Is CO2 and NOx emissions?
The Chemical Composition of CO2 and NOx. In general, emissions such as CO2 and NOx are described as gases and particulate matter that are emitted into the air and atmosphere by a wide spectrum of sources, such as vehicles, trucks, refineries and heavy equipment.
What are emission norms of CO and HC?
The prescribed values for petrol vehicles consisting of pollutants and Lambda are stated as follows: Prescribed Standard for Petrol Vehicles in Bharat Stage 4 norms: Carbon Monoxide (CO): −0.3 ppm. Hydrocarbon (HC): −200 ppm.
What emission is HC?
Hydrocarbons are basically raw fuel, otherwise known as Gasoline. High Hydrocarbon (HC) emissions are almost always a sign of poor fuel ignition. However, it’s not always that the engine’s ignition system is responsible for high Hydrocarbon emissions.
Is BS6 equivalent to Euro 6?
Is BS6 emission norms same as Euro 6? While the emission targets under both protocols are the same, exclusive adaptations are required for Indian driving cycles because the average speed is much lower.
What does high HC mean on a car emissions test?
A high HC reading means the test found high HC (hydrocarbons) in your emissions. In other words, too much gas is left in the exhaust after combustion. High HC can be caused by improper combustion, where:
What are the CO2 and O2 readings at 2500 rpm?
HC 40 PPM – Co2 15.5% – CO 0.02 % – O2 O.3% – Lambda 1.01 – AFR 14.5 % At 2500 rpm’s volumetric efficiency decreases, and masks the vacuum leak. Now I’m going to show you some readings with a misfire, no matter the cause of the misfire, it will raise HC and O2 levels.
What causes elevated NOx emissions at high RPM?
Causes of elevated NOX emissions during acceleration include: Exhaust restrictions. At cruise, the engine is lightly loaded and running at high rpm. Under these conditions, HC and CO should be low if the oxygen sensor and feed back control system are working properly, and the catalytic converter is in good condition.
What are the results of the HC and co test?
The test results are summarized below: Essentially, HC and CO are far too high while NO is fairly low. Also, CO2 is low, indicating lean conditions. What are some possible causes, and some ways to investigate them, that could cause the test results?
A high HC reading means the test found high HC (hydrocarbons) in your emissions. In other words, too much gas is left in the exhaust after combustion. High HC can be caused by improper combustion, where:
HC 40 PPM – Co2 15.5% – CO 0.02 % – O2 O.3% – Lambda 1.01 – AFR 14.5 % At 2500 rpm’s volumetric efficiency decreases, and masks the vacuum leak. Now I’m going to show you some readings with a misfire, no matter the cause of the misfire, it will raise HC and O2 levels.
The test results are summarized below: Essentially, HC and CO are far too high while NO is fairly low. Also, CO2 is low, indicating lean conditions. What are some possible causes, and some ways to investigate them, that could cause the test results?
What is the CO2 reading on a car?
This is a computer control vehicle and care should be taken because the CO may increase when the engine is in close loop. The oxygen sensor sees the unburned o2 and this will increase the injector on time. HC 610 ppm – CO2 9.05% – CO .39 % – O2 7.80% – LAMBDA 1.50 – AFR 21.6% The next readings are indicating a rich condition.