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CISDOC database

Document ID (ISN)52760
CIS number 89-1921
ISSN - Serial title 0882-8032 - Applied Industrial Hygiene
Year 1989
Convention or series no.
Author(s) Trayer D.M., Thornton C.C., Lehman C.B.
Title Development and testing of a new thermal-acoustic industrial insulation
Bibliographic information Feb. 1989, Vol.4, No.2, p.45-49. Illus. 5 ref.
Abstract Following laboratory tests of several candidate materials, one was selected for full-scale tests on high-speed boiler-feed water pumps in an electric power plant. The field tests showed a noise reduction of 10 to 30 decibels in the frequency range of 250 to 4000Hz. It is thought that at least 10 decibels of mid-frequency noise attenuation can be achieved on noisy process equipment such as high-speed pumps, turbines, and control valves. Heat stress conditions in the area of pumps were also alleviated as the result of a temperature reduction of 6░K (10░F) dry-bulb. An investigation is being conducted to determine if this represents a significant thermal energy gain in the process feedwater - a factor which could offset the cost of the insulation. The insulation is asbestos-free, and the removal and replacement of individual components are achieved without generation of excessive airborne dust.
Descriptors (primary) sound absorbing materials; substitution; thermal power stations; insulating materials
Descriptors (secondary) asbestos; evaluation of equipment
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Power generation and distribution
Noise