Optical study on the effects of the hydrogen injection timing on lean combustion characteristics using a natural gas/hydrogen dual-fuel injected spark-ignition engine

2021 ◽  
Author(s):  
Ren Zhang ◽  
Lin Chen ◽  
Haiqiao Wei ◽  
Jiaying Pan ◽  
Jinguang Li ◽  
...  
Keyword(s):  
Natural Gas ◽  
Spark Ignition ◽  
Combustion Characteristics ◽  
Spark Ignition Engine ◽  
Dual Fuel ◽  
Injection Timing ◽  
Optical Study ◽  
Lean Combustion

scholarly journals Effect of Spark Advance on a Gas Run Automotive Spark Ignition Engine

2010 ◽  
pp. 42-49 ◽  
Author(s):  
Md Ehsan
Keyword(s):  
Natural Gas ◽  
Flame Propagation ◽  
Chemical Engineering ◽  
Engine Performance ◽  
Spark Ignition ◽  
Constant Load ◽  
Combustion Characteristics ◽  
Spark Ignition Engine ◽  
Optimum Performance ◽  
Automotive Engine

Petrol engines can run on natural gas, with little modification. The combustion characteristics of naturalgas is different from that of petrol, which eventually affects the engine performance. The performance of atypical automotive engine was studied running on natural gas, firstly at a constant speed for various loadsand then at a constant load for a range of speeds and results were compared with performance using petrol.Variation of the spark advance, consisting of centrifugal and vacuum advance mechanisms, wasinvestigated. Results showed some reduction in power and slight fall of efficiency and higher exhausttemperature, for natural gas. The air-fuel ratio for optimum performance was higher for gas than for petrol.This variation in spark requirement is mainly due to the slower speed of flame propagation for natural gas.For both the cases, the best power spark advance for natural gas was found to have higher values thanpetrol. This issue needs to be addressed during retrofitting petrol engines for running on natural gas.Journal of Chemical Engineering Vol.ChE 24 2006 42-49

Combustion, performance and emission analysis of a natural gas-hydrous ethanol dual-fuel spark ignition engine with internal exhaust gas recirculation

2019 ◽  
Vol 195 ◽  
pp. 1187-1198 ◽  
Author(s):  
Roberto Berlini Rodrigues da Costa ◽  
Juan J. Hernández ◽  
Alysson Fernandes Teixeira ◽  
Nilton Antonio Diniz Netto ◽  
Ramón Molina Valle ◽  
...  
Keyword(s):  
Natural Gas ◽  
Exhaust Gas Recirculation ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Dual Fuel ◽  
Exhaust Gas ◽  
Emission Analysis ◽  
Performance And Emission ◽  
Gas Recirculation ◽  
Hydrous Ethanol
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