This graph assumes that all bioethanols are burnt in their country of origin and that previously existing cropland is used to grow the feedstock.[75]参考译文:英国生物乙醇和化石燃料的碳强度数据图。此图假设所有生物乙醇都在其原产国燃烧,且使用先前已有的耕地种植原料。[75]图片作者:Mike Young The ...
Although the majority of fuel is probably burnt in turbulent combustion, data on laminar burning velocities are still needed as input to many turbulent combustion models. Also, in internal combustion engines the initial combustion is laminar, so again there is a need for the laminar burning ...
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The burnt gases were scavenged during a long valve overlap by means of boosted air supplied by an external compressor. An electrohydraulic fully-variable valve train enabled the optimisation of the gas exchange process in a variety of engine operating conditions. The air-fuel mixture formation was...
Two wheeled motor bikes are playing an important role in urban passenger transportation owing to ease of handling and affordable cost. Maximum amount of unburnt hydrocarbons (HC) and carbon monoxide (CO) are emitted during cold start of spark ignition engines. The current work presents the ...
This heterogeneous mixture does not combust completely and results in higher hydrocarbons and carbon monoxide emissions [22]. 4.2.3. Unburnt hydrocarbon (UBHC) emission The distinction of unburnt hydrocarbon emission with respect to brake power for standard, LHR, and exhaust gas recirculation Shows ...
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Volumetric efficiency is a measure of how much air your engine pumped relative to it's displacement. Air is the limiting reagent in the chemical reaction, more air lets you use more fuel = more power. A higher volumetric efficiency lets you get more work out of an engine with smaller displ...
The comparison basis was focused on the performance via brake power (BP), torque (Tq) and volumetric efficiency (VE) and the emissions via CO (carbon monoxide), CO2 (carbon dioxide) and UHC (unburnt hydrocarbons). Results demonstrated that the nB and iB alternatives provide a significant ...
These analyses reveal that the H 2 /O 2 pathways are very important for both ethanol and DME in the 3% O 2 cases. In contrast, the importance of fuel-specific reactions overtakes that of H 2 /O 2 reactions when fuels are burnt in the cold air or in the vitiated oxidant stream with...