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| 1 | Energy internet technology:modeling,optimization and dispatch of integrated energy systems显示文摘With the rapid development of the information technology and the application of renewable energy,the energy internet,which has been widely accepted as a means of integrating energy flow,information flow,and business flow,is prone to be the future form of energy system. However,it is a new system,never existed in human history.Therefore,from philosophical imagination to engineering realization,there are many scientific and technical problems,waiting to be solved.The purpose of this special issue is to demonstrate the recent research works on energy internet,as well as some proposals and suggestions to decision makers for strategic planning. | Shilie WENG Chenghong GU Yiwu WENG | 2018 | Frontiers in Energy2018，12，4： | 1 |
| 2 | Technological development of multi-energy complementary system based on solar PVs and MGT显示文摘The complementary micro-energy network system consisting of solar photovoltaic power generation (solar PVs)and micro-gas turbine (MGT),which not only improves the absorption rate and reliability ofphotovoltaic power,but also has the advantages of low emission,high efficiency,and good fuel adaptability,has become one of the most promising distributed power systems in the field of micro grid.According to the development of current technology and the demand of actual work,this research described the domestic and foreign development of microenergy network system based on solar PVs and MGT. Moreover,it analyzed the challenges and future development regarding the micro-energy network system in planning and design,energy utilization optimization and dispatching management,and system maintenance,respectively.Furthermore,it predicted the future development of the key technology of the multi-energy complementary system.These results will be beneficial for the progress of this field both in theory and practice. | Xiaojing LV Yu WENG Xiaoyi DING Shilie WENG Yiwu WENG | 2018 | Frontiers in Energy2018，12，4： | 1 |
| 3 | Performance analysis of pressurized molten carbonate fuel cell-micro-gas tur- bine hybrid system 显示文摘 | Liu Aiguo Weng Yiwu | 2010 | Journal of Power Sources2010，195，1： | 1 |
| 4 | Modeling of molten carbonate fuel cell based on the volumeresistance characteristics and experimental analysis显示文摘 | Liu Aiguo Weng Yiwu | | 0，，02： | 1 |
| 5 | Thermodynamic characteristics of a low concentration methane catalytic combustion gas turbine显示文摘 | Juan Yin Shi Su Xin Xiang Yu Yiwu Weng | 2009 | Applied Energy2009，，6： | 1 |
| 6 | Investigation of combustion and thermody- namic performance of a lean burn catalytic combustion gas tur- bine system 显示文摘 | Yin Juan Weng Yiwu | 2011 | Energy Conversion and Management2011，52，3： | 1 |
| 7 | Experimental investigation of a novel micro gas turbine with flexible switching function for distributed power system显示文摘Micro gas turbine(MGT)is widely used in small-scale distributed power systems because of its low emissions and fuel flexibility.However,the under-utilization of its exhaust heat and the low electric efficiency are the main bottlenecks that restrict its application.Additionally,the flexible switching between the power generated by the MGT and the power grid is also a key factor for keeping the secure operation of a distributed power station.Therefore,this paper conducted some experimental investigations of a 30 kW MGT to provide reference solutions for the above issues.This MGT is located at Shanghai Jiao Tong University(SJTU),which is designed by the Gas Turbine Research Institute of SJTU,and is manufactured by a turbo machinery factory in Chongqing,China.The demonstration prototype is mainly composed of a single stage centrifugal compressor,a radial turbine,a combustor,a high-speed pennanent magnet generator,and a control system.The results show that the MGT can achieve steady operation at a low rotational speed from 10000 r/min to 34000 r/min in the case of using oil lubricated bearings,which can greatly reduce the economic cost compared with the use of air bearings.At the same time,the ignition success rate of combustion chamber(CC)reaches 98%at a low rotational speed,and a wide range of stable combustion area can be obtained,because of the novel design method of combustor by referencing the way applied in an axial flow aero-engine.The MGT generating set can achieve functions,such as starting up,ignition,stable operation,loaded operation,grid-connection and stopping.This system also can realize flexibly switching from the start motor mode to the generator mode,and from grid-connected mode to off^grid mode,because the innovative multi-state switching control system is adopted.The above research work can make our state master independent intellectual property rights of micro gas turbine,rather than continue to be subject to the technological monopoly of the developed states,which can provide theoretical and experimental support for the industrialization of MGT in China. | Xiaojing LV Weilun ZENG Xiaoyi DING Yiwu WENG Shilie WENG | 2020 | Frontiers in Energy2020，14，4： | 1 |
| 8 | Performance analysis of cogeneration systems based on micro gas turbine(MGT),organic Rankine cycle and ejector refrigeration cycle显示文摘In this paper,the operation perfonnance of three novel kinds of cogeneration systems under design and off-design condition was investigated.The systems are MGT(micro gas turbine)+ORC(organic Rankine cycle)for electricity demand,MGT+ERC(ejector refrigeration cycle)for electricity and cooling demand,and MGT+ORC+ERC for electricity and cooling demand.The effect of 5 different working fluids on cogeneration systems was studied.The results show that under the design condition,when using R600 in the bottoming cycle,the MGT+ORC system has the lowest total output of 117.1 kW with a thermal efficiency of 0.334,and the MGT+ERC system has the largest total output of 142.6 kW with a thermal efficiency of 0.408.For the MGT+ORC+ERC system,the total output is between the other two systems,which is 129.3 kW with a thermal efficiency of 0.370.For the effect of different working fluids,R123 is the most suitable working fluid for MGT+ORC with the maximum electricity output power and R600 is the most suitable working fluid for MGT+ERC with the maximum cooling capacity,while both R600 and R123 can make MGT+ORC+ERC achieve a good comprehensive performance of refrigeration and electricity.The thermal efficiency of three cogeneration systems can be effectively improved under oredesign condition because the bottoming cycle can compensate for the power decrease of MGT.The results obtained in this paper can provide a reference for the design and operation of the cogeneration system for distributed energy systems(DES). | Zemin BO Kai ZHANG Peijie SUN Xiaojing LV Yiwu WENG | 2019 | Frontiers in Energy2019，13，1： | 0 |
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