Prensentation Noise Prevention

8/12/2019 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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Prensentation Noise Prevention

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