Developed over the last decade, AcousticCalc helps designers predict sound levels at the room level from a distant sound source. The program uses the ASHRAE Handbook and ASHRAE's 1991 Algorithms for HVAC Acoustics handbook methods with the “Source-Path-Receiver” model. This easy-to-use Windows-based program allows a user to define and save unlimited number of sound sources, save and define unlimited number of sound “paths” (composed of long list of possible duct component types) and model the ceiling effect and three different models for room effect. AcousticCalc allows a user to import and export (share) sound sources, user-defined devices, terminal units, and duct silencers with other users. Easy-to-navigate “tree” modeling allows an unlimited number of sound sources, paths and rooms. AcousticCalc allows the user to create multiple scenarios, so the designer can optimize the design for the acoustical criteria of a given room or space. AcousticCalc also allows the user to “mark” component breakout sound for calculation and inclusion, if the designer deems the component to be located such that breakout sound should be considered. Reports and graphs from AcousticCalc include: • Report: Project Cover Sheet • Report: Project Summary with Results • Report: Source, Path and Room Details • Graph: NC Sound Plotting with NC Value Displayed • Graph: RC Sound Plotting with RC Value Displayed • Graph: NCB Sound Plotting with NCB Value Displayed • Graph: RC Mark II Sound Plotting with RC Mark II Value Displayed. Design Software Designing and specifying the ideal HVAC system can be a time-and cost-intensive process. That's why we developed these user-friendly Windows® - based software programs; Daikin Tools ®, EnergyAnalyzer ® 3, and Acoustic Analyzer ®. Daikin Tools ® Suite for Engineers selection software allows you to take full advantage of the engineered flexibility of Daikin Applied products and quickly size and select equipment. Once you have made all of your selections, with just a couple of clicks, you can generate complete specifications as Word documents in CSI specification format. In addition, the software creates dimensional drawings in DWG or DXF format, as well as detailed equipment schedules. You can export your selections to your Daikin Applied Representative via e-mail for review and budget pricing. Likewise, you can import the selections into your Daikin Tools program once the final selections are e-mailed back to you.| Energy Analyzer ® 3 A powerful energy modeling tool available to your Daikin Representative. Energy Modeling can assist you in making the best possible selection for your money. ® Lets you estimate the sound of HVAC equipment in a space or at the property line using your design conditions. This software can help you determine if your equipment selection will meet specifications. View a demonstration of this software at DaikinApplied.com under the Design Tools link. For the acoustical analysis the program assumes a 'standard' 3m x 3m typical. The calculation program then sizes the ducts and determines the noise level. Description and input data of sound sources, sound paths (duct components), and room information. Daikin software is available from your local. Utility Applications - An Electronic pipe calculator for sizing piping and calculating pressure drops. - Provides state point and system psychrometric analysis for air handling units including cooling and heating coil loads, humidifier loads and mixed air conditions. - An Electronic duct calculator for sizing duct and calculating pressure drops. An acoustic noise calculation of a ventilation system can follow the procedure indicated in the example below: Sound and Noise Sources Estimate all sound power sources. Estimate the Sound Power Level from the Fan - L N Enter the manufacturer's sound power data. Add Safety factors Add safety factors - 3 dB is recommended. Attenuation Estimate the attenuation in the system. Room and terminal effect The - L p - are converted to - L w - at the terminals. The acoustic characteristics of the room as well as the number and location of the terminals must be considered.
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