Comparison of Performance of Diesel and LPG Blends in Dual Fuel Engine with Tallow Methyl Ester (TME) as a Fuel

2014 ◽  
Vol 592-594 ◽  
pp. 1869-1874 ◽  
Author(s):  
Tarigonda Hari Prasad ◽  
P. Mallikarjuna Rao ◽  
R. Meenakshi Reddy
Keyword(s):  
Diesel Engine ◽  
Energy Efficient ◽  
Methyl Esters ◽  
Dual Fuel ◽  
Brake Thermal Efficiency ◽  
Animal Fats ◽  
Hc Emissions ◽  
Smoke Opacity ◽  
Cooking Oils ◽  
Alternate Fuels

Bio-diesel manufactured from vegetable oils, animal fats and used cooking oils is an alternative fuel for diesel engines. It offers many advantages such as renewable, energy efficient, nontoxic, sulfur free and bio-degradable, and also offers cleaner combustion and reduces global warming gas emissions. Experiments are conducted by fuelling the diesel engine with bio-diesel with LPG blends. The engine is properly modified to operate under dual fuel operation using LPG as the mixed fuel along with Diesel and TME as ignition source. The brake thermal efficiency of TME with LPG (2LPM) blend is increased at an average of 5%.HC emissions of TME with LPG (2LPM) blend is reduced by about at an average 21%. CO emissions of TME with LPG (2LPM) blends are reduced at an average of 33.6%. NOx emissions of TME with LPG (2LPM) blend are reduced at an average of 4.4%. Smoke Opacity of TME with LPG (2LPM) blend is reduced at an average of 10%. Keywords Biodiesel, diesel engine, alternate fuels, tallow oil and methyl esters of tallow oil, LPG

scholarly journals Performance and Emission Characteristics of Diesel Engine with the Biodiesel-Acetylene Addition using Dual Fuel Mode

2019 ◽  
Vol 9 (2S4) ◽  
pp. 616-621
Keyword(s):  
Diesel Engine ◽  
Research Work ◽  
Engine Performance ◽  
Dual Fuel ◽  
Emission Characteristics ◽  
Flow Rates ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Smoke Opacity ◽  
Fuel Technology

This research work investigated the diesel engine performance using 20% Pongamia grease methyl ester through the effect of different flow rates of acetylene using dual-fuel technique. Acetylene be inducted within the intake various at the flow rates of 1lpm, 2lpm, 3lpm and 4lpm along with air. Initially a test was conducted by diesel fuel along with POME20 on different loads. Then the experiment was carried out with POME20 with different flow rates of acetylene. Addition of acetylene increased the brake thermal efficiency (BTE) among POME20 at all acetylene flow rates on 100% load. The results showed that the BTE was enhanced via regarding 1–3.4% at knock-limited acetylene shares at 100% load. The engine emits higher NOx emission for POME20 without acetylene share and then it is additional improved with the adding up of acetylene shares, while the smoke opacity was reduced by 47% with acetylene addition at complete load. Here is a decrease in HC as well as CO emissions were experiential through an acetylene orientation along with POME20. Finally, it is suggested that the poor presentation as well as emissions connected through biodiesel into a diesel engine can be improved through the induction of acetylene with 4lpm flow rate in the intake various by dual fuel technology.

scholarly journals Performance Assessment of DI-Diesel Engine using the Blend of Sunflower Oil and Rice Bran Oil

2019 ◽  
Vol 8 (4) ◽  
pp. 4048-4052
Keyword(s):  
Diesel Engine ◽  
Sunflower Oil ◽  
Fuel Injection ◽  
Rice Bran Oil ◽  
Engine Performance ◽  
Performance And Emission ◽  
Animal Fats ◽  
Di Diesel Engine ◽  
Hc Emissions ◽  
Direct Fuel Injection

Biodiesel, a derivative of vegetable oils and animal fats, is used nowadays as an alternative renewable and sustainable fossil fuel. In this work, the investigation of manufacture, characterization, and results of biodiesel blends are carried out using two important feedstock’s, sunflower oil and ricebran oil on engines. For the collective advantageous of sunflower oil and ricebran oil, the two biodiesels are combined together and the mixture is analysed to assess the engine performance and emission characteristics. NaOH catalyzed transesterification process is used for producing the Biodiesels A 4.4 kW, four-stroke, single-cylinder and direct fuel injection diesel engine is used for measuring physic-chemical with full load and varying speed conditions and using the specifications of ASTM D6751 standard, the properties are compared. It is observed that the Biodiesel mixtures produce a low brake torque and high brake-specific fuel consumption (BSFC) in addition to the reduction of CO and HC emissions. NOx, however, is reduced considerably with the improvement of brake thermal efficiency. The Performance analysis indicates that the mixture of sunflower oil and ricebran oil improves performance and emission characterizes over sunflower oil and ricebran oil biodiesel when they are unmixed..

Effect of Water Injection in Acetylene-Diesel Dual Fuel DI Diesel Engine

2012 ◽  
Author(s):  
T. Lakshmanan ◽  
A. Khadeer Ahmed ◽  
G. Nagarajan
Keyword(s):  
Diesel Engine ◽  
Thermal Efficiency ◽  
Alternative Fuels ◽  
Gas Flow ◽  
Water Injection ◽  
Intake Manifold ◽  
Dual Fuel ◽  
Intake Port ◽  
Gas Temperature ◽  
Brake Thermal Efficiency

Gaseous fuels are good alternative fuels to improve the energy crisis of today’s situation due to its clean burning characteristics. However, the incidence of backfire and knock remains a significant barrier in commercialization. With the invention of latest technology, the above barriers are eliminated. One such technique is timed injection of water into the intake port. In the present investigation, acetylene was aspirated in the intake manifold of a single cylinder diesel engine, with a gas flow rate of 390 g/h, along with water injected in the intake port, to overcome the backfire and knock problems in gaseous dual fuel engine. The brake thermal efficiency and emissions such as NOx, smoke, CO, HC, CO2 and exhaust gas temperature were studied. Dual fuel operation of acetylene induction with injection of water results in lowered NOx emissions with complete elimination of backfire and knock at the expense of brake thermal efficiency.

scholarly journals Experimental Investigation of Performance and Emission Characteristics of Mahua Biodiesel in Diesel Engine

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
S. Savariraj ◽  
T. Ganapathy ◽  
C. G. Saravanan
Keyword(s):  
Diesel Engine ◽  
Exhaust Gas ◽  
Gas Temperature ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Performance And Emissions ◽  
Hc Emissions ◽  
Exhaust Gas Temperature ◽  
Mahua Biodiesel ◽  
No Emissions

Biodiesel derived from nonedible feed stocks such as Mahua, Jatropha, Pongamia are reported to be feasible choices for developing countries including India. This paper presents the results of investigation of performance and emissions characteristics of diesel engine using Mahua biodiesel. In this investigation, the blends of varying proportions of Mahua biodiesel and diesel were prepared, analyzed compared with the performance of diesel fuel, and studied using a single cylinder diesel engine. The brake thermal efficiency, brake-specific fuel consumption, exhaust gas temperatures, Co, Hc, No, and smoke emissions were analyzed. The tests showed decrease in the brake thermal efficiencies of the engine as the amount of Mahua biodiesel in the blend increased. The maximum percentage of reduction in BTE (14.3%) was observed for B-100 at full load. The exhaust gas temperature with the blends decreased as the proportion of Mahua increases in the blend. The smoke, Co, and No emissions of the engine were increased with the blends at all loads. However, Hc emissions of Mahua biodiesels were less than that of diesel.

scholarly journals Evaluation Dual Fuel Engine Fuelled With Hydrogen and Biogas as Secondary Fuel

2019 ◽  
Vol 8 (2) ◽  
pp. 1902-1905
Keyword(s):  
Diesel Engine ◽  
Thermal Efficiency ◽  
Dominant Role ◽  
Single Mode ◽  
Dual Fuel ◽  
Nox Emissions ◽  
Brake Thermal Efficiency ◽  
Pilot Fuel ◽  
Present Context ◽  
Inlet Manifold

The present energy scenario hydrogen fuel plays a dominant role in the power generation. Due to its unique characteristics of an extensive range of flammability, high flame speed, and diffusivity. In this present investigation, the diesel engine is converted into dual-fuel mode devoid of major conversions of the engine. The tests are performed on a dual-fuel mode and investigated the efficiency, emissions, and combustion features of the diesel engine. In the present context, hydrogen and biogas are injected from the inlet manifold as subsidiary fuel and diesel are injected as pilot fuel. The gaseous fuel injected in two different flow rates they are, 3 litres per minute (lpm), and 4lpm. The results from the experimentation revealed that the diesel with 4 lpm of hydrogen shows the 31.11 % enhancement of brake thermal efficiency but it shows 4.14% higher NOX emissions when compared with the pure diesel. But it shows. At the same time diesel with 4 lpm of Biogas exhibits 15.90% enhancement of brake thermal efficiency and 8.96% decrease in the NOX emissions in contrast to that of the single-mode of fuel with diesel.

scholarly journals Production of Biodiesel from Eruca Sativa (Taramira) and Its Utilization in DI Diesel Engine for Examining the Exhaust Emissions

2020 ◽  
Vol 8 (5) ◽  
pp. 727-733
Keyword(s):  
Diesel Engine ◽  
Edible Oils ◽  
Test Methods ◽  
Biodiesel Production ◽  
Eruca Sativa ◽  
Global Environmental ◽  
Di Diesel Engine ◽  
Hc Emissions ◽  
Increasing Demand ◽  
Smoke Opacity

Increasing demand of the carbon fuels in daily life and the global environmental degradation has led to the biodiesel production from non-edible oils because they has high potential as ecological, clean, facile and renewable fuel. In present study, oil is extracted from dried Eruca sativa seeds using mechanical expellers, the oil yield obtained is calculated. By alkaline transesterification, the obtained oil is converted into biodiesel. The physicochemical properties of Eruca sativa biodiesel are tested following ASTM test methods, all the properties satisfies and meet the ASTM D-6751 biodiesel standard specifications. The gas chromatography technique is used for the analysis of fatty acid composition of the biodiesel, which shows that the erucic acid has higher percentage composition. Emission characteristics (i.e. carbon monoxide, carbon dioxide, hydro carbon, nitrogen oxide and smoke) of diesel engine are analyzed for the biodiesel and its blends (i.e. B10, B20, B30, B40 and B100) and are compared with the petroleum diesel. From the emission results obtained it is observed that, the CO and CO2 emissions are lower for B10 and B20 blends whereas the HC emissions are lesser than diesel for all the blends. For B10, B20 and B30 blends the NOX emission and smoke opacity has been reduced when compared to diesel.

Studies on Influence of Injection Timing and Diesel Replacement on LPG-Diesel Dual-Fuel Engine

2003 ◽  
Author(s):  
C. V. Sudhir ◽  
Vijay Desai ◽  
Y. Suresh Kumar ◽  
P. Mohanan
Keyword(s):  
Energy Consumption ◽  
Diesel Engine ◽  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Dual Fuel ◽  
Injection Timing ◽  
Brake Thermal Efficiency ◽  
Full Load ◽  
Smoke Density ◽  
Diesel Operation

Reducing the emissions and fuel consumption for IC engines are no longer the future goals; instead they are the demands of today. People are concerned about rising fuel costs and effects of emissions on the environment. The major contributor for the increased levels of pollutants is the Diesel engines. Diesel engine finds application in almost in all fields, including transportation sector such as buses, trucks, railway engines, etc. and in industries as power generating units. In the present work an attempt is made for effective utilization of diesel engine aiming for reduction in fuel consumption and smoke density. This is achieved by some minor modifications in diesel engine, so as to run the existing diesel engine as a LPG-Diesel dual-fuel engine with LPG (Liquefied Petroleum Gas) induction at air intake. The important aspect of LPG-Diesel dual-fuel engine is that it shows significant reduction in smoke density and improved brake thermal efficiency with reduced energy consumption. An existing 4-S, single cylinder, naturally aspirated, water-cooled, direct injection, CI engine test rig was used for the experimental purpose. With proper instrumentation the tests were conducted under various LPG flow rates, loads, and injection timings. The influence of the diesel replacement by LPG on smoke density, brake specific energy consumption and brake thermal efficiency were studied. The optimal diesel replacement pertaining to the maximum allowable LPG gas flow limits could be assessed with these experiments. The influence of the injection timing variation on the engine performance and smoke density were analyzed form the experimental results. It was also observed that beyond half load operation of the dual-fuel engine, the brake thermal efficiency increases with diesel replacement, and at full load up to 4% improvement was observed compared to full diesel operation. At full load reduction in smoke density up to 25–36% was observed compared to full diesel operation. At advance injection timing of 30°btdc the performance was better with lower emissions compared to normal and retarded injection timings.

Effects of Substitution Ratio on the Emission Characteristics of a Dual-Fuel Engine Fueled with Pilot Diesel Fuel and Methanol

2015 ◽  
Vol 1092-1093 ◽  
pp. 504-507
Author(s):  
Ya Chong Shen ◽  
Chun Hua Zhang ◽  
Gang Li ◽  
Jia Wang Zhou
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Experimental Results ◽  
Constant Speed ◽  
Dual Fuel ◽  
Emission Characteristics ◽  
Turbocharged Diesel Engine ◽  
Intake Pipe ◽  
Substitution Ratio ◽  
Hc Emissions

Substitution ratio is an important parameter influencing on the performance of dual-fuel engine. In order to study the effects of substitution ratio on the emission characteristics of diesel/ methanol dual-fuel engine, a 6-cylinder turbocharged diesel engine was converted into a dual-fuel engine fueled with pilot diesel fuel and methanol. Methanol was injected into the intake pipe and ignited by pilot diesel fuel. Experiments were performed at a constant speed of 1400 r/min, and at three different engine loads of 40%, 60% and 100%. The experimental results indicate that CO and HC emissions of dual-fuel mode both increase significantly with the increase of substitution ratio, and are higher than those of diesel mode. Compared to diesel mode, dual-fuel mode generates lower NOx and smoke emissions. In addition, as substitution ratio increases, NOx and smoke emissions are decreased.

IDI Engine With Alternate Fuels

2021 ◽  
pp. 25-53 ◽  
Author(s):  
Venkata Appa Rao Basava ◽  
Aditya Kolakoti ◽  
Prasada Rao Kancherla
Keyword(s):  
Rice Bran ◽  
Beef Tallow ◽  
Methyl Esters ◽  
Single Cylinder Engine ◽  
Waste Cooking Oils ◽  
Engine Cylinder ◽  
Cooking Oils ◽  
Pressure Changes ◽  
Alternate Fuels ◽  
Speed Engine

A plethora of experiments were conducted on IDI engine with various biodiesels (e.g., methyl esters of mahua, jatropha, rice bran, pongamia, palm, beef tallow, and waste cooking oils). Review of the results of these endeavors with various additives and blends with or without super charging of the engine are presented in this chapter. All these attempts have been concentrated to arrive at the best yield from a single cylinder engine. The recorded pressure changes during combustion, the derived heat release rates, and exhaust emissions are presented in the form of plots at various loads and at a constant speed. Engine cylinder vibrations (reflect combustion excitation) in the form of FFT and time waves were recorded at radial points and vertical on the cylinder body to assess the combustion propensity in all cases of studies. The results with relative benefits are enumerated.

Sign in / Sign up

Export Citation Format

Share Document