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R. S. Hosmath - One of the best experts on this subject based on the ideXlab platform.

  • performance and emission characteristics of a di compression ignition engine operated on honge jatropha and Sesame Oil methyl esters
    Renewable Energy, 2008
    Co-Authors: Nagaraj R. Banapurmath, P. G. Tewari, R. S. Hosmath
    Abstract:

    The high viscosity of vegetable Oils leads to problem in pumping and spray characteristics. The inefficient mixing of vegetable Oils with air contributes to incomplete combustion. The best way to use vegetable Oils as fuel in compression ignition (CI) engines is to convert it into biodiesel. Biodiesel is a methyl or ethyl ester of fatty acids made from vegetable Oils (both edible and non-edible) and animal fat. The main resources for biodiesel production can be non-edible Oils obtained from plant species such as Pongamia pinnata (Honge Oil), Jatropha curcas (Ratanjyot), Hevea brasiliensis (Rubber) and Calophyllum inophyllum (Nagchampa). Biodiesel can be used in its pure form or can be blended with diesel to form different blends. It can be used in CI engines with very little or no engine modifications. This is because it has properties similar to mineral diesel. This paper presents the results of investigations carried out on a single-cylinder, four-stroke, direct-injection, CI engine operated with methyl esters of Honge Oil, Jatropha Oil and Sesame Oil. Comparative measures of brake thermal efficiency, smoke opacity, HC, CO, NOX, ignition delay, combustion duration and heat release rates have been presented and discussed. Engine performance in terms of higher brake thermal efficiency and lower emissions (HC, CO, NOX) with Sesame Oil methyl ester operation was observed compared to methyl esters of Honge and Jatropha Oil operation.

  • Performance and emission characteristics of a DI compression ignition engine operated on Honge, Jatropha and Sesame Oil methyl esters
    Renewable Energy, 2008
    Co-Authors: Nagaraj R. Banapurmath, P. G. Tewari, R. S. Hosmath
    Abstract:

    The high viscosity of vegetable Oils leads to problem in pumping and spray characteristics. The inefficient mixing of vegetable Oils with air contributes to incomplete combustion. The best way to use vegetable Oils as fuel in compression ignition (CI) engines is to convert it into biodiesel. Biodiesel is a methyl or ethyl ester of fatty acids made from vegetable Oils (both edible and non-edible) and animal fat. The main resources for biodiesel production can be non-edible Oils obtained from plant species such as Pongamia pinnata (Honge Oil), Jatropha curcas (Ratanjyot), Hevea brasiliensis (Rubber) and Calophyllum inophyllum (Nagchampa). Biodiesel can be used in its pure form or can be blended with diesel to form different blends. It can be used in CI engines with very little or no engine modifications. This is because it has properties similar to mineral diesel. This paper presents the results of investigations carried out on a single-cylinder, four-stroke, direct-injection, CI engine operated with methyl esters of Honge Oil, Jatropha Oil and Sesame Oil. Comparative measures of brake thermal efficiency, smoke opacity, HC, CO, NOX, ignition delay, combustion duration and heat release rates have been presented and discussed. Engine performance in terms of higher brake thermal efficiency and lower emissions (HC, CO, NOX) with Sesame Oil methyl ester operation was observed compared to methyl esters of Honge and Jatropha Oil operation. © 2007 Elsevier Ltd. All rights reserved.

Nagaraj R. Banapurmath - One of the best experts on this subject based on the ideXlab platform.

  • performance and emission characteristics of a di compression ignition engine operated on honge jatropha and Sesame Oil methyl esters
    Renewable Energy, 2008
    Co-Authors: Nagaraj R. Banapurmath, P. G. Tewari, R. S. Hosmath
    Abstract:

    The high viscosity of vegetable Oils leads to problem in pumping and spray characteristics. The inefficient mixing of vegetable Oils with air contributes to incomplete combustion. The best way to use vegetable Oils as fuel in compression ignition (CI) engines is to convert it into biodiesel. Biodiesel is a methyl or ethyl ester of fatty acids made from vegetable Oils (both edible and non-edible) and animal fat. The main resources for biodiesel production can be non-edible Oils obtained from plant species such as Pongamia pinnata (Honge Oil), Jatropha curcas (Ratanjyot), Hevea brasiliensis (Rubber) and Calophyllum inophyllum (Nagchampa). Biodiesel can be used in its pure form or can be blended with diesel to form different blends. It can be used in CI engines with very little or no engine modifications. This is because it has properties similar to mineral diesel. This paper presents the results of investigations carried out on a single-cylinder, four-stroke, direct-injection, CI engine operated with methyl esters of Honge Oil, Jatropha Oil and Sesame Oil. Comparative measures of brake thermal efficiency, smoke opacity, HC, CO, NOX, ignition delay, combustion duration and heat release rates have been presented and discussed. Engine performance in terms of higher brake thermal efficiency and lower emissions (HC, CO, NOX) with Sesame Oil methyl ester operation was observed compared to methyl esters of Honge and Jatropha Oil operation.

  • Performance and emission characteristics of a DI compression ignition engine operated on Honge, Jatropha and Sesame Oil methyl esters
    Renewable Energy, 2008
    Co-Authors: Nagaraj R. Banapurmath, P. G. Tewari, R. S. Hosmath
    Abstract:

    The high viscosity of vegetable Oils leads to problem in pumping and spray characteristics. The inefficient mixing of vegetable Oils with air contributes to incomplete combustion. The best way to use vegetable Oils as fuel in compression ignition (CI) engines is to convert it into biodiesel. Biodiesel is a methyl or ethyl ester of fatty acids made from vegetable Oils (both edible and non-edible) and animal fat. The main resources for biodiesel production can be non-edible Oils obtained from plant species such as Pongamia pinnata (Honge Oil), Jatropha curcas (Ratanjyot), Hevea brasiliensis (Rubber) and Calophyllum inophyllum (Nagchampa). Biodiesel can be used in its pure form or can be blended with diesel to form different blends. It can be used in CI engines with very little or no engine modifications. This is because it has properties similar to mineral diesel. This paper presents the results of investigations carried out on a single-cylinder, four-stroke, direct-injection, CI engine operated with methyl esters of Honge Oil, Jatropha Oil and Sesame Oil. Comparative measures of brake thermal efficiency, smoke opacity, HC, CO, NOX, ignition delay, combustion duration and heat release rates have been presented and discussed. Engine performance in terms of higher brake thermal efficiency and lower emissions (HC, CO, NOX) with Sesame Oil methyl ester operation was observed compared to methyl esters of Honge and Jatropha Oil operation. © 2007 Elsevier Ltd. All rights reserved.

P. G. Tewari - One of the best experts on this subject based on the ideXlab platform.

  • performance and emission characteristics of a di compression ignition engine operated on honge jatropha and Sesame Oil methyl esters
    Renewable Energy, 2008
    Co-Authors: Nagaraj R. Banapurmath, P. G. Tewari, R. S. Hosmath
    Abstract:

    The high viscosity of vegetable Oils leads to problem in pumping and spray characteristics. The inefficient mixing of vegetable Oils with air contributes to incomplete combustion. The best way to use vegetable Oils as fuel in compression ignition (CI) engines is to convert it into biodiesel. Biodiesel is a methyl or ethyl ester of fatty acids made from vegetable Oils (both edible and non-edible) and animal fat. The main resources for biodiesel production can be non-edible Oils obtained from plant species such as Pongamia pinnata (Honge Oil), Jatropha curcas (Ratanjyot), Hevea brasiliensis (Rubber) and Calophyllum inophyllum (Nagchampa). Biodiesel can be used in its pure form or can be blended with diesel to form different blends. It can be used in CI engines with very little or no engine modifications. This is because it has properties similar to mineral diesel. This paper presents the results of investigations carried out on a single-cylinder, four-stroke, direct-injection, CI engine operated with methyl esters of Honge Oil, Jatropha Oil and Sesame Oil. Comparative measures of brake thermal efficiency, smoke opacity, HC, CO, NOX, ignition delay, combustion duration and heat release rates have been presented and discussed. Engine performance in terms of higher brake thermal efficiency and lower emissions (HC, CO, NOX) with Sesame Oil methyl ester operation was observed compared to methyl esters of Honge and Jatropha Oil operation.

  • Performance and emission characteristics of a DI compression ignition engine operated on Honge, Jatropha and Sesame Oil methyl esters
    Renewable Energy, 2008
    Co-Authors: Nagaraj R. Banapurmath, P. G. Tewari, R. S. Hosmath
    Abstract:

    The high viscosity of vegetable Oils leads to problem in pumping and spray characteristics. The inefficient mixing of vegetable Oils with air contributes to incomplete combustion. The best way to use vegetable Oils as fuel in compression ignition (CI) engines is to convert it into biodiesel. Biodiesel is a methyl or ethyl ester of fatty acids made from vegetable Oils (both edible and non-edible) and animal fat. The main resources for biodiesel production can be non-edible Oils obtained from plant species such as Pongamia pinnata (Honge Oil), Jatropha curcas (Ratanjyot), Hevea brasiliensis (Rubber) and Calophyllum inophyllum (Nagchampa). Biodiesel can be used in its pure form or can be blended with diesel to form different blends. It can be used in CI engines with very little or no engine modifications. This is because it has properties similar to mineral diesel. This paper presents the results of investigations carried out on a single-cylinder, four-stroke, direct-injection, CI engine operated with methyl esters of Honge Oil, Jatropha Oil and Sesame Oil. Comparative measures of brake thermal efficiency, smoke opacity, HC, CO, NOX, ignition delay, combustion duration and heat release rates have been presented and discussed. Engine performance in terms of higher brake thermal efficiency and lower emissions (HC, CO, NOX) with Sesame Oil methyl ester operation was observed compared to methyl esters of Honge and Jatropha Oil operation. © 2007 Elsevier Ltd. All rights reserved.

Eunok Choe - One of the best experts on this subject based on the ideXlab platform.

  • effects of sesamol sesamin and sesamolin extracted from roasted Sesame Oil on the thermal oxidation of methyl linoleate
    Lwt - Food Science and Technology, 2008
    Co-Authors: Jinyoung Lee, Yoosung Lee, Eunok Choe
    Abstract:

    This study investigated the effects of lignan compounds extracted from roasted Sesame Oil, which were sesamol, sesamin, and sesamolin, on oxidation of methyl linoleate (ML) during heating. These compounds were added at 500 or 1000 mg/kg to ML, and α-tocopherol was used as a reference antioxidant. The ML added with lignans or α-tocopherol was heated at 180 °C for 60 min. Thermal oxidation of ML was evaluated by conjugated dienoic acid (CDA) contents, p-anisidine value (PAV), and ML retention. Contents changes of lignan compounds or α-tocopherol in ML during heating were monitored by high-performance liquid chromatography. CDA contents and PAV of samples increased and ML decreased with heating time at 180 °C. Samples added with lignan compounds showed lower CDA contents and PAV but higher ML retention than samples without lignan compounds. The antioxidant activity of Sesame Oil lignan compounds in ML oxidation during heating tended to be higher than that of α-tocopherol. The contents of lignan compounds in samples decreased with heating time due to their degradation, but the degradation rates were lower than that of α-tocopherol. This study suggested that Sesame Oil lignan compounds be used as antioxidants in Oil at high temperatures for deep-fat frying due to their higher effectiveness and stability than α-tocopherol.

  • extraction of lignan compounds from roasted Sesame Oil and their effects on the autoxidation of methyl linoleate
    Journal of Food Science, 2006
    Co-Authors: Jinyoung Lee, Eunok Choe
    Abstract:

    :  Lignan compounds were extracted from roasted Sesame Oil and their effects on the autoxidation of methyl linoleate (ML) were studied. Lignan compounds extracted from roasted Sesame Oil, sesamol, sesamin, and sesamolin, were added to ML, which was then oxidized at 60 oC for 18 h in the dark. Alpha-tocopherol was separately added to ML for a reference antioxidant. Degree of ML oxidation was monitored by conjugated dienoic acid (CDA) contents and p-anisidine value (PAV) by AOCS methods, and ML retention by gas chromatography. CDA contents and PAV of samples increased with the oxidation time at 60 oC in the dark, and ML decreased. Sesamol-, sesamin-, or sesamolin-added samples showed lower CDA contents, PAV, and ML loss than the samples without lignans during oxidation in the dark, which indicated that lignan compounds lowered the ML autoxidation. The antioxidant activity of sesamol was significantly higher (P < 0.05) than that of sesamin, sesamolin, or α-tocopherol. Lignan compounds added to ML were degraded during the autoxidation of ML, and the degradation rate was higher in sesamol- than in sesamin-, or sesamolin-added ML, but was lower than in tocopherol-added samples. As the lignan compounds concentration in ML increased, the degradation rate of lignans decreased, and the inhibition of the ML autoxidation by lignan compounds increased. The results strongly suggested that the autoxidative stability of ML could be improved by the addition of sesamol, sesamin, or sesamolin extracted from the roasted Sesame Oil.

  • oxidative stability of soybean and Sesame Oil mixture during frying of flour dough
    Journal of Food Science, 2006
    Co-Authors: J Chung, Jiyeun Lee, Eunok Choe
    Abstract:

    ABSTRACT: Effects of roasted Sesame seed Oil on the oxidative stability of soybean Oil during frying of flour dough at 160 °C were studied by determining fatty acid composition and conjugated dienoic acid (CDA), p-anisidine (PA), and free fatty acid (FFA) values. Concentration of Sesame Oil in frying Oil was 0%, 10%, 20%, or 30% (v/v). Tocopherols and lignan compounds in the frying Oil were also determined by high-performance liquid chromatography. As the number of fryings performed by the Oil increased, linolenic acid content in frying Oil decreased, and the decreasing rate was lower in frying Oil containing Sesame Oil than in the Oil containing no Sesame Oil. CDA and FFA values of frying Oil increased during frying and their relative values to the initial value were lower in frying Oil containing Sesame Oil than in the Oil containing no Sesame Oil. This indicates that the addition of Sesame Oil improved thermooxidative stability of frying Oil, possibly due to the presence of lignan compounds in Sesame Oil. Tocopherols and lignan compounds in frying Oil decreased during frying. As the amount of Sesame Oil in frying Oil increased, degradation of tocopherols increased and lignan compounds degradation decreased. Tocopherols were suggested to protect lignan compounds in Sesame Oil from decomposition during frying.

Cengiz Öner - One of the best experts on this subject based on the ideXlab platform.

  • The comparison of engine performance and exhaust emission characteristics of Sesame Oil-diesel fuel mixture with diesel fuel in a direct injection diesel engine.
    Renewable Energy, 2008
    Co-Authors: Şehmus Altun, Hüsamettin Bulut, Cengiz Öner
    Abstract:

    The use of vegetable Oils as a fuel in diesel engines causes some problems due to their high viscosity compared with conventional diesel fuel. Various techniques and methods are used to solve the problems resulting from high viscosity. One of these techniques is fuel blending. In this study, a blend of 50% Sesame Oil and 50% diesel fuel was used as an alternative fuel in a direct injection diesel engine. Engine performance and exhaust emissions were investigated and compared with the ordinary diesel fuel in a diesel engine. The experimental results show that the engine power and torque of the mixture of Sesame Oil–diesel fuel are close to the values obtained from diesel fuel and the amounts of exhaust emissions are lower than those of diesel fuel. Hence, it is seen that blend of Sesame Oil and diesel fuel can be used as an alternative fuel successfully in a diesel engine without any modification and also it is an environmental friendly fuel in terms of emission parameters.