My Exam Notes
  • Home
  • CURRENT AFFAIRS
  • GENERAL AWARENESS
    • Child Category 1
  • BIHAR PSC
  • Home
  • CURRENT AFFAIRS
  • GENERAL AWARENESS
  • BIHAR GK
  • RAJASTHAN GK
  • MECHANICAL NOTES

Saturday, November 8, 2014

POLLUTION FROM INTERNAL COMBUSTION ENGINE

 My Exam Notes     11:37 PM     I C ENGINE     No comments   

                       POLLUTION FROM I.C ENGINE


With context to environment or atmosphere we are talking about pollution caused from exhaust of internal combustion engine.These gases have adverse effect on our environment and they helps to degrade it in handsome amount.The majority which contributes to the degradation of environment is the unburned hydrocarbon emitted from exhaust of automobile.

Here is list of few pollutant which effect our society are:-
  • Unburned hydrocarbon.
  • Oxides of nitrogen(NOx).
  • Carbon monoxide(CO).
  • Carbon dioxide(CO2)-green house gas.
  • Particulate matter.
There are various factors which effect the emission of these harmful gases.It depends on:-
  • Operational speed of engine.
  • Availability of oxygen in cylinder.
  • Effect of spark advance.
  • Mixture of air +fuel.
At low speed and idling condition,it is observed that emission of hydrocarbons and carbon monoxide is more.

When the percentage of air in the engine cylinder is more under high temperature,results in nitrogen combining with oxygen and forming oxides of nitrogen(NOx). High concentration of oxides of nitrogen is found in exhaust if spark advance is increased.

You would be thinking how oxide of nitrogen increases with increase in spark advance?

The answer is very simple,Spark is induced through igniter or spark plug to burn the air and fuel mixture in the cylinder.The spark should induced at correct time to burn all the fuel and air mixture.If there is an advance(before time) in introduction of spark to the fuel+air mixture then maximum portion of the fuel+air mixture will remain unburned and will directly be send to exhaust result in inefficient combustion.There is plenty of oxygen which combines with nitrogen and forms oxides of nitrogen(NOx).

METHOD TO REDUCE POLLUTION:-
  • By leaned mixture of air+fuel ratio.
  • Reducing ignition spark timing.
  • Providing low compression ratio.

 


  • Share This:  
  •  Facebook
  •  Twitter
  •  Google+
  •  Stumble
  •  Digg
Email ThisBlogThis!Share to TwitterShare to Facebook
Newer Post Older Post Home

0 comments:

Post a Comment

MY TRAVEL VLOG-Being Tourist

Popular Posts

  • Environment Current Affairs 2019 PDF download | Important Questions |
    Watch video on EXAM FOCUS YOUTUBE CHANNEL. Which city of china in only one with all electric taxis? Taiyuan Shenzhen Jingia...
  • TURBOMACHINES
                    TURBOMACHINE DEFINATIONAND  EXPLANATION A turbo-machine is a device in which energy transfer takes place between ro...
  • #MOST IMPORTANT AUGUST CURRENT AFFAIRS 2018 #PDF link #NOTES #अगस्त करें...
    PDF IS BELOW NOTES - Go Down Notes of August Current Affairs- Navlekha a new platform launched by Google .Google has announced pr...
  • MAY (1-15th) CURRENT AFFAIRS 2019 | MCQ's | EXPLAINED | FREE PDF |
    PDF WILL BE UPLOADED ON 24/05/2019 The newly elected prime minister of Israel is? Benjamin Netanyahu What is the theme of Internati...
  • #SPACE CURRENT AFFAIRS last 6 months #स्पेस/अंतरिक्ष विज्ञान करेंट अफेयर...
    Indian national committee for space research was established in the year 1962 Indian Space Research Organisation was founded in year 19...
  • BANKING CURRENT AFFAIRS | MD, CEO, CHAIRMAN Of BANKS (UPDATED 2019)| MCQ's | static gk
    This POST is on Banking Awareness 2019 with all important National Banks and its MD/CEO/CHAIRMAN with important points to remember for all...
  • ENERGY LOSS IN PIPES, Darcy- weicbach formula, Chezy's formula, minor losses in pipe
    MECHANICAL TIPS AND STUDY MATERIAL When ever there is flow of fluid in pipes there will be resistance which add to energy loss. For our stud...
  • METAL INERT GAS WELDING AND TUNGSTEN INERT GAS WELDING
            TUNGSTEN INERT GAS WELDING (TIG) CHARACTERISTICS IN  BRIEF It is known as GAS TUNGSTEN ARC WELDING (GTAW). Also called Argon arc wel...
  • BERNOULLI'S THEOREM AND ITS APPLICATION-PITOT TUBE AND VENTURIMETER
    BER NOULLI'S THEOREM AND APPLICATION In steady flow of fluid, the Bernoulli principle state that at any point of time the sum of all for...
  • ECONOMICS CURRENT AFFAIRS (इकोनॉमिक्स) 2019 | JANUARY- JULY (PART 1)
    PLAY VIDEO AND ENJOY LEARNING PDF AT BOTTOM Which among the following company tied up up with India to issue PAN card? MasterCard Vi...

Categories

AUTOMOBILE BASICS BHIHAR PSC BIHAR PSC biology quiz CURRENT AFFAIRS economics FASTEST MACHINES FLUID MECHANICS GEARS GENERAL AWARENESS HEAT AND MASS TRANSFER I C ENGINE JET ENGINES JOB OPENING IN USA MACHINING PROCESSES MANUFACTURING PROCESS MATERIAL SCIENCE mechanical engineering MECHANICAL JOB VACANCY IN INDIA MECHANICAL VIBRATION MISSILES POLITY QUIZ POWER PLANT ENGINEERING RAJASTHAN GK sports STRENGTH OF MATERIAL THERMODYNAMICS TOP COLLEGES TOP SPEED TURBINES WELDING

Pages

  • QUIZ

Featured post

SCIENCE & TECHNOLOGY CURRENT AFFAIRS 2018 (JANUARY - JUNE)विज्ञान प्रौद्...

CBSE (Central Board of indirect taxes) launched which app to check person collecting GST? GST verify National science day was celebrate...

ad code

Copyright © My Exam Notes | Powered by Blogger
Design by Hardeep Asrani | Blogger Theme by NewBloggerThemes.com | Distributed By blogger Templates