Abstract
A noise control program for new plant design has been implemented by an engineering‐construction firm. The results of the program indicates that when designers and specifiers of equipment are aware of noise objectives, noise control measures are implemented more economically. In the design of a 100‐million‐dollar industrial complex, corrective measures were taken during the feasibility stage. During the procurement phase, competitive equipment was evaluated based on its effect on the acoustical environment. In several instances, the specifier of the equipment worked closely with the equipment manufacturer. This relationship, in the selection of fans, led to the use of slower speed fans with different blade types. The emphasis placed on motor noise paved the way for one manufacturer to offer a “quiet line motor.” By changing the motor insulation and redesigning the motor cooling fan, a significant noise reduction was achieved. A comprehensive computer program system was developed to help the design engineer evaluate several alternatives. The results of the program and its effect on plant costs will be presented.
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