Optimization of hydrogen‐enriched diesel/n‐Amyl alcohol‐fueled engine to meet emission standards through varying nozzle opening pressure and static injection timing

Heat Transfer ◽  
2021 ◽  
Author(s):  
Navyasree Seelam ◽  
S. K. Gugulothu ◽  
Burra Bhasker ◽  
Jibitesh K. Panda ◽  
Ragireddy V. Reddy
2014 ◽  
Vol 130 ◽  
pp. 450-457 ◽  
Author(s):  
Balaji Mohan ◽  
Wenming Yang ◽  
Vallinayagam Raman ◽  
Vedharaj Sivasankaralingam ◽  
Siaw Kiang Chou

2014 ◽  
Vol 953-954 ◽  
pp. 1376-1380
Author(s):  
Wei Li ◽  
Yun Peng Li ◽  
Fan Bin Li

Performance test of the engine fueled with DME-methanol blends was conducted on a 4102BQ diesel engine. The results show that: by increasing the fuel pump plunger diameter, delaying injection timing, and reducing nozzle-opening pressure, the rated power of the engine, fueled with DM90 blends (Mass ratio of DME and methanol is 9:1), descended 13.97% relative to the original diesel engine, but the soot emissions did not appeared in all test conditions. In full load condition, NOx emissions declined by 55.1%, CO emissions fell by 65.8%, but HC emissions increased by 21.6%.


2009 ◽  
Vol 13 (3) ◽  
pp. 103-112 ◽  
Author(s):  
Krishnan Purushothaman ◽  
Govindan Nagarajan

Experiments have been conducted to study the effect of nozzle opening pressure on the combustion process and exhaust emissions of a direct injection diesel engine fueled with orange skin powder diesel solution (OSPDS). Earlier investigation by the authors revealed that 30% OSPDS was optimum for better performance and reduced emissions. In the present investigation the nozzle opening pressure was varied with 30% OSPDS and the combustion, performance, and emissions characteristics were studied and compared with those of diesel fuel. The different nozzle opening pressures studied were 215 bar, 235 bar, and 255 bar. The results showed that the cylinder pressure with 30% OSPDS at 235 bar fuel nozzle opening pressure, was higher than that of diesel fuel as well as at other nozzle opening pressures. Similarly, the ignition delay was longer with shorter combustion duration in case of 30% OSPDS at 235 bar nozzle opening pressure. The brake thermal efficiency was higher at 235 bar than that of other fuel nozzle opening pressures with OSPDS and lower than that of diesel fuel. The NOx emission was higher and HC and CO emissions were lower with 30% OSPDS at 235 bar. The smoke emission was marginally lower at 235 bar and marginally higher at 215 bar than diesel fuel. The performance of the engine at 235 bar nozzle opening pressure was better with reduction in emissions except NOx than other nozzle opening pressures.


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