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Trane TRG-TRC007-EN manual Air Conditioning Clinic Fundamentals of Hvac Acoustics

Models: TRG-TRC007-EN

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Setting a Design Goal Weight What is Sound Power and Sound Pressure

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Air Conditioning

Clinic

Fundamentals of HVAC Acoustics

One of the Fundamental Series

TRG-TRC007-EN

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Trane TRG-TRC007-EN manual Air Conditioning Clinic Fundamentals of Hvac Acoustics

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Contents

Air Conditioning Clinic Fundamentals of Hvac Acoustics Business Reply Mail One of the Fundamental Series Comment Card Fundamentals of Hvac Acoustics Fundamentals of Hvac Acoustics Preface Contents TRG-TRC007-EN Fundamentals of Sound Fundamentals of Sound What is Sound? What is Sound? Sound Wave and Frequency Wavelength Broadband Sound and Tones Broadband Sound Octave Bands Octave Bands Logarithmic sums One-Third Octave Bands Sound Power and Sound Pressure Sound Power and Sound Pressure An Analogy Decibel DB = 10 log 10 ´ log Logarithmic Scale Equation for Sound Pressure Equation for Sound Power 50 dB + 44 dB = 51 dB Logarithmic Addition of Decibels Human Ear Sound Perception Rating MethodsHuman Ear Response Loudness Contours Single-Number Rating Methods Response to TonesSingle-Number Rating Methods Sound Perception and Rating Methods C Weighting Weighting Example Weighting Noise Criteria NC Curves NC-39 Room Criteria RC Curves MPa DB ref Pressure Sound Perception and Rating Methods RC-31 R Phon and Sone Octave-Band Rating Method Octave-Band Rating Method Acoustical Analysis Acoustical Analysis Setting a Design Goal Setting a Design Goal Acoustical Analysis Source-Path-Receiver Analysis Acoustical Analysis Source-Path-Receiver Model Airborne Typical Sound Paths Example of Multiple Sound Paths Examples of a Single Sound Path Identifying Sound Sources and Paths Sound-Path Modeling Modeling Sound Paths Supply Algorithms for Sound-Path Modeling Computerized Analysis Tools Terms Used in Sound-Path Modeling Attenuation and Regeneration Sound Transmission Insertion loss IL Noise reduction NR Transmission loss TL Absorption Reflected Sound Receiver Sound Correction Equipment Sound Rating Equipment Sound Rating Fields of Measurement Free Field Distance Correction in a Free Field = L p1 20 log Lot Near Field Reverberant Field Semireverberant Field Hvac Equipment Sound Rating Rating Hvac Equipment Reverberant-Room Method Free-Field Method Industry Standards Ducted Air-Handling Equipment Air Handler Test Configurations Former Methods of Sound Testing ARI Standard Sound Power by Octave Band Review-Period One Review Noise criteria NC Room criteria RC Review-Period Two Review-Period Three Review-Period Four Review Questions for Period Quiz Octave-band frequency, Hz Answers Glossary Glossary Room effect See receiver room correction Glossary Trane

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