dry bulb temperature 'Tdb', the 'Tdb' value will be "ignored" but MUST be within a sensible range!

Webel: Psy/MPsy: Psychrometrics for Mathematica: The default newPsy[tdb] builder accepts the pressure 'p' as an option, which defaults to sea level atmospheric pressure.

Webel: Psy/MPsy: Psychrometrics for Mathematica: The CoolProp "wrappers" of the Psy library in fact wrap lower-level wrappers (bindings) for CoolProp for Mathematica

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.

Webel: Psy/MPsy: Psychrometrics for Mathematica: The default newPsy[tdb] builder requires the dry bulb temperature 'tdb', and one (only) of the relative humidity 'r', the humidity ratio 'w', or the wet bulb temperature 'twb' (as options).

SysML4Mathematica: Example 11 [B]: Total (qDotTot), sensible (qDotSen), and latent cooling (qDotLat) required for cooling air: Using Webel MPsy objects and SysML Activity Diagrams Gallery Tutorial TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class Section Slide kind SysML Activity Diagram

SysML4Mathematica: Example 11 [A] Total (qDotTot), sensible (qDotSen), and latent cooling (qDotLat) required for cooling air: Using CoolProp wrappers and SysML Parametric Diagrams Gallery Tutorial TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class Section Slide kind SysML Parametric Diagram

SysML4Mathematica: Example 10: Condition and dehumidify air by chilling and condensing some moisture: Process table Gallery Tutorial TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class Section Slide kind SysML Activity Diagram SysML Parametric Diagram

SysML4Mathematica: Example 09: Moisture added to air: Amount (mass) Gallery Tutorial TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class Section Slide kind SysML Activity Diagram SysML Parametric Diagram

SysML4Mathematica: Example 08a: Humidification: Drying lumber with air: required volumetric air flow rate Gallery Tutorial TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class Section Slide kind SysML Activity Diagram SysML Parametric Diagram

SysML4Mathematica: Example 07: Sensible cooling: 'qDotSen' (-ve): energy transfer rate FROM humid air Gallery Tutorial TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class Section Slide kind SysML Activity Diagram SysML Parametric Diagram

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'

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!

SysML4Mathematica: Example 06: Sensible heating: 'qSen' per mass (+ve): energy transfer TO humid air Gallery Tutorial TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class Section Slide kind SysML Activity Diagram SysML Parametric Diagram

SysML4Mathematica: Example 05: Sensible heating: 'qSen' (+ve): energy transfer TO humid air Gallery Tutorial TRAIL: Air Conditioning Psychrometrics (vs CED Engineering course): Example results (only) in Mathematica and SysML using the Webel Psy package and MPsy class Section Slide kind SysML Activity Diagram SysML Parametric Diagram

Webel: Psy/MPsy: Psychrometrics for Mathematica: For Imperial Units (IP), International British Thermal Units (Btu) are assumed

Webel: Psy/MPsy: Psychrometrics for Mathematica: Convention: 'Q' indicates the energy GAINED BY the system as heat energy transfer; 'W' indicates the work DONE BY the system on its external surroundings.