The following is a list of features available in Duct
The Duct Size 6.0 software is a stand-alone program. However,
it also works with AutoCad. The user can import a single-line
drawing from AutoCad and export it back as a double-line
or 3-D drawing.The purpose of this software is to provide
the user with a total duct system analysis so that they
can properly size the duct work and the fan that serves
the duct system. This program is geared specifically toward
the HVAC engineer, architect, design/build mechanical contractor,
and building maintenance supervisor.
New Features The Duct Size 6.0 software has been entirely
re-written to take advantage of the latest programming and
back-end database technologies. In addition, the entire
ASHRAE fitting database of over 200 fittings has been incorporated
into the software, including pressure loss data and pictures.
A new and improved user interface (UI) has been designed
making the input process much faster and more intuitive
than previously. This improved UI includes a tree-like navigation
area that allows the user to view all duct systems, fans,
and duct nodes.
Within the navigation area, basic information such as airflow,
dimensions can be displayed next to each duct node allowing
the user to quickly view important information about the
entire duct system.
The user can copy duct systems within the same project and
also copy sections ofduct nodes within the same duct system.
The user can easily replicate entire projects so as to reuse
An unlimited number of duct system templates can now be
created so that the user can create new duct systems using
common data from the templates.
Includes new "Suggest a fitting" technology that
allows Duct Size to suggest a ductfitting based upon the
current configuration of duct runs
Can model duct systems based upon the constant velocity
method of calculations
Input checks have been incorporated so the user can confirm
that inputs are validprior to calculating.
Includes many more reports including addtional sound-power
and attenuation reports.
All input and output data can be exported to Microsoft Word
and Excel templates.
Reports can be exported to XML format so that they can be
shared with others acrossnetworks and operating systems
other than Windows.
Can import from AutoCad 2004/2005 DXF files
Can export to AutoCad 2004/2005 DXF files
Can import and export information from AutoCad Building
An additional 300 cities have been added to the weather
database making the total 800.
. . . and more.
Standard Inputs Input up to 1000 duct nodes per duct system
Input multiple duct systems per duct project
Specify duct size calculations according to constant friction,
constant velocity, or static regain methods.
Model existing duct size systems to determine total static
pressure loss and fan size.
Specify fan upstream and downstream pressure losses
Specify global duct system values such as material type,
duct shape, and liner and insulation widths
Specify minimum and maximum allowable values such as duct
dimensions, velocities, and duct lengths
Specify fan inlet and outlet characteristics such as sizes
and air velocities
Specify sound-related fan inputs such as fan efficiency,
RPM, HP, and octave band frequencies
Specify individual node characteristics such as length,
fitting or equipment type, tap type, roughness, material,
shape, insulation width,liner width, seal class, and much
more . . .
Types of Built-In Data Included Data for 200+ ASHRAE fittings
including pressure loss info. and pictures
Data for HVAC duct size equipment such as diffusers, grilles,
VAV boxes, and fan-powered mixing boxes
Fan filter data including pressure losses
Duct material types
Duct gage and density data
U-Value and velocity data to determine heat loss/gain throughout
the duct system
Fan sound power data
800 city weather database including the United States and
the entire world
Outputs Includes duct size and airflow breakdown report
Includes total fan pressure report
Includes duct pressure loss breakdown report
Includes duct critical pressure path report
Includes duct leakage breakdown report
Includes duct heat gain/loss breakdown report
Includes cumulative sound analysis by node report
Includes room sound pressure level analysis report
Includes duct weight and gage breakdown report
Includes duct material list report
Includes duct violations report
Includes capability to export to custom Microsoft Word and
Can export to html and text files
Can export to XML files
Additional Features Support for both English and Metric
Simple mathematical capabilities at every input.
Global data editing of all inputs.
Can import single-line DXF drawings from AutoCad 2000 to
Can export double-line and 3-D DXF drawings to AutoCad 2000
Can import and export data to AutoCad Building systems 2005
Computer/Processor Windows-based personal computer with
a Intel Pentium processor or higher.
Memory For Windows XP, 96 MB of memory is required. For
Windows 2000/2003, 128 MB of memory is required. More memory
may be required to run additional applications simultaneously.
Hard Disk 35 MB of available hard-disk space required.
Drive CD-ROM Drive.
Display VGA or higher-resolution video adapter (1024 x 768
minimum is preferred).
Operating System Windows 98SE, XP to 2003
Other Software (Optional) Microsoft Word, Microsoft Excel,
AutoCad 2005, AutoCad LT 2005, AutoCad Building Systems