var fDesc=new Array(); fDesc[0] = "The psychrometrics Excel Add-In library calculates 35 thermodynamic properties of humid (moist) air in SI and English units. It allows 21 different combinations of input variables to be used for calculations.

Input variables that can be used are:

-pressure,
-dry bulb temperature,
-wet bulb temperature,
-dew point tempertature,
-relative humidity,
-humidity ratio,
-enthalpy,
-entropy,
-and volume.

Main features:

-Professional quality, industrial strength software;
-Based on the most accurate formulation (Hyland and Wexler);
-Accurate and thoroughly tested;
-Create User Defined Functions (UDF) which use HumidAir functions;
-Call HumidAir functions from VBA (sample is included in the release version);
-Developed in C for maximum speed;
-Easy to install and easy to use;
-For installation and use of the library no administrator rights required;
-After installation no computer restart required;
-One year free technical support."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }