@Air is a member of
Techware¡¯s family of software packages bringing accurate thermodynamic
properties of fluids to many popular Windows programs. @Air provides
thermodynamic properties (sometimes called psychrometric properties) and
transport properties of moist air.
The air property functions can be used
directly from within applications including Microsoft Excel, 1-2-3 and
MathCad. Add-ins attach the functions so that you can use them as if
they were built in to the applications.
What's New in Version 4.0
Added 64-bit version of Air property
DLL.
Added 64-bit version of DeskTop Air.
Converted all help files to compiled
HTML format.
Removed @Air Help link from all versions
of Excel and 1-2-3 menus.
Key Features
- Functions can be used as if they were built in
to most popular spreadsheet programs.
- Accurate properties consistent with ASHRAE
tables.
- Equations based on virial equation of state
using second and third order mixing coefficients. No perfect gas
assumptions.
- Accuracy fully documented.
- Supports many combinations of input data.
- Calculates specific volume, enthalpy, entropy,
specific heat, viscosity or thermal conductivity.
- Use English, English Gage, SI Common, SI
Formal, SI kPa and Metric unit sets.
- Functions can be called from many Windows
programming languages.
- Allows pressures up to 50 bar (725 psia)
and temperatures from 180 ¡ÆK (-135.7 ¡ÆF) to 2000 ¡ÆK (3140.3 ¡ÆF).
- Uses or calculates humidity ratio, relative
humidity, degree of saturation, wet bulb or dew point temperatures.
- Express moisture as humidity ratio, mole
fraction or mass fraction.
- Express results on wet or dry basis.
Applications Supported
The @Air package includes various
add-ins which link the functions to many popular 32-bit and 64-bit Windows
applications. 32-bit add-ins are included for Microsoft Excel Versions
for Office 95, Office 97, Office 2000, Office XP, Office 2003, Office 2007 and
Office 2010 (32-bit version); Lotus 1-2-3 97 and 1-2-3 Millennium and
MathSoft Mathcad Plus Versions 6, 7 and 8. A 64-bit add-in is included
for Office 2010, 2013, 2016 and 365 (64-bit version.)
No programming is required to use the
@Air functions with any of these applications. Just follow a few simple steps
to load the add-in, and from then on, the functions will be available every
time you start the application. You use the functions just like any of the
built-in functions. The functions can be used in any spreadsheet formula and
any argument to the functions can be a number, a formula or a cell reference.
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