Noise in Fluid Machinery

Noise is both environmentally unfriendly and a hazard to health. Legislation, with respect to measurements and control, has rightly become increasingly stringent. Engineers, generally, other than those expert in the subject, do not have an adequate understanding of how noise is generated, how it is transmitted, or how can be measured and controlled. As well as identifying standards relevant to measurement of noise from pumps, the papers presented in this volume look at several areas including fundamental concepts of noise transmission, general principles of noise reduction, and effective noise control. The following essential topics are covered: fundamentals of noise; noise generation in pumps; fan and compressor noise; noise transmission from rotating machinery; noise control methods and noise reduction; measurement methods including sound intensity. The papers in this book are aimed at improving understanding. They are written in an easy-to-read format and will be of value to those involved in machinery design, installation design, or operation.