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The Research on the Field Measurement Standard of the Noise of Equipments and Pipes Used in Building Water Supply and Drainage

Abstract


1. Origin of the study
Due to high urbanization and rapid development of dwelling buildings in Taiwan,
noise pollution becomes a general problem. This kind of noise is called indoor noise, it is
composed of the noise from outdoor, neighborhood and equipments in buildings. Since
the quantity of resident and equipments in buildings, therefore the noise from equipment
and pipe used in water supply and drainage becomes the primary noise source in the
indoor environment.
The noise of the equipment and pipe used in water supply and drainage is occurred
by aging or error design system. If the consideration of noise and vibration isolation of the
equipment and pipe does not be made, the indoor noise will be transmitted through air and
structure and then it will affect the quality of the indoor sound environment. The
investigation of the noise from equipment and pipe and the proposal of the improvement
are recommended to raise the life quality in Taiwan.
2. Methods and procedure of the study
This study focused on the improvement in noise control from equipments and pipes
used in water supply and drainage in dwellings. Measurements of noise from particular
equipment used in water supply and drainageinstallations will be made in various
dwellings. According to the analysis resolution of questionnaire on the indoor noise
condition, and the result of measurements to find out the problem as well as the influence
of flow rate and transmission path of the water on the noise distribution. This study will
precede diagnosis and estimation of the noise measurement of equipment’s and pipes used
in water supply and drainage in various dwellings and analyze the related data to obtain
the improvement. Proposal of the improvement that is based on this study can be applied
to architecture design to create the better living environment.
3. Important findings
(1) This study referred the standard was the sound pressure leve of field measurement on
buildind sevice equipment by International Organization for Standardization and
applied the standard in the field measurement. We supplied the result to the
organization of the government to found the standard of CNS.
(2) The results showed that the pipes outside the structure of congregate house was
lower than the pipes inside the structure of row house on satisfaction and that related
with the age of the houses.according the reaserch the noise value of the pipes outside
the structure was higher than inside and it transmitted to above and under storeys by
the connect ion of the pipes.we found the pipes of the water closet that obtained
highest noise values in this study and provided the insulation method of the the
water.
(3) We accorded the result to know the properties and queations of the noise of the
equipment and pipe used of water supply and drainage. We discussed about the effect
of noise of difference water pressure and flow rate on water supply and improved the
insulation of pipe. We supplied the result to found the design guildline of the
equipment and pipe of water supply and drainage in dwelling.
4. Suggestions
This study suggests founding the standard of CNS on acoustic-field measurement of
sound pressur level of building service equipments:For immediate strategies
Sponsor: Architecture and Building Research Institute, Ministry of the Interior
Organizer: Bureau of Standards, Metrology & Inspection
Explanation: Chinese National Standards ofacoustics included the measurement of
material absorption, insulation of building and building element and sound power
level but not provided the field measurement of equipment and pipe of water supply
and drainage. However, we suggest studying the application feasibility of Chinese
National Standards from ISO 16032 that accord the trend of internationalization.
This study suggests reviewing the regulation and law aboutthe equipment and pipe
of water supply and drainage:For long-term
Sponsor: Architecture and Building Research Institute, Ministry of the Interior
Organizer: Without
Explanation: this study suggests continuing the investigation of the equipment and
pipe of water supply and drainage and reviewing the regulation and law of difference
countries.