download duct [4 articles found] (supplemental result)

Psychrometric Chart and Duct Calculator.
A convenient, precise and powerful tool for
HVAC&R engineers. This
psychrometric chart is perfectly consistent with all ASHRAE charts of No.1~7(SI Units) and No.1~5(IP Units). Features include: High precision calculation; Metric(SI) and English(IP) units support; Convenient chart operating; Powerful
process calculating; Include thermal and
adiabatic effect calculation for air/liquid duct.
Economics - Other Marketing Progs, On August 29, 2008 updated, downloaded 30 times, file size is 5637Kb.

HVAC building design and drafting.
Design Master HVAC is an integrated HVAC building design and drafting program that runs on top of AutoCAD. Drafting features include single-line and double-line 2D ductwork with automatic fittings and 3D ductwork. Duct
sizing calculations include constant pressure drop, constant velocity, and
static regain. Pressure drop in the duct system can also be calculated. Building load calculations are done using the ASHRAE CLTD method.
Graphics & Design - CAD & Vector Graphics, On February 12, 2008 updated, downloaded 52 times, file size is 6380Kb.
Encrypt the protection document..
The data encrypts a processing, can according to need born and different edition to the same document, recover appointed edition according to the demand.The customer can use system to provide of encrypt and lead a function, carry on a backup to the document, the document will include that document all history edition data.The customer`s can pass a right password then can duct into the backup document, avoiding the leakiness of the document data.
Economics - Office Docs & Spreadsheets, On July 1, 2007 updated, downloaded 17 times, file size is 1655Kb.

Low cost AutoCAD DWG professional design CAD.
Auto
CAD LT compatible design software you can afford! DWG DXF native editing. Powerful CAD interface - similar icons, commands and interface. Raster image editing, raster-to-vector software included. PDF, DWF, SVG, O2C & Google Earth KML support,
IntelliCAD AutoLISP, VBA & DIESEL, ACIS 3D Solids modelling, temporary point snap (oSnap), layers, blocks. Hatch and xref editing. 3D shading and rendering options. approx. 11000+ CAD symbols library.
Graphics & Design - CAD & Vector Graphics, On October 28, 2009 updated, downloaded 39 times, file size is 159440Kb.