The Experts below are selected from a list of 567063 Experts worldwide ranked by ideXlab platform
Moonyong Lee - One of the best experts on this subject based on the ideXlab platform.
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closed loop self cooling recuperative n2 expander cycle for the energy efficient and ecological natural gas liquefaction process
ACS Sustainable Chemistry & Engineering, 2018Co-Authors: Muhammad Abdul Qyyum, Kinza Qadee, Moonyong LeeAbstract:Liquefied natural gas (LNG) has attracted global attention as a more environmentally friendly energy source when compared to other fossil fuels. The nitrogen (N2) expander liquefaction is the most green and safe process among the different types of commercial natural gas liquefaction processes, but its relatively low energy efficiency is a major issue. In this study, an innovative closed-loop self-cooling recuperation Technology was Proposed to reduce the exergy losses of the N2 expander LNG process. The LNG process with the implementation of the Proposed Technology was modeled using a commercial process simulation tool, ASPEN HYSYS v9. Subsequently, a modified coordinate descent optimization algorithm was employed to achieve maximum potential benefits of the Proposed Technology. The energy efficiency of the Proposed LNG process was further improved by energy recovery from end flash gas and high-pressure natural gas feed. Finally, the energy efficiency of the Proposed closed-loop self-cooling recuperative...
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Closed-Loop Self-Cooling Recuperative N2 Expander Cycle for the Energy Efficient and Ecological Natural Gas Liquefaction Process
2018Co-Authors: Muhammad Abdul Qyyum, Kinza Qadee, Moonyong LeeAbstract:Liquefied natural gas (LNG) has attracted global attention as a more environmentally friendly energy source when compared to other fossil fuels. The nitrogen (N2) expander liquefaction is the most green and safe process among the different types of commercial natural gas liquefaction processes, but its relatively low energy efficiency is a major issue. In this study, an innovative closed-loop self-cooling recuperation Technology was Proposed to reduce the exergy losses of the N2 expander LNG process. The LNG process with the implementation of the Proposed Technology was modeled using a commercial process simulation tool, ASPEN HYSYS v9. Subsequently, a modified coordinate descent optimization algorithm was employed to achieve maximum potential benefits of the Proposed Technology. The energy efficiency of the Proposed LNG process was further improved by energy recovery from end flash gas and high-pressure natural gas feed. Finally, the energy efficiency of the Proposed closed-loop self-cooling recuperative N2 expander LNG process was significantly improved up to 80.5% compared to the existing N2 expander based LNG processes, depending on the feed natural gas conditions, composition, and design parameters
Muhammad Abdul Qyyum - One of the best experts on this subject based on the ideXlab platform.
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closed loop self cooling recuperative n2 expander cycle for the energy efficient and ecological natural gas liquefaction process
ACS Sustainable Chemistry & Engineering, 2018Co-Authors: Muhammad Abdul Qyyum, Kinza Qadee, Moonyong LeeAbstract:Liquefied natural gas (LNG) has attracted global attention as a more environmentally friendly energy source when compared to other fossil fuels. The nitrogen (N2) expander liquefaction is the most green and safe process among the different types of commercial natural gas liquefaction processes, but its relatively low energy efficiency is a major issue. In this study, an innovative closed-loop self-cooling recuperation Technology was Proposed to reduce the exergy losses of the N2 expander LNG process. The LNG process with the implementation of the Proposed Technology was modeled using a commercial process simulation tool, ASPEN HYSYS v9. Subsequently, a modified coordinate descent optimization algorithm was employed to achieve maximum potential benefits of the Proposed Technology. The energy efficiency of the Proposed LNG process was further improved by energy recovery from end flash gas and high-pressure natural gas feed. Finally, the energy efficiency of the Proposed closed-loop self-cooling recuperative...
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Closed-Loop Self-Cooling Recuperative N2 Expander Cycle for the Energy Efficient and Ecological Natural Gas Liquefaction Process
2018Co-Authors: Muhammad Abdul Qyyum, Kinza Qadee, Moonyong LeeAbstract:Liquefied natural gas (LNG) has attracted global attention as a more environmentally friendly energy source when compared to other fossil fuels. The nitrogen (N2) expander liquefaction is the most green and safe process among the different types of commercial natural gas liquefaction processes, but its relatively low energy efficiency is a major issue. In this study, an innovative closed-loop self-cooling recuperation Technology was Proposed to reduce the exergy losses of the N2 expander LNG process. The LNG process with the implementation of the Proposed Technology was modeled using a commercial process simulation tool, ASPEN HYSYS v9. Subsequently, a modified coordinate descent optimization algorithm was employed to achieve maximum potential benefits of the Proposed Technology. The energy efficiency of the Proposed LNG process was further improved by energy recovery from end flash gas and high-pressure natural gas feed. Finally, the energy efficiency of the Proposed closed-loop self-cooling recuperative N2 expander LNG process was significantly improved up to 80.5% compared to the existing N2 expander based LNG processes, depending on the feed natural gas conditions, composition, and design parameters
Yiping Wang - One of the best experts on this subject based on the ideXlab platform.
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automatic arc discharge induced helical long period fiber gratings and its sensing applications
IEEE Photonics Technology Letters, 2017Co-Authors: Bing Sun, Changrui Liao, Wei Wei, Lin Zhang, Zuxing Zhang, Mingyang Chen, Yiping WangAbstract:We experimentally demonstrate an automatic arc discharge Technology for inscribing high-quality helically twisted long period fiber gratings (H-LPFGs) with greatly improved inscription efficiency for single mode fibers. The Proposed Technology has been developed by implementing an embedded program in a commercial fusion splicer, which employs an ultraprecision motorized translation stage while the tensioning mass required by conventional inscribing Technology is eliminated. More significantly, the arc-induced H-LPFGs have been reported to have potential usage as sensors in temperature, refractive index, twist stress, and strain.
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automatic arc discharge Technology for inscribing long period fiber gratings
Applied Optics, 2016Co-Authors: Guolu Yin, Jian Tang, Changrui Liao, Yiping WangAbstract:We experimentally demonstrate an automatic arc discharge Technology for inscribing high-quality long period fiber gratings (LPFGs) with greatly improved inscription efficiency for single mode fiber (SMF) and photonic crystal fiber (PCF). The Proposed Technology was developed by implementing an embedded program in a commercial fusion splicer. In addition, the improved Technology employs an ultraprecision motorized translation stage, and the tensioning mass required by conventional Technology was eliminated. While hundreds of arc discharges are generally required by conventional Technology, only 30 and 60 arc discharges were required to inscribe LPFGs with dip attenuations of 30 and 20 dB for SMF and PCF, respectively.
Kinza Qadee - One of the best experts on this subject based on the ideXlab platform.
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closed loop self cooling recuperative n2 expander cycle for the energy efficient and ecological natural gas liquefaction process
ACS Sustainable Chemistry & Engineering, 2018Co-Authors: Muhammad Abdul Qyyum, Kinza Qadee, Moonyong LeeAbstract:Liquefied natural gas (LNG) has attracted global attention as a more environmentally friendly energy source when compared to other fossil fuels. The nitrogen (N2) expander liquefaction is the most green and safe process among the different types of commercial natural gas liquefaction processes, but its relatively low energy efficiency is a major issue. In this study, an innovative closed-loop self-cooling recuperation Technology was Proposed to reduce the exergy losses of the N2 expander LNG process. The LNG process with the implementation of the Proposed Technology was modeled using a commercial process simulation tool, ASPEN HYSYS v9. Subsequently, a modified coordinate descent optimization algorithm was employed to achieve maximum potential benefits of the Proposed Technology. The energy efficiency of the Proposed LNG process was further improved by energy recovery from end flash gas and high-pressure natural gas feed. Finally, the energy efficiency of the Proposed closed-loop self-cooling recuperative...
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Closed-Loop Self-Cooling Recuperative N2 Expander Cycle for the Energy Efficient and Ecological Natural Gas Liquefaction Process
2018Co-Authors: Muhammad Abdul Qyyum, Kinza Qadee, Moonyong LeeAbstract:Liquefied natural gas (LNG) has attracted global attention as a more environmentally friendly energy source when compared to other fossil fuels. The nitrogen (N2) expander liquefaction is the most green and safe process among the different types of commercial natural gas liquefaction processes, but its relatively low energy efficiency is a major issue. In this study, an innovative closed-loop self-cooling recuperation Technology was Proposed to reduce the exergy losses of the N2 expander LNG process. The LNG process with the implementation of the Proposed Technology was modeled using a commercial process simulation tool, ASPEN HYSYS v9. Subsequently, a modified coordinate descent optimization algorithm was employed to achieve maximum potential benefits of the Proposed Technology. The energy efficiency of the Proposed LNG process was further improved by energy recovery from end flash gas and high-pressure natural gas feed. Finally, the energy efficiency of the Proposed closed-loop self-cooling recuperative N2 expander LNG process was significantly improved up to 80.5% compared to the existing N2 expander based LNG processes, depending on the feed natural gas conditions, composition, and design parameters
Changrui Liao - One of the best experts on this subject based on the ideXlab platform.
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automatic arc discharge induced helical long period fiber gratings and its sensing applications
IEEE Photonics Technology Letters, 2017Co-Authors: Bing Sun, Changrui Liao, Wei Wei, Lin Zhang, Zuxing Zhang, Mingyang Chen, Yiping WangAbstract:We experimentally demonstrate an automatic arc discharge Technology for inscribing high-quality helically twisted long period fiber gratings (H-LPFGs) with greatly improved inscription efficiency for single mode fibers. The Proposed Technology has been developed by implementing an embedded program in a commercial fusion splicer, which employs an ultraprecision motorized translation stage while the tensioning mass required by conventional inscribing Technology is eliminated. More significantly, the arc-induced H-LPFGs have been reported to have potential usage as sensors in temperature, refractive index, twist stress, and strain.
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automatic arc discharge Technology for inscribing long period fiber gratings
Applied Optics, 2016Co-Authors: Guolu Yin, Jian Tang, Changrui Liao, Yiping WangAbstract:We experimentally demonstrate an automatic arc discharge Technology for inscribing high-quality long period fiber gratings (LPFGs) with greatly improved inscription efficiency for single mode fiber (SMF) and photonic crystal fiber (PCF). The Proposed Technology was developed by implementing an embedded program in a commercial fusion splicer. In addition, the improved Technology employs an ultraprecision motorized translation stage, and the tensioning mass required by conventional Technology was eliminated. While hundreds of arc discharges are generally required by conventional Technology, only 30 and 60 arc discharges were required to inscribe LPFGs with dip attenuations of 30 and 20 dB for SMF and PCF, respectively.
