Ways To Reduce Nox And Its Impact - 1035 Words

9. NTE: Not to Exceed On top of the level of emission stipulated by the different tiers of emission levels, the EPA also added a NTE Standard by which the engine must meet regardless of how the engine is being operated. As of now, the NTE Standard is based on the 1.25 times the tier level of emission (40 CFR Part 1039) for most cases. 10. Management Practice Apart from meeting the relevant emission tier standard, owners must meet management practice standard. The management practice standard requires fixed interval maintenance for coolant, engine oil, hoses and belts. Records of such practice must be documented and kept. 11. Methods to reduce NOx and its impact Methods to reduce NOx vary depending on the emission standard. As†¦show more content†¦These credits can be used to offset engines with emissions above the FELs or to trade with other manufacturer. 13. Emergency and Non-emergency CI engines The NSPS classifies stationary ICE into different group, emergency, non-emergency engines. Non-emergency stationary ICE shall meet Tier 4 Final emission standards (from 2015) while emergency stationary ICE shall meet Tier 2 (if Tier 3 is not listed) to Tier 3 emission standards. There is no run time limits for Non-emergency stationary ICE. Run time for Emergency ICE are unlimited during emergencies but are limited to 100 hours per year for maintenance and testing of which 50 of the 100 hours can be used to support local grid reliability. 14. Special Provisions for Non-emergency CI engines. Due to the higher level of system complexity to meet Tier 4 emission standards, these non- emergency CI engines are always limited in operation(or inoperable) when emission control devices (ECD) are not working. This is a problem during an emergency, when a limited engine may not be able to provide power to critical loads. Under this special provision, owners are able to override the engine limitation due to malfunctioning ECD during an emergency. The engine will only be required to meet Tier 1 emission during such emergency. 15. How it is being tested? The CI Engines are tested at full rated power as per ISO-8178-4 (Steady-state and transient test cycles for different engine applications). The testShow MoreRelatedEssay On The Development Of The Albertan Oil Sands1457 Words   |  6 Pagesclimate change than trying to reduce it. Along with greenhouse gases, other pollutants are released into the air during oil sands operations. These pollutants are harmful to ambient air quality and human health. In the Alberta oil sands, regional air quality is mainly impacted by the production of nitrogen dioxide and nitric oxide (NOx gases) (â€Å"Air Emissions,† 2015). 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