- Duct design is essentially a solution of two basic equations, the relationship between duct velocity, air quantity and duct cross-sectional area, Eq. 1, and Bernoulli's energy balance equation, Eq. When the specific weight of atmospheric air γ a is constant, it can be written that: PZ1.
- Elite Software is the world's premier software developer for HVAC, electrical, plumbing, and fire protection design software. Over 30 programs are offered for such applications as HVAC load calculations, building energy analysis, HVAC duct and pipe sizing, plumbing & lighting design, fault current calculations, voltage drops, fuse and breaker coordination, and much more.
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How Many ACCA Load Calculation and Design Manuals Are There?
In 1986, ACCA (Air Conditioning Contractors of America) released their Manual J [ANSI/ACCA 2 Manual J - 2016] load calculation format for residential HVAC applications. It was a success that started a trend for future standard calculation and design manuals. There is a Manual D [ANSI/ACCA 1 Manual D - 2016] for residential duct design. Manual N for commercial load calculations and Manual Q for commercial duct design (low velocity and low pressure design). For air and hydronic balancing and testing there is a Manual B. A Manual Zr [ANSI/ACCA 11 Manual ZR - 2021] for residential zoning systems. A Manual T for air distribution fundamentals. For residential equipment selection use Manual S [ANSI/ACCA 3 Manual S - 2014]. This is different from a Manual RS which covers special design steps and principles to install residential HVAC systems for today's homeowner. Commercial systems selection would be Manual CS. There is a Manual H for heat pump systems. A Manual P for psychrometrics (relative humidity and moisture). There is one for HVAC design for swimming pools and spas: Manual SPS [ANSI/ACCA 10 Manual SPS - 2011 (RA 2017)]. Many manuals are compliant with American National Standards Institute (ANSI) standards and national building codes. ACCA produces other quality books and design materials. They are a great asset to the HVACR industry and their website can be found here.
Design Master HVAC is a complete ductwork drafting and calculation software program that works directly inside AutoCAD and BricsCAD. Define the parameters of your project as you draft, then perform calculations within the software using those parameters. Sacm 1935 a serial number. Make revisions that are accounted for throughout the design. Build your HVAC systems faster and more accurately with Design Master.
Duct and Diffuser Layout
- Draft intelligent ductwork that responds to changes in your design
- Insert fittings automatically while you draft and modify them as needed
- Draw double-line ductwork as easily as single-line
- Lay out your diffusers and connect them to your ductwork
- Generate a diffuser schedule as you design your project
Adrienne Gould-Choquette, founder of Adicot, Inc, in Sarasota, FL, says that before using our software, “I was spending more time drafting than I was engineering. … Now I have more time to devote to the design.”
CFM and Sizing Calculations
- Size your entire system with a single command, using criteria defined by you
- Make duct-by-duct changes to sizing criteria
- Calculate airflow distribution based upon the building definition and diffusers in your project
Compared to Revit MEP, Senior Project Manager Joshua Lukacs of Design West in San Bernardino, CA, says our software “lets you work far more efficiently – it’s about 50% faster in production.”
Pressure Loss Calculations
Duct Design Software Free
- At the press of a button, calculate pressure drop based upon your drafted layout
- Easily make revisions and recalculate – no data entry required
- Automatically determine the critical path in your system
3d Duct Design Software
“No more manually entering third-party load calculations – now it’s a one-step process,” says Michael Holland, mechanical engineer at Sherlock, Smith & Adams in Montgomery, AL.
Heating and Cooling Load Calculations
- Fully define building location, temperature ranges, materials, and more
- Calculations use rooms that can be drawn directly over your architect’s plans
- Assign and configure zones
- Generate print-ready load calculation reports, ventilation schedules, and psychrometrics based upon your building definition and system layout
“I was instantly converted when I saw how it automatically calculates heating and cooling loads,” says Paul Kenney of Proficient Engineering in Atlanta, GA. 1000 ways to make 1000 dollars pdf.
3D Drafting and BIM Compatibility
- Generate a full 3D model based upon your 2D layout
- Export to IFC and DWG for use in Navisworks and Revit
Find out why Will Davis, mechanical engineer at MEP Associates’ office in Norman, OK, uses our software “for all the design work I do, including BIM and 3D modeling.”
Qimage one. “I’ve been head of the mechanical departments for several large firms. I think many such companies are missing the boat by not using Design Master.”