Air Filtration And Sound Control Systems For Gas Turbines - The Start Of The Art

Abstract

This paper discusses some of the latest design concepts and materials currently being utilized in the design and manufacture of noise control equipment for gas turbine engines. Some related areas which are also discussed include inlet air filtration and low frequency noise. Consideration is also given to some of the various environments such as artic, desert, offshore, etc. Several reference tables and charts are included such as NEMA and ISO NR standards, addition of sound pressure levels, and comparison of sound pressure levels to common environmental sounds. There is also other reference information such as a list of fundamental definition frequently encountered. Consideration is given to the fact that most people are not “acousticians” and for this reason theoretical concepts are not discussed. The basic intent of the paper is to familiarize the reader with gas turbine air filtration and sound control systems.