scholarly journals Engine Behaviour Characterisation of Roselle Biodiesel Through Experimental and Empirical Method

2021 ◽  
Author(s):  
Tikendra Nath Verma ◽  
Upendra Rajak ◽  
Satishchandra Salam ◽  
Asif Afzal ◽  
A. Muthu Manokar ◽  
...  
Keyword(s):  
Alternative Fuels ◽  
Fuel Injection ◽  
Full Range ◽  
Empirical Method ◽  
Injection Timing ◽  
Gas Temperature ◽  
Compression Ignition Engine ◽  
Brake Thermal Efficiency ◽  
Fuel Blends ◽  
Exhaust Gas Temperature

Abstract Persistent increase in demand and depletion of world fossil fuel reserve has necessitated the lookout for alternative fuels. One such indigenous biodiesel with significant potential is the biodiesel extracted from Roselle whose technical feasibility to operate with compression ignition engine is investigated in this study. Experimental and empirical methodologies had been employed to characterise the fuel blends while operating at engine loads of 25%, 50%, 75% and 100%, and with fuel injection timings of 19°, 21°, 23°, 25° and 27° bTDC. Results showed that for 20% blend, with advanced injection timing from 19° bTDC to 27° bTDC at full load, brake specific fuel consumption and exhaust gas temperature for 20% blend was higher by 15.84% and 4.60%, while decrease in brake thermal efficiency by 4.4%. Also, 18.89% reduction in smoke, 5.26% increase in CO2 and 12.94% increase in NOx were observed. In addition, an empirical model was developed for full range characterisation. The artificial neural network model thus developed to characterise all the 10 variables was able to predict satisfactorily with r-squared value of 0.9980 ± 0.0011. Further, high correlation amongst certain variables indicated to plausible empirically reduced models.

scholarly journals Experimental and empirical investigation of a CI engine fuelled with blends of diesel and roselle biodiesel

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tikendra Nath Verma ◽  
Upendra Rajak ◽  
Abhishek Dasore ◽  
Asif Afzal ◽  
A. Muthu Manokar ◽  
...  
Keyword(s):  
Alternative Fuels ◽  
Fuel Injection ◽  
Full Range ◽  
Injection Timing ◽  
Gas Temperature ◽  
Fuel Blends ◽  
Technical Ability ◽  
Compression Ignition Engines ◽  
Range Characterization ◽  
Exhaust Gas Temperature

AbstractThe continuous rise in demand, combined with the depletion of the world's fossil fuel reserves, has forced the search for alternative fuels. The biodiesel produced from Roselle is one such indigenous biodiesel with tremendous promise, and its technical ability to operate with compression ignition engines is studied in this work. To characterize the fuel blends, researchers used experimental and empirical approaches while operating at engine loads of 25, 50, 75, and 100%, and with fuel injection timings of 19°, 21°, 23°, 25°, and 27° before top dead center. Results indicate that for 20% blend with the change of injection timing from 19° bTDC to 27° bTDC at full load, brake specific fuel consumption and exhaust gas temperature was increased by 15.84% and 4.60% respectively, while brake thermal efficiency decreases by 4.4%. Also, an 18.89% reduction in smoke, 5.26% increase in CO2, and 12.94% increase in NOx were observed. In addition, an empirical model for full range characterization was created. With an r-squared value of 0.9980 ± 0.0011, the artificial neural network model constructed to characterize all 10 variables was able to predict satisfactorily. Furthermore, substantial correlation among specific variables suggested that empirically reduced models were realistic.

scholarly journals Thermal Performance of Compression Ignition Engine Using High Content Biodiesels: A Comparative Study with Diesel Fuel

2021 ◽  
Vol 13 (14) ◽  
pp. 7688
Author(s):  
Asif Afzal ◽  
Manzoore Elahi M. Soudagar ◽  
Ali Belhocine ◽  
Mohammed Kareemullah ◽  
Nazia Hossain ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fatty Acid Content ◽  
Engine Performance ◽  
Waste Cooking Oil ◽  
Gas Temperature ◽  
Compression Ignition Engine ◽  
Brake Thermal Efficiency ◽  
Acid Oil ◽  
Exhaust Gas Temperature

In this study, engine performance on thermal factors for different biodiesels has been studied and compared with diesel fuel. Biodiesels were produced from Pongamia pinnata (PP), Calophyllum inophyllum (CI), waste cooking oil (WCO), and acid oil. Depending on their free fatty acid content, they were subjected to the transesterification process to produce biodiesel. The main characterizations of density, calorific range, cloud, pour, flash and fire point followed by the viscosity of obtained biodiesels were conducted and compared with mineral diesel. The characterization results presented benefits near to standard diesel fuel. Then the proposed diesel engine was analyzed using four blends of higher concentrations of B50, B65, B80, and B100 to better substitute fuel for mineral diesel. For each blend, different biodiesels were compared, and the relative best performance of the biodiesel is concluded. This diesel engine was tested in terms of BSFC (brake-specific fuel consumption), BTE (brake thermal efficiency), and EGT (exhaust gas temperature) calculated with the obtained results. The B50 blend of acid oil provided the highest BTE compared to other biodiesels at all loads while B50 blend of WCO provided the lowest BSFC compared to other biodiesels, and B50 blends of all biodiesels provided a minimum % of the increase in EGT compared to diesel.

Study And Evaluation of Injection Timing of CIDI Engine Injection Pump Using Alternate Fuel i.e Biodiesel Fuel

2016 ◽  
Vol 8 (01) ◽  
pp. 11-19
Author(s):  
P. K. Singh ◽  
Rohit K. Shrivastava ◽  
K. G. Sinha
Keyword(s):  
Diesel Engine ◽  
Direct Injection ◽  
Biodiesel Fuel ◽  
Injection Timing ◽  
Gas Temperature ◽  
Engine Exhaust ◽  
Brake Thermal Efficiency ◽  
Injection Pump ◽  
Alternate Fuel ◽  
Exhaust Gas Temperature

In this investigation an experimental study of the effects of FIP injection timing on Specific Fuel Consumption(SFC), Brake Thermal Efficiency(BTE), Engine Exhaust Gas Temperature(EEGT), CO, HC, NOX and Smoke of “Kirloskar- 6R1080TA, 6-CylinderInline, Direct Injection, Turbocharged Intercooled, 191 hp Diesel Engine” has been conducted. Injection Timing retardation method has been utilised to reduce SFC, EEGT, CO, HC, NOX, Smoke and increase BTE of Kirloskar-6R1080TA Diesel Engine. The Kirloskar 6R1080TA engine has been tested for six different injection timings (23°, 21°, 20°, 19°, 18° and 17° CA BTC) at same engine speeds and load conditions. The SFC,EEGT, CO, HC, NOX and Smoke of engine are approximately higher and BTE lower for injection timings at 23°, 21°, 20°, 18° and 17° CA BTC than 19° CA BTC at same speed and load. The results are showing that SFC,EEGT,CO,HC,NOX and Smoke are approximately reduces and BTE increases by reducing injection timing from 23° CA BTC to 19° CA BTC. Optimum FIP injection timing for Kirloskar 6R1080TA engine has been achieved at 19° CA BTC.

scholarly journals The Performance Evaluation of Low Heat Rejection Diesel Engine with Alternate Fuels and Pollution Control-A Critical Review

2018 ◽  
Vol 8 (02) ◽  
Author(s):  
Pawan, Mohammed Umair Mohiuddin, Sunkana Kumar Pulijala ◽  
Mohammed , Sunkanapally Vijay and Anvesh Umair Mohiuddin ◽  
Sunkanapally Vijay ◽  
Anvesh Theeradala
Keyword(s):  
Diesel Fuel ◽  
Edible Oils ◽  
Oxides Of Nitrogen ◽  
Gas Temperature ◽  
Compression Ignition Engine ◽  
Brake Thermal Efficiency ◽  
Heat Rejection ◽  
Exhaust Gas Temperature ◽  
Alternate Fuels ◽  
Low Heat Rejection Engine

The usage of alternate fuels has been a priority ever since the depletion of the conventional fuels. During the recent times the concept of using biodiesel as fuel has been predominant due to its ability to be used in the same engine as conventional fuels. The source of biodiesels are mainly non edible oils such as Jatropha and Pongamia. This paper reviews the properties of the alternate fuels when used in the compression-ignition engine. These alternate fuels used are vegetable oils and alcohols. The review compares the key properties of diesel to the alternate fuels used. The properties such as such as brake thermal efficiency, volumetric efficiency, exhaust gas temperature and smoke levels are compared with the values obtained from the usage of conventional diesel fuel in a low heat rejection engine (L.H.R) engine. apart from the properties there is also a need for the check of pollutants emitted during the processes, oxides of nitrogen from diesel fuel and aldehydes from the alternate fuels.

Bio-Diesel from Almond Oil as an Alternative Fuel for Diesel Engines

2014 ◽  
Vol 575 ◽  
pp. 624-627 ◽  
Author(s):  
Nidal H. Abu-Hamdeh ◽  
Khaled A. Alnefaie
Keyword(s):  
Diesel Fuel ◽  
Engine Performance ◽  
Slight Reduction ◽  
Performance Parameters ◽  
Gas Temperature ◽  
Brake Thermal Efficiency ◽  
Almond Oil ◽  
Fuel Blends ◽  
Exhaust Gas Temperature ◽  
Blended Fuels

Different fuel blends containing 10, 30 and 50% almond oil with diesel fuel were prepared and the influence of these blends on emissions and some performance parameters were inspected using a diesel engine. The blends and the diesel fuel were examined under various load conditions and the results showed that almond-blended fuels have slightly different properties than diesel fuel. Measured engine performance parameters have generally showed a slight increase in exhaust gas temperature and in brake specific fuel consumption, and a slight reduction in brake thermal efficiency. Blending of almond oil with diesel fuel reduced the engine CO and increased NOx percentages.

scholarly journals EFFECT OF SiO2 NANOPARTICLES ADDED TO DIESEL FUEL ON THE PERFORMANCE AND POLLUTANT EMISSIONS OF A FOUR STROKE DIESEL ENGINE

2019 ◽  
Vol 19 (2) ◽  
pp. 129-137
Author(s):  
Samer M Abdulhaleem
Keyword(s):  
Diesel Fuel ◽  
Engine Performance ◽  
Sio2 Nanoparticles ◽  
Pollutant Emissions ◽  
Hydrocarbon Emissions ◽  
Gas Temperature ◽  
Compression Ignition Engine ◽  
Brake Thermal Efficiency ◽  
Sio2 Nanoparticle ◽  
Exhaust Gas Temperature

Experimental work has been conducted using silica oxide SiO2 nanoparticle as anadditive to diesel fuel in a compression ignition engine in order to reduce pollutantsemissions and to improve engine performance. A 10 ppm and 20 ppm of SiO2 nanoparticleis added to the diesel fuel. The results showed that the SiO2 nanoparticle blended with dieselfuel improve engine performance such as brake thermal efficiency and brake specific fuelconsumption, increase in exhaust gas temperature and reduces carbon monoxide, andunburned hydrocarbon emissions. Also the results showed that the blend of the SiO2nanoparticle to diesel fuel led to increase in the carbon dioxide in the exhaust gases. Thetests are carried out at constant speed of 1500 rpm, under different engine load conditions.

scholarly journals THE EFFECT OF ISO‐BUTANOL‐DIESEL BLENDS ON ENGINE PERFORMANCE

Transport ◽  
2008 ◽  
Vol 23 (4) ◽  
pp. 306-310 ◽  
Author(s):  
Mohammad Ibrahim Al-Hasan ◽  
Muntaser Al-Momany
Keyword(s):  
Diesel Fuel ◽  
Engine Performance ◽  
Exhaust Gas ◽  
Performance Parameters ◽  
Gas Temperature ◽  
Brake Thermal Efficiency ◽  
Fuel Blends ◽  
Ci Engine ◽  
Exhaust Gas Temperature ◽  
Better Than

The effect of iso‐butanol addition to diesel fuel on engine performance parameters has been experimentally investigated. The used engine was a single cylinder four stroke CI engine Type Lister 1–8. The tests were performed at engine speed that ranges from 375 to 625 with an increment of 42 rpm at different loads and with 10, 20, 30 and 40% v/v iso‐butanol‐diesel fuel blends. The overall engine performance parameters measured included air‐fuel ratio (AFR), exhaust gas temperature, brake power (Bp ), brake specific fuel consumption (bsfc) and brake thermal efficiency (η th ). The experimental results show that AFR, exhaust gas temperature, (Bp ) and (ηbth ) decreased and bsfc increased with iso‐butanol addition compared to net diesel fuel. Also, the obtained results indicate that the engine performance parameters when using up to 30% iso‐butanol in fuel blends are better than that of 40%.

scholarly journals Effect of Injection Timing and Injection Duration of Manifold Injected Fuels in Reactivity Controlled Compression Ignition Engine Operated with Renewable Fuels

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4621
Author(s):  
P. A. Harari ◽  
N. R. Banapurmath ◽  
V. S. Yaliwal ◽  
T. M. Yunus Khan ◽  
Irfan Anjum Badruddin ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Injection Timing ◽  
Compression Ignition ◽  
Cylinder Pressure ◽  
Compression Ignition Engine ◽  
Compressed Natural Gas ◽  
Reactivity Controlled Compression Ignition ◽  
Brake Thermal Efficiency ◽  
Injection Duration ◽  
Fuel Mixtures

In the current work, an effort is made to study the influence of injection timing (IT) and injection duration (ID) of manifold injected fuels (MIF) in the reactivity controlled compression ignition (RCCI) engine. Compressed natural gas (CNG) and compressed biogas (CBG) are used as the MIF along with diesel and blends of Thevetia Peruviana methyl ester (TPME) are used as the direct injected fuels (DIF). The ITs of the MIF that were studied includes 45°ATDC, 50°ATDC, and 55°ATDC. Also, present study includes impact of various IDs of the MIF such as 3, 6, and 9 ms on RCCI mode of combustion. The complete experimental work is conducted at 75% of rated power. The results show that among the different ITs studied, the D+CNG mixture exhibits higher brake thermal efficiency (BTE), about 29.32% is observed at 50° ATDC IT, which is about 1.77, 3.58, 5.56, 7.51, and 8.54% higher than D+CBG, B20+CNG, B20+CBG, B100+CNG, and B100+CBG fuel combinations. The highest BTE, about 30.25%, is found for the D+CNG fuel combination at 6 ms ID, which is about 1.69, 3.48, 5.32%, 7.24, and 9.16% higher as compared with the D+CBG, B20+CNG, B20+CBG, B100+CNG, and B100+CBG fuel combinations. At all ITs and IDs, higher emissions of nitric oxide (NOx) along with lower emissions of smoke, carbon monoxide (CO), and hydrocarbon (HC) are found for D+CNG mixture as related to other fuel mixtures. At all ITs and IDs, D+CNG gives higher In-cylinder pressure (ICP) and heat release rate (HRR) as compared with other fuel combinations.

scholarly journals Performance evaluation of common rail direct injection (CRDI) engine fuelled with Uppage Oil Methyl Ester (UOME)

2015 ◽  
Vol 4 (1) ◽  
pp. 1-10 ◽  
Author(s):  
D.N. Basavarajappa ◽  
N. R. Banapurmath ◽  
S.V. Khandal ◽  
G. Manavendra
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Diesel Engines ◽  
High Speed ◽  
Alternative Fuels ◽  
High Pressures ◽  
Fuel Injection ◽  
Injection Timing ◽  
Engine Operation ◽  
Performance And Emission

For economic and social development of any country energy is one of the most essential requirements. Continuously increasing price of crude petroleum fuels in the present days coupled with alarming emissions and stringent emission regulations has led to growing attention towards use of alternative fuels like vegetable oils, alcoholic and gaseous fuels for diesel engine applications. Use of such fuels can ease the burden on the economy by curtailing the fuel imports. Diesel engines are highly efficient and the main problems associated with them is their high smoke and NOx emissions.  Hence there is an urgent need to promote the use of alternative fuels in place of high speed diesel (HSD) as substitute. India has a large agriculture base that can be used as a feed stock to obtain newer fuel which is renewable and sustainable. Accordingly Uppage oil methyl ester (UOME) biodiesel was selected as an alternative fuel. Use of biodiesels in diesel engines fitted with mechanical fuel injection systems has limitation on the injector opening pressure (300 bar). CRDI system can overcome this drawback by injecting fuel at very high pressures (1500-2500 bar) and is most suitable for biodiesel fuels which are high viscous. This paper presents the performance and emission characteristics of a CRDI diesel engine fuelled with UOME biodiesel at different injection timings and injection pressures. From the experimental evidence it was revealed that UOME biodiesel yielded overall better performance with reduced emissions at retarded injection timing of -10° BTDC in CRDI mode of engine operation.

Effect of Fuel Injection Strategy on DPF Regeneration in Single Cylinder Diesel Engine

2015 ◽  
Author(s):  
Sungjun Yoon ◽  
Hongsuk Kim ◽  
Daesik Kim ◽  
Sungwook Park
Keyword(s):  
Diesel Engine ◽  
Fuel Injection ◽  
Operating Conditions ◽  
Experimental Results ◽  
Exhaust Gas ◽  
Post Injection ◽  
Gas Temperature ◽  
Injection Strategy ◽  
Dpf Regeneration ◽  
Exhaust Gas Temperature

Stringent emission regulations (e.g., Euro-6) force automotive manufacturers to equip DPF (diesel particulate filter) on diesel cars. Generally, post injection is used as a method to regenerate DPF. However, it is known that post injection deteriorates specific fuel consumption and causes oil dilution for some operating conditions. Thus, an injection strategy for regeneration becomes one of key technologies for diesel powertrain equipped with a DPF. This paper presents correlations between fuel injection strategy and exhaust gas temperature for DPF regeneration. Experimental apparatus consists of a single cylinder diesel engine, a DC dynamometer, an emission test bench, and an engine control system. In the present study, post injection timing covers from 40 deg aTDC to 110 deg aTDC and double post injection was considered. In addition, effects of injection pressures were investigated. The engine load was varied from low-load to mid-load and fuel amount of post injection was increased up to 10mg/stk. Oil dilution during fuel injection and combustion processes were estimated by diesel loss measured by comparing two global equivalences ratios; one is measured from Lambda sensor installed at exhaust port, the other one is estimated from intake air mass and injected fuel mass. In the present study, the differences in global equivalence ratios were mainly caused from oil dilution during post injection. The experimental results of the present study suggest an optimal engine operating conditions including fuel injection strategy to get appropriate exhaust gas temperature for DPF regeneration. Experimental results of exhaust gas temperature distributions for various engine operating conditions were summarized. In addition, it was revealed that amounts of oil dilution were reduced by splitting post injection (i.e., double post injection). Effects of injection pressure on exhaust gas temperature were dependent on combustion phasing and injection strategies.

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