Effects of H2 on the number concentration of particulate matter in diesel engines using a low-pressure loop exhaust-gas recirculation system

2014 ◽  
Vol 39 (12) ◽  
pp. 6746-6752 ◽  
Author(s):  
Youngsoo Cho ◽  
Soonho Song ◽  
Kwang Min Chun
Keyword(s):  
Particulate Matter ◽  
Diesel Engines ◽  
Exhaust Gas Recirculation ◽  
Low Pressure ◽  
Number Concentration ◽  
Exhaust Gas ◽  
Recirculation System ◽  
Gas Recirculation

Diesel engines with low-pressure exhaust-gas recirculation

MTZ worldwide ◽  
2008 ◽  
Vol 69 (2) ◽  
pp. 20-26 ◽  
Author(s):  
Stefan Münz ◽  
Christiane Römuss ◽  
Peter Schmidt ◽  
Kai-Henning Brune ◽  
Heinz-Peter Schiffer
Keyword(s):  
Diesel Engines ◽  
Exhaust Gas Recirculation ◽  
Low Pressure ◽  
Exhaust Gas ◽  
Gas Recirculation

scholarly journals Implementation of an experimental pilot reproducing the fouling of the exhaust gas recirculation system in diesel engines

2012 ◽  
Vol 25 ◽  
pp. 01019
Author(s):  
Cécile Gaborieau ◽  
Alain Sommier ◽  
Jean Toutain ◽  
Yannick Anguy ◽  
Gérald Crepeau ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Exhaust Gas Recirculation ◽  
Exhaust Gas ◽  
Recirculation System ◽  
Gas Recirculation

scholarly journals Experimental study on the effect of high-pressure and low-pressure exhaust gas recirculation on gasoline engine and turbocharger

2018 ◽  
Vol 10 (11) ◽  
pp. 168781401880960 ◽  
Author(s):  
Xianqing Shen ◽  
Kai Shen ◽  
Zhendong Zhang
Keyword(s):  
High Pressure ◽  
Fuel Consumption ◽  
Gasoline Engine ◽  
Exhaust Gas Recirculation ◽  
Low Pressure ◽  
Operating Conditions ◽  
Exhaust Gas ◽  
Partial Load ◽  
Recirculation System ◽  
Gas Recirculation

The effects of high-pressure and low-pressure exhaust gas recirculation on engine and turbocharger performance were investigated in a turbocharged gasoline direct injection engine. Some performances, such as engine combustion, fuel consumption, intake and exhaust, and turbocharger operating conditions, were compared at wide open throttle and partial load with the high-pressure and low-pressure exhaust gas recirculation systems. The reasons for these changes are analyzed. The results showed EGR system of gasoline engine could optimize the cylinder combustion, reduce pumping mean effective pressure and lower fuel consumption. Low-pressure exhaust gas recirculation system has higher thermal efficiency than high-pressure exhaust gas recirculation, especially on partial load condition. The main reasons are as follows: more exhaust energy is used by the turbocharger with low-pressure exhaust gas recirculation system, and the lower exhaust gas temperature of engine would optimize the combustion in cylinder.

Characteristics of Integrated Air Control and Low-Pressure Exhaust Gas Recirculation Valve for Diesel Engines

2020 ◽  
Vol 21 (1) ◽  
pp. 239-247
Author(s):  
Byeong Gyu Jeong ◽  
Jang Hyeok Won ◽  
Kwang Chul Oh ◽  
Hyung Seok Heo ◽  
Seokjeong Bae ◽  
...  
Keyword(s):  
Diesel Engines ◽  
Exhaust Gas Recirculation ◽  
Low Pressure ◽  
Exhaust Gas ◽  
Air Control ◽  
Gas Recirculation

scholarly journals Development of Low Pressure Exhaust Gas Recirculation System

2017 ◽  
Vol 52 (6) ◽  
pp. 773-777
Author(s):  
Takashi Ueda ◽  
Kazuhisa Ito ◽  
Naohiro Hiraoka
Keyword(s):  
Exhaust Gas Recirculation ◽  
Low Pressure ◽  
Exhaust Gas ◽  
Recirculation System ◽  
Gas Recirculation

scholarly journals Emission characteristics of iso-propanol/gasoline blends in a spark-ignition engine combined with exhaust gas re-circulation

2014 ◽  
Vol 18 (1) ◽  
pp. 269-277 ◽  
Author(s):  
Jing Gong ◽  
Yingjia Zhang ◽  
Chenglong Tang ◽  
Zuohua Huang
Keyword(s):  
Particulate Matter ◽  
Exhaust Gas Recirculation ◽  
Spark Ignition ◽  
Number Concentration ◽  
Spark Ignition Engine ◽  
Nox Emission ◽  
Emission Characteristics ◽  
Exhaust Gas ◽  
Recirculation Rate ◽  
Gas Recirculation

Experiments were carried out in a spark-ignition engine fueled with iso-propanol/gasoline blends. Emission characteristics of this engine were investigated experimentally, including gaseous emissions (HC, CO, NOx) and particulate matter emission in term of number and size distributions. The effects of different iso-propanol percentages, loads and exhaust gas recirculation rates on emissions were analyzed. Results show that the introduction of exhaust gas recirculation reduces the NOx emission and NOx emission gives the highest value at full load condition. HC and CO emissions present inconspicuous variations at all the loads except the load of 10%. Additionally, HC emission shows a sharp increase for pure propanol when the exhaust gas recirculation rate is up to 5%, while little variation is observed at lager exhaust gas recirculation rates. Moreover, the particulate matter number concentration increases monotonically with the increase of load and the decrease of exhaust gas recirculation rate. There exists a critical spark timing that produces the highest particulate matter number concentration at all the blending ratios.

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