Synthetic phenolic antioxidants to biodiesel: path toward NOx reduction of an unmodified indirect injection diesel engine

2014 ◽  
Vol 79 ◽  
pp. 82-90 ◽  
Author(s):  
I.M. Rizwanul Fattah ◽  
Masjuki Hj Hassan ◽  
Md Abul Kalam ◽  
Abdelaziz Emad Atabani ◽  
Md Joynul Abedin
Keyword(s):  
Diesel Engine ◽  
Nox Reduction ◽  
Phenolic Antioxidants ◽  
Synthetic Phenolic Antioxidants

Water Addition in Diesel Engine Intake for NOx Reduction: Comparison of Modeling and Experiments

2003 ◽  
Author(s):  
Bhaskar Tamma ◽  
Juan Carlos Alvarez ◽  
Aaron J. Simon
Keyword(s):  
Diesel Engine ◽  
Fuel Efficiency ◽  
Nox Reduction ◽  
Engine Performance ◽  
Thermodynamic Cycle ◽  
Nox Emission ◽  
Water Addition ◽  
Predictive Tool ◽  
Fuel Flow ◽  
Influence Of Water

Reduction in emissions, especially NOx has been the main study of various engine researchers in the light of stringent emission norms. To reduce the time and cost involved in testing these technologies, engine thermodynamic cycle predictive tools are used. The present work uses one such predictive tool (GT Power from Gamma Technologies) for predicting the influence of water addition in a turbocharged 6-cylinder diesel engine intake on engine performance and NOx emissions. The experiments for comparison with modeling included the introduction of liquid water in the engine intake stream, between the compressor and intercooler ranging from 0 to 100% of fuel flow rate. NOx emission reduced linearly with water addition with reduction of 63% with less than 1% penalty on fuel efficiency at 100% water addition. The GT Power model predicted the performance within 5% of experimental data and NOx emission within 10% of the experiments.

Reliability Test of a Rule-Based SCR Control Strategy for Cleaner Heavy-Duty Diesel Engine using Biodiesel Blend

2013 ◽  
Vol 284-287 ◽  
pp. 903-907
Author(s):  
Chih Cheng Chou ◽  
Chia Jui Chiang ◽  
Yong Yuan Ku ◽  
Chih Chieh Chen
Keyword(s):  
Diesel Engine ◽  
Control Strategy ◽  
Nox Reduction ◽  
Rule Based ◽  
Heavy Duty Diesel Engine ◽  
Control Objective ◽  
Biodiesel Blend ◽  
The Mean ◽  
Heavy Duty Diesel ◽  
Mean Time

A rule-based SCR control strategy is developed for a 5% biodiesel fueled heavy-diesel engine. The control objective is to reduce the tail-pipe NOx emission while minimizing the urea dosage in a reliable fashion. A total of 32 runs of experimental test in ESC and ETC driving modes are conducted to demonstrate the performance and reliability of the rule-based control strategy. Average NOx reduction rates of 78.5% and 60% are achieved for the ESC and ETC tests respectively. In the mean time, the average urea dosage is 160 gram for the ESC tests and 0.49 % of the fuel consumption for the ETC tests. Variation of less than 7.78% and 12.05% for the ESC and ETC tests respectively demonstrate the reliability of the rule-based control strategy.

Preconcentration of synthetic phenolic antioxidants by using magnetic zeolites derived with carboxylatocalix[4]arenes combined with high performance liquid chromatography

The Analyst ◽  
2015 ◽  
Vol 140 (17) ◽  
pp. 5944-5952 ◽  
Author(s):  
Shaoyan Zhou ◽  
Zheng Li ◽  
Xueju Lv ◽  
Bin Hu ◽  
Qiong Jia
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Phenolic Antioxidants ◽  
Magnetic Zeolite ◽  
Synthetic Phenolic Antioxidants

A hybrid adsorbent assembling carboxylatocalix[4]arene onto the surface of magnetic zeolite was prepared and used for the preconcentration and determination of synthetic phenolic antioxidants coupled with HPLC.

scholarly journals Study on the influence of alumina nanomethanol fluid on the performance, combustion and emission of DMDF diesel engine

2021 ◽  
Vol 268 ◽  
pp. 01004
Author(s):  
Zenghui Yin ◽  
Jing Hao ◽  
Jiangjun Wei
Keyword(s):  
Diesel Engine ◽  
Nox Reduction ◽  
Chemical Properties ◽  
Reduction Ratio ◽  
Fuel Consumption Rate ◽  
Combustion Duration ◽  
Combined Use ◽  
Important Research Topic ◽  
Nanofluid Fuel ◽  
Physical And Chemical

With the increasingly strict domestic emission regulations, how to reduce diesel emission without affecting its output power has become a hot and important research topic. Due to their unique physical and chemical properties, the combined use of methanol and Al2O3 nanoparticles plays a unique role in promoting combustion and reducing emissions. In this study, Al2O3 methanol nanofluid fuel was injected into the inlet and diesel fuel was injected into the cylinder to explore the influence of Al2O3 nanoparticles on the performance, combustion and emissions of diesel methanol dual fuel (DMDF) entered. The experienced results showed that with the addition of Al2O3 nanoparticles in methanol, the peak pressure and heat release rate in the cylinder of the diesel engine were improved, the combustion delay period and the combustion duration were shortened, the fuel consumption rate was reduced by up to 10.8%, and the braking thermal efficiency was increased by 12.11% at most. With the addition of Al2O3 nanoparticles, NOx, CO, HC and soot ratio emissions of the engine were reduced, among which the NOx reduction ratio was small, and the maximum reduction ratio of the last three was 28.82%, 83.33% and 29.27% respectively.

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