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Exhaust emissions from internal combustion engines are measured using an Exhaust Gas Constant Volume Sampler (CVS). It can be used for different sorts of engines, like those used in power generating, though it is primarily employed to assess the emissions of automobiles.
The CVS system is made up of a number of parts that work together to precisely assess an engine’s emissions. A particle filter, a bag or canister for collecting exhaust gases, and various sensors and devices for monitoring the amounts of various contaminants in the exhaust gas are among the components.
To enable precise measurements of the emissions, the exhaust gas is diluted to a predetermined concentration in the dilution tunnel, usually 10% or less. Before the exhaust gas is sampled, any solid particles are removed with the help of the particulate filter.
Several contaminants, such as carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and particulate matter, are then assessed in the collected exhaust gas (PM). Gas analyzers, which can measure the amounts of various contaminants in the exhaust gas, are commonly used to take the measurements.
In order to comply with various environmental requirements, such as the Clean Air Act in the United States, the CVS system is frequently used for emissions testing.
Regulators can make sure internal combustion engines aren’t releasing too many pollutants into the atmosphere, which might have a negative impact on both human health and the environment, by measuring the emissions they produce.
Global exhaust gas constant volume sampler(CVS) market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
Selective Catalytic Reduction is utilized on M&HCVs with engines producing 130hp to 400hp, while Exhaust Gas Recirculation is used on small to medium CVs with up to 180hp in power.
For the BS IV engines powering its lineup of commercial vehicles, Tata Motors has declared that SCR (Selective Catalytic Reduction) and EGR (Exhaust Gas Recirculation) technology are ready.
Tata Motors continued to use EGR technology in its small-to-medium category of CVs with engine power up to 180hp, which aids in reducing NOx emissions from the engine. According to Tata, EGR technology was created in-house and is compatible with all of the company’s engines, including the latest 3- and 5-liter models.
Tata Motors has implemented the internationally renowned SCR technology in its medium and heavy-duty CVs, which range in horsepower from 130 to 400.
These engines were created by Tata Cummins, a joint venture between Tata Motors and Cummins Inc. of the US. SCR technology enables engines to run at more ideal combustion temperatures, improving power and fuel efficiency while generating less NOx and particulate matter.
SCR can be built up further to satisfy impending BS VI regulations, whereas EGR is a technology that is very inexpensive, straightforward, and quick to implement.
