scholarly journals Performance and emission characteristics of biogas-bio diesel fuelled RCCI engine at various butanol-gasoline injection timings

2021 ◽  
Vol 850 (1) ◽  
pp. 012001
Author(s):  
P Bhuvanashankar ◽  
S B Bindu ◽  
Mohammed Musthafa Feroskhan ◽  
B Nova Hamsadhwan ◽  
V Krishna Ganesh ◽  
...  
Keyword(s):  
Fossil Fuels ◽  
Human Life ◽  
Research Work ◽  
Emission Characteristics ◽  
Ic Engine ◽  
Reactivity Controlled Compression Ignition ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Pilot Fuel ◽  
Technological Developments

Abstract Energy, a basic need of human life, has been playing significant role behind many technological developments. Most of the world’s commercial energy requirements are fulfilled by using fossil fuels. Combustion of fossil fuels releases toxic gases which in further turns as a source of pollution for the environment, globally. The present research work focused on minimizing the emissions that emerges during combustion in an IC engine through Reactivity Controlled Compression Ignition (RCCI) mode. The performance and emission characteristics of a single-cylinder CI engine are analyzed with 3 different fuels; biodiesel, butanol-gasoline (1:4 ratio), and biogas. The operational loads taken for the present study falls in the range from 5 N-m to 20 N-m at the engine speed of 1800 RPM. The influence of biogas on the emission characteristics is exclusively carried out with two different flow rates; 12lpm and 16lpm. The injection timings for butanol-gasoline blend are varied from 0 to 8ms. Fuel properties such as Viscosity, Vapor pressure, Density, Cloud point, Pour point, and Flashpoint are estimated. Engine parameters such as Brake Thermal Efficiency (BTE), Volumetric Efficiency (VE), HC, CO, NOx and smoke emissions, Peak pressure, Heat Release Rate (HRR), Ignition Delay, are analyzed. It is observed from the experiments that increasing injection time of pilot fuel - increases the HC and CO emissions; reduces the NOx emissions; decreases the smoke level with increase in biogas flow rate; and decreases the BTE, VE, and HRR

scholarly journals Research on Performance And Emission on Compression Ignition Engine Fuelled With Blends of Neem Bio-Diesel

2019 ◽  
Vol 8 (6) ◽  
pp. 3732-3735
Keyword(s):  
Diesel Engine ◽  
Vegetable Oils ◽  
Castor Oil ◽  
Fossil Fuels ◽  
Emission Characteristics ◽  
Nox Emissions ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Brake Thermal Efficiency ◽  
Performance And Emission

In this contemporary era it is mandatory to increasing the usage of non edible biodiesel to replace the fossil fuels. This non edible biodiesels are produced from vegetable oils which is clean burning and renewable. This paper deals with the performance and emission characteristics on diesel engine with blends of Castor oil as biodiesel. Castor oil biodiesel is prepared by the use of adding 1% v/v H2SO4 after the transesterification process. The engine tests were performed with various blends B20, B40, B60 on a single cylinder, 4-stroke, diesel engine. The result shows Higher performance and lower emissions for B20 than the diesel and other blends. The brake thermal efficiency is higher than the diesel and CO, HC and NOX emissions were 22%, 8.4%, and 21% lesser than that of diesel.

Performance, combustion and exhaust emissions analysis of HCNG fuelled single cylinder diesel engine at different injection opening pressures

2018 ◽  
Vol 15 (6) ◽  
pp. 710-718
Author(s):  
Syed Azam Pasha Quadri ◽  
Girish Srivatsa Rentala ◽  
Raghavendra Sarap
Keyword(s):  
Natural Gas ◽  
Fossil Fuels ◽  
Load Condition ◽  
Emission Characteristics ◽  
Operating Pressure ◽  
Transportation Fuel ◽  
Compressed Natural Gas ◽  
Brake Thermal Efficiency ◽  
Content Type ◽  
Performance And Emission

Purpose Over past decades, the fossil fuel reserves in the world have been decreasing at an alarming rate and a lack of crude oil is expected in the early decades of this century. Also, the eco-neutral pollutants such as carbon monoxide (CO), oxides of nitrigen (NOx) and unburnt hydrocarbons (UHC) are also increasing. This calls for innovative research in non-conventional fuels to replace fossil fuels. Hydrogen is one such fuel which has an exceptional combustion property and appears to be proving itself as the best transportation fuel of the future. On the other hand, compressed natural gas(CNG) has already been credited as a remarkable fuel for its better emission characteristics and has been implemented as a transportation fuel in metros. Therefore, the use of hydrogen blended with natural gas seems to be a viable alternative to pure fossil fuels because of the expected reduction of the total pollutants and increase of efficiency. This paper aims to investigate this issue. Design/methodology/approach In the present experimental investigation, 10 and 20 per cent of hydrogen–CNG mixture(HCNG) by mass of fuel is inducted into the combustion chamber in conjunction with air in HCNG–diesel dual fuel mode. The variation in injection opening pressure is assessed to optimize the performance and emission characteristics. Findings Experiments were conducted at three different injection opening pressures, i.e. 200, 220 and 240 bar, at full-load condition and the performance characteristics were calculated. The effect of injection operating pressure(IOP) on emissions were measured and compared with pure diesel mode. Originality/value Brake thermal efficiency (BTE) was increased by 1.2 per cent at 220 bar. Minimum BSFC of 0.2302 kg/kWh, 0.2114 kg/kWh was noticed for 220 bar with a changing ratio of 20 per cent of HCNG. It was noticed that CO and UHC decreased with variation in IOP and HCNG content in the blend. However, there was an increase in NOx emissions.

scholarly journals Experimental Investigation of Spirulina Microalgae Biodiesel with Metal Nanoadditive on Single-Cylinder Diesel Engine

2022 ◽  
Vol 2022 ◽  
pp. 1-7
Author(s):  
J. Arunprasad ◽  
Arif Senol Sener ◽  
R. Thirugnanasambantham ◽  
T. Elango ◽  
T. Bothichandar
Keyword(s):  
Experimental Investigation ◽  
Diesel Engine ◽  
Research Work ◽  
Oxide Nanoparticles ◽  
Emission Characteristics ◽  
Brake Thermal Efficiency ◽  
Mgo Nanoparticles ◽  
Performance And Emission ◽  
Magnesium Oxide Nanoparticles ◽  
Biodiesel Blend

Nanoparticles are an emerging concept for increasing fuel properties. The purpose of this research work is to determine the effect of magnesium oxide nanoparticles on the performance and emission characteristics of diesel engines that run on a spirulina microalgae biodiesel blend (B20) as a fuel. The ultrasonication was used to disperse MgO nanoparticles in B20 fuel at various concentrations (25, 50, 75, and 100 ppm). The significant findings indicated that B20+100 blends reduced specific fuel consumption by 20.1% and had a 5.09% higher brake thermal efficiency than B20. B20+100 blends reduced CO, hydrocarbon, and smoke emissions by a maximum of 32.02%, 30.03%, and 26.07%, respectively, compared to B20.

scholarly journals Emission Characteristics of Methyl Ester of Rice Bran Oil Blends with Ethanol in CI Engine

2020 ◽  
pp. 1-7
Author(s):  
Rajat Kumar Sharma ◽  
Jayant Singh ◽  
Ankit Negi ◽  
Deepshikha Azad
Keyword(s):  
Rice Bran ◽  
Fossil Fuels ◽  
Rice Bran Oil ◽  
Direct Injection ◽  
Emission Characteristics ◽  
Soot Concentration ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Oil Blends ◽  
Increasing Demand

Increasing demand and rapid depletion of fossil fuels have together prompted the researchers of many countries to look for alternate renewable fuels. This study is an attempt to test the feasibility of rice bran oil as fuel in C. I. engine in its original and in its refined form. It is generally produced from rice bran which is a by-product produced during paddy processing. Its viscosity though relatively higher than diesel can be reduced by natural sedimentation process. In this attempt, the performance and emission characteristics of rice bran oil and its refined form were studied and compared with diesel by employing them as a fuel in a single cylinder, direct injection, 4.4 KW, air cooled diesel engine. The performance characteristics revealed that the brake thermal efficiency of the rice bran oil was higher than its refined form and were marginally lower than that of diesel. Emission measurements were carried out using MRU Delta 1600L gas analyzer and the soot concentration was measured with AVL smoke meter. It was found that though blends of rice bran oil with ethanolexhibited greater soot concentration characteristics than rice bran oil and diesel at all loads, it exhibited desirable characteristics for other emissions such as lower CO, HC, NOx emissions and lower exhaust gas temperatures with increasing load.

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 and Emission Characteristics of Dual Biofuel (CNSL and Rice Bran Oil) Blended with Diesel in CI Engine

2019 ◽  
Vol 8 (6S3) ◽  
pp. 2120-2122
Keyword(s):  
Rice Bran ◽  
Rice Bran Oil ◽  
Research Work ◽  
Emission Characteristics ◽  
Performance And Emission ◽  
Alternate Fuel ◽  
Cashew Nutshell Liquid ◽  
Recent Trends ◽  
Ci Engine ◽  
Different Characteristics

In recent trends due to the increase in rate of petrol and diesel prices biodiesel has been used as an alternate fuel in many of the fast developing countries. However in our country also many research work has been done using different oils. In this paper instead of using a single oil, two different oils was mixed with diesel in different blends and the emissions were calculated and the results were plotted. The two different oils used was the Cashew nutshell liquid (CNSL) and the Rice bran oil. Cashew oil is found to be a by-product which is available from the Cashew industry and after the transesterification process the cardanol obtained was used without any modifications. Rice bran oil is mostly found in the places where rice is grown in a huge quantity and more number of research works has not been done in this oil. By the transesterification process the rice bran oil was prepared and mixed with the CNSL in the different proportions, which was also mixed with diesel in some amounts and the different characteristics were evaluated and plotted.

scholarly journals Effect of Waste Heat Recovery System on Performance and Emission Characteristics of Spark Ignition (SI) Engine Fuelled with Neat Ethanol (E100)

2021 ◽  
Vol 9 (2) ◽  
pp. 32-36
Keyword(s):  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Emission Characteristics ◽  
Si Engine ◽  
Ethanol Fuel ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Waste Heat Recovery System ◽  
Recovery System

TheSI engine could not be operatedefficientlywith neat ethanol fuel due to its high selfignition temperature and latent heat of vaporizationcompared with petrol.The above issues of SI engine is turned to be an objective of this study, where the SI engine was operated with neat ethanol fuel under different inlet air temperatures.The result of this study is indicated that the neat ethanol fuel could be utilized efficiently in SI engine with waste heat recovery system.The specific fuel consumption (SFC) of SI engine has decreased with neat ethanol fuel compared with petrol fuelled engine. It is also found that theSI engine has registered almost same brake thermal efficiency (BTE) values with neat ethanol compared to petrol.The exhaust emissions such as carbon monoxide (CO) and Hydrocarbon (HC)were reduced in SI engine, at the same time there was an increase in oxide of nitrogen (NOx).

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