The Experts below are selected from a list of 18099 Experts worldwide ranked by ideXlab platform

Murari Mohon Roy - One of the best experts on this subject based on the ideXlab platform.

  • comparison of performance and emissions of a supercharged dual fuel engine fueled by hydrogen and hydrogen containing gaseous fuels
    International Journal of Hydrogen Energy, 2011
    Co-Authors: Murari Mohon Roy, Nobuyuki Kawahara, Eiji Tomita, Yuji Harada, Atsushi Sakane
    Abstract:

    Abstract This study investigated the engine performance and emissions of a supercharged engine fueled by hydrogen (H2), and three other hydrogen-containing gaseous fuels such as primary fuels, and diesel as pilot fuel in dual-fuel mode. The energy share of primary fuels was about 90% or more, and the rest of the energy was supplied by diesel fuel. The hydrogen-containing fuels tested in this study were 13.7% H2-Content Producer gas, 20% H2-Content Producer gas and 56.8% H2-Content coke oven gas (COG). Experiments were carried out at a constant pilot injection pressure and pilot quantity for different fuel–air equivalence ratios and at various injection timings. The experimental strategy was to optimize the pilot injection timing to maximize engine power at different fuel–air equivalence ratios without knocking and within the limit of the maximum cylinder pressure. Better thermal efficiency was obtained with the increase in H2 Content in the fuels, and neat H2 as a primary fuel produced the highest thermal efficiency. The fuel–air equivalence ratio was decreased with the increase in H2 Content in the fuels to avoid knocking. Thus, neat H2-operation produced less maximum power than other fuels, because of much leaner operations. Two-stage combustion was obtained; this is an indicator of maximum power output conditions and a precursor of knocking combustion. The emissions of CO and HC with neat H2-operation were 98–99.9% and NOx about 85–90% less than other fuels.

  • performance and emission comparison of a supercharged dual fuel engine fueled by Producer gases with varying hydrogen Content
    International Journal of Hydrogen Energy, 2009
    Co-Authors: Nobuyuki Kawahara, Eiji Tomita, Yuji Harada, Murari Mohon Roy, Atsushi Sakane
    Abstract:

    Abstract This study investigated the effect of hydrogen Content in Producer gas on the performance and exhaust emissions of a supercharged Producer gas–diesel dual-fuel engine. Two types of Producer gases were used in this study, one with low hydrogen Content (H 2  = 13.7%) and the other with high hydrogen Content (H 2  = 20%). The engine was tested for use as a co-generation engine, so power output while maintaining a reasonable thermal efficiency was important. Experiments were carried out at a constant injection pressure and injection quantity for different fuel–air equivalence ratios and at various injection timings. The experimental strategy was to optimize the injection timing to maximize engine power at different fuel–air equivalence ratios without knocking and within the limit of the maximum cylinder pressure. Two-stage combustion was obtained; this is an indicator of maximum power output conditions and a precursor of knocking combustion. Better combustion, engine performance, and exhaust emissions (except NO x ) were obtained with the high H 2 -Content Producer gas than with the low H 2 -Content Producer gas, especially under leaner conditions. Moreover, a broader window of fuel–air equivalence ratio was found with highest thermal efficiencies for the high H 2 -Content Producer gas.

Atsushi Sakane - One of the best experts on this subject based on the ideXlab platform.

  • comparison of performance and emissions of a supercharged dual fuel engine fueled by hydrogen and hydrogen containing gaseous fuels
    International Journal of Hydrogen Energy, 2011
    Co-Authors: Murari Mohon Roy, Nobuyuki Kawahara, Eiji Tomita, Yuji Harada, Atsushi Sakane
    Abstract:

    Abstract This study investigated the engine performance and emissions of a supercharged engine fueled by hydrogen (H2), and three other hydrogen-containing gaseous fuels such as primary fuels, and diesel as pilot fuel in dual-fuel mode. The energy share of primary fuels was about 90% or more, and the rest of the energy was supplied by diesel fuel. The hydrogen-containing fuels tested in this study were 13.7% H2-Content Producer gas, 20% H2-Content Producer gas and 56.8% H2-Content coke oven gas (COG). Experiments were carried out at a constant pilot injection pressure and pilot quantity for different fuel–air equivalence ratios and at various injection timings. The experimental strategy was to optimize the pilot injection timing to maximize engine power at different fuel–air equivalence ratios without knocking and within the limit of the maximum cylinder pressure. Better thermal efficiency was obtained with the increase in H2 Content in the fuels, and neat H2 as a primary fuel produced the highest thermal efficiency. The fuel–air equivalence ratio was decreased with the increase in H2 Content in the fuels to avoid knocking. Thus, neat H2-operation produced less maximum power than other fuels, because of much leaner operations. Two-stage combustion was obtained; this is an indicator of maximum power output conditions and a precursor of knocking combustion. The emissions of CO and HC with neat H2-operation were 98–99.9% and NOx about 85–90% less than other fuels.

  • performance and emission comparison of a supercharged dual fuel engine fueled by Producer gases with varying hydrogen Content
    International Journal of Hydrogen Energy, 2009
    Co-Authors: Nobuyuki Kawahara, Eiji Tomita, Yuji Harada, Murari Mohon Roy, Atsushi Sakane
    Abstract:

    Abstract This study investigated the effect of hydrogen Content in Producer gas on the performance and exhaust emissions of a supercharged Producer gas–diesel dual-fuel engine. Two types of Producer gases were used in this study, one with low hydrogen Content (H 2  = 13.7%) and the other with high hydrogen Content (H 2  = 20%). The engine was tested for use as a co-generation engine, so power output while maintaining a reasonable thermal efficiency was important. Experiments were carried out at a constant injection pressure and injection quantity for different fuel–air equivalence ratios and at various injection timings. The experimental strategy was to optimize the injection timing to maximize engine power at different fuel–air equivalence ratios without knocking and within the limit of the maximum cylinder pressure. Two-stage combustion was obtained; this is an indicator of maximum power output conditions and a precursor of knocking combustion. Better combustion, engine performance, and exhaust emissions (except NO x ) were obtained with the high H 2 -Content Producer gas than with the low H 2 -Content Producer gas, especially under leaner conditions. Moreover, a broader window of fuel–air equivalence ratio was found with highest thermal efficiencies for the high H 2 -Content Producer gas.

Nobuyuki Kawahara - One of the best experts on this subject based on the ideXlab platform.

  • comparison of performance and emissions of a supercharged dual fuel engine fueled by hydrogen and hydrogen containing gaseous fuels
    International Journal of Hydrogen Energy, 2011
    Co-Authors: Murari Mohon Roy, Nobuyuki Kawahara, Eiji Tomita, Yuji Harada, Atsushi Sakane
    Abstract:

    Abstract This study investigated the engine performance and emissions of a supercharged engine fueled by hydrogen (H2), and three other hydrogen-containing gaseous fuels such as primary fuels, and diesel as pilot fuel in dual-fuel mode. The energy share of primary fuels was about 90% or more, and the rest of the energy was supplied by diesel fuel. The hydrogen-containing fuels tested in this study were 13.7% H2-Content Producer gas, 20% H2-Content Producer gas and 56.8% H2-Content coke oven gas (COG). Experiments were carried out at a constant pilot injection pressure and pilot quantity for different fuel–air equivalence ratios and at various injection timings. The experimental strategy was to optimize the pilot injection timing to maximize engine power at different fuel–air equivalence ratios without knocking and within the limit of the maximum cylinder pressure. Better thermal efficiency was obtained with the increase in H2 Content in the fuels, and neat H2 as a primary fuel produced the highest thermal efficiency. The fuel–air equivalence ratio was decreased with the increase in H2 Content in the fuels to avoid knocking. Thus, neat H2-operation produced less maximum power than other fuels, because of much leaner operations. Two-stage combustion was obtained; this is an indicator of maximum power output conditions and a precursor of knocking combustion. The emissions of CO and HC with neat H2-operation were 98–99.9% and NOx about 85–90% less than other fuels.

  • performance and emission comparison of a supercharged dual fuel engine fueled by Producer gases with varying hydrogen Content
    International Journal of Hydrogen Energy, 2009
    Co-Authors: Nobuyuki Kawahara, Eiji Tomita, Yuji Harada, Murari Mohon Roy, Atsushi Sakane
    Abstract:

    Abstract This study investigated the effect of hydrogen Content in Producer gas on the performance and exhaust emissions of a supercharged Producer gas–diesel dual-fuel engine. Two types of Producer gases were used in this study, one with low hydrogen Content (H 2  = 13.7%) and the other with high hydrogen Content (H 2  = 20%). The engine was tested for use as a co-generation engine, so power output while maintaining a reasonable thermal efficiency was important. Experiments were carried out at a constant injection pressure and injection quantity for different fuel–air equivalence ratios and at various injection timings. The experimental strategy was to optimize the injection timing to maximize engine power at different fuel–air equivalence ratios without knocking and within the limit of the maximum cylinder pressure. Two-stage combustion was obtained; this is an indicator of maximum power output conditions and a precursor of knocking combustion. Better combustion, engine performance, and exhaust emissions (except NO x ) were obtained with the high H 2 -Content Producer gas than with the low H 2 -Content Producer gas, especially under leaner conditions. Moreover, a broader window of fuel–air equivalence ratio was found with highest thermal efficiencies for the high H 2 -Content Producer gas.

Yuji Harada - One of the best experts on this subject based on the ideXlab platform.

  • comparison of performance and emissions of a supercharged dual fuel engine fueled by hydrogen and hydrogen containing gaseous fuels
    International Journal of Hydrogen Energy, 2011
    Co-Authors: Murari Mohon Roy, Nobuyuki Kawahara, Eiji Tomita, Yuji Harada, Atsushi Sakane
    Abstract:

    Abstract This study investigated the engine performance and emissions of a supercharged engine fueled by hydrogen (H2), and three other hydrogen-containing gaseous fuels such as primary fuels, and diesel as pilot fuel in dual-fuel mode. The energy share of primary fuels was about 90% or more, and the rest of the energy was supplied by diesel fuel. The hydrogen-containing fuels tested in this study were 13.7% H2-Content Producer gas, 20% H2-Content Producer gas and 56.8% H2-Content coke oven gas (COG). Experiments were carried out at a constant pilot injection pressure and pilot quantity for different fuel–air equivalence ratios and at various injection timings. The experimental strategy was to optimize the pilot injection timing to maximize engine power at different fuel–air equivalence ratios without knocking and within the limit of the maximum cylinder pressure. Better thermal efficiency was obtained with the increase in H2 Content in the fuels, and neat H2 as a primary fuel produced the highest thermal efficiency. The fuel–air equivalence ratio was decreased with the increase in H2 Content in the fuels to avoid knocking. Thus, neat H2-operation produced less maximum power than other fuels, because of much leaner operations. Two-stage combustion was obtained; this is an indicator of maximum power output conditions and a precursor of knocking combustion. The emissions of CO and HC with neat H2-operation were 98–99.9% and NOx about 85–90% less than other fuels.

  • performance and emission comparison of a supercharged dual fuel engine fueled by Producer gases with varying hydrogen Content
    International Journal of Hydrogen Energy, 2009
    Co-Authors: Nobuyuki Kawahara, Eiji Tomita, Yuji Harada, Murari Mohon Roy, Atsushi Sakane
    Abstract:

    Abstract This study investigated the effect of hydrogen Content in Producer gas on the performance and exhaust emissions of a supercharged Producer gas–diesel dual-fuel engine. Two types of Producer gases were used in this study, one with low hydrogen Content (H 2  = 13.7%) and the other with high hydrogen Content (H 2  = 20%). The engine was tested for use as a co-generation engine, so power output while maintaining a reasonable thermal efficiency was important. Experiments were carried out at a constant injection pressure and injection quantity for different fuel–air equivalence ratios and at various injection timings. The experimental strategy was to optimize the injection timing to maximize engine power at different fuel–air equivalence ratios without knocking and within the limit of the maximum cylinder pressure. Two-stage combustion was obtained; this is an indicator of maximum power output conditions and a precursor of knocking combustion. Better combustion, engine performance, and exhaust emissions (except NO x ) were obtained with the high H 2 -Content Producer gas than with the low H 2 -Content Producer gas, especially under leaner conditions. Moreover, a broader window of fuel–air equivalence ratio was found with highest thermal efficiencies for the high H 2 -Content Producer gas.

Eiji Tomita - One of the best experts on this subject based on the ideXlab platform.

  • comparison of performance and emissions of a supercharged dual fuel engine fueled by hydrogen and hydrogen containing gaseous fuels
    International Journal of Hydrogen Energy, 2011
    Co-Authors: Murari Mohon Roy, Nobuyuki Kawahara, Eiji Tomita, Yuji Harada, Atsushi Sakane
    Abstract:

    Abstract This study investigated the engine performance and emissions of a supercharged engine fueled by hydrogen (H2), and three other hydrogen-containing gaseous fuels such as primary fuels, and diesel as pilot fuel in dual-fuel mode. The energy share of primary fuels was about 90% or more, and the rest of the energy was supplied by diesel fuel. The hydrogen-containing fuels tested in this study were 13.7% H2-Content Producer gas, 20% H2-Content Producer gas and 56.8% H2-Content coke oven gas (COG). Experiments were carried out at a constant pilot injection pressure and pilot quantity for different fuel–air equivalence ratios and at various injection timings. The experimental strategy was to optimize the pilot injection timing to maximize engine power at different fuel–air equivalence ratios without knocking and within the limit of the maximum cylinder pressure. Better thermal efficiency was obtained with the increase in H2 Content in the fuels, and neat H2 as a primary fuel produced the highest thermal efficiency. The fuel–air equivalence ratio was decreased with the increase in H2 Content in the fuels to avoid knocking. Thus, neat H2-operation produced less maximum power than other fuels, because of much leaner operations. Two-stage combustion was obtained; this is an indicator of maximum power output conditions and a precursor of knocking combustion. The emissions of CO and HC with neat H2-operation were 98–99.9% and NOx about 85–90% less than other fuels.

  • performance and emission comparison of a supercharged dual fuel engine fueled by Producer gases with varying hydrogen Content
    International Journal of Hydrogen Energy, 2009
    Co-Authors: Nobuyuki Kawahara, Eiji Tomita, Yuji Harada, Murari Mohon Roy, Atsushi Sakane
    Abstract:

    Abstract This study investigated the effect of hydrogen Content in Producer gas on the performance and exhaust emissions of a supercharged Producer gas–diesel dual-fuel engine. Two types of Producer gases were used in this study, one with low hydrogen Content (H 2  = 13.7%) and the other with high hydrogen Content (H 2  = 20%). The engine was tested for use as a co-generation engine, so power output while maintaining a reasonable thermal efficiency was important. Experiments were carried out at a constant injection pressure and injection quantity for different fuel–air equivalence ratios and at various injection timings. The experimental strategy was to optimize the injection timing to maximize engine power at different fuel–air equivalence ratios without knocking and within the limit of the maximum cylinder pressure. Two-stage combustion was obtained; this is an indicator of maximum power output conditions and a precursor of knocking combustion. Better combustion, engine performance, and exhaust emissions (except NO x ) were obtained with the high H 2 -Content Producer gas than with the low H 2 -Content Producer gas, especially under leaner conditions. Moreover, a broader window of fuel–air equivalence ratio was found with highest thermal efficiencies for the high H 2 -Content Producer gas.