Impact of EGR fraction on diesel engine performance considering heat loss and temperature-dependent properties of the working fluid

2009 ◽  
Vol 33 (4) ◽  
pp. 415-430 ◽  
Author(s):  
S. M. Aithal
Keyword(s):  
Diesel Engine ◽  
Heat Loss ◽  
Engine Performance ◽  
Working Fluid ◽  
Temperature Dependent ◽  
Temperature Dependent Properties

scholarly journals Production and characterization of biodiesel from mango seed oil (MSO)

2021 ◽  
Vol 40 (4) ◽  
pp. 598-607
Author(s):  
P.A. Okonkwo ◽  
I. Omenihu
Keyword(s):  
Diesel Engine ◽  
Seed Oil ◽  
Mangifera Indica ◽  
Engine Performance ◽  
Working Fluid ◽  
Fuel Additive ◽  
Ic Engine ◽  
Production And Consumption ◽  
Mango Seed ◽  
Astm D6751

Biodiesel in the past, was once considered a fringe fuel. However today, the production and consumption of this fuel has grown as a sustainable and much more eco-friendly alternative to the Conventional diesel (Petroleum diesel), for diesel engines; if not in pure form, it will be in blends of different ratios, or as a fuel additive, to improve engine performance and ensure longevity. In this research, oil from Mango (Mangifera indica) seed was extracted through Soxhlet solvent process, and converted into biodiesel by the method of Transesterification. This process involved the reaction between the extracted oil and methanol at an optimal temperature of 60°C, and 1%w/v of the catalyst (KOH) concentration for optimal yield of biodiesel. The produced biodiesel was analyzed and evaluated by comparing its physical characteristics to that of Conventional (petroleum) diesel fuel. The properties analyzed were; Density, Heating value, flash point, specific gravity, viscosity, cloud point, water content and pour point. The biodiesel from mango seed oil (MSO) compared excellently well with the values obtained for the commercially available petroleum diesel, dispensed at government approved filling stations in Nigeria. The biodiesel so produced and characterized, was subsequently subjected to an engine test, in a four-stroke internal compression (IC), (diesel) engine loaded between 120 – 200 rpm, to determine its suitability as a fuel. The result was compared with the Conventional diesel characteristics in terms of brake power output, mass flow rate, thermal efficiency, and specific fuel consumption (SFC) and so on. The biodiesel results compared very well with most of the data generated on the conventional diesel, and satisfied the ASTM-D6751 and the EN14214 standard requirements for suitability as working fluid in an IC engine, especially with regard to SFC, which translates to the direct running cost of every diesel engine.

Effects of friction and temperature-dependent specific-heat of the working fluid on the performance of a Diesel-engine

2006 ◽  
Vol 83 (2) ◽  
pp. 153-165 ◽  
Author(s):  
A. Al-Sarkhi ◽  
J.O. Jaber ◽  
M. Abu-Qudais ◽  
S.D. Probert
Keyword(s):  
Diesel Engine ◽  
Specific Heat ◽  
Working Fluid ◽  
Temperature Dependent

Effects of Heat Transfer and Friction on the Performance of a Miller Cycle Diesel Engine with Considerations of Variable Specific Heats of the Working Fluid

2013 ◽  
Vol 311 ◽  
pp. 211-216
Author(s):  
Jiann Chang Lin ◽  
Shuhn Shyurng Hou
Keyword(s):  
Heat Transfer ◽  
Diesel Engine ◽  
Power Output ◽  
Thermal Efficiency ◽  
Friction Loss ◽  
Working Fluid ◽  
Miller Cycle ◽  
Temperature Dependent ◽  
Specific Heats ◽  
Negative Effect

The objective of this study is to analyze the effects of friction and heat transfer with considerations of variable specific heats of working fluid on the performance of a Miller cycle Diesel engine. The variations in power output and thermal efficiency with compression ratio, and the relations between the power output and the thermal efficiency of the Miller cycle Diesel engine are presented. The results show that the power output as well as the efficiency where maximum power output occurs will decrease with the increase of heat loss. The temperature-dependent specific heats of working fluid have a significant influence on the performance. The power output and the working range of the Miller cycle Diesel engine increase with the increase of specific heats of working fluid, while, the efficiency decreases with the increase of specific heats of working fluid. The influence of the parameter b related to the friction loss has a negative effect on the performance. Therefore, the power output and efficiency of the cycle decrease with increasing b. Note that the effects of heat transfer with considerations of variable specific heats of working fluid and friction loss on the performance are significant and should be considered in practice cycle analysis.

Effect of Continuous Hydrogen Injection on Diesel Engine Performance and Emission

2017 ◽  
Vol 11 (4) ◽  
pp. 213
Author(s):  
Mohamad Nordin Mohamad Norani ◽  
Boon Tuan Tee ◽  
Zakaria Muhammad Zulfattah ◽  
Mohamad Norani Mansor ◽  
Md Isa Ali
Keyword(s):  
Diesel Engine ◽  
Engine Performance ◽  
Performance And Emission

Diesel Engine Performance with Karanja Biodiesel Oil by Using TOPSIS Method

2020 ◽  
Author(s):  
Mukul Agarwal ◽  
Shailendra Kumar ◽  
Bhupendra Singh Chauhan
Keyword(s):  
Diesel Engine ◽  
Engine Performance ◽  
Topsis Method

Improving diesel engine performance and emissions characteristics fuelled with biodiesel

Fuel ◽  
2021 ◽  
Vol 302 ◽  
pp. 121097
Author(s):  
M. Mourad ◽  
Khaled R.M. Mahmoud ◽  
El-Sadek H. NourEldeen
Keyword(s):  
Diesel Engine ◽  
Engine Performance ◽  
Performance And Emissions ◽  
Engine Performance And Emissions

scholarly journals Temperature-Dependent Properties of Molten Li2BeF4 Salt Using Ab Initio Molecular Dynamics

ACS Omega ◽  
2021 ◽  
Author(s):  
Khagendra Baral ◽  
Saro San ◽  
Ridwan Sakidja ◽  
Adrien Couet ◽  
Kumar Sridharan ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Ab Initio ◽  
Ab Initio Molecular Dynamics ◽  
Temperature Dependent ◽  
Temperature Dependent Properties
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