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Automobile Emission monitoring

using Auto exhaust analyzer.

Nishant Sharma (2009PCE104)M.Tech. Environmental Engg.MNIT Jaipur

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Automobiles produce emission:

COCO2NOx

SO2

HCsO3PM

LeadCFCs

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Emissions Generation

Automobile

Generation of

HC, NOx , CO,SO2

GasolineCombustion

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Effects on the Environment and

Human Health

Smog Generation, Green

House Effect and Ozonedepletion

Cancer, lung disease etc.

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Common air pollution sources

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Standard Reference Date Region

India 2000 Euro 1 2000 Nationwide

Bharat Stage II Euro 2

2001NCR*, Mumbai, Kolkata,

Chennai

2003.04 NCR*, 10 Cities

2005.04 Nationwide

Bharat Stage III Euro 32005.04 NCR*, 10 Cities

2010.04 Nationwide

Bharat Stage IV Euro 4 2010.04 NCR*, 10 Cities

* National Capital Region (Delhi) Mumbai, Kolkata, Chennai, Bengaluru, Hyderabad, Ahmedabad, Pune, Surat,Kanpur, Lucknow, Sholapur, and Agra

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Effects of CO

Forms carboxyhemoglobin with hemoglobin(combining capacity 50 times more than oxygen).

Reduces oxygen delivery to bodys tissues andorgans.

At low levels, it affects people with cardiovasculardiseases.

At high levels, it is poisonous to everyone.

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Effects of Hydro Carbons Pulmonary

Discomfort.

Effects the mucousmembrane.

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Auto Exhaust Analyzer It is an instrument which is used to measure the

amount of Carbon Mono Oxide and Hydro Carbons.

Carbon Mono Oxide is measured in terms ofpercentage volume with reference to a span gas whichis filled initially and the instrument is calibratedaccordingly.

Hydro Carbons are measured in PPM.

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Primary Components:

Main Unit

Probe and tube

fittingsFilters Power Cord

Sampling ProbeSampling Tube

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Working principle It based on the principle ofNon-Dispersive Infrared

ray structure(Double beam type).

It makes internal pressure in the left detector higherthan one in the right detector.

By blocking the ray, the pressure in both detectors isequalized.

The changing volume of absorbing infrared ray isdetected.

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Circuit3

1

2

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Principle Components:

1. Infraredsingle light

source

2. Mass-flowsensor

3. InterferenceCompensating

DetectorEliminates

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Specifications: Measuring components: HC, CO. Measurement range:

HC: 0 to 10000ppm

CO: 0 to 10% Measuring method: Infrared raySystem

Certification number: JATA-CO,HC-5

Communication interface: RS232C Indication: LCD with back light Power supply: 90 to 264V AC Mass (Weight): Approx. 5kg

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Calibration

Check function

Spancalibration

ZeroCalibration

Warm Up

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Recommendations

Follow thenorms

Properlymaintain

yourvehicle

Go forroutineemissionstest.

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