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- 저자 : Guorong Zhu (검색결과 5 건)
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The influence factors on CeSn0.8W0.6Ox/TiO2 for catalytic removals of NO, CO and C3H8
Guorong Sui,Zhiwei Xue,Dan Zhou,Yan Wang,Yuesong Shen,Yuhao Zong,Youlin Liu,Tai Qiu,Shemin Zhu 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.51 No.-
Series of CeSn0.8W0.6Ox/TiO2 catalysts were tested for selective catalytic reduction of NO and forsynergistic catalytic removals of CO and C3H8 from diesel engine exhaust. Results revealed that catalyst12%-CeSn0.8W0.6Ox/TiO2 calcined at 500 C exhibited the optimal catalytic performance for NH3-SCR ofNO. The catalyst obtained more than 90% NO conversion at a wide temperature range of 252–456 C. BothCO and C3H8 could be oxidized into CO2 by the optimized catalyst. Moreover, excellent redox property,rich surface acidity and big specific surface area were the promotional factors for good catalyticperformance in catalytic removals of NO, CO and C3H8.
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Ying Cao,Aoqi Zhu,Jianmin He,Jianhua Wu,Mingjin Xue,Yiting Xu,Birong Zeng,Guorong Chen,Lizong Dai 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.115 No.-
A novel kind of core cross-linked assemblies formed from a ‘‘semi-amphiphilic” block copolymer, poly(syringaldehyde methacrylate)-block-poly (dopamine methacrylate-co-methyl methacrylate-costyrene)(PSMA-b-P(DMA-co-MMA-co-St)), was designed and served as the carrier for anti-corrosiveand corrosion detective molecules. Different from the core cross-linked micelles formed by the amphiphilicpolymers in water, the core cross-linked assemblies in this research were formed from the ‘‘semiamphiphilic”block copolymer, which took advantage of the different compatibility between epoxy andthe blocks in the polymer, leading to the self-assembly behavior happening in the organic resin, whilethey shared the advantages of traditional core cross-linked micelles with the properties of being stable,stimuli-responsive and multifunctional. The pH-responsive properties of the assemblies and their complexationwith Fe3+ caused by the corrosion of the steel were confirmed by UV spectrophotometry andXPS analysis of the corrosive products. The controlled release of corrosion inhibitors was fully reflectedby the expansion of the capacitor ring and the increase of the coating resistance (Rc) with the extensionof the immersion time, which was got via fitting the electrochemical impedance spectroscopy (EIS) datawith the equivalent electric circuits. Ultimately, the anti-corrosive mechanism of smart coating with thefunctional core cross-linked assemblies were also illustrated.
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Power Sharing Strategy of A Series-parallel-connected EV Charger
Guozhen Hu,Huang Lei,Xuejun Ma,Guorong Zhu 전력전자학회 2015 ICPE(ISPE)논문집 Vol.2015 No.6
In order to meet different requirements of rechargeable batteries in Electric vehicles, a charger with hybrid structure, which designed as module and combined in series and parallel, was proposed in this paper. Each individual module uses ZCS phase-shifted full-bridge converters. And in order to ensure power sharing of each module, the outer loop power control strategy based on average current sharing method has been adopted. A combination prototype was built following the proposed strategy. Experimental results verify the correctness of the proposed scheme and the performance of power sharing system can meet the charging application.
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Efficiency Analysis in IPT System Based on LCC Compensation Network
Yatao Shou,Bingyang Luo,Song Xiong,GuoRong Zhu,JiangHua Lu,Jing V. WANG 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
The efficiency of inductive power transfer (IPT) system is highly related to the conditions of load and the compensation network. Combined with lithium battery charging characteristic, the transfer efficiency exhibits sharply decreasing in constant voltage (CV) mode in wireless electric vehicle (EV) charging system. This paper compares the light-load efficiency between LCC-Series (LCC-S) and LCC-Parallel (LCC-P) compensation networks under constant voltage (CV) charging mode. An efficiency optimization method is proposed for the LCC-P compensated wireless EV charging system, which is more suitable for the load variation during the constant voltage (CV) charging phase of the lithium battery. After the theoretical analysis is conduced, the MATLAB simulation and experiment were completed to prove the accuracy of the analysis result.
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Ranjith kumar Gatla,Wei Chen,Guorong Zhu,Jing V Wang,Sainadh Singh Kshatri 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
The power semiconductor switches are the most unreliable devices in the Photovoltaic (PV) energy conversion system. Thermal stress is the prime cause behind the power semiconductor switch failure mechanism, the selection of switching strategy and converter topology can have a notable effect on the converter reliability. This paper presents a lifetime comparison of Insulated-Gate Bipolar Transistor (IGBT) modules in three classical multilevel inverter topologies on the basis of power cycling, thermal cycling, and lifetime performance. The electro-thermal analysis has been implemented to identify the amplitude of the temperature swings and mean junction temperature. The Bayer lifetime model is used to evaluate the consumed lifetime of IGBT modules in the multilevel inverters based on the calculation method of numerical junction temperature. The accuracy in lifetime estimation has improved by considering the mission profile. The study shows that the IGBT modules in cascaded H-bridge multilevel inverter have a higher lifetime when compared to the other two classical multilevel inverters
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