Experimental study on factors affecting lean combustion limit of S.I engine fueled with compressed natural gas and hydrogen blends

Energy ◽  
2012 ◽  
Vol 38 (1) ◽  
pp. 58-65 ◽  
Author(s):  
Xin Wang ◽  
Hongguang Zhang ◽  
Baofeng Yao ◽  
Yan Lei ◽  
Xiaona Sun ◽  
...  
Keyword(s):  
Experimental Study ◽  
Natural Gas ◽  
Compressed Natural Gas ◽  
Factors Affecting ◽  
Lean Combustion ◽  
Combustion Limit

Effects of Engine Operating Parameters on Lean Combustion Limit of Hydrogen Enhanced Natural Gas Engine

2011 ◽  
Vol 383-390 ◽  
pp. 6116-6121
Author(s):  
Xin Wang ◽  
Hong Guang Zhang ◽  
Yan Lei ◽  
Xiao Lei Bai ◽  
Xiao Na Sun ◽  
...  
Keyword(s):  
Experimental Study ◽  
Natural Gas ◽  
Engine Speed ◽  
Operating Parameters ◽  
Ignition Timing ◽  
Compressed Natural Gas ◽  
Gas Engine ◽  
Natural Gas Engine ◽  
Lean Combustion ◽  
Combustion Limit

An experimental study was conducted on a S.I. engine fueled by compressed natural gas and hydrogen blends (HCNG), in order to test different engine operating parameters that affect lean combustion limit (L.C.L) of HCNG engine. Firstly, constant ignition timing and ignition timing under maximum L.C.L (L.L.T) conditions were compared, then L.L.T conditions were adopted in this paper. The results indicated that for each condition, neither over-retarded nor over-advanced ignition timing are advised in order to achieve leaner combustion. L.C.L increases with hydrogen fraction in the blends, and slightly increases with throttle opening, while decreases when the engine speed is raised

scholarly journals Experimental Study of Ceramic Coated Piston Crown for Compressed Natural Gas Direct Injection Engines

2013 ◽  
Vol 68 ◽  
pp. 505-511 ◽  
Author(s):  
Helmisyah Ahmad Jalaludin ◽  
Shahrir Abdullah ◽  
Mariyam Jameelah Ghazali ◽  
Bulan Abdullah ◽  
Nik Rosli Abdullah
Keyword(s):  
Experimental Study ◽  
Natural Gas ◽  
Direct Injection ◽  
Compressed Natural Gas ◽  
Direct Injection Engines ◽  
Piston Crown
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