Prensentation Noise Prevention
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Transcript of Prensentation Noise Prevention
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NOISE POLLUTION & ITS
CONTROL IN CHEMICALINDUSTRY
Presented By-
HIMANSHU SINGHCHMICAL ENGINEERING
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Sound becomes noise only it becomesunwanted and when it becomes more than thatit is referred to as "noise pollution.
Industrial Noise refers to noise that is createdin the factories which is jarring and unbearable.
It has been scientifically proved that noise morethan 85 decibels can cause hearing impairment and
does not meet the standards set for healthy workingenvironment.
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CODE AREA DAY TIME
(db)
NIGHT
TIME (db)
A Industrial 75 70B Commercial 65 55
C Residential 55 45
D Silence Zone 50 40
1.Day time is reckoned in between 6 a.m. and 9 p.m.
2.Night time is reckoned in between 9 p.m. and 6 a.m.
3.Silence zone is referred as areas upto 100 meters around such
premises as hospitals,educational institutions and courts.
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Responsible for high noise
emissions indoors as well
as outdoor of plants.
In industrialized countries
it has been estimated that
15-20 % or more of the
working population isaffected by sound pressure
levels of 75-85 dBA.
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EFFECTS OF INDUSTRIAL NOISE
POLLUTION
Increase in blood pressure
Increased stress
Fatigue
Headaches
Sleep disturbance
Annoyance
Speech Problems
Dysgraphia, meaning writing learning
impairment Aggression
Anxiety
Withdrawal
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Sound Enclosures
Sound Barrier Wall
Duct Silencers
Baffles
Duct Lagging
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Also known as noisecontrol enclosures,acoustic enclosures, soundbooths, steel enclosures, ormachine and equipmentenclosures these selfsupporting noise barriersenclose noisy equipmentwithout limiting access orimpeding machinefunction.
Utilize modular steelpanels
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Typically used outdoorsto controlIndustrial/Mechanicalnoise
Engineered sound barrierwall panels arespecificallydesigned and constructedwith environmentally
durable compositeconstruction that absorbssound energy and blocksoffensive noise.
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Openings into or out of
noisy environments are
primary systems for the
application of Industrial
duct silencer.
Allows the air to flow
freely from the necessary
generators without the
addition of any unwantedsound.
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Low cost.
These ceiling or overheadbaffles absorb reflected noise(sometimes calledreverberated sound)
bouncing off hard flat walls,floors, or ceilings.
Are an absorptive boardor sound barricade thatcan be placed around orbetween acoustic sourcesto provide sound isolationor deadening and reduceacoustic leakage.
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A flexible sound reduction
wrap for duct work and
piping.
This loaded vinyl sound
barrier product helps
contain break-out noise
from noisy ducts and
pipes.
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Industries are required to know the effect their planthas on the environment, of which noise is one.
There is a moral issue too it is just plain wrong tomake employees listen to noise while they work. Itupsets them and they work like automata robotlike,uncaring. Not to be forgotten is the spectre of the daythat an employee takes the employer to court for nottrying engineeringmeansto reduce noise.
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