In this paper, operation characteristic of condensate polishing system is studied during startup, based on generator blowdown limit, given limit ion concentration in condensate during condenser leakage. Further give c...In this paper, operation characteristic of condensate polishing system is studied during startup, based on generator blowdown limit, given limit ion concentration in condensate during condenser leakage. Further give conclusion about condensate polishing system configuration and operation requirement: full flow condensate polishing system (CPS) is necessary to the units cooled by sea water, and it is better that one or two series put in service during normal operation other than all of them in hot standby. While continuous condensate tube leakage is 256 L/h, the units cooled by fresh water will be shutdown immediately, for this level leakage, whichever condensate polishing system capacity is 50% (30%) or 100%, action level 2 will be preformed, so 50% (30%) is enough for fresh water cooled units.展开更多
A series-parallel hydraulic hybrid system applied to public buses is put torwaro, ano parameters of key components are analyzed and determined. Energy management strategy based on logic thresh- old is designed which i...A series-parallel hydraulic hybrid system applied to public buses is put torwaro, ano parameters of key components are analyzed and determined. Energy management strategy based on logic thresh- old is designed which is aimed at efficient operation of the overall system considering the operational characteristic of the components and taking the curves of engine, hydraulic pump/motor and hydrau- lic pump as the main design basis; regenerative control strategy which makes regenerative brake sys- tem and frictional brake system work harmoniously is designed to raise recovery rate of regenerative brake energy. System dynamic modeling and simulation results show that the energy control strategy designed here is able to adapt system to changes of working condition and switch the operating mode reasonably. The regenerative braking control strategy is effective in raising the utilization of energy and improving fuel economy.展开更多
Hannah Arendt, the new film by the German director Margarethe Von Trotta, does not seem just like another trying to represent philosophy through the classic cinematic storytelling. It builds instead a perfect dialogue...Hannah Arendt, the new film by the German director Margarethe Von Trotta, does not seem just like another trying to represent philosophy through the classic cinematic storytelling. It builds instead a perfect dialogue between these two practices that never encroach each other: There is not any doctrine that prevents cinema's freedom to create images and any philosophy claim that forces cinema to find in images an alternative way of expression. Von Trotta leaves any biopic form and stages a harmonic building where cinema fulfills philosophy and philosophy fulfills cinema. In this way she gets an outright practical exhibition of a theory, the "banality of evil". We want to comprehend the reasons of this perfect building analyzing this film, its characters with their acts, all the images their montage, and editing, everything that supports the Arendt's philosophical notion. We work on the film with the philosophical categories created by Gilles Deleuze to study the history of cinema in two essays, Image-mouvement and Image-time. In this way we can unfold how Margarethe Von Trotta represents a theory through images, without any word as intermediary展开更多
文摘In this paper, operation characteristic of condensate polishing system is studied during startup, based on generator blowdown limit, given limit ion concentration in condensate during condenser leakage. Further give conclusion about condensate polishing system configuration and operation requirement: full flow condensate polishing system (CPS) is necessary to the units cooled by sea water, and it is better that one or two series put in service during normal operation other than all of them in hot standby. While continuous condensate tube leakage is 256 L/h, the units cooled by fresh water will be shutdown immediately, for this level leakage, whichever condensate polishing system capacity is 50% (30%) or 100%, action level 2 will be preformed, so 50% (30%) is enough for fresh water cooled units.
基金Supported by the National Natural Science Foundation of China(No.50875054)Weihai Science and Technology Development Plan Project(No.2012DXGJ13)
文摘A series-parallel hydraulic hybrid system applied to public buses is put torwaro, ano parameters of key components are analyzed and determined. Energy management strategy based on logic thresh- old is designed which is aimed at efficient operation of the overall system considering the operational characteristic of the components and taking the curves of engine, hydraulic pump/motor and hydrau- lic pump as the main design basis; regenerative control strategy which makes regenerative brake sys- tem and frictional brake system work harmoniously is designed to raise recovery rate of regenerative brake energy. System dynamic modeling and simulation results show that the energy control strategy designed here is able to adapt system to changes of working condition and switch the operating mode reasonably. The regenerative braking control strategy is effective in raising the utilization of energy and improving fuel economy.
文摘Hannah Arendt, the new film by the German director Margarethe Von Trotta, does not seem just like another trying to represent philosophy through the classic cinematic storytelling. It builds instead a perfect dialogue between these two practices that never encroach each other: There is not any doctrine that prevents cinema's freedom to create images and any philosophy claim that forces cinema to find in images an alternative way of expression. Von Trotta leaves any biopic form and stages a harmonic building where cinema fulfills philosophy and philosophy fulfills cinema. In this way she gets an outright practical exhibition of a theory, the "banality of evil". We want to comprehend the reasons of this perfect building analyzing this film, its characters with their acts, all the images their montage, and editing, everything that supports the Arendt's philosophical notion. We work on the film with the philosophical categories created by Gilles Deleuze to study the history of cinema in two essays, Image-mouvement and Image-time. In this way we can unfold how Margarethe Von Trotta represents a theory through images, without any word as intermediary