COMBUSTION PERFORMANCE OF JATROPHA BIODIESEL IN AN OIL BURNER SYSTEM

2015 ◽  
Vol 77 (8) ◽  
Author(s):  
Arizal, M. A. A ◽  
Azman, A. H. ◽  
Jaafar, M. N. M. ◽  
Wan Omar, W. Z.
Keyword(s):  
Nitrous Oxide ◽  
Alternative Energy ◽  
Temperature Profiles ◽  
Gaseous Emissions ◽  
Jatropha Oil ◽  
Acid Base ◽  
Edible Plant ◽  
Combustion Performance ◽  
Combustion Properties ◽  
Conventional Diesel Fuel

Jatropha Curcas is a non-edible plant that can be used for renewable or alternative energy. The seeds of Jatropha contain up to 60 percent oil. The oil can be converted into biodiesel by well-known two-step using acid-base catalytic transesterification. This paper shows the combustion performance of biodiesel derived from Jatropha oil in an oil burner designed for conventional diesel. Biodiesel used in this study is a blend of diesel with Jatropha Methyl Ester (JME) and combustion performance was measured and compared with that of conventional diesel fuel (CDF). The combustion performance of Jatropha biodiesel is based on wall temperature profiles and the amount of gaseous emissions emitted such as nitrous oxide (NOx), sulphur dioxide (SO2) and carbon monoxide (CO). It was demonstrated that biodiesel derived from Jatropha is comparable to the combustion properties of CDF and has high potential to be used as alternative fuel for diesel machines.

PRESTASI PEMBAKARAN MINYAK JATROPHA SEBAGAI BAHAN API CECAIR BIODIESEL PADA SISTEM PEMBAKAR BERBAHAN API CECAIR

2017 ◽  
Vol 79 (6) ◽  
Author(s):  
Muhammad Roslan Rahim ◽  
Mustafa Yusof ◽  
Aidil Hafiz Azman ◽  
Mohammad Nazri Mohd Jaafar
Keyword(s):  
Diesel Engine ◽  
Industrial Development ◽  
Acid Base ◽  
Plant Oil ◽  
Edible Plant ◽  
Animal Fats ◽  
Heat Engines ◽  
Engine Combustion ◽  
Alternative Sources ◽  
Day By Day

The world is passing through a phase of sustainable modernization and industrial development day by day. As a result, there is an increasing number of vehicles used and heat engines demands in the market. However, energy sources used in these engines are limited and decreasing gradually. This situation leads to evolution of alternative sources to viable fuel for diesel engine. Biodiesel is seen as an alternative fuel for diesel engine combustion.  The esters of vegetable or plant oil and animal fats are known as biodiesel. This article investigates the prospect of producing biodiesel from Jatropha oil. Jatropha curcas oil is a renewable non-edible plant. The seeds of Jatropha contain 50-60% oil. In this study, the oil has been converted to biodiesel by a well-known two-step, acid-base catalytic transesterification and used in diesel burner for performance evaluation. Biodiesel used in this study is a blend of diesel and Jatropha biodiesel. The performance of burner system using Jatropha biodiesel is based on its temperature profile and emissions generated such as nitrous oxide (NOx), sulphur dioxide (SO2) and carbon monoxide (CO).  A reduction of 50% was achieved for both CO dan SO2 when burning Jatropha biodiesel compared to burning diesel.

Potential of Industrial Solid Wastes as an Energy Source and Gaseous Emissions Evaluation in a Pilot Scale Burner

2008 ◽  
Author(s):  
Silvia L. Floriani ◽  
Elaine Virmond ◽  
Christine Albrecht Althoff ◽  
Regina F. P. M. Moreira ◽  
Humberto J. Jose´
Keyword(s):  
Energy Source ◽  
Alternative Energy ◽  
Chemical Properties ◽  
Pilot Scale ◽  
Volatile Matter ◽  
Industrial Wastes ◽  
Gaseous Emissions ◽  
Gas Treatment ◽  
Combustion Tests ◽  
Lower Heating

Biomass is currently used as an alternative energy source in some industries. Due to problems with disposal of wastes, using biomass as an energy source is economically and environmentally attractive. In this work seven wastes from textile and food industry were characterized and their gaseous emissions resulting from their combustion in a pilot unit were measured. The aim of this paper is to evaluate the usage of industrial wastes as an energy source taking into account their composition and gaseous emissions when submitted to combustion tests. Gaseous emissions were compared to limits imposed by Brazilian and international current legislations. Volatile organic compounds (VOC) were analyzed by GC-MS and their content values were expressed as total organic carbon (TOC). Four combustion tests were carried out in a cyclone combustor and all TOC emissions were below regulations limits. CO, CO2, NOx, CxHy and SO2 were also measured. Chemical properties showed that the volatile matter values of all biomass were high what indicate that the solids burn rapidly and some biomass presented high levels of sulphur and consequently high levels of emission of SO2 when burned. The lower heating values ranged from 14.22 to 22.93 MJ.kg−1. Moisture content and particulate matter (PM) were measured during the combustion tests and showed effective combustion conditions. Thermogravimetric analysis of the biomasses showed ignition temperatures and maximum burning rate which were compared to other papers data. The usage of these biomasses as an energy source is possible however gas treatment would be required specially if the solid presents high levels of sulphur and chlorine.

Investigations on Low Heat Rejection Diesel Engine With Crude Jatropha Oil as an Alternate Fuel

2002 ◽  
Author(s):  
M. V. S. Murali Krishna ◽  
C. M. Vara Prasad ◽  
Tandur Rajashekar ◽  
Supriya Tiwari ◽  
T. Sujani
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Injection Pressure ◽  
High Viscosity ◽  
Injection Timing ◽  
Jatropha Oil ◽  
Heat Rejection ◽  
Reduction Of Nox ◽  
Conventional Diesel Fuel ◽  
Diesel Operation

Jatropha oil, a non-edible vegetable oil shows a greater potential for replacing conventional diesel fuel quite effectively, as its properties are compatible to that of diesel fuel. But low volatility and high viscosity of jatropha oil call for hot combustion chamber, which is provided by a low heat rejection diesel engine with threaded air gap piston and liner with superni-90 inserts. The performance of the engine with jatropha oil is obtained with different versions of the engine such as conventional engine and insulated engine at normal and preheat condition of the oil, with varying injection pressure and timing and compared to the engine with pure diesel operation at recommended injection pressure and timing. Increase of thermal efficiency of 18% and reduction of NOx levels by 5% are observed at optimized injection timing and at higher injection pressure with insulated engine at preheat condition of jatropha oil in comparison with pure diesel operation on conventional engine.

scholarly journals COMBUSTION PERFORMANCE OF SYNGAS FROM PALM KERNEL SHELL IN A GAS BURNER

2019 ◽  
Vol 81 (6) ◽  
Author(s):  
Asmadib Yusoff @ Adnan ◽  
Muhammad Roslan Rahim ◽  
Mohammad Nazri Mohd. Jaafar ◽  
Norazila Othman ◽  
Mohd Shuisma Mohd Ismail ◽  
...  
Keyword(s):  
Alternative Energy ◽  
Energy Content ◽  
Palm Kernel ◽  
High Energy ◽  
Flame Length ◽  
Palm Kernel Shell ◽  
Downdraft Gasifier ◽  
Combustion Performance ◽  
Rich Condition ◽  
Gas Burner

Insufficient and various environmental issues of fossil fuels as the current world dominated energy is now becoming a serious global issue. The rapidly increasing demand for alternative energy sources has contributed to the steady growth of renewable energy. Owing to the fact of the abundant presence of palm kernel shell (PKS) as one of palm biomass wastes in South East Asia region, this paper investigates syngas produced from gasified PKS. The investigation is regarding its composition and combustion performance in a gas burner system. It covers emissions analysis, temperature profile and flame length. The produced syngas from downdraft gasifier was burned in the combustion chamber in air-rich and fuel-rich combustion conditions.  From the experiment, the results showed that the oxidation zone temperature of above 750°C for the downdraft gasifier is suitable for producing syngas. Produced syngas can be classified as pure-carbon monoxide (CO) syngas due to 94.9% CO content with no hydrogen (H2) content and low heating value (LHV) of 10.7 MJ/kg. The wall temperature profiles for burnt syngas produced via downdraft gasification was higher with longer pattern at fuel-rich condition, which signified higher energy of syngas produced from downdraft gasifier compared to fluidised bed gasifier.  The associated flame length was also longer at fuel-rich condition. Produced emission of 56 ppm NOX, 37 ppm CO and 1 ppm SO2 can still be considered as acceptable to human.  It can be concluded that syngas produced from PKS shown a high potential to serve as an alternative source of energy due to its high energy content.

scholarly journals Simulasi co-combustion batubara dan biomassa tandan kosong kelapa sawit tertorefaksi (torrefied biomass)

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Zaenal Arifin ◽  
Amrul Amrul ◽  
Muhammad Irsyad
Keyword(s):  
Co2 Emissions ◽  
Alternative Energy ◽  
Bituminous Coal ◽  
Fossil Fuel ◽  
Calorific Value ◽  
Maximum Temperature ◽  
Combustion Properties ◽  
Combustion Simulation ◽  
Nozzle Temperature ◽  
Pulverized Combustion

Coal is still widely used as the main fuel in the industry, especially the power generation industry (PLTU), cement plants and etc. Coal is a fossil fuel whose availability is thinning and its fires produce CO2 emissions that cause a rise in greenhouse gas (GHG) concentricity. On the other biomass is an alternative energy source that is abundant, including empty bunches of oil palm (TKKS), but has poor combustion properties compared to coal when burned directly. The properties of biomass burning can be improved by certain treatment, one of which is through the process of torrefaction. Biomass torrefaction has a calorific value equivalent to sub-bituminous coal B, so it has the potential to be used as an alternative fuel for coal. The purpose of this study was to determine the maximum temperature that occurs in the burner. In this study co-combustion was conducted on simulation of ANSYS program with powder system (pulverized combustion) because this type in recent decades is widely used in industry. In this study conducted a simulation on ANSYS to determine the temperature on the burner and the concentration of emissions produced. The results showed that the simulation of co-combustion burner burner showed the maximum temperature reached 970°C.  The effect of burner and burner temperature in the form of swirl provides sufficient oxygen with more perfect combustion resulting in decreased concentration of CO2 emissions and low concentration of N2 due to higher nozzle temperature. High temperatures lower the concentration of SO2 in the burn chamber.Keyword: Co-combustion, pulverized co-combustion simulation, TKKS torrefaction, burner.

scholarly journals A diesel engine performance measurement with diesel fuel and biodiesel

2019 ◽  
Vol 23 (Suppl. 5) ◽  
pp. 1779-1788
Author(s):  
Radivoje Pesic ◽  
Aleksnadar Davinic
Keyword(s):  
Energy Consumption ◽  
Diesel Engine ◽  
Diesel Fuel ◽  
Alternative Energy ◽  
Engine Performance ◽  
Energy Resources ◽  
Biodiesel Fuel ◽  
European Stationary Cycle ◽  
Alternative Energy Resources ◽  
Conventional Diesel Fuel

Rapid growth in the energy consumption has conditioned the need for discovering the alternative energy resources which would be adapted to the existing engine constructions and which would satisfy the additional criteria related to the renewability, ecology, and reliability of use. The experimental research are conducted according to the (European Stationary Cycle - Directive 1999/96/EC) 13-mode. Using biodiesel fuel average thermal efficiency is kept at the level of the application of conventional diesel fuel, average emission of CO is reduced by 13.6%, average emission of NO is increased by x 27.6%, average emission of hydrocarbon is increased by 59.4%, and average particles emission is reduced by 43.2%.

Combustion Properties of Partially-Premixed Turbulent Flames of Soy Methyl Ester and Diesel Blends

2010 ◽  
Author(s):  
Nikhil S. Dhamale ◽  
Ramkumar N. Parthasarathy ◽  
Subramanyam R. Gollahalli
Keyword(s):  
Reynolds Number ◽  
Methyl Ester ◽  
Alternative Energy ◽  
Turbulent Flame ◽  
Energy Resource ◽  
Turbulent Flames ◽  
Flame Height ◽  
Combustion Properties ◽  
Partially Premixed ◽  
Soy Methyl Ester

Soy methyl ester (SME) is a biofuel that is a renewable alternative energy resource and is produced by the transesterification of soy oil; it is carbon-neutral and low in sulphur content. The objective of this study was to document the combustion characteristics of blends of SME and No 2 diesel fuel in a partially-premixed turbulent flame environment. The experiments were conducted at an initial equivalence ratio of 7 and three Reynolds numbers (based on the injector diameter and the bulk burner-exit velocity of the air/fuel mixture): 2700, 3600 and 4500. Three blends, B25, B50 and B75 corresponding to 25, 50 and 75% volume concentration of SME were studied. The liquid fuel was completely vaporized and mixed with air before exiting the burner. The radiative heat fraction measured in the SME flames was lower than the corresponding value in pure diesel flames and increased with Reynolds number. The global emission measurements indicated that the NOx emissions from the SME-diesel blend flames were lower than those from the pure diesel flame. At quarter and half flame height the temperature peaked at the edge of the flame where as for three quarters the temperature peaked at the centerline of the flame. In-flame NOx concentrations decreased with an increase in Reynolds number. The CO emission index decreased with the increase in the SME concentration in the fuel blend and decreased with the increase in Reynolds number.

Study of Performance and Emission Characteristics of C.I Engine fuelled with Hybrid Biodiesel

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Veerbhadrappa a, b, Telgane ◽  
Sharanappa Godiganur ◽  
N. Keerthi kumar ◽  
T.K. Chandrashekar
Keyword(s):  
Methyl Ester ◽  
Diesel Fuel ◽  
Methyl Esters ◽  
Calorific Value ◽  
Emission Characteristics ◽  
Jatropha Oil ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Di Diesel Engine ◽  
Conventional Diesel Fuel

In the present experimental investigation, the performance and emission characteristics of four stroke single cylinder water-cooled DI diesel engine using dual hybrid biodiesel is evaluated. Dual hybrid biodiesel produced from Simarouba Oil Methyl Ester (SuOME) and Jatropha Oil Methyl Ester (JOME) is used as a fuel to run the engine. Both the methyl esters are mixed in equal % and blended with diesel (B20 to B100). The fuel properties such as kinematic viscosity, calorific value, flash point, carbon residue and specific gravity were found for the prepared biodiesel. The results showed that B20 has almost closer brake thermal efficiency compared to that of the conventional diesel fuel. Except NOx, B100 has recorded very less emission of CO, CO2 and HC compared to that of diesel fuel.

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