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RISS 인기검색어
- 검색키워드
- 저자 : Seddiek, Ibrahim Sadek (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
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Thermo-economic approach for absorption air condition onboard high-speed crafts
Seddiek, Ibrahim S.,Mosleh, Mosaad,Banawan, Adel A. The Society of Naval Architects of Korea 2012 International Journal of Naval Architecture and Oc Vol.4 No.4
High-speed crafts suffer from losing a huge amount of their machinery energy in the form of heat loss with the exhaust gases. This will surely increase the annual operating cost of this type of ships and an adverse effect on the environment. This paper introduces a suggestion that may contribute to overcoming such problems. It presents the possibility of reusing the energy lost by the ships' exhaust gases as heating source for an absorption air condition unit onboard high-speed crafts. As a numerical example; the proposed method was investigated at a high-speed craft operating in Red Sea between Egypt and the Kingdom of Saudi Arabia. The results obtained are very satisfactory. It showed the possibility of providing the required ship's air condition cooling load during sailing and in port. Economically, this will reduce the annual ship's operating cost. Moreover, it will achieve a valuable reduction of ship's emissions.
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Eco-friendly selection of ship emissions reduction strategies with emphasis on SOx and NOx emissions
Seddiek, Ibrahim S.,Elgohary, Mohamed M. The Society of Naval Architects of Korea 2014 International Journal of Naval Architecture and Oc Vol.6 No.3
Increasing amounts of ships exhaust gases emitted worldwide forced the International Maritime Organization to issue some restricted maritime legislation for reducing the adverse environmental impacts arising from such emissions. Consequently, ships emission reduction became one of the technical and economical challenges that facing the ships, operators. The present paper addresses the different strategies that can be used to reduce those emissions, especially nitrogen oxides and sulfur oxides. The strategies included: applying reduction technologies onboard, using of alternative fuels, and follows one of fuel saving strategies. Using of selective catalytic reduction and sea water scrubbing appeared as the best reduction technologies onboard ships. Moreover, among the various proposed alternative fuels, natural gas, in its liquid state; has the priority to be used instead of conventional fuels. Applying one of those strategies is the matter of ship type and working area. As a numerical example, the proposed methods were investigated at a high-speed craft operating in the Red Sea area between Egypt and the Kingdom of Saudi Arabia. The results obtained are very satisfactory from the point of view of environment and economic issues, and reflected the importance of applying those strategies.
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Eco-friendly selection of ship emissions reduction strategies with emphasis on SOx and NOx emissions
Ibrahim S. Seddiek,Mohamed M. Elgohary 대한조선학회 2014 International Journal of Naval Architecture and Oc Vol.6 No.3
Increasing amounts of ships exhaust gases emitted worldwide forced the International Maritime Orga-nization to issue some restricted maritime legislation for reducing the adverse environmental impacts arising from such emissions. Consequently, ships emission reduction became one of the technical and economical challenges that facing the ships, operators. The present paper addresses the different strategies that can be used to reduce those emissions, especially nitrogen oxides and sulfur oxides. The strategies included: applying reduction technologies onboard, using of alternative fuels, and follows one of fuel saving strategies. Using of selective catalytic reduction and sea water scrub-bing appeared as the best reduction technologies onboard ships. Moreover, among the various proposed alternative fuels, natural gas, in its liquid state; has the priority to be used instead of conventional fuels. Applying one of those strategies is the matter of ship type and working area. As a numerical example, the proposed methods were investigated at a high-speed craft operating in the Red Sea area between Egypt and the Kingdom of Saudi Arabia. The results ob-tained are very satisfactory from the point of view of environment and economic issues, and reflected the importance of applying those strategies.
-
Thermo-economic approach for absorption air condition onboard high-speed crafts
Ibrahim S. Seddiek,Mosaad Mosleh,Adel A. Banawan 대한조선학회 2012 International Journal of Naval Architecture and Oc Vol.4 No.4
High-speed crafts suffer from losing a huge amount of their machinery energy in the form of heat loss with the exhaust gases. This will surely increase the annual operating cost of this type of ships and an adverse effect on the environment. This paper introduces a suggestion that may contribute to overcoming such problems. It presents the possibility of reusing the energy lost by the ships' exhaust gases as heating source for an absorption air condition unit onboard high-speed crafts. As a numerical example; the proposed method was investigated at a high-speed craft operating in Red Sea between Egypt and the Kingdom of Saudi Arabia. The results obtained are very satisfactory. It showed the possibility of providing the required ship's air condition cooling load during sailing and in port. Econo-mically, this will reduce the annual ship's operating cost. Moreover, it will achieve a valuable reduction of ship's emissions.
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Utilization of alternative marine fuels for gas turbine power plant onboard ships
El Gohary, M. Morsy,Seddiek, Ibrahim Sadek The Society of Naval Architects of Korea 2013 International Journal of Naval Architecture and Oc Vol.5 No.1
Marine transportation industry is undergoing a number of problems. Some of these problems are associated with conventional marine fuel-oils. Many researchers have showed that fuel-oil is considered as the main component that causes both environmental and economic problems, especially with the continuous rising of fuel cost. This paper investigates the capability of using natural gas and hydrogen as alternative fuel instead of diesel oil for marine gas turbine, the effect of the alternative fuel on gas turbine thermodynamic performance and the employed mathematical model. The results showed that since the natural gas is categorized as hydrocarbon fuel, the thermodynamic performance of the gas turbine cycle using the natural gas was found to be close to the diesel case performance. The gas turbine thermal efficiency was found to be 1% less in the case of hydrogen compared to the original case of diesel.
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Utilization of alternative marine fuels for gas turbine power plant onboard ships
M. Morsy El Gohary,Ibrahim Sadek Seddiek 대한조선학회 2013 International Journal of Naval Architecture and Oc Vol.5 No.1
Marine transportation industry is undergoing a number of problems. Some of these problems are associated with conventional marine fuel-oils. Many researchers have showed that fuel-oil is considered as the main component that causes both environmental and economic problems, especially with the continuous rising of fuel cost. This paper investigates the capability of using natural gas and hydrogen as alternative fuel instead of diesel oil for marine gas turbine, the effect of the alternative fuel on gas turbine thermodynamic performance and the employed mathematical model. The results showed that since the natural gas is categorized as hydrocarbon fuel, the thermodynamic performance of the gas turbine cycle using the natural gas was found to be close to the diesel case performance. The gas turbine thermal efficiency was found to be 1% less in the case of hydrogen compared to the original case of diesel.
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