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PsychroAssay performs high-precision calculations of psychrometric processes between two determined single-state moist airstreams points. It implements the latest mathematical models for the simulation of the physics of water vapor, dry air and moist air as real gases. Given two different thermodynamic property values of moist air, a flow rate and an absolute pressure value as input parameters, the application calculates 14 psychrometric quantities for each of the two moist airstreams state points. Once these state points are determined, it allows to conduct a psychrometric analysis for seven different psychrometric processes between them. The results obtained are suitable for scientific or industrial use, HVAC, meteorology and related fields.

-Performs all the calculations implementing the latest mathematical models used to generate the tables for moist air properties and thermodynamic properties of water in the 2009 ASHRAE Handbook of Fundamentals.

-For the calculation of each State Point, it allows for 17 different combinations of thermodynamic properties to be entered as input parameters:

Dry-bulb Temperature / Wet-bulb Temperature

Dry-bulb Temperature / Dew Point Temperature

Dry-bulb Temperature / Relative Humidity

Dry-bulb Temperature / Humidity Ratio

Dry-bulb Temperature / Specific Enthalpy

Dry-bulb Temperature / Specific Volume

Wet-bulb Temperature / Dew Point Temperature

Wet-bulb Temperature / Relative Humidity

Wet-bulb Temperature / Humidity Ratio

Dew Point Temperature / Relative Humidity

Dew Point Temperature / Specific Enthalpy

Dew Point Temperature / Specific Volume

Relative Humidity / Humidity Ratio

Relative Humidity / Specific Enthalpy

Relative Humidity / Specific Volume

Humidity Ratio / Specific Enthalpy

Humidity Ratio / Specific Volume

-Output psychrometric properties for each State Point:

Dry-Bulb Temperature

Wet-Bulb Temperature

Dew Point Temperature

Moist Air Pressure

Water Vapor Pressure

Saturation Water Vapor Pressure

Humidity Ratio

Saturation Humidity Ratio

Relative Humidity

Absolute Humidity

Parts per million by weight

Parts per million by volume

Enhancement Factor

Specific Volume of Moist Air

Density of Moist Air

Specific Enthalpy of Moist Air

Specific Isobaric Heat Capacity of Moist Air

-The following psychrometric processes are calculated between State Point 1 and State Point 2:

Sensible Heating

Sensible Cooling

Heating and Humidification

Cooling and Dehumidification

Evaporative Cooling

Heating and Dehumidification

Airstream Mixing

-Output results for the psychrometric processes (not all results are available for each of the processes):

Total Heating

Total Energy

Sensible Energy

Latent Energy

Moisture Difference

Sensible Heat Ratio

Enthalpy/Humidity Ratio

Saturation Humidity Ratio

Mass Humidification Rate

Volume Humidification Rate

Dehumidification

Cooling Effectivness

Mass Evaporation Rate

Volume Evaporation Rate

Sensible Energy per Dehumidification

-Supports input parameters and calculation results in both SI (metric) and I-P (English) system of units.

-Range of variables in the SI (metric) system of units:

Temperatures : -143.15 ≤ T ≤ 350 [°C]

Relative Humidity: 0 ≤ RH ≤ 100 [%]

Humidity Ratio: 0 ≤ W ≤ 10 [kg/kg]

Pressure: 22000 ≤ P ≤ 180000 [Pa]

Altitude (approximate): -5120 ≤ Altitude ≤ 11180 [m]

-Range of variables in the I-P (English) system of units:

Temperatures : -225.67 ≤ T ≤ 662.0 [°F]

Relative Humidity: 0 ≤ RH ≤ 100 [%]

Humidity Ratio: 0 ≤ W ≤ 10 [lb/lb]

Pressure: 3.19083 ≤ P ≤ 26.10679 [psi]

Altitude (approximate): -16800 ≤ Altitude ≤ 36670 [ft]

-For each combination of input thermodynamic properties, it calculates and provides the user with information about the appropriate input values in the valid range of computations.

-Results can be sent by email in an HTML file along with a comma-separated value (CSV) file.