scholarly journals Guide Vane Swirl and Tumble Device to Improve in-cylinder Air Flow of CI Engine Using Vegetable Oil

2014 ◽  
Vol 90 ◽  
pp. 425-430 ◽  
Author(s):  
Idris Saad ◽  
Saiful Bari
Keyword(s):  
Vegetable Oil ◽  
Guide Vane ◽  
Air Flow ◽  
Ci Engine

Comprehensive Study on the Effect of CuO Nano Fluids Prepared Using One-Step Chemical Synthesis Method on the Behavior of Waste Cooking Oil Biodiesel in Compression Ignition Engine

2019 ◽  
Vol 11 (4) ◽  
Author(s):  
Ramanathan Velmurugan ◽  
Jaikumar Mayakrishnan ◽  
S. Induja ◽  
Selvakumar Raja ◽  
Sasikumar Nandagopal ◽  
...  
Keyword(s):  
Chemical Synthesis ◽  
Vegetable Oil ◽  
Diesel Fuel ◽  
Synthesis Method ◽  
Waste Cooking Oil ◽  
Compression Ignition ◽  
Cooking Oil ◽  
One Step ◽  
Ci Engine ◽  
The Impact

Vegetable oil is considered as one among the promising alternatives for diesel fuel as it holds properties very close to diesel fuel. However, straight usage of vegetable oil in compression ignition (CI) engine resulted in inferior performance and emission behavior. This can be improved by modifying the straight vegetable oil into its esters, emulsion, and using them as a fuel in CI engine showcased an improved engine behavior. Waste cooking oil (WCO) is one such kind of vegetable oil gained a lot of attraction globally as it is generated in a large quantity locally. The present investigation aims at analyzing various parameters of single cylinder four stroke CI engine fueled with waste cooking oil biodiesel (WCOB), waste cooking oil biodiesel water emulsion (WCOBE) while the engine is operated with a constant speed of 1500 rpm. Furthermore, an attempt is made to study the impact of nanofluids in the behavior of the engine fueled with WCOB blended with nanofluids (WCOBN50). This work also explored a novel method of producing nanofluids using one-step chemical synthesis method. Copper oxide (CuO) nanofluids were prepared by the above mentioned method and blended with waste cooking oil biodiesel (WCOBN50) using ethylene glycol as a suitable emulsifier. Results revealed that brake thermal efficiency (BTE) and brake specific fuel consumption (BSFC) of WCOBN50 are significantly improved when compared to WCOB and WCOBE. Furthermore, a higher reduction in oxides of nitrogen (NOx), carbon monoxide (CO), hydrocarbon (HC), and smoke emissions were observed with WCOBN50 on comparison with all other tested fuels at different power outputs. It is also identified that one-step chemical synthesis method is a promising technique for preparing nanofluids with a high range of stability.

Effect of hydrogen on compression-ignition (CI) engine fueled with vegetable oil/biodiesel from various feedstocks: A review

2022 ◽  
Author(s):  
S. Thiyagarajan ◽  
EdwinGeo Varuvel ◽  
V. Karthickeyan ◽  
Ankit Sonthalia ◽  
Gopalakrishnan Kumar ◽  
...  
Keyword(s):  
Vegetable Oil ◽  
Compression Ignition ◽  
Ci Engine

scholarly journals Numerical Investigation of Fluid Flow and In-Cylinder Air Flow Characteristics for Higher Viscosity Fuel Applications

Processes ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 439 ◽  
Author(s):  
Mohd Fadzli Hamid ◽  
Mohamad Yusof Idroas ◽  
Shukriwani Sa’ad ◽  
Teoh Yew Heng ◽  
Sharzali Che Mat ◽  
...  
Keyword(s):  
Guide Vane ◽  
Flow Characteristics ◽  
Engine Performance ◽  
Intake Manifold ◽  
3D Analysis ◽  
Ansys Fluent ◽  
Ic Engine ◽  
Cold Flow ◽  
Ci Engine ◽  
Combustion Processes

Generally, the compression ignition (CI) engine that runs with emulsified biofuel (EB) or higher viscosity fuel experiences inferior performance and a higher emission compared to petro diesel engines. The modification is necessary to standard engine level in order to realize its application. This paper proposes a guide vane design (GVD), which needs to be installed in the intake manifold, is incorporated with shallow depth re-entrance combustion chamber (SCC) pistons. This will organize and develop proper in-cylinder airflow to promote better diffusion, evaporation and combustion processes. The model of GVD and SCC piston was designed using SolidWorks 2017; while ANSYS Fluent version 15 was utilized to run a 3D analysis of the cold flow IC engine. In this research, seven designs of GVD with the number of vanes varied from two to eight vanes (V2–V8) are used. The four-vane model (V4) has shown an excellent turbulent flow as well as swirl, tumble and cross tumble ratios in the fuel-injected region compared to other designs. This is indispensable to break up heavier fuel molecules of EB to mix with the air that will eventually improve engine performance.

Improving Vegetable Oil Fueled CI Engine Characteristics Through Diethyl Ether Blending

2016 ◽  
Author(s):  
S. Vedharaj ◽  
R. Vallinayagam ◽  
S. Mani Sarathy ◽  
Robert W. Dibble
Keyword(s):  
Vegetable Oil ◽  
Diethyl Ether ◽  
Cetane Number ◽  
Gaseous Emissions ◽  
Engine Operation ◽  
Lower Viscosity ◽  
Ignition Quality ◽  
Ci Engine ◽  
Ignition Characteristics ◽  
Ignition Quality Tester

In this research, the flow and ignition properties of vegetable oil (VO) are improved by blending it with diethyl ether (DEE). DEE, synthesized from ethanol, has lower viscosity than diesel and VO. When DEE is blended with VO, the resultant DEEVO mixtures have favorable properties for compression ignition (CI) engine operation. As such, DEEVO20 (20% DEE + 80% VO) and DEEVO40 (40% DEE + 60% VO) were initially considered in the current study. The viscosity of VO is 32.4*10−6 m2/s; the viscosity is reduced with the increase of DEE in VO. In this study, our blends were limited to a maximum of 40% DEE in VO. The viscosity of DEEVO40 is 2.1*10−6 m2/s, which is comparable to that of diesel (2.3*10−6 m2/s). The lower boiling point and flash point of DEE improves the fuel spray and evaporation for DEEVO mixtures. In addition to the improvement in physical properties, the ignition quality of DEEVO mixtures is also improved, as DEE is a high cetane fuel (DCN = 139). The ignition characteristics of DEEVO mixtures were studied in an ignition quality tester (IQT). There is an evident reduction in ignition delay time (IDT) for DEEVO mixtures compared to VO. The IDT of VO (4.5 ms), DEEVO20 (3.2 ms) and DEEVO40 (2.7 ms) was measured in IQT. Accordingly, the derived cetane number (DCN) of DEEVO mixtures increased with the increase in proportion of DEE. The reported mixtures were also tested in a single cylinder CI engine. The start of combustion (SOC) was advanced for DEEVO20 and DEEVO40 compared to diesel, which is attributed to the high DCN of DEEVO mixtures. On the other hand, the peak heat release rate decreased for DEEVO mixtures compared to diesel. Gaseous emissions such as nitrogen oxide (NOX), total hydrocarbon (THC) and smoke were reduced for DEEVO mixtures compared to diesel. The physical and ignition properties of VO are improved by the addition of DEE, and thus, the need for the trans-esterification process is averted. Furthermore, this blending strategy is simpler and enables operation of straight run oils and fats in CI engine, replacing diesel completely.

Effect by Guide Vane Swirl and Tumble Device to Improve the Air-Fuel Mixing of Diesel Engine Running With Higher Viscous Fuels

2013 ◽  
Author(s):  
Idris Saad ◽  
Saiful Bari
Keyword(s):  
Alternative Fuels ◽  
Parametric Optimization ◽  
Reference Data ◽  
Guide Vane ◽  
Optimization Technique ◽  
Optimum Number ◽  
Ansys Software ◽  
Mixing Processes ◽  
Ci Engine ◽  
Ci Engines

The purpose of this study was to investigate the effect guide vane swirl and tumble device (GVSTD) on the in-cylinder airflow particularly to generate turbulent kinetic energy (TKE) and velocity inside the combustion chamber and around fuel injected region. High velocity and TKE would accelerate the evaporation, diffusion and mixing processes of CI engines, particularly when alternative fuels of higher viscosity and density (known as HVF — higher viscous fuel) are used. A verified simulation base model was prepared by the SolidWorks software and analysed using ANSYS software to study the reference data of the resulting in-cylinder airflow characteristics. Then GVSTD models were developed and imposed on the intake runner of the base model. The parametric optimization technique was used to find the optimum number of vanes for the GVSTD model. This was done by preparing 10 GVSTD models with the vane number varied from 3 to 12. The models were then tested on the base model individually. Generally, GVSTD improve in-cylinder TKE and velocity. Additionally, this research found that GVSTD with 3 vanes resulted in an improved TKE and velocity of about 6.3% and 10.4% respectively when compared to the base model. Therefore, it may be said that the use of GVSTD can increase the chances to improve the performance of a CI engine and reduce the emission when run on HVF.

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