The Experts below are selected from a list of 57 Experts worldwide ranked by ideXlab platform
Mohand Tazerout - One of the best experts on this subject based on the ideXlab platform.
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experimental investigation on ng dual fuel Engine Improvement by hydrogen enrichment
International Journal of Hydrogen Energy, 2014Co-Authors: Mohand Said Lounici, Asma Boussadi, Khaled Loubar, Mohand TazeroutAbstract:Abstract The crude oil graduate depletion, as well as aspects related to environmental pollution and global warming instigated many researches concerning alternative fuels. Natural gas (NG) is one of the most attractive available fuels. A promising technique for its use in internal combustion Engines is the dual fuel concept. One of the main problems with this technique is that, at low loads, the Engine efficiency decreases compared to conventional diesel. The unburned hydrocarbons and carbon monoxide emissions are also higher in dual fuel mode. An effective method to compensate the demerits of limited lean-burn ability and slow burning velocity of NG is to mix it with a fuel that possesses wide flammability limit and fast burning velocity. Hydrogen (H 2 ) is thought to be the best gaseous candidate for natural gas. In the present work, NG enrichment with various H 2 blends is investigated as a technique for improving dual fuel mode, especially at low loads. Impact on Engine performance and emissions is experimentally examined. Total BSFC is considerably reduced. An important benefit in terms of BTE, reaching to increase a 12% with the 10%H 2 blend compared to the pure NG case, is also achieved. THC and CO emissions are in general reduced as a result of the Improvement of gaseous fuel utilization. CO 2 emissions are also in general reduced. Even though a slight increase is in overall observed for NO x emissions, it's almost insignificant.
Mohand Said Lounici - One of the best experts on this subject based on the ideXlab platform.
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experimental investigation on ng dual fuel Engine Improvement by hydrogen enrichment
International Journal of Hydrogen Energy, 2014Co-Authors: Mohand Said Lounici, Asma Boussadi, Khaled Loubar, Mohand TazeroutAbstract:Abstract The crude oil graduate depletion, as well as aspects related to environmental pollution and global warming instigated many researches concerning alternative fuels. Natural gas (NG) is one of the most attractive available fuels. A promising technique for its use in internal combustion Engines is the dual fuel concept. One of the main problems with this technique is that, at low loads, the Engine efficiency decreases compared to conventional diesel. The unburned hydrocarbons and carbon monoxide emissions are also higher in dual fuel mode. An effective method to compensate the demerits of limited lean-burn ability and slow burning velocity of NG is to mix it with a fuel that possesses wide flammability limit and fast burning velocity. Hydrogen (H 2 ) is thought to be the best gaseous candidate for natural gas. In the present work, NG enrichment with various H 2 blends is investigated as a technique for improving dual fuel mode, especially at low loads. Impact on Engine performance and emissions is experimentally examined. Total BSFC is considerably reduced. An important benefit in terms of BTE, reaching to increase a 12% with the 10%H 2 blend compared to the pure NG case, is also achieved. THC and CO emissions are in general reduced as a result of the Improvement of gaseous fuel utilization. CO 2 emissions are also in general reduced. Even though a slight increase is in overall observed for NO x emissions, it's almost insignificant.
V. I. Bogdanov - One of the best experts on this subject based on the ideXlab platform.
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concepts of gas turbine Engine Improvement through the use of choked flow turbines
Russian Aeronautics, 2018Co-Authors: V. I. BogdanovAbstract:The new conceptual design of simple gas turbine Engines for different purposes is presented. A choked-flow low-pressure turbine is used that allows reducing the number of stages and gas temperature in the relative motion ahead of blades. Application of such turbines with uncooled blades to reduce the cost of power-limited Engines is considered.
Khaled Loubar - One of the best experts on this subject based on the ideXlab platform.
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experimental investigation on ng dual fuel Engine Improvement by hydrogen enrichment
International Journal of Hydrogen Energy, 2014Co-Authors: Mohand Said Lounici, Asma Boussadi, Khaled Loubar, Mohand TazeroutAbstract:Abstract The crude oil graduate depletion, as well as aspects related to environmental pollution and global warming instigated many researches concerning alternative fuels. Natural gas (NG) is one of the most attractive available fuels. A promising technique for its use in internal combustion Engines is the dual fuel concept. One of the main problems with this technique is that, at low loads, the Engine efficiency decreases compared to conventional diesel. The unburned hydrocarbons and carbon monoxide emissions are also higher in dual fuel mode. An effective method to compensate the demerits of limited lean-burn ability and slow burning velocity of NG is to mix it with a fuel that possesses wide flammability limit and fast burning velocity. Hydrogen (H 2 ) is thought to be the best gaseous candidate for natural gas. In the present work, NG enrichment with various H 2 blends is investigated as a technique for improving dual fuel mode, especially at low loads. Impact on Engine performance and emissions is experimentally examined. Total BSFC is considerably reduced. An important benefit in terms of BTE, reaching to increase a 12% with the 10%H 2 blend compared to the pure NG case, is also achieved. THC and CO emissions are in general reduced as a result of the Improvement of gaseous fuel utilization. CO 2 emissions are also in general reduced. Even though a slight increase is in overall observed for NO x emissions, it's almost insignificant.
Asma Boussadi - One of the best experts on this subject based on the ideXlab platform.
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experimental investigation on ng dual fuel Engine Improvement by hydrogen enrichment
International Journal of Hydrogen Energy, 2014Co-Authors: Mohand Said Lounici, Asma Boussadi, Khaled Loubar, Mohand TazeroutAbstract:Abstract The crude oil graduate depletion, as well as aspects related to environmental pollution and global warming instigated many researches concerning alternative fuels. Natural gas (NG) is one of the most attractive available fuels. A promising technique for its use in internal combustion Engines is the dual fuel concept. One of the main problems with this technique is that, at low loads, the Engine efficiency decreases compared to conventional diesel. The unburned hydrocarbons and carbon monoxide emissions are also higher in dual fuel mode. An effective method to compensate the demerits of limited lean-burn ability and slow burning velocity of NG is to mix it with a fuel that possesses wide flammability limit and fast burning velocity. Hydrogen (H 2 ) is thought to be the best gaseous candidate for natural gas. In the present work, NG enrichment with various H 2 blends is investigated as a technique for improving dual fuel mode, especially at low loads. Impact on Engine performance and emissions is experimentally examined. Total BSFC is considerably reduced. An important benefit in terms of BTE, reaching to increase a 12% with the 10%H 2 blend compared to the pure NG case, is also achieved. THC and CO emissions are in general reduced as a result of the Improvement of gaseous fuel utilization. CO 2 emissions are also in general reduced. Even though a slight increase is in overall observed for NO x emissions, it's almost insignificant.