Effects of injection strategy and combustion chamber modification on a single-cylinder diesel engine

Şener, Ramazan; Yangaz, Murat Umut; Gül, M. Zafer

doi:10.1016/j.fuel.2020.117122

Cited by 78 publications

(28 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These are because combustion occurs in the expansion period after TDC. The experimental results in this article show a little smaller than some previous studies [22,[24][25][26]. However, several previous studies using different mixed fuels.…”

Section: Resultscontrasting

confidence: 62%

Investigation of The Effect Biodiesel-Butanol-Water Fuel Blend Pressure on A Single-Cylinder Diesel Engine

Erdiwansyah

Mahidin

Yusop

et al. 2021

ARFMTS

View full text Add to dashboard Cite

Energy demand from the community, which continues to increase has resulted in depletion of petroleum (fossil) energy in recent years. Many researchers have sought to find alternative fuels to replace dependence on conventional energy. The mixing of alcohol into diesel fuel has also been carried out by several previous researchers. The main focus of this research is to investigate the combustion performance of diesel engines using a mixture of biodiesel-butanol-water and diesel (B5Bu5W5). This research experiment used a single-cylinder diesel engine with different speeds at 25% and 50% engine load. The experimental results show that the maximum cylinder pressure reaches 72.32 bar when the engine load reaches 50%. While at 25% engine load press the maximum cylinder 33.62 bar. The heat dissipation for 50% engine load is also higher than the engine load 25% respectively 34.39% and 33.62%. Overall results show that cylinder pressure increases when the load and engine speed increase. However, the combustion time is a little slower than when using pure diesel fuel.

show abstract

Section: Resultscontrasting

confidence: 62%

Investigation of The Effect Biodiesel-Butanol-Water Fuel Blend Pressure on A Single-Cylinder Diesel Engine

Erdiwansyah

Mahidin

Yusop

et al. 2021

ARFMTS

View full text Add to dashboard Cite

show abstract

“…Recent studies have shown that the geometry of the combustion chamber is another dominant parameter that can control the level of cylinder-out emissions and engine performance by directly affecting the quality of mixture formation and subsequently, flame propagation inside the engine cylinder, especially when using single injection strategies under low load conditions. [41][42][43] In 2017, Lee and Park carried out multidimensional computations on the impacts of combustion chamber geometry on the performance and amounts of exhaust gas emissions in a diesel-gasoline RCCI engine. 44 In their study, which was conducted using KIVA coupled with CHEMKIN code, they indicated that by optimizing the combustion chamber geometry, indicated specific fuel consumption (ISFC) will be enhanced by 9% along with the reduction of both soot and NOx emissions.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the impacts of combustion chamber bowl geometry and injection timing on a reactivity controlled compression ignition engine at low and high load conditions

Jafari

Seddiq

Mirsalim

2020

International Journal of Engine Research

View full text Add to dashboard Cite

The present paper aims to assess the impacts of diesel injection timing and two bowl geometries including re-entrant and wide-shallow combustion chambers on the combustion characteristics, emissions formation, and fuel consumption in a reactivity controlled compression ignition diesel engine under low and high load (five and nine bar indicating mean effective pressure) conditions. The results revealed that diesel injection at −60 CA ATDC under low load conditions significantly decreased soot and NOx emissions simultaneously for both piston bowl geometries. The use of the wide-shallow chamber decreased the period of the ignition delay and increased the engine operable load range as a result of more stable combustion under high-load conditions compared to the re-entrant chamber. Moreover, at all diesel injection timings, the indicated specific fuel consumption was decreased by nearly 4.8 and 6.6% under low and high load conditions, respectively when the wide-shallow combustion chamber was used since the heat transfer loss was lower than that of the re-entrant chamber. However, NOx emission under high load conditions at the center of the combustion chamber and more soot emission in the exhaust gas are two disadvantages of the wide-shallow chamber versus the re-entrant combustion chamber.

show abstract

“…So as to achieve this condition, the fuel and air in the cylinder should be mixed well, and complete combustion should also occur at a lower temperature to inhibit NOX formation. The combustion chamber optimization, the usage of a new type of swirl piston bowl, the optimization of valve timings, and injection parameters can improve combustion efficiency as well as reduce emissions (Sener et al 2020;Şener and Gül 2021). However, in these methods, the emission reduction is not enough and is also limited by the soot-NOX tradeoff (Deb et al 2015;Zhou et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Ducted Fuel Injection Strategy for Soot Reduction in Compression Ignition Engine

Şener

2022

JAFM

View full text Add to dashboard Cite

The ducted fuel injection strategy is a method that significantly reduces soot emissions in direct injection compression ignition engines. Fuel is injected into the combustion chamber through a duct enhancing the airfuel mixture. It guarantees more efficient combustion and less soot formation by reducing the equivalence ratio at the autoignition zone inside the combustion chamber. The effects of the duct fuel injection on the performance, combustion, and emission of the compression ignition engine were numerically investigated in this study. The duct geometries with varying diameters, lengths, and stand-off distances were examined to find the most appropriate size using an experimentally validated CFD model and detailed soot model. Results show that up to 66.7% reduction in soot emissions were observed with the usage of the ducted fuel injection strategy compared to conventional diesel combustion. In addition to reducing soot emissions, the ducted fuel injection strategy decreased CO and HC emissions by 20.4% and 7.8%, respectively. While the ducted fuel injection strategy reduces emissions, it does not decrease engine performance; on the contrary, it increases gross IMEP by 0.58%.

show abstract

Effects of injection strategy and combustion chamber modification on a single-cylinder diesel engine

Cited by 78 publications

References 36 publications

Investigation of The Effect Biodiesel-Butanol-Water Fuel Blend Pressure on A Single-Cylinder Diesel Engine

Investigation of The Effect Biodiesel-Butanol-Water Fuel Blend Pressure on A Single-Cylinder Diesel Engine

Assessment of the impacts of combustion chamber bowl geometry and injection timing on a reactivity controlled compression ignition engine at low and high load conditions

Numerical Investigation of Ducted Fuel Injection Strategy for Soot Reduction in Compression Ignition Engine

Contact Info

Product

Resources

About