Experimental study on mechanical and tribological behaviour of Ti-3Al-2.5V alloy at high load condition using response surface methodology

2021 ◽  
pp. 1-14
Author(s):  
Babu Narayananan ◽  
Murugan Megalingam
Keyword(s):  
Experimental Study ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Load Condition ◽  
High Load ◽  
Tribological Behaviour ◽  
High Load Condition

Experimental Study of EGR on Performance and Emissions of a Turbocharged DME Engine

2014 ◽  
Vol 886 ◽  
pp. 257-261
Author(s):  
Jun Hua Wu ◽  
Fu Shan Zuo ◽  
Yong Hui Zhang
Keyword(s):  
Experimental Study ◽  
Fuel Consumption ◽  
Substantial Reduction ◽  
Load Condition ◽  
High Load ◽  
Reduction Of No ◽  
Low Load ◽  
Emission Behavior ◽  
High Load Condition

This paper presents anexperimental study on reduction of NOx emission of a turbochargedengine fuelled with DME by means of EGR. Effects of EGR rate on engineefficiency and emission behavior was evaluated. The results show that the EGRcould be used as an effective way to reduce NOx emission. NOx isreduced almost linearly with increase of EGR rate. At low load condition, theNOx emission is reduced by 80% with 40% EGR rate without any economypenalty. At high load condition, the same substantial reduction of NOx couldbe achieved with only 20% EGR rate. While the HC and CO emissions are increasedwith increase of EGR rate. However, it is worth noting that EGR had a negativeeffect on fuel consumption at high load. Low EGR ratio should be taken at highengine load condition.

Adsorption behavior of a computer-aid designed magnetic molecularly imprinted polymer via response surface methodology

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 61161-61169 ◽  
Author(s):  
Kai Zhang ◽  
Wenyue Zou ◽  
Hongyan Zhao ◽  
Pierre Dramou ◽  
Chuong Pham-Huy ◽  
...  
Keyword(s):  
Experimental Study ◽  
Computer Simulation ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Molecularly Imprinted Polymer ◽  
Adsorption Behavior ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Computer Aid

A combined computer simulation and experimental study of magnetic a molecularly imprinted polymer was put forward and verified.

Experimental study of electrostatic hazard inside scrubber column using response surface methodology

2019 ◽  
Vol 200 ◽  
pp. 46-68 ◽  
Author(s):  
Jingyao Wang ◽  
Yue Sun ◽  
Xiaodan Gao ◽  
M. Sam Mannan ◽  
Benjamin Wilhite
Keyword(s):  
Experimental Study ◽  
Response Surface Methodology ◽  
Response Surface

Effect of Load-Relieving Structure against Overload under High Overload

2013 ◽  
Vol 328 ◽  
pp. 421-425
Author(s):  
Quan Li Ning ◽  
Jun Li ◽  
Dong Chen ◽  
Gao Peng Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Constitutive Equation ◽  
Equivalent Stress ◽  
Three Dimensional ◽  
Load Condition ◽  
High Load ◽  
Dynamical Response ◽  
Response Distribution ◽  
High Load Condition

Three-dimensional visco-elastic lame deformation incremental constitutive equation is derived based on Total Lagrangian method, and structural dynamical response distribution in the grain during launching is simulated numerically by finite element method under high load condition for projectile-based equipment, the equivalent stress in the bottom of load-relieving structure and the Y-displacement in the top of load-relieving structure are calculated. The results show that the stress is ameliorated after the function of load-relieving subassembly, and it can decrease impact. Also Y-displacement is accord with limit request, and when reaching the maximum, the transmutation will be comeback.

Study on Combustion and Emission Characteristics of Acidic Oil Biodiesel

2014 ◽  
Vol 541-542 ◽  
pp. 982-988
Author(s):  
Jian Wu ◽  
Yang Hua ◽  
Zhan Cheng Wang ◽  
Li Li Zhu ◽  
Hong Ming Wang
Keyword(s):  
Diesel Engine ◽  
Load Condition ◽  
Pressure Rise ◽  
High Load ◽  
Emission Characteristics ◽  
Combustion Heat ◽  
Pressure Maximum ◽  
High Load Condition ◽  
Blended Fuel ◽  
Hc Emissions

In order to develop a new fuel alternative for the diesel engine, experiment of combustion and emission characteristics was carried on a high pressure common rail diesel engine fueled with diesel and acidic oil biodiesel blends, then the results were compared and analyzed. The results indicate that after adding acidic oil biodiesel, the ignition delay is prolonged, combustion pressure, maximum rate of pressure rise and maximum combustion temperature all increase. The maximum combustion heat release rate of blended fuel is higher than diesel at low and middle loads, and lower at high load condition. Compared with diesel, HC emissions of blends decrease dramatically with the increases of blending ratio. NOX emissions of blends are slightly higher than diesel. CO emissions of blends are almost the same as that of diesel. According to the results, acidic oil biodiesel has wide application prospects as an alternative fuel.

Experimental Study on Optimizing the Effect of Drilling Parameters on Roundness Error of Holes of Aluminum 7075 Using Response Surface Methodology

2012 ◽  
Vol 184-185 ◽  
pp. 981-987
Author(s):  
Setayesh Hakak Zargar ◽  
Vahid Tahmasbi ◽  
K. Besharati ◽  
Mohammad Farzami
Keyword(s):  
Experimental Study ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Surface Quality ◽  
Cutting Speed ◽  
Drilling Process ◽  
Regression Equations ◽  
Roundness Error ◽  
Drill Diameter ◽  
Aluminum 7075

In the present work, an experimental study has been made to optimize the drilling process parameters. Response surface methodology based on central composite design (CCD) has been used to study and analyze the experiments. Twist drill diameter, cutting speed and feed of drilling were chosen as variables to study the process performance for the responses of the hole surface quality (Ra) and the roundness error on aluminum 7075. Experiments were performed on a newly designed experimental setup developed in the laboratory. The results identified the most important parameters to maximize the hole surface quality and minimize roundness error. Finally, regression equations were obtained to predict the responses for different values of variables.

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