Ashrae duct fitting database

Responsibilities of engineers and contractors.Chapter 2 of this design guide includes a discussion on uncertainty and error considerations that readers should familiarize themselves with to appreciate the pressure drop calculation process.Chapter 8 of this book offers a comprehensive overview of duct system acoustics; it is recommended that for additional guidance on acoustics readers see Noise and Vibration Control (Schaffer 2005) as well as Chapter 49, "Noise and Vibration Control," of ASHRAE Handbook-HVAC Applications (2019a). Schaeffer addresses general noise-control design guidelines during the various design phases and includes information on the architectural and structural aspects of HVAC system design. Sample specifications for acoustical materials and the acoustical performance of HVAC equipment are also provided. Schaffer also gives suggestions for troubleshooting HVAC noise and vibration complaints.Each chapter of this design guide includes a nomenclature section at the end that defines the variables used in the chapter's equations, and example problems and solutions are included throughout the book to help readers understand the concepts of duct design with practical examples. Note that throughout this book all values and nomenclature are provided in Inch-Pound (I-P) units only.This design guide is also accompanied by free spreadsheets in Microsoft® Excel® format. These spreadsheets can be used for designing commercial, industrial, and local exhaust duct systems by the equal friction, static regain, and constant velocity methods. The spreadsheets are best used in conjunction with the web-based ASHRAE Duct Fitting Database (DFDB), available via subscription. This online database includes duct friction losses and fitting loss coefficients for more than 200 round, rectangular, and flat oval duct fittings and is useful to design engineers in the calculation of friction factors and loss coefficients for a wide variety of ducts and fittings. Document History Duct Systems Design Guide This design guide covers commercial and industrial duct systems. Residential duct system

Duct Systems Design Guide Organization: ASHRAE Publication Date: 1 January 2021 Status: active Page Count: 186 scope: This design guide covers commercial and industrial duct systems. Residential duct system design is covered by Air Conditioning Contractors of America's (ACCA) Manual D (2016).This guide does not cover thermal gravity effects (stack effect) or other similar applications where the duct system is vertical and density changes will impact the overall design. For stack effect examples and calculations, consult the System Analysis section of Chapter 21, "Duct Design," of ASHRAE Handbook-Fundamentals (2017c).To determine system air quantities for commercial systems, consult Chapter 18, "Nonresidential Cooling and Heating Load Calculations," of ASHRAE Handbook-Fundamentals (2017a). To determine system air quantities for exhaust systems, use this design guide in conjunction with the American Conference of Governmental Industrial Hygienists (ACGIH®) Industrial Ventilation: A Manual of Recommended Practice for Design, 30th Edition (2019). Chapter 13 of this ACGIH manual includes the designs and air quantity requirements for numerous industrial applications.To design room air distribution systems, consult the relevant ASHRAE Handbooks. For example, Chapter 20, "Space Air Diffusion," of ASHRAE Handbook-Fundamentals (2017b) presents the fundamental characteristics of space air diffusion, and Chapter 58, "Indoor Airflow Modeling," of ASHRAE Handbook-HVAC Applications (2019b) addresses air terminal units and their effects on occupant comfort along with tools for designing air distribution systems.This design guide does not need to be read cover to cover. Readers with a fundamental understanding of duct design may only need to reference Chapters 3, 4, and 5 covering the equal friction, static regain, and constant velocity design methods. It is strongly suggested that readers also review the HVAC System Air Leakage section of Chapter 21, "Duct Design," of ASHRAE Handbook- Fundamentals (2017c), as it provides insight on system sealing requirements, scope of testing, acceptance criteria, recommended specifications, and the

DIAB6.3.44.35 downloadCommercial Navigation: Home \ Business \ Math & Scientific Tools \ Psychrometric Chart + Duct Calculator Software Description: 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. Full functional trial, free upgrade. ... type: Shareware ($65.00) categories: hvac, psychrometric, chart, duct, moist, air, process, recycle, refrigeration, resistance, adiabatic, heat, exchange Download Psychrometric Chart + Duct Calculator Add to Download Basket Report virus or spyware Software Info Best Vista Download periodically updates pricing and software information of Psychrometric Chart + Duct Calculator full version from the publisher, but some information may be out-of-date. You should confirm all information. Software piracy is theft, using crack, warez passwords, patches, serial numbers, registration codes, key generator, keymaker or keygen for Psychrometric Chart + Duct Calculator license key is illegal and prevent future development of Psychrometric Chart + Duct Calculator. Download links are directly from our mirrors or publisher's website, Psychrometric Chart + Duct Calculator torrent files or shared files from rapidshare, yousendit or megaupload are not allowed! Released: July 28, 2013 Filesize: 6.25 MB Language: English, Chinese, ChineseSimplified Platform: Win2000, Windows 7 x32, Windows 7 x64, Windows Vista, Windows XP Requirements: 200MHz CPU, 64M RAM, 10M free disk space Install Install and Uninstall Add Your Review or Windows Vista Compatibility Report Psychrometric Chart + Duct Calculator - Releases History Software: Psychrometric Chart + Duct Calculator 4.4 Date Released: Jul 28, 2013 Status: Minor Update Release Notes: Fixed decimal separator problem in multi world regions. Software: Psychrometric Chart + Duct Calculator 4.3 Date Released: Jun 19, 2012 Status: Minor Update Release Notes: Corrected some symbol display in English language Software: Psychrometric Chart + Duct Calculator 4.2 Date Released: Dec 19, 2011 Status: Minor Update Release Notes: Updated for high precision. New coordinate system; Add ASHRAE equation and real gas effect calculation; Water property updated to IAPWS-IF97 equation; Grid snap support. Most popular pick in Math & Scientific Tools downloads for Vista Psychrometric Chart + Duct Calculator 4.4 download by FlyCarpet Inc ... operating; 7. Many process point managements, include point pick up, data input grid, point definition select, point add, insert, reduce, delete, move up and down, open and save point list; ... type: Shareware ($65.00) categories: hvac, psychrometric, chart, duct, moist, air, process, recycle, refrigeration, resistance, adiabatic, heat, exchange View Details Download

Related Resources: calculators Convert Rectangular Ducts to Round Sizes to Round Sizes Formula and Calculator Fluids Engineering Table of ContentsHydraulic and Pneumatic EngineeringHVAC Engineering Convert Rectangular or Square Ducts to Round Sizes, Formula and Calculator Huebscher (1948) developed the relationship between rectangular and round ducts that is used to determine size equivalency based on equal flow, resistance, and length. This relationship is defined in Equation (1),Preview: Convert Rectangular or Square Duct to Round Sizes CalculatorEq. 1 De = 1.30 ( a b )0.625 / ( a + b )0.250Where: De = circular duct diameter for equal length, fluid resistance, and airflow, in. a = length one side of duct, in. b = length adjacent side of duct, in. Related: Convert Flat Oval Ducts to Round Sizes Formula and Calculator Heat Gain or Loss HVAC Duct ASHRAE Formula and Calculator Duct Design Air Flow Velocities Residential Duct Systems Design Ventilation Duct Stack Pressure Review, Formulas and Calculator HVAC Air Duct Flow Resistance Chart Round Duct Heat Transfer Coefficient Wall Temperature Heat Transfer Equation and CalculatorReference: ASME Code for Pressure Piping, B31.5, Refrigeration Piping and Heat Transfer Components