bFully updated second edition of the premier reference book onmuffler and lined duct acoustical performanceb pEngine exhaust noise pollutes the street environment andventilation fan noise enters dwellings along with fresh air. Peoplehave become conscious of their working environment. Governments ofmost countries have responded to popular demand with mandatoryrestrictions on sound emitted by automotive engines, and a thoroughknowledge of acoustics of ducts and mufflers is needed for thedesign of efficient muffler configurations. This fully updatedSecond Edition of iAcoustics of Ducts and Mufflersi deals withpropagation, reflection and dissipationabsorption of sound alongductspipestubes, area discontinuities, perforated elements andabsorptive linings that constitute the present-day mufflers andsilencers designed to control noise of exhaust and intake systemsof automotive engines, diesel-generator sets, compressors and HVACsystems.ppIt includes equations, figures, tables, references, and