|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Entransy dissipation number and its application to heat exchanger performance evaluation显示文摘Based on the concept of the entransy which characterizes heat transfer ability, a new heat exchanger performance evaluation criterion termed the entransy dissipation number is established. Our analysis shows that the decrease of the entransy dissipation number always increases the heat exchanger effectiveness for fixed heat capacity rate ratio. Therefore, the smaller the entransy dissipation number, the better the heat exchanger performance is. The entransy dissipation number in terms of the number of exchanger heat transfer units or heat capacity rate ratio correctly exhibits the global performance of the counter-, cross-and parallel-flow heat exchangers. In comparison with the heat exchanger performance evaluation criteria based on entropy generation, the entransy dissipation number demon-strates some distinct advantages. Furthermore, the entransy dissipation number reflects the degree of irreversibility caused by flow imbalance. | GUO JiangFeng CHENG Lin XU MingTian | 2009 | Chinese Science Bulletin2009，54，15： | 58 |
| 2 | Principle of equipartition of entransy dissipation for heat exchanger design显示文摘In the present work,a principle of equipartition of entransy dissipation(EoED) for heat exchanger design is established,which says that for a heat exchanger design with given heat duty and heat transfer area,the total entransy dissipation rate reaches the minimum when the local entransy dissipation rate is uniformly distributed along the heat exchanger.When the heat transfer coefficient is unfixed,the total entransy dissipation obtained by the EoED principle is less than that obtained by the principle of equipartition of temperature difference(EoTD).Furthermore,the exchanger effectiveness obtained by the EoED principle is larger than that obtained by the EoTD principle.When the heat transfer coefficient is fixed,the EoED principle is equivalent to the EoTD principle.We show that the equipartition of entropy production(EoEP) and EoED principles give rise to difference in entropy generation and entransy dissipation for a heat exchanger optimization design.The discrepancies are caused by distinct features of entropy production minimization and entransy dissipation minimization principles,the former is to optimize the design of heat exchanger by making the lost available work minimum,while the latter is not involved with heat-work conversion.It is found that the entropy generation number is not suitable for evaluating heat exchanger performance,since it directly depends on the inlet and outlet temperatures of working fluids.On the contrary,the entransy dissipation number is not directly related to the inlet and outlet temperatures of working fluids.Therefore,the entransy dissipation number is more suitable for serving as a criterion to evaluate heat exchanger performance. | GUO JiangFeng,XU MingTian & CHENG Lin Institute of Thermal Science and Technology,Shandong University,Jinan 250061,China | 2010 | Science China(Technological Sciences)2010，53，5： | 46 |
| 3 | Entransy dissipation minimization for optimization of heat exchanger design显示文摘In this paper,by taking the water-water balanced counterflow heat exchanger as an example,the entransy dissipation theory is applied to optimizing the design of heat exchangers.Under certain conditions,the optimal duct aspect ratio is determined analytically.When the heat transfer area or the duct volume is fixed,analytical expressions of the optimal mass velocity and the minimal entransy dissipation rate are obtained.These results show that to reduce the irreversible dissipation in heat exchangers,the heat exchange area should be enlarged as much as possible,while the mass velocity should be reduced as low as possible. | LI XueFang GUO JiangFeng XU MingTian CHENG Lin | 2011 | Chinese Science Bulletin2011，56，20： | 16 |
| 4 | Application of a Bayesian method to data-poor stock assessment by using Indian Ocean albacore (Thunnus alalunga) stock assessment as an example显示文摘It is widely recognized that assessments of the status of data-poor fish stocks are challenging and that Bayesian analysis is one of the methods which can be used to improve the reliability of stock assessments in data-poor situations through borrowing strength from prior information deduced from species with good-quality data or other known information. Because there is considerable uncertainty remaining in the stock assessment of albacore tuna(Thunnus alalunga) in the Indian Ocean due to the limited and low-quality data, we investigate the advantages of a Bayesian method in data-poor stock assessment by using Indian Ocean albacore stock assessment as an example. Eight Bayesian biomass dynamics models with different prior assumptions and catch data series were developed to assess the stock. The results show(1) the rationality of choice of catch data series and assumption of parameters could be enhanced by analyzing the posterior distribution of the parameters;(2) the reliability of the stock assessment could be improved by using demographic methods to construct a prior for the intrinsic rate of increase(r). Because we can make use of more information to improve the rationality of parameter estimation and the reliability of the stock assessment compared with traditional statistical methods by incorporating any available knowledge into the informative priors and analyzing the posterior distribution based on Bayesian framework in data-poor situations, we suggest that the Bayesian method should be an alternative method to be applied in data-poor species stock assessment, such as Indian Ocean albacore. | GUAN Wenjiang TANG Lin ZHU Jiangfeng TIAN Siquan XU Liuxiong | 2016 | Acta Oceanologica Sinica2016，35，2： | 13 |
| 5 | The influence of viscous heating on the entransy in two-fluid heat exchangers显示文摘In the present work, water and olive oil are taken as working fluids to study the influence of viscous heating on the entransy dissipation caused by heat transfer in two-fluid heat exchangers. The results show that the influence of viscous heating on the entransy loss associated with heat transfer can not be neglected for the liquids having large dynamic viscosity. The viscous heating effect maintains the heat transfer ability of the working fluids, relatively reduces the entransy loss in heat exchangers; the viscous heating effect relatively augments the entropy generation due to heat transfer and the available energy destruction in heat exchangers. For the working fluid having large dynamic viscosity, the increasing rates of the entransy and entropy generation contributed by the viscous heating are even larger than those contributed by heat transfer, when the mass flow rate of working fluid reaches a certain value under the fixed heat transfer area condition. Thus, the entransy loss rate decreases and the growth rate of entropy generation increases as the mass flow rate of the working fluid increases. Under the same other conditions, the heat transfer entransy loss rate and entropy generation rate per unit heat transfer rate obtained when the fluid having a smaller heat capacity rate is cold fluid are less than those obtained when the fluid having a smaller heat capacity rate is hot fluid. | GUO JiangFeng XU MingTian CHENG Lin | 2011 | Science China(Technological Sciences)2011，54，5： | 11 |
| 6 | The entransy dissipation minimization principle under given heat duty and heat transfer area conditions显示文摘Under given heat duty and heat transfer area conditions, the equipartition of the entransy dissipation (EoED) principle, the equipartition of the temperature difference (EoTD) principle, and the equipartition of the heat flux (EoHF) principle are applied to the optimization design of a heat exchanger with a variable heat transfer coefficient. The results show that the difference between the results obtained using the EoED and EoTD principles is very small, far smaller than that between the results obtained using the EoED and EoHF principles. The correct entransy dissipation minimization principle is chosen to optimize the parameters in the hot and cold fluids in a two-fluid heat exchanger, under given heat duty and heat transfer area conditions. The results indicate that the proper choice of the two alternative fluids has an important role in the successful application of the entransy dissipation minimization principle. The fluid that could improve the total heat transfer coefficient should be chosen, or the fluid that makes the temperature profiles of the hot and cold fluids parallel and decreases the temperature difference between the hot and cold fluids after optimization simultaneously, could be the proper one. | GUO JiangFeng XU MingTian CHENG Lin | 2011 | Chinese Science Bulletin2011，56，19： | 10 |
| 7 | Status and development of high-power laser facilities at the NLHPLP显示文摘In this paper, we review the status of the multifunctional experimental platform at the National Laboratory of High Power Laser and Physics(NLHPLP). The platform, including the SG-II laser facility, SG-II 9th beam, SG-II upgrade(SG-II UP) facility, and SG-II 5 PW facility, is operational and available for interested scientists studying inertial confinement fusion(ICF) and a broad range of high-energy-density physics. These facilities can provide important experimental capabilities by combining different pulse widths of nanosecond, picosecond, and femtosecond scales. In addition, the SG-II UP facility, consisting of a single petawatt system and an eight-beam nanosecond system, is introduced including several laser technologies that have been developed to ensure the performance of the facility. Recent developments of the SG-II 5 PW facility are also presented. | Jianqiang Zhu Jian Zhu Xuechun Li Baoqiang Zhu Weixin Ma Xingqiang Lu Wei Fan Zhigang Liu Shenlei Zhou Guang Xu Guowen Zhang Xinglong Xie Lin Yang Jiangfeng Wang Xiaoping Ouyang Li Wang Dawei Li Pengqian Yang Quantang Fan Mingying Sun Chong Liu Dean Liu Yanli Zhang Hua Tao Meizhi Sun Ping Zhu Bingyan Wang Zhaoyang Jiao Lei Ren Daizhong Liu Xiang Jiao Hongbiao Huang Zunqi Lin | 2018 | High Power Laser Science and Engineering2018，6，4： | 8 |
| 8 | Progress of the injection laser system of SG-Ⅱ显示文摘A high power laser system was used to drive the ignition of inertial confinement fusion(ICF), of which the high energy,the uniform focal spot, the accurate laser waveform, and the synchronization between the laser beams are key parameters.To accomplish this, global laser characteristics control should be assured, which was the main purpose of the injection laser system. In this paper, the key technological progress involved in the improvement of the performance of the injection laser of SG-II is reported, including frequency domain control, time domain control, near-field spatial shaping, preamplifier technology, and the optical parametric chirped pulse amplification pump source. | Wei Fan Youen Jiang Jiangfeng Wang Xiaochao Wang Dajie Huang Xinghua Lu Hui Wei Guoyang Li Xue Pan Zhi Qiao Chao Wang He Cheng Peng Zhang Wenfa Huang Zhuli Xiao Shengjia Zhang Xuechun Li Jianqiang Zhu Zunqi Lin | 2018 | High Power Laser Science and Engineering2018，6，2： | 3 |
| 9 | Research on the Remote Data Collection Based SQL Server显示文摘The remote data collection system based on SOL Server database technology was developed by Visual C++and SQL Server database technology together.The Client/Server mode was adopted.The system adopted the database search technologi- cal-ADO to work out the communication procedure of the server.And the old data of corresponding memory units were upgraded by the new data which gathered from PLC through serial port real time in the database.The Client utilizes the network technology and database technology through queries procedure to access the data information in the database.Thus a large number of relevant data that the production line operated were obtained.The goal of understanding operation conditions of product line was achieved through analysis of these data.This system has been debugged by the experiment successfully. | QI Xiangyang~1 LIN Shuzhong~1 CUI Hui~2 WANG Jiangfeng~2 SUN Huilai~1 (1.School of Mechanical & Electronic Engineering,Tianjin Polytechnic University,Tianjin 300160 China, 2.School of Mechanical Engineering,Hebei University of technology,Tianjin 300130,China) | 2006 | 武汉理工大学学报2006，28，S3： | 2 |
| 10 | Parametric optimization and comparative study of organic Rankine cycle (ORC) for low grade waste heat recovery 显示文摘 | Dai Yiping Wang Jiangfeng Gao Lin | 2009 | Energy Conversion and Management2009，50，3： | 1 |
| 11 | Exergy analyses and parametric optimizations for different cogeneration power plants in cement industry显示文摘 | WANG JIANGFENG DAI YIPING GAO LIN | 2009 | Applied Energy2009，86，： | 1 |
| 12 | A new combined cooling, heating and power system driven by solar energy显示文摘 | Jiangfeng Wang Yiping Dai Lin Gao Shaolin Ma | 2009 | Renewable Energy2009，，12： | 1 |
| 13 | Ther- modynamic Analysis of Waste Heat Power Generation System 显示文摘 | GUO JIANGFENG XU MINGTIAN CHENG LIN | 2010 | Energy2010，35，7： | 1 |
| 14 | Numerical investigations of curved square channel from the viewpoint of field synergy principle 显示文摘 | GUO Jiangfeng XU Mingtian CHENG Lin | 2011 | International Journal of Heat and Mass Transfer2011，54，1718： | 1 |
| 15 | Exergy analyses and parametric optimizations for different cogeneration power plants in cement industry显示文摘 | Wang Jiangfeng Dai Yiping Gao Lin | 2009 | Applied Energy2009，86，： | 1 |
| 16 | Parametric opti-mization and comparative study of Organic Rankine Cy-cle (ORC)for low grade waste heat recovery 显示文摘 | Yiping Dai Jiangfeng Wang Lin Gao | 2009 | EnergyConversion and Management2009，50，3： | 1 |
| 17 | ParametricOptimization and Comparative Study of Organic Rank-ine Cycle (ORC) for Low Grade Waste Heat Recovery 显示文摘 | DAI Yiping WANG Jiangfeng GAO Lin | 2009 | Energy Conversion and Management2009，50，3： | 1 |
| 18 | Topology-based analysis of pelagic food web structure in the central and eastern tropical Pacific Ocean based on longline observer data显示文摘The tropical Pacific Ocean supports many productive commercial fisheries.However,few studies of ecosystem structure in the tropical Pacific Ocean have been carried out.In this study,we analyzed the food web structure in the central and eastern tropical Pacific Ocean based on trophic relationships of 35 pelagic species collected by Chinese tuna longline observers from June to November in 2017.Topology indices(node degree,D;centrality indices,BC and CC;topological importance indices,TI^1,TI^3;keystone indices,K,K_t and K_b)and Key-Player algorithms(KPP-1,KPP-2)were used to select key species and construct a simplified food web combined with body size data.The Kendall rank correlation and hierarchical clustering analysis indicated that different topology indices resulted in consistent rankings of key species.Most key species were the same as those selected in other studies in the Pacific Ocean,such as Shortbill spearfish(Tetrapturus angustirostris),Swordfish(Xiphias gladius),Albacore tuna(Thunnus alalunga),cephalopods and scomber.The food web would be separated into many unconnected parts(F=0.632,FD=0.795,R^D=0.957)after the removal of the five key species,indicating the key roles of these species in the food web structure and stability.Body size was considered an influential indicator in constructing the simplified food web.This study can improve our understanding of the food web structure in the tropical Pacific Ocean and provide scientific basis for further ecosystem dynamics studies. | Qinqin Lin Jiangfeng Zhu | 2020 | Acta Oceanologica Sinica2020，39，6： | 1 |
| 19 | Parametric optimization and comparative study of organic Rankine cycle (ORC) for low grade waste heat recovery显示文摘 | Dai Yiping Wang Jiangfeng Gao Lin | 2009 | Energy Conversion and Management2009，50，3： | 1 |
| 20 | Parametric optimization and comparative study of organic Rankine cycle(ORC) for low grade waste heat recovery显示文摘 | Yiping Dai Jiangfeng Wang Lin Gao | 2009 | Energy Conversion and Management2009，50，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员