The Experts below are selected from a list of 18543 Experts worldwide ranked by ideXlab platform

Sompol Skullong - One of the best experts on this subject based on the ideXlab platform.

  • heat release analysis and Thermal Efficiency of a single cylinder diesel dual fuel Engine with gasoline port injection
    Case Studies in Thermal Engineering, 2018
    Co-Authors: Chondanai Vipavanich, Sathaporn Chuepeng, Sompol Skullong
    Abstract:

    Abstract Cleaner diesel Engines have been successively developed to meet a compromised solution for issues concerning performance and emission regulation. Combustion and exhaust gas after-treatment technologies are exhaustively settled to resolve those problems. A key improvement of the emissions is diesel dual fuel combustion that increases operating range of the premixed combustion. The main aim of this work is to explore the heat release, fuel consumption, and Thermal Efficiency of a single cylinder diesel dual fuel Engine. An intake port fuel injection of gasoline with the flow rates between 0 and 0.06 g/s was accomplished to form a premixed charge prior to induction into the combustion chamber and ignition by the main diesel fuel. The Engine was operated on medium load at 1700 rpm without exhaust gas recirculation. An Engine indicating system composed of a cylinder pressure transducer and a shaft encoder was used to investigate combustion characteristics based on the first law of thermodynamics. The combustion of higher gasoline pre-mixer increased heat release rates, shortened combustion duration, and increased maximum cylinder pressure than neat diesel combustion. Increasing gasoline proportion reduced the diesel fuel and total fuel consumptions. This enhanced the Engine Thermal Efficiency over the diesel baseline combustion.

  • Heat release analysis and Thermal Efficiency of a single cylinder diesel dual fuel Engine with gasoline port injection
    Elsevier, 2018
    Co-Authors: Chondanai Vipavanich, Sathaporn Chuepeng, Sompol Skullong
    Abstract:

    Cleaner diesel Engines have been successively developed to meet a compromised solution for issues concerning performance and emission regulation. Combustion and exhaust gas after-treatment technologies are exhaustively settled to resolve those problems. A key improvement of the emissions is diesel dual fuel combustion that increases operating range of the premixed combustion. The main aim of this work is to explore the heat release, fuel consumption, and Thermal Efficiency of a single cylinder diesel dual fuel Engine. An intake port fuel injection of gasoline with the flow rates between 0 and 0.06 g/s was accomplished to form a premixed charge prior to induction into the combustion chamber and ignition by the main diesel fuel. The Engine was operated on medium load at 1700 rpm without exhaust gas recirculation. An Engine indicating system composed of a cylinder pressure transducer and a shaft encoder was used to investigate combustion characteristics based on the first law of thermodynamics. The combustion of higher gasoline pre-mixer increased heat release rates, shortened combustion duration, and increased maximum cylinder pressure than neat diesel combustion. Increasing gasoline proportion reduced the diesel fuel and total fuel consumptions. This enhanced the Engine Thermal Efficiency over the diesel baseline combustion. Keywords: Combustion, Diesel, Dual fuel, Efficiency, Gasoline, Heat releas

Jianqin Fu - One of the best experts on this subject based on the ideXlab platform.

  • comparison and analysis of Engine exhaust gas energy recovery potential through various bottom cycles
    Applied Thermal Engineering, 2013
    Co-Authors: Jianqin Fu, L J Wang, Zhengxin Xu, Banglin Deng
    Abstract:

    Abstract In this paper, aimed to recover Engine exhaust gas energy and improve Engine Thermal Efficiency, various means of bottom cycles for Engine exhaust gas energy recovery are proposed, and those include direct recovery means through exhaust gas expansion, such as secondary expansion, and indirect recovery means through heat transfer, such as Rankine steam cycle, Brayton air cycle, etc. The performances and characteristics of each bottom cycle are studied by cycle processes calculation and then the energy recovery potentials are compared. The results show that direct recovery bottom cycle through secondary expansion demonstrates little, if any, positive potential for a gasoline Engine, and it only suits to diesel Engine at full load with high boost pressure. The improvement range also differs with Engine speeds and energy recovery potential is low. However, indirect recovery bottom cycles have larger applied range and higher exhaust gas energy recovery potential compared to direct recovery means. In all indirect recovery bottom cycles discussed, the maximum energy recovery potentials reduce in the sequence of over-heated Rankine steam cycle, standard Rankine steam cycle, Brayton air cycle with regeneration and standard Brayton air cycle.

Chondanai Vipavanich - One of the best experts on this subject based on the ideXlab platform.

  • heat release analysis and Thermal Efficiency of a single cylinder diesel dual fuel Engine with gasoline port injection
    Case Studies in Thermal Engineering, 2018
    Co-Authors: Chondanai Vipavanich, Sathaporn Chuepeng, Sompol Skullong
    Abstract:

    Abstract Cleaner diesel Engines have been successively developed to meet a compromised solution for issues concerning performance and emission regulation. Combustion and exhaust gas after-treatment technologies are exhaustively settled to resolve those problems. A key improvement of the emissions is diesel dual fuel combustion that increases operating range of the premixed combustion. The main aim of this work is to explore the heat release, fuel consumption, and Thermal Efficiency of a single cylinder diesel dual fuel Engine. An intake port fuel injection of gasoline with the flow rates between 0 and 0.06 g/s was accomplished to form a premixed charge prior to induction into the combustion chamber and ignition by the main diesel fuel. The Engine was operated on medium load at 1700 rpm without exhaust gas recirculation. An Engine indicating system composed of a cylinder pressure transducer and a shaft encoder was used to investigate combustion characteristics based on the first law of thermodynamics. The combustion of higher gasoline pre-mixer increased heat release rates, shortened combustion duration, and increased maximum cylinder pressure than neat diesel combustion. Increasing gasoline proportion reduced the diesel fuel and total fuel consumptions. This enhanced the Engine Thermal Efficiency over the diesel baseline combustion.

  • Heat release analysis and Thermal Efficiency of a single cylinder diesel dual fuel Engine with gasoline port injection
    Elsevier, 2018
    Co-Authors: Chondanai Vipavanich, Sathaporn Chuepeng, Sompol Skullong
    Abstract:

    Cleaner diesel Engines have been successively developed to meet a compromised solution for issues concerning performance and emission regulation. Combustion and exhaust gas after-treatment technologies are exhaustively settled to resolve those problems. A key improvement of the emissions is diesel dual fuel combustion that increases operating range of the premixed combustion. The main aim of this work is to explore the heat release, fuel consumption, and Thermal Efficiency of a single cylinder diesel dual fuel Engine. An intake port fuel injection of gasoline with the flow rates between 0 and 0.06 g/s was accomplished to form a premixed charge prior to induction into the combustion chamber and ignition by the main diesel fuel. The Engine was operated on medium load at 1700 rpm without exhaust gas recirculation. An Engine indicating system composed of a cylinder pressure transducer and a shaft encoder was used to investigate combustion characteristics based on the first law of thermodynamics. The combustion of higher gasoline pre-mixer increased heat release rates, shortened combustion duration, and increased maximum cylinder pressure than neat diesel combustion. Increasing gasoline proportion reduced the diesel fuel and total fuel consumptions. This enhanced the Engine Thermal Efficiency over the diesel baseline combustion. Keywords: Combustion, Diesel, Dual fuel, Efficiency, Gasoline, Heat releas

Banglin Deng - One of the best experts on this subject based on the ideXlab platform.

  • comparison and analysis of Engine exhaust gas energy recovery potential through various bottom cycles
    Applied Thermal Engineering, 2013
    Co-Authors: Jianqin Fu, L J Wang, Zhengxin Xu, Banglin Deng
    Abstract:

    Abstract In this paper, aimed to recover Engine exhaust gas energy and improve Engine Thermal Efficiency, various means of bottom cycles for Engine exhaust gas energy recovery are proposed, and those include direct recovery means through exhaust gas expansion, such as secondary expansion, and indirect recovery means through heat transfer, such as Rankine steam cycle, Brayton air cycle, etc. The performances and characteristics of each bottom cycle are studied by cycle processes calculation and then the energy recovery potentials are compared. The results show that direct recovery bottom cycle through secondary expansion demonstrates little, if any, positive potential for a gasoline Engine, and it only suits to diesel Engine at full load with high boost pressure. The improvement range also differs with Engine speeds and energy recovery potential is low. However, indirect recovery bottom cycles have larger applied range and higher exhaust gas energy recovery potential compared to direct recovery means. In all indirect recovery bottom cycles discussed, the maximum energy recovery potentials reduce in the sequence of over-heated Rankine steam cycle, standard Rankine steam cycle, Brayton air cycle with regeneration and standard Brayton air cycle.

  • an open steam power cycle used for ic Engine exhaust gas energy recovery
    Energy, 2012
    Co-Authors: Jingping Liu, Chengqin Ren, Linjun Wang, Banglin Deng
    Abstract:

    Abstract In order to improve IC Engine energy utilization Efficiency, an open steam power cycle used for IC Engine exhaust gas energy recovery is proposed. The bottom cycle concept is designed on a four-cylinder naturally aspirated IC Engine: with three cylinders taken as ignition cylinder, the last one is used for steam expansion cylinder; IC Engine exhaust pipe is coupled with a Rankine steam cycle system which uses the high temperature exhaust gas to generate steam; then, the steam is injected into steam expansion cylinder and expands in the cylinder. In this way, the Otto cycle (or diesel cycle) of traditional IC Engine and the steam expansion cycle (open Rankine cycle) are coupled on IC Engine. On this basis, the energy recovery potential of this bottom cycle is studied by cycle processes calculation and parameters analysis. The research results show that the recovery Efficiency of exhaust gas energy is mainly limited by exhaust gas temperature. The maximum bottom cycle power can reach 19.2 kW and IC Engine Thermal Efficiency can be improved by 6.3% at 6000 r/min. All those can prove this novel bottom cycle concept has larger potential for energy saving and emission reduction on IC Engine.

Sathaporn Chuepeng - One of the best experts on this subject based on the ideXlab platform.

  • heat release analysis and Thermal Efficiency of a single cylinder diesel dual fuel Engine with gasoline port injection
    Case Studies in Thermal Engineering, 2018
    Co-Authors: Chondanai Vipavanich, Sathaporn Chuepeng, Sompol Skullong
    Abstract:

    Abstract Cleaner diesel Engines have been successively developed to meet a compromised solution for issues concerning performance and emission regulation. Combustion and exhaust gas after-treatment technologies are exhaustively settled to resolve those problems. A key improvement of the emissions is diesel dual fuel combustion that increases operating range of the premixed combustion. The main aim of this work is to explore the heat release, fuel consumption, and Thermal Efficiency of a single cylinder diesel dual fuel Engine. An intake port fuel injection of gasoline with the flow rates between 0 and 0.06 g/s was accomplished to form a premixed charge prior to induction into the combustion chamber and ignition by the main diesel fuel. The Engine was operated on medium load at 1700 rpm without exhaust gas recirculation. An Engine indicating system composed of a cylinder pressure transducer and a shaft encoder was used to investigate combustion characteristics based on the first law of thermodynamics. The combustion of higher gasoline pre-mixer increased heat release rates, shortened combustion duration, and increased maximum cylinder pressure than neat diesel combustion. Increasing gasoline proportion reduced the diesel fuel and total fuel consumptions. This enhanced the Engine Thermal Efficiency over the diesel baseline combustion.

  • Heat release analysis and Thermal Efficiency of a single cylinder diesel dual fuel Engine with gasoline port injection
    Elsevier, 2018
    Co-Authors: Chondanai Vipavanich, Sathaporn Chuepeng, Sompol Skullong
    Abstract:

    Cleaner diesel Engines have been successively developed to meet a compromised solution for issues concerning performance and emission regulation. Combustion and exhaust gas after-treatment technologies are exhaustively settled to resolve those problems. A key improvement of the emissions is diesel dual fuel combustion that increases operating range of the premixed combustion. The main aim of this work is to explore the heat release, fuel consumption, and Thermal Efficiency of a single cylinder diesel dual fuel Engine. An intake port fuel injection of gasoline with the flow rates between 0 and 0.06 g/s was accomplished to form a premixed charge prior to induction into the combustion chamber and ignition by the main diesel fuel. The Engine was operated on medium load at 1700 rpm without exhaust gas recirculation. An Engine indicating system composed of a cylinder pressure transducer and a shaft encoder was used to investigate combustion characteristics based on the first law of thermodynamics. The combustion of higher gasoline pre-mixer increased heat release rates, shortened combustion duration, and increased maximum cylinder pressure than neat diesel combustion. Increasing gasoline proportion reduced the diesel fuel and total fuel consumptions. This enhanced the Engine Thermal Efficiency over the diesel baseline combustion. Keywords: Combustion, Diesel, Dual fuel, Efficiency, Gasoline, Heat releas

  • Engine performance and emissions from the combustion of low-temperature Fischer-Tropsch synthetic diesel fuel and biodiesel rapeseed methyl ester blends
    International Journal of Vehicle Design, 2009
    Co-Authors: K. Theinnoi, Sathaporn Chuepeng, Andrew P. E. York, Roger Cracknell, Richard Hugh Clark
    Abstract:

    The combustion of oxygenated biodiesel (rapeseed methyl ester (RME)) improves the Engine-out particulate matter, hydrocarbon and carbon monoxide (CO) emissions, while the low-temperature Fischer?Tropsch synthetic paraffinic diesel fuel improves Engine-out NOx, CO, hydrocarbon and particulate matter emissions. Blending synthetic diesel (SD) fuel with oxygenated biodiesel could unlock potential performance synergies in the fuel properties (e.g. O2 content in RME and high cetane number of the synthetic fuels) of such blends and benefit Engine performance and emissions. The combustion of synthetic diesel fuel/RME blend, named synthetic diesel B50, has shown similar combustion characteristics to diesel fuel, while simultaneous improvements in Engine Efficiency and smoke-NOx trade-off were achieved by taking advantage of the fuel's properties. The Engine Thermal Efficiency was dependent on the fuel type, and followed the general trend: synthetic diesel > SDB50 > diesel > RME. Therefore, it has been shown that the design of a synthetic fuel with properties similar to the fuel blends presented in this work could improve Engine-out NOx, smoke and hydrocarbon emissions and maintain or improve Engine performance.