scholarly journals Performance and Exhaust Emission in a Premixed Compression Ignition Engine with High Pressure Fuel Injection Near a Top Dead Center.

2002 ◽  
Vol 68 (665) ◽  
pp. 262-269 ◽  
Author(s):  
Naoki SHIMAZAKI ◽  
Takeshi MIYAMOTO ◽  
Hisashi AKAGAWA ◽  
Kinji TSUJIMURA
Keyword(s):  
High Pressure ◽  
Fuel Injection ◽  
Exhaust Emission ◽  
Compression Ignition ◽  
Compression Ignition Engine

scholarly journals Effective Combustion of Glycerol in the Compression Ignition Engine Equipped with a Double Direct Fuel Injection

2020 ◽  
Author(s):  
Michal Gruca ◽  
Michal Pyrc ◽  
Magdalena Szwaja ◽  
Stanislaw Szwaja
Keyword(s):  
High Pressure ◽  
Alternative Fuels ◽  
Fuel Injection ◽  
Direct Injection ◽  
Biodiesel Production ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Exhaust Gases ◽  
Exhaust Gas Emission ◽  
Ethanol Blends

The paper presents results from investigation focused on toxicity content in the exhaust gases emitted by the internal combustion compression ignition engine fueled with glycerol-ethanol blends at ratio of 50/50% by volume. Innovative issue of this engine is application of 2 high pressure injectors for glycerol-ethanol blend and diesel fuel direct injection at high pressure over 200 MPa. As known, glycerol is considered is by-product from biodiesel production technologies, hence its cost is relatively low to other renewable alternative fuels, which can be applied as a fuel to the reciprocating piston engines. Tests on exhaust gases toxicity were performed. It was found that the toxic components UHC, NOx and CO were below the maximal allowed limits. Both NOx and smoke emissions were strongly reduced with increase in glycerol-ethanol fraction in the fuel. Summarizing, such a fueling strategy proposed in this paper made it possible to effectively and environmentally friendly combust crude glycerol in the compression ignition engine working in a heat and power cogeneration unit. Exhaust gas emission tests conducted in this case confirmed usability of this technology to be implemented into practice.

scholarly journals Effective Combustion of Glycerol in a Compression Ignition Engine Equipped with Double Direct Fuel Injection

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6349
Author(s):  
Michal Gruca ◽  
Michal Pyrc ◽  
Magdalena Szwaja ◽  
Stanislaw Szwaja
Keyword(s):  
High Pressure ◽  
Alternative Fuels ◽  
Fuel Injection ◽  
Biodiesel Production ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Exhaust Gas Emission ◽  
Pilot Fuel ◽  
Production Technologies ◽  
Ethanol Blends

The paper presents results from an investigation focused on toxicity content in the exhaust gases emitted by an internal combustion compression ignition engine fueled with glycerol-ethanol blends at ratio of 50/50% by volume. The innovative issue of this engine is the application of two high pressure injectors for injecting both glycerol-ethanol blend and diesel pilot fuel at high pressure (over 200 MPa). As known, glycerol is considered a byproduct from biodiesel production technologies, hence its cost is relatively low compared to other renewable alternative fuels which can be applied as fuels to the reciprocating piston engines. It was found that the toxic components UHC, NOx and CO were below the maximum allowed limits. Both NOx and smoke emissions were strongly reduced with increasing glycerol-ethanol fraction in the fuel. Summarizing, a fueling strategy such as that proposed in this paper makes it possible to effectively and environmentally friendly combust crude glycerol in compression ignition engines working in a heat and power cogeneration unit. Exhaust gas emission tests conducted in this case confirmed the usability of this technology to be implemented into practice.

Performance of multi-dimensional models for simulating diesel premixed charge compression ignition engine combustion using low- and high-pressure injectors

2005 ◽  
Vol 6 (5) ◽  
pp. 475-486 ◽  
Author(s):  
S-C Kong ◽  
Y Ra ◽  
R D Reitz
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Spray Angle ◽  
Low Temperature Combustion ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Detailed Chemistry ◽  
Engine Combustion ◽  
Temperature Combustion ◽  
Hsdi Diesel Engine

An engine CFD model has been developed to simulate premixed charge compression ignition (PCCI) combustion using detailed chemistry. The numerical model is based on the KIVA code that is modified to use CHEMKIN as the chemistry solver. The model was applied to simulate ignition, combustion, and emissions processes in diesel engines operated to achieve PCCI conditions. Diesel PCCI experiments using both low- and high-pressure injectors were simulated. For the low-pressure injector with early injection (close to intake valve closure), the model shows that wall wetting can be minimized by using a pressure-swirl atomizer with a variable spray angle. In the case of using a high-pressure injector, it is found that late injection (SOI = 5 ° ATDC) benefits soot emissions as a result of low-temperature combustion at highly premixed conditions. The model was also used to validate the emission reduction potential of an HSDI diesel engine using a double injection strategy that favours PCCI conditions. It is concluded that the present model is useful to assess future engine combustion concepts, such as PCCI and low-temperature combustion (LTC).

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