Partial-load and Start-up Operations of Spark-ignition Engine with Oxygen Enriched Air

1993 ◽  
Author(s):  
Shuichi Kajitani ◽  
E. Clasen ◽  
S. Campbell ◽  
K.T. Rhee
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Start Up ◽  
Partial Load

scholarly journals Complementing Syngas with Natural Gas in Spark Ignition Engines for Power Production: Effects on Emissions and Combustion

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3688
Author(s):  
Carlo Caligiuri ◽  
Urban Žvar Baškovič ◽  
Massimiliano Renzi ◽  
Tine Seljak ◽  
Samuel Rodman Oprešnik ◽  
...  
Keyword(s):  
Natural Gas ◽  
Spark Ignition ◽  
External Input ◽  
Spark Ignition Engine ◽  
Experimental Methodology ◽  
Pollutant Emission ◽  
Limiting Factor ◽  
Main Research ◽  
Partial Load ◽  
The Impact

Power generation units based on the bio-syngas system face two main challenges due to (i) the possible temporary shortage of primary sources and (ii) the engine power derating associated with the use of low-energy density fuels in combustion engines. In both cases, an external input fuel is provided. Hence, complementing syngas with traditional fuels, like natural gas, becomes a necessity. In this work, an experimental methodology is proposed, aiming at the quantification of the impact of the use of both natural gas and syngas in spark ignition (SI) engines on performance and emissions. The main research questions focus on investigating brake thermal efficiency (BTE), power derating, and pollutant emission (NOx, CO, THC, CO2) formation, offering quantitative findings that present the basis for engine optimization procedures. Experimental measurements were performed on a Toyota 4Y-E engine (a 4-cylinders, 4-stroke spark ignition engine) at partial load (10 kW) under different syngas energy shares (SES) and at four different spark ignition timings (10°, 25°, 35° and 45° BTDC). Results reveal that the impact of the different fuel mixtures on BTE is negligible if compared to the influence of spark advance variation on BTE. On the other hand, power derating has proven to be a limiting factor and becomes more prominent with increasing SES. An increasing SES also resulted in an increase of CO and CO2 emissions, while NOx and THC emissions decreased with increasing SES.

scholarly journals Different Boosting Systems and their Control Strategies for a Spark Ignition Internal Combustion Engine

2016 ◽  
Vol 14 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Ondřej Bolehovský ◽  
Jan Macek
Keyword(s):  
Steady State ◽  
Gas Exchange ◽  
Combustion Engine ◽  
Control Strategies ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Exhaust Gas ◽  
Engine Exhaust ◽  
Partial Load ◽  
Boost Control

Abstract This research uses 1-D simulation in GT-Power for evaluation of boosting systems for a spark ignition engine. Exhaust gas driven (waste-gated turbocharger) and mechanical driven (Roots blower) boosting systems are assessed in both steady state and transient modes in terms of performance, efficiency, fuel consumption, drivability, energy distribution and other aspects that influence gas exchange phase. Moreover, different boost control strategies, particularly at partial load, are also evaluated. Results of the research are aimed at helping identify an optimal boosting system for standardized or real-world drive cycles.

EFFECT OF AIR-FUEL RATIO ON SYNGAS COMBUSTION IN AN OPTICALLY ACCESSIBLE SPARK IGNITION ENGINE

2017 ◽  
Author(s):  
santiago daniel martinez boggio ◽  
Pedro Lacava ◽  
Maycon Silva ◽  
SIMONA MEROLA ◽  
Adrian Irimescu ◽  
...  
Keyword(s):  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Fuel Ratio ◽  
Syngas Combustion

EXPERIMENTAL ANALYSIS OF THE INFLUENCE OF LUBRICATING OIL AND FUEL ON THE VIBRATION LEVEL OF CRANKSHAFT AXIS SPARK IGNITION ENGINE

2019 ◽  
Author(s):  
Claudio Santana ◽  
Jose Eduardo Mautone Barros ◽  
Juan Carlos Horta Gutiérrez ◽  
Helder Alves de Almeida Junior ◽  
jorgimara braga
Keyword(s):  
Experimental Analysis ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Lubricating Oil ◽  
Vibration Level
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