Welcome to Emissions Control Guide
Emissions Trading Article
. For a permanent link to this article, or to bookmark it for further reading, click here.
What Is An Evaporative Emissions Control System
from:The evaporative emissions control system for an automobile is attached to the fuel tank. Usually hidden inside one of the rear wheel wells or in a cavity of the body design near the fuel tank the evaporative emissions control system plays an important role in emissions control.
Over time, as fuel sits in the fuel tank of your car the process of evaporation loses combustible gas vapors from the liquid fuel. Without a proper system to trap and store these gas vapors, they are emitted into the atmosphere where they are considered a dangerous pollutant. The evaporative emissions control system is the system that traps and stores these combustible gas vapors to be reintroduced through the intake system later.
The evaporative emissions control system consists of six basic parts. The six basic parts that I am referring to are intake system, fuel tank, vapor canister, vapor restriction, purge control valve and the pressure/vacuum relief filler cap.
Here is a simple overview of the evaporative emissions control system of your car: As the liquid fuel in the fuel tank evaporates, it is restricted to the fuel tank until the fuel tank has reached a predetermined internal pressure. When the predetermined internal pressure is reached or exceeded the vapor restriction will then allow the combustible gas vapor to pass through a line attached from the fuel tank to the vapor canister. There are three types of purge control systems, throttle body position, vacuum valve modulated flow or ECM (Electronic Control Module) activated solenoid valve. Depending on which one of these three types of purge control systems your vehicle is equipped with, when the engine has reached or exceeded idle speed the vapor canisters purge control valve will open up from applied vacuum pressure. This will allow all or some of the combustible vapors to be released from the vapor canister into the intake system. When either your engine has used up the fuel in the fuel tank or it has evaporated away, you will need to open the pressure/vacuum relief filler cap and replenish the fuel in the fuel tank at a nearby gas station.
As the fuel is burned, there are four other standard emissions control systems on U.S. built cars. The other four standard emissions control systems are the catalytic converter, the PCV valve, the EGR valve and the air injection system.
If you are not sure if your evaporative emissions control system of your car is functioning properly or within manufacturer recommended specifications you must have the evaporative emissions control system diagnosed as soon as possible.
Emissions Trading Specific links
Emissions Trading News
Airlines, Airbus Renew Criticism Of EU CO2 Scheme - Wall Street Journal
 Moneycontrol.com | Airlines, Airbus Renew Criticism Of EU CO2 Scheme Wall Street Journal By Alessandro Torello, David Pearson, and Bart Koster BRUSSELS (Dow Jones)--Major European airlines Thursday renewed their criticism of the European Union's inclusion of the aviation industry in its carbon-dioxide emissions trading scheme, views echoed ... India warns EU over airline carbon tax EU's Plans to Curb CO2 Supply Is Legitimate, Lawyer Says Airlines Say Carbon Law Risking EU Growth |
China Projects Skirt Around Price Floor, Avoid CO2 Supply Cuts - BusinessWeek
China Projects Skirt Around Price Floor, Avoid CO2 Supply Cuts BusinessWeek ... projects are skirting around the nation's unofficial floor price for emission credits, reducing the chance the country will show supply restraint or limit exports, according to the former head of an emissions trading lobby group. |
EU eyes compromise with China on airline emissions charges - USA TODAY (blog)
 China.org.cn | EU eyes compromise with China on airline emissions charges USA TODAY (blog) He said Europe might alter its Emissions Trading System if an agreement is reached. "We would very much like to see a stronger role played by China in those talks," Baldwin told reporters at a European-Chinese aviation conference. EU appeals to China to join global emissions talks China continues opposition to EU emissions scheme EU Willing to Adjust Trading Scheme |
German bourse scraps EU carbon emissions trading - Reuters
 Energy and Environmental Management (EAEM) Magazine | German bourse scraps EU carbon emissions trading Reuters FRANKFURT (Reuters) - Bavaria's stock exchange will abandon its carbon emissions certificate trading operations in the EU-traded CO2 market on June 30 after volumes in Europe "plunged to practically zero" in recent months, it said on Tuesday. Emissions trading: Questions & Answers on temporary free allocation of ... EU allows aid to limit CO2 cost for big power users State aid: Commission adopts rules on national support for industry ... |
EU ETS emissions down in 2011, permit glut grows - Reuters
 Environment News Service | EU ETS emissions down in 2011, permit glut grows Reuters However, some carbon analysts said the decline in emissions was due to lower power generation due to weak industrial output towards the latter end of the year and a slowing economy. The EU's emissions trading scheme (EU ETS) limits the carbon dioxide ... 10 Airlines Snub Europe's Emissions Rule China, India Airlines Fail to Comply With Europe's Carbon Rules Emissions Trading Scheme Successful, according to EU |