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What is Unburned Hydrocarbons mean?
Unburnt hydrocarbons (UHCs) are the hydrocarbons emitted after petroleum is burned in an engine.
When unburnt fuel is emitted from a combustor, the emission is caused by fuel "avoiding" the flame zones. For example, in piston engines, some of the fuel-air mixture "hides" from the flame in the crevices provided by the piston ring grooves. Further, some regions of the combustion chamber may have a very weak flame, that is, they have either very fuel-lean or very fuel-rich conditions and consequently they have a low combustion temperature. These regions will cause intermediate species such as formaldehyde and alkenes to be emitted. Sometimes the term "products of incomplete combustion," or PICs, is used to describe such species.
reference| Full Form | Category |
|---|---|
| Unburned Hydrocarbons Chemistry | Academic & Science |
| University Healthsystem Consortium | Academic & Science |
| Universal Holiday Centre | Academic & Science |
| Ultimate Holding Company | Business |
| Utah Housing Corporation | Business |
| Unicorn Hobby Corporation | Business |
| United HealthCare | Business |
| United Hitech Corporation | Business |
| Unburned Hydrocarbons | Chemistry |
| University Homecoming Committee | Community |
| Ukrainian Heritage Club | Community |
| Utrecht Haskell Compiler | Computing |
| Universal Host Controller | Computing |
| Usb Host Controller | Computing |
| University Honors College | Educational Institute |
| Undershoot Hardened Circuitry | Electronics |
| Ultra-high Contrast | Electronics |
| Ultimate Host Country | General |
| Ultra Hybrid Carbon | General |
| Ultra High Capacity | General |
| Universal Holding Cabinet | General |
| Ultimate Hunter Competitions | General |
| Unwanted Horse Coalition | General |
| Upper Hemi Con | General |
| Upper Hemi Continous | General |
| Ultra High Compression | General |
| Unburned Hydrocarbon | General |
| Universal Honored Crown | General |
| Universal Health Care | Governmental |
| Ultra Hard Core | Internet |
| University Hospitals of Cleveland | Medical |
| United Hospital Center | Medical |
| Universal Health Coverage | Medical |
| University Health Center | Medical |
| Urban Health Collaborative | Medical |
| University Hospital Clinics | Medical |
| Under Home Care | Medical |
| Underground Hacking Council | Messaging |
Posted on 07 Jan 2025, this text provides information on Miscellaneous in Chemistry related to Chemistry. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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