The Experts below are selected from a list of 22596 Experts worldwide ranked by ideXlab platform
Tiegang Fang - One of the best experts on this subject based on the ideXlab platform.
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spray and atomization of diesel Fuel and its alternatives from a single hole injector using a common rail Fuel Injection System
Fuel, 2013Co-Authors: Pin Chia Chen, Wei Cheng Wang, William L Roberts, Tiegang FangAbstract:Abstract Fuel spray and atomization characteristics play an important role in the performance of internal combustion engines. As the reserves of petroleum Fuel are expected to be depleted within a few decades, finding alternative Fuels that are economically viable and sustainable to replace the petroleum Fuel has attracted much research attention. In this work, the spray and atomization characteristics were investigated for commercial No. 2 diesel Fuel, biodiesel (FAME) derived from waste cooking oil (B100), 20% biodiesel blended diesel Fuel (B20), renewable diesel Fuel produced in house, and civil aircraft jet Fuel (Jet-A). Droplet diameters and particle size distributions were measured by a laser diffraction particle analyzing System and the spray tip penetrations and cone angles were acquired using a high speed imaging technique. All experiments were conducted by employing a common-rail high-pressure Fuel Injection System with a single-hole nozzle under room temperature and pressure. The experimental results showed that biodiesel and jet Fuel had different features compared with diesel. Longer spray tip penetration and larger droplet diameters were observed for B100. The smaller droplet size of the Jet-A were believed to be caused by its relatively lower viscosity and surface tension. B20 showed similar characteristics to diesel but with slightly larger droplet sizes and shorter tip penetration. Renewable diesel Fuel showed closer droplet size and spray penetration to Jet-A with both smaller than diesel. As a result, optimizing the trade-off between spray volume and droplet size for different Fuels remains a great challenge. However, high-pressure Injection helps to optimize the trade-off of spray volume and droplet sizes. Furthermore, it was observed that the smallest droplets were within a region near the injector nozzle tip and grew larger along the axial and radial direction. The variation of droplet diameters became smaller with increasing Injection pressure.
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spray and atomization of diesel Fuel and its alternatives from a single hole injector using a common rail Fuel Injection System
Fuel, 2013Co-Authors: Pin Chia Chen, Wei Cheng Wang, William L Roberts, Tiegang FangAbstract:Abstract Fuel spray and atomization characteristics play an important role in the performance of internal combustion engines. As the reserves of petroleum Fuel are expected to be depleted within a few decades, finding alternative Fuels that are economically viable and sustainable to replace the petroleum Fuel has attracted much research attention. In this work, the spray and atomization characteristics were investigated for commercial No. 2 diesel Fuel, biodiesel (FAME) derived from waste cooking oil (B100), 20% biodiesel blended diesel Fuel (B20), renewable diesel Fuel produced in house, and civil aircraft jet Fuel (Jet-A). Droplet diameters and particle size distributions were measured by a laser diffraction particle analyzing System and the spray tip penetrations and cone angles were acquired using a high speed imaging technique. All experiments were conducted by employing a common-rail high-pressure Fuel Injection System with a single-hole nozzle under room temperature and pressure. The experimental results showed that biodiesel and jet Fuel had different features compared with diesel. Longer spray tip penetration and larger droplet diameters were observed for B100. The smaller droplet size of the Jet-A were believed to be caused by its relatively lower viscosity and surface tension. B20 showed similar characteristics to diesel but with slightly larger droplet sizes and shorter tip penetration. Renewable diesel Fuel showed closer droplet size and spray penetration to Jet-A with both smaller than diesel. As a result, optimizing the trade-off between spray volume and droplet size for different Fuels remains a great challenge. However, high-pressure Injection helps to optimize the trade-off of spray volume and droplet sizes. Furthermore, it was observed that the smallest droplets were within a region near the injector nozzle tip and grew larger along the axial and radial direction. The variation of droplet diameters became smaller with increasing Injection pressure.
Mohd Faisal Hushim - One of the best experts on this subject based on the ideXlab platform.
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a review on retrofit Fuel Injection technology for small carburetted motorcycle engines towards lower Fuel consumption and cleaner exhaust emission
Renewable & Sustainable Energy Reviews, 2014Co-Authors: Mohd Taufiq Muslim, Ahmad Jais Alimin, Hazlina Selamat, Noorfaizah Mohd Rohi, Mohd Faisal HushimAbstract:Abstract Most motorcycles in developing countries use carburettors as the Fuel delivery System especially for models with cubic capacity of less than 350 cc. However, small gasoline carburetted engines suffer from low operating efficiency, high Fuel consumption and produce high level of hazardous emissions. A retrofit Fuel Injection System (FIS) is a System that is developed to totally replace the conventional carburettor System to improve its Fuel economy and exhaust emissions, providing a low-cost alternative in an effort to reduce Fuel costs and air pollution. This paper provides a comprehensive review on the retrofit Fuel Injection technology developed for small gasoline spark ignition (SI) motorcycle engines from 50 cc to 350 cc. Three main retrofit FIS schemes – the throttle body Injection (TBI), port Fuel Injection (PFI) and direct Injection (DI) – are compared, in terms of configurations, complexity, costs and performances.
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Effect of Intake Manifold Angle of Port-Fuel Injection Retrofit-Kit to the Performances of an S.I. Engine
Applied Mechanics and Materials, 2012Co-Authors: Mohd Faisal Hushim, Ahmad Jais Alimin, Mohd Farris MansorAbstract:Fuelling System is one of the crucial variables that must be focused on, in order to achieve good Fuel efficiency and low engine out emissions. Fuel Injection System seems a promising technology as a medium to supply suppressed Fuel because of its high Fuel delivery efficiency, enhanced Fuel economy and reduced engine out emission. Port-Fuel Injection (PFI) System has been used widely on small four-stroke gasoline engine because of its simplicity compared to direct Injection (DI) System. In this study, the effects of intake manifold angle of a PFI retrofit-kit to the engine performances and emission characteristics were investigated. Experimental works comprised wide-open throttle with variable dynamometer loads for two different angles: 90° and 150°. From this study, it was observed that 150° was the best angle, which produced high brake power (BP) and brake mean effective pressure (BMEP), brake specific Fuel consumption (BSFC) and hydrocarbon (HC) emission.
Pin Chia Chen - One of the best experts on this subject based on the ideXlab platform.
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spray and atomization of diesel Fuel and its alternatives from a single hole injector using a common rail Fuel Injection System
Fuel, 2013Co-Authors: Pin Chia Chen, Wei Cheng Wang, William L Roberts, Tiegang FangAbstract:Abstract Fuel spray and atomization characteristics play an important role in the performance of internal combustion engines. As the reserves of petroleum Fuel are expected to be depleted within a few decades, finding alternative Fuels that are economically viable and sustainable to replace the petroleum Fuel has attracted much research attention. In this work, the spray and atomization characteristics were investigated for commercial No. 2 diesel Fuel, biodiesel (FAME) derived from waste cooking oil (B100), 20% biodiesel blended diesel Fuel (B20), renewable diesel Fuel produced in house, and civil aircraft jet Fuel (Jet-A). Droplet diameters and particle size distributions were measured by a laser diffraction particle analyzing System and the spray tip penetrations and cone angles were acquired using a high speed imaging technique. All experiments were conducted by employing a common-rail high-pressure Fuel Injection System with a single-hole nozzle under room temperature and pressure. The experimental results showed that biodiesel and jet Fuel had different features compared with diesel. Longer spray tip penetration and larger droplet diameters were observed for B100. The smaller droplet size of the Jet-A were believed to be caused by its relatively lower viscosity and surface tension. B20 showed similar characteristics to diesel but with slightly larger droplet sizes and shorter tip penetration. Renewable diesel Fuel showed closer droplet size and spray penetration to Jet-A with both smaller than diesel. As a result, optimizing the trade-off between spray volume and droplet size for different Fuels remains a great challenge. However, high-pressure Injection helps to optimize the trade-off of spray volume and droplet sizes. Furthermore, it was observed that the smallest droplets were within a region near the injector nozzle tip and grew larger along the axial and radial direction. The variation of droplet diameters became smaller with increasing Injection pressure.
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spray and atomization of diesel Fuel and its alternatives from a single hole injector using a common rail Fuel Injection System
Fuel, 2013Co-Authors: Pin Chia Chen, Wei Cheng Wang, William L Roberts, Tiegang FangAbstract:Abstract Fuel spray and atomization characteristics play an important role in the performance of internal combustion engines. As the reserves of petroleum Fuel are expected to be depleted within a few decades, finding alternative Fuels that are economically viable and sustainable to replace the petroleum Fuel has attracted much research attention. In this work, the spray and atomization characteristics were investigated for commercial No. 2 diesel Fuel, biodiesel (FAME) derived from waste cooking oil (B100), 20% biodiesel blended diesel Fuel (B20), renewable diesel Fuel produced in house, and civil aircraft jet Fuel (Jet-A). Droplet diameters and particle size distributions were measured by a laser diffraction particle analyzing System and the spray tip penetrations and cone angles were acquired using a high speed imaging technique. All experiments were conducted by employing a common-rail high-pressure Fuel Injection System with a single-hole nozzle under room temperature and pressure. The experimental results showed that biodiesel and jet Fuel had different features compared with diesel. Longer spray tip penetration and larger droplet diameters were observed for B100. The smaller droplet size of the Jet-A were believed to be caused by its relatively lower viscosity and surface tension. B20 showed similar characteristics to diesel but with slightly larger droplet sizes and shorter tip penetration. Renewable diesel Fuel showed closer droplet size and spray penetration to Jet-A with both smaller than diesel. As a result, optimizing the trade-off between spray volume and droplet size for different Fuels remains a great challenge. However, high-pressure Injection helps to optimize the trade-off of spray volume and droplet sizes. Furthermore, it was observed that the smallest droplets were within a region near the injector nozzle tip and grew larger along the axial and radial direction. The variation of droplet diameters became smaller with increasing Injection pressure.
Zuohua Huang - One of the best experts on this subject based on the ideXlab platform.
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Experimental investigation on the effect of n-butanol blending on spray characteristics of soybean biodiesel in a common-rail Fuel Injection System
Fuel, 2016Co-Authors: Jun Mo, Junge Li, Li Guan, Chenglong Tang, Zuohua HuangAbstract:In this work, the spray and atomization characteristics of neat soybean biodiesel Fuel (BD100) and biodiesel/n-butanol blends (BDB80, 20% of n-butanol (wt.)), were investigated at room temperature and ambient pressure of 1 and 2 MPa. A high-pressure common-rail Injection System was used to generate sprays from an injector (aperture 0.25 mm) at a maximum Injection pressure of 100 MPa. High speed schlieren technique was used to record the highly transient spray penetration process, through which the spray macroscopic parameters such as spray tip penetration, spray cone angle, projected spray area and spray volume were deduced. In addition, droplet size, number density and its sauter mean values at specific location within the spray cone was analyzed, by using a particle/droplet image analyzing technique (PDIA). Results show that longer spray tip penetration and larger droplet diameters were observed for BD100, compared with BDB80, which was attributed to the lower viscosity and surface tension of BDB80. BDB80 has a spray volume less than BD100, the same trend is also observed in the spray tip penetration. BD100 presents bigger spray area than BDB80 under 1 MPa ambient pressure. This is mainly attributed to the bigger spray tip penetration of BD100. The results also show that droplets at the spray periphery have larger diameters than those in the center of the spray due to the effect of air entrainment at the spray periphery. The small particles of Fuels are easily sucked into internal of spray. Furthermore, the droplets near the liquid core of spray have more small numbers, where the effect of viscosity is dominant.
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effect of di n butyl ether blending with soybean biodiesel on spray and atomization characteristics in a common rail Fuel Injection System
Fuel, 2015Co-Authors: Li Guan, Chenglong Tang, Ke Yang, Zuohua HuangAbstract:In this work, the spray and atomization characteristics of soybean biodiesel, di-n-butyl ether (DBE)/biodiesel blends and 0# diesel were investigated by using a high pressure common-rail Injection System. The macroscopic spray characteristics such as the spray tip penetration (STP), the cone angle and the spray projected area were obtained from the spray images captured through high speed schlieren photography. The results show that as DBE is blended into biodiesel, the STP is decreased and the spray cone angle, projected area are increased and when the DBE volume fraction in the DBE/biodiesel blends reaches 30%, the STP, the spray cone angle and the projected area are comparable to that of diesel. For all the tested Fuels, the microscopic spray characteristics such as the Sauter Mean Diameter (SMD) and statistical size distributions were measured by particle/droplet image analysis (PDIA) technique. The droplets number density distribution shows that for all the tested Fuels, the region near the central of spray has the largest droplets number density and it decreases sharply as the position shifts from the center to the edge of the spray. As DBE is blended into biodiesel, smaller SMD is observed, which indicates that DBE addition can promote the atomization of biodiesel.
William L Roberts - One of the best experts on this subject based on the ideXlab platform.
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spray and atomization of diesel Fuel and its alternatives from a single hole injector using a common rail Fuel Injection System
Fuel, 2013Co-Authors: Pin Chia Chen, Wei Cheng Wang, William L Roberts, Tiegang FangAbstract:Abstract Fuel spray and atomization characteristics play an important role in the performance of internal combustion engines. As the reserves of petroleum Fuel are expected to be depleted within a few decades, finding alternative Fuels that are economically viable and sustainable to replace the petroleum Fuel has attracted much research attention. In this work, the spray and atomization characteristics were investigated for commercial No. 2 diesel Fuel, biodiesel (FAME) derived from waste cooking oil (B100), 20% biodiesel blended diesel Fuel (B20), renewable diesel Fuel produced in house, and civil aircraft jet Fuel (Jet-A). Droplet diameters and particle size distributions were measured by a laser diffraction particle analyzing System and the spray tip penetrations and cone angles were acquired using a high speed imaging technique. All experiments were conducted by employing a common-rail high-pressure Fuel Injection System with a single-hole nozzle under room temperature and pressure. The experimental results showed that biodiesel and jet Fuel had different features compared with diesel. Longer spray tip penetration and larger droplet diameters were observed for B100. The smaller droplet size of the Jet-A were believed to be caused by its relatively lower viscosity and surface tension. B20 showed similar characteristics to diesel but with slightly larger droplet sizes and shorter tip penetration. Renewable diesel Fuel showed closer droplet size and spray penetration to Jet-A with both smaller than diesel. As a result, optimizing the trade-off between spray volume and droplet size for different Fuels remains a great challenge. However, high-pressure Injection helps to optimize the trade-off of spray volume and droplet sizes. Furthermore, it was observed that the smallest droplets were within a region near the injector nozzle tip and grew larger along the axial and radial direction. The variation of droplet diameters became smaller with increasing Injection pressure.
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spray and atomization of diesel Fuel and its alternatives from a single hole injector using a common rail Fuel Injection System
Fuel, 2013Co-Authors: Pin Chia Chen, Wei Cheng Wang, William L Roberts, Tiegang FangAbstract:Abstract Fuel spray and atomization characteristics play an important role in the performance of internal combustion engines. As the reserves of petroleum Fuel are expected to be depleted within a few decades, finding alternative Fuels that are economically viable and sustainable to replace the petroleum Fuel has attracted much research attention. In this work, the spray and atomization characteristics were investigated for commercial No. 2 diesel Fuel, biodiesel (FAME) derived from waste cooking oil (B100), 20% biodiesel blended diesel Fuel (B20), renewable diesel Fuel produced in house, and civil aircraft jet Fuel (Jet-A). Droplet diameters and particle size distributions were measured by a laser diffraction particle analyzing System and the spray tip penetrations and cone angles were acquired using a high speed imaging technique. All experiments were conducted by employing a common-rail high-pressure Fuel Injection System with a single-hole nozzle under room temperature and pressure. The experimental results showed that biodiesel and jet Fuel had different features compared with diesel. Longer spray tip penetration and larger droplet diameters were observed for B100. The smaller droplet size of the Jet-A were believed to be caused by its relatively lower viscosity and surface tension. B20 showed similar characteristics to diesel but with slightly larger droplet sizes and shorter tip penetration. Renewable diesel Fuel showed closer droplet size and spray penetration to Jet-A with both smaller than diesel. As a result, optimizing the trade-off between spray volume and droplet size for different Fuels remains a great challenge. However, high-pressure Injection helps to optimize the trade-off of spray volume and droplet sizes. Furthermore, it was observed that the smallest droplets were within a region near the injector nozzle tip and grew larger along the axial and radial direction. The variation of droplet diameters became smaller with increasing Injection pressure.
