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Zhang Qingzhi,Lu Haifeng,Li Yongdong,Chai Jianyun 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
Free Piston Linear Generator (FPLG) is an ideal power resource in Hybrid Electric Vehicle (HEV) for its potential advantages of low friction loss, variable compression ratio, being suitable for various fuels, high thermal efficiency, etc. No FPLG has been successfully applied to an actual vehicle as lack of reliable control. The first part of this paper consists of introduction to FPLG and its research status. Structure and working principle of FPLG are analyzed in the second part. Then the thermodynamic process is analyzed and mathematical models of all kinds of FPLG using real-time motion control strategy based on location domain are established. After these, verifying work of the six different models established before and the realtime control strategy is carried out. Results show that the mathematical models of FPLG based on location domain work well and the control strategy effects with proper linear generator.
Longbin Qi,Yunxia Hu,Qingzhi Chai,Qun Wang 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.72 No.-
The anti-biofouling performance of silver nanoparticles (Ag NPs) modified polyethersulfone (PES)membrane was evaluated during the concentration of fermentation broth. The Ag NPs containingmembrane did not exhibit biofouling mitigation performance during thefirstfiltration cycle, but couldhelp to recover waterflux upon physical cleaning. After threefiltration-clean cycles, the Ag NPscontaining membranes presented higher waterflux and slowerflux decline than the control membraneswithout Ag NPs. Ag NPs on the membrane surface facilitated the effective removal of cake layer. Moreover, the Ag NPs-containing membrane had no negative effects on the activities of bacteria infermentation broth.