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Modeling and Energy Efficiency Analysis of Thermal Power Plant with High Temperature Thermal Energy Storage(HTTES)

Journal of Thermal Science 2020年第4期29卷 1025-1035页

作者： ZHANG Hongwei LIANG Wenbin liu junqing WANG Jie National Institute of Clean and Low Carbon Energy Beijing 102211China Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China

This paper presents the recent research on the study of the strategies for the flexible operation of the thermal power plant to meet the requirement of load balance. The study aimed to investigate the feasibility of bringing the High Temperature Thermal Energy Storage(HTTES) to the thermal power plant steam-water cycle, to identify the suitable HTTES in the cold(hot) section of the reheating pipeline and to test the efficiency of the HTTES integration to increase the flexibility of peak shaving and energy efficiency via thermal power plant with HTTTES modelling and simulation. Thermoflex was adopted to perform the simulation and a 300 MW subcritical coal-fired power plant model was implemented onto the software platform. The simulation results show that it is feasible to extract steam from the steam turbine to charge the HTTES, and to discharge the stored thermal energy back to the power generation process, and to analyse the improved capability of the plant flexible operation with HTTES. Then the study was extended to analyse the effect of thermal energy temperature, the opening of the regulating valve, and the pipeline pressure loss aspects on thermal efficiency of the whole plant. The study is beneficial to achieve more economic operation of the thermal power plant with HTTES integration. It is concluded that the introduction of the HTTES can improve the consumption of wind power, and these ideas and methods for solving the energy consumption of the renewable energy and reducing the peak energy consumption are provided.

关键词： thermal power plant peak shaving high temperature thermal energy storage wind power accumulation

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A simple method to fabricate N-doped hierarchical porous carbon for supercapacitors

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Clean Energy 2019年第2期3卷 163-172页

作者： Jinliang Zhang Wenfeng Zhang junqing liu Wenbin Liangand Yusheng Yang National Institute of Clean and Low Carbon Energy Beijing 102211PR China Research Institute of Chemical Defense Beijing 100091PR China

Direct carbonization of nitrogen-containing precursors combined with activation is an effective way to prepare nitrogen-doped hierarchical porous *** most common activation agents being used such as KOH and NaOH may cause serious corrosion to the manufacturing *** resolve this problem,a facile approach has been developed to prepare phenolic resin-derived nitrogen-doped hierarchical porous carbon using sodium acetate as the activation agent and hexamethylenetetramine as the nitrogen *** as an in situ activation agent,sodium acetate is less *** results show that the sample obtained at 900℃(PHS-900)reaches a maximum specific surface area(S_(BET))of 1591 m^(2)g^(−1).Benefiting from the optimum balance between high nitrogen content(5.41 at.%)and relatively large surface area(827 m^(2)g^(−1)),the optimal sample PHS-700 exhibits a high specific capacitance of 352 Fg^(−1) when it is used as an electrode in 7 M KOH aqueous electrolyte with a three-electrode ***,it also shows excellent long-term stability in a two-electrode cell(95.3%retention after 10000 cycles).The good electrochemical performance of the samples and the low corrosion,template-free preparation make it a promising strategy to fabricate nitrogen-doped hierarchical porous carbon for supercapacitor electrode materials.

关键词： porous carbon phenolic resin sodium acetate nitrogen-doped supercapacitors energy storage

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Design and simulation analysis of high-temperature heat-storage combined-circulation system

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Clean Energy 2022年第1期6卷 77-88页

作者： Hongwei Zhang junqing liu Wenbin Liang Hongqing Shanand Jie Wang National Institute of Clean and Low Carbon Energy Changping DistrictBeijing 102211China Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 10084China

In view of the continuous increase in the proportion of renewable energy connected to the grid in China and the increasing peak-to-valley difference in electricity demand on the power grid,this paper proposes a high-temperature thermal-storage combined-cycle power-generation *** Thermoflex thermal simulation analysis software,a high-temperature thermal-storage combined-cycle simulation analysis system model was established,and the influence of different initial temperatures and pressure ratios on the combined-cycle system was *** analysis of factors such as electricity cost,annual operating hours,initial equipment investment,unit efficiency and other factors that affect the net income of the system was carried *** to the current power-peak-shaving auxiliary service market in China,it is pointed out that high-temperature thermal-storage combined-cycle projects must be profitable and obtain good economic *** results obtained,on the one hand,provide suggestions for the flexibility and transformation of current gas-fired steam generators for peak shaving and,on the other hand,provide references for the subsequent development of high-temperature thermal-storage combined-cycle demonstration projects.

关键词： high temperature thermal-energy storage combined cycle economy

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Research and development of drug delivery systems based on drug transporter and nano-formulation

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Asian Journal of Pharmaceutical Sciences 2020年第2期15卷 220-236页

作者： Yi Peng Lu Chen Sheng Ye Yu Kang junqing liu Su Zeng Lushan Yu College of Pharmaceutical Sciences Zhejiang UniversityHangzhou 310058China The Children’s Hospital School of MedicineZhejiang UniversityHangzhou 310058China The First Affiliated Hospital School of MedicineZhejiang UniversityHangzhou 310058China

In recent years,the continuous occurrence of multi-drug resistance in the clinic has made people pay more attention to the *** in the expression and activity of transporters can cause corresponding changes in drug pharmacokinetics and *** drug-drug interactions(DDI)caused by transporters can seriously affect drug effectiveness and *** the development of pharmaceutical preparations,people have increasingly concerned about the effects and regulation of transporters in drug *** improve the targeting and physicochemical properties of drugs,the development of targeted agents is very *** them,novel nano-formulations are the *** the continuous innovation and development of nano-formulation,its application has become more and more ***-formulation has exerted certain advantages in the drug development based on transporters,and is also involved in the combination of targeted *** review focuses on the application of novel nano-agents targeting transporters and the introduction of drug-transporter-based nano-formulations.

关键词： Drug transporter Nano-formulation Drug delivery system Bioavailability P-gp

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Interaction　Potential　and　Multifragmentation　in　Intermediate　Energy　Heavy－ion　Collisions

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IMP & HIRFL Annual Report 1994年 107-108页

作者： Yuan Xiuqing Li junqing and liu Jianye

ＩｎｔｅｒａｃｔｉｏｎＰｏｔｅｎｔｉａｌａｎｄＭｕｌｔｉｆｒａｇｍｅｎｔａｔｉｏｎｉｎＩｎｔｅｒｍｅｄｉａｔｅＥｎｅｒｇｙＨｅａｖｙ－ｉｏｎＣｏｌｌｉｓｉｏｎｓＹｕａｎＸｉｕｑｉｎｇ；ＬｉＪｕｎｑｉｎ... 详细信息

ＩｎｔｅｒａｃｔｉｏｎＰｏｔｅｎｔｉａｌａｎｄＭｕｌｔｉｆｒａｇｍｅｎｔａｔｉｏｎｉｎＩｎｔｅｒｍｅｄｉａｔｅＥｎｅｒｇｙＨｅａｖｙ－ｉｏｎＣｏｌｌｉｓｉｏｎｓＹｕａｎＸｉｕｑｉｎｇ；ＬｉＪｕｎｑｉｎｇａｎｄＬｉｕＪｉａｎｙｅＥｘｐｅ...

关键词： Intermediate Interaction Heavy Collisions Energy Potential and in

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Time-Frequency System Builds and Timing Strategy Research of VHF Band Antenna Array

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Journal of Computer and Communications 2016年第3期4卷 116-125页

作者： junqing liu Liang Dong Min Wang Shaojie Guo Yunnan Astronomical Observatories Chinese Academy of Sciences Kunming China University of Chinese Academy of Sciences Beijing China Information College Yunnan University Kunming China Yunnan University-Yunnan Astronomical Observatories Information Technology United Laboratory Kunming China

VHF (Very High Frequency) band antenna array will receive analog signal from universe for storage after digital sampling and adding time scale, and then do the interference analysis of different sub-station digital signal. It requires the time-frequency system with high precision and low drifting. This paper explains a time-frequency system of VHF band antenna, which can produce standard 10 MHz signal and clock signal needed by sampler, to ensure that two computers which sampling data has the same system time and the storage data has the accurate time scale, the system includes time comparison programme based on the GPS network timing two different sampling control computers. Timing strategy uses a time comparison software which based on the Labview graphical programming platform. This software captures the system time of two computers to analyze and determine the time deviation when the two computers occurs time offset, and then grant the GPS time of NTP server to the two computers through local area network in this time deviation. Final results show that this method can automatically calibrate the system time of the computers in the LAN, Precision Can Reach 0.1 s Orless.

关键词： Antenna Array GPS Network Timing

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Host–Guest Interaction Driven Peptide Assembly into Photoresponsive Two-Dimensional Nanosheets with Switchable Antibacterial Activity

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CCS Chemistry 2021年第7期3卷 1949-1962页

作者： Xiaoming Xie Bo Gao Zhiyuan Ma junqing liu Jianfeng Zhang Jing Liang Zhijun Chen Lixin Wu Wen Li State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012 School of Life Sciences Jilin Province Innovation Platform of Straw Comprehensive Utilization TechnologyJilin Agricultural UniversityChangchun 130118

Selectively controlling the bioactivity of antimicrobial peptides is not only a fascinating scientific challenge but also a necessity in localized antibacterial ***,a smart antimicrobial system has been fabricated via host–guest driven dynamic selfassembly between a branched cyclodextrin and cationic linear peptides appended with azobenzene side *** self-assembly structure of the host–guest system could be controlled reversibly through the photoresponsive isomerization of azobenzene moieties.

关键词： peptide azobenzene dynamic assembly photoresponsive antibacterial activity

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基于车-路相互作用的沥青路面平整度劣化研究

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振动与冲击 2018年第6期37卷 76-81,116页

作者：李倩刘俊卿西安建筑科技大学土木工程学院西安710055 西安建筑科技大学理学院西安710055

为探究沥青路面平整度的劣化机理,基于Shell法永久变形理论,建立了一个考虑车-路相互作用的路面平整度劣化模型,并基于该模型开发了一个完整的Matlab求解程序。计算某路段通车一年后的永久变形,与实测值进行对比,误差仅为9.7%,验证了模... 详细信息

为探究沥青路面平整度的劣化机理,基于Shell法永久变形理论,建立了一个考虑车-路相互作用的路面平整度劣化模型,并基于该模型开发了一个完整的Matlab求解程序。计算某路段通车一年后的永久变形,与实测值进行对比,误差仅为9.7%,验证了模型的可靠性。基于该模型分析了路面平整度的劣化机理,并对劣化规律进行了影响因素分析。结果表明:车辆随机动荷载将引起路面纵向各点的永久变形累积速率出现差异,随着轴载次数增加,这种差异逐渐增大,从而引起路面平整度的劣化,这反过来又使各点所受的动荷载差异增大,形成恶性循环;路面平整度随轴载作用次数的增加呈非线性劣化,而车速越小、轴载越大,平整度劣化得越快。

关键词：沥青路面车-路相互作用平整度劣化 Shell法永久变形随机动荷载

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内蒙古草原生态旅游开发研究

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干旱区资源与环境 2010年第9期24卷 140-144页

作者：刘俊清内蒙古财经学院旅游学院呼和浩特010051

开发草原生态旅游对内蒙古旅游业的发展意义非常重大。在分析内蒙古草原旅游资源分布、特点的基础上,对草原旅游发展与草原生态环境的关系、草原旅游发展中存在的问题进行了客观的评价。探讨了内蒙古草原生态旅游发展的战略,提出了相应... 详细信息

开发草原生态旅游对内蒙古旅游业的发展意义非常重大。在分析内蒙古草原旅游资源分布、特点的基础上,对草原旅游发展与草原生态环境的关系、草原旅游发展中存在的问题进行了客观的评价。探讨了内蒙古草原生态旅游发展的战略,提出了相应的对策。

关键词：内蒙古草原生态旅游开发战略

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2017年9月23日朝鲜M_L3.4地震矩张量反演

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地球物理学报 2019年第2期62卷 534-543页

作者：刘俊清刘财张宇邓馨卉吉林大学地球探测科学与技术学院长春130026 吉林省地震局长春130117

利用区域地震台网数字波形资料,对2017年9月23日朝鲜M_L3.4地震进行地震矩张量反演计算与参数稳定性评估,获得了此次地震的震源机制解.结果表明,地震矩心深度为3km,标量地震矩为1.34×10^(14) N·m,矩震级为M_W3.4.地震矩张量结果分解后... 详细信息

利用区域地震台网数字波形资料,对2017年9月23日朝鲜M_L3.4地震进行地震矩张量反演计算与参数稳定性评估,获得了此次地震的震源机制解.结果表明,地震矩心深度为3km,标量地震矩为1.34×10^(14) N·m,矩震级为M_W3.4.地震矩张量结果分解后,双力偶分量(DC)为96.4%,补偿线性矢量偶极分量(CLVD)为-0.8%,震源体体积变化的各向同性分量(ISO)为-2.8%.主压应力P轴方位角为144°,倾角为74°,主张应力T轴方位角为341°,倾角为15°.其中一个节面的参数为:走向248°,倾向60°,滑动角-94°.地震震源体积变化分量很小,震源机制类型属于典型的由断层剪切位错引起的正断层型地震事件,且主张应力T轴方向与区域近地表应变率场方向一致.由于朝鲜2017年9月3日核试验释放的能量对局部区域应力场进行了扰动,致使核试验场附近地壳岩体处于破裂的临界状态,2017年9月23日朝鲜M_L3.4地震事件可能是区域应力场作用下的一次山体滑动事件.

关键词：地震矩张量震源机制朝鲜核试验 P波极性 Jackknifing

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