10 research outputs found
Design and Implementation of the Photovoltaic and Energy-Saving Monitoring Systems for a Zero Energy House
随着建筑面积的扩张及人们对室内舒适度要求的提高,建筑能耗问题日益凸显。新能源利用及节能监控系统应用是解决建筑能耗问题最行之有效的方法。本文详细探讨了本人在担任2013中国国际太阳能十项全能竞赛厦门大学代表队技术负责人期间,承担设计的零能耗小屋SunnyInside光伏发电系统、能耗监测系统和智能控制系统的设计实现过程,并深入分析了实际运行数据和性能。本文主要完成以下工作: 光伏发电系统部分:通过光伏设计组与建筑设计组协同工作的方式,结合山西省大同市气象数据,对光伏并网发电系统进行了详细设计,并使用模拟软件进行了能耗平衡分析。 能耗监测系统部分:通过CC-Link现场总线网络和以太网,将设备...With the rapid expansion of building scale and the increased comfort requirements for residential buildings, energy consumption issues become increasingly prominent. New energy acquisition and intelligent energy saving control are effective technological applications to reduce building energy consumption. The thesis demonstrates the zero-energy consumption of Sunny Inside in Solar Decathlon China ...学位:工学硕士院系专业:物理与机电工程学院_精密仪器及机械学号:1992011115276
The Design of Multi-functional Micro Electrical Machining Power Supply Based on CPLD
为了解决微能脉冲电源发展中遇到的功能单一、集成度不高等问题,设计了多功能微细电加工脉冲电源。以单片机和CPld作为微控制器,利用模块化的方法对关键模块进行设计,并运用QuArTuS软件对高频脉冲发生单元进行仿真,得到微细电火花和微细电化学的脉冲波形,通过对脉冲的切换实现了微细电火花和微细电化学的加工。In order to solve the problem such as function single,integration degree low,a multi-functional micro electrical machining pulse power supply was designed.The microcontroller based on MCU and CPLD is designed by the moduleir method,and by Quartus software,the high frequency pulse generating unit is simulated.And the pulse waveform of micro EDM and ECM is obtained.The processing of micro EDM and ECM is realized by switching the pulse
Design and implementation of the energy management and intelligent monitoring system of a zero energy consumption house
针对2013中国国际太阳能十项全能竞赛比赛规则及零能耗建筑的特点,结合比赛地点山西大同的气候数据,给出了厦门大学参赛作品,零能耗小屋Sunny InSIdE的能源管理与智能监控系统设计方案。以光伏建筑一体化理论为基础,设计15.25kW光伏并网发电系统,并用相关软件对能耗平衡进行了模拟验证。以三菱PlC为核心,构建了能源管理与智能监控系统,分析了不同条件下空调、相变及遮阳系统的控制策略,并给出具体实现方法。According to the rules of the Solar Decathlon China 2013 and the characteristics of zero energy consumption house, combining with the climate data in competition city—Datong Shanxi, an energy management and intelligent monitoring system for the zero energy consumption house called Sunny Inside from Xiamen University was born.A 15.25kW photovoltaic grid connected power system was designed based on building integrated photovoltaic theory, and used relevant simulation software to test energy balance property.An energy management and intelligent monitoring system was constructed based on Mitsubishi PLC, analyzed the control strategy of heating ventilation and air conditioning, phase-change material and shading system under different conditions, and gave a concrete realization method
Development and Application of PDM System for Food Machinery Companies
针对我国食品机械装备企业数据管理现状及存在的问题,依托SOlIdWOrkS EnTErPrISE PdM、SQl SErVEr及AuTOCAd MECHAnICAl软件平台,构建一套适合食品机械装备企业的数据管理系统,并对系统的数据和流程管理方案进行了详细叙述。In order to solve the data management problems of food machinery companies,with the technology of SolidWorks Enterprise PDM、SQL Server and AutoCAD Mechanical,we build a product data management system that is fit for food machinery companies.The document management and the workflow management method is pressed in detail in the following paper
新疆阿舍勒铜锌矿区英云闪长岩年代学及地球化学/Geochronology and genesis of tonalites from the Ashele Cu-Zn deposit on the southern margin of Altay, Xinjiang[J]
对新疆阿尔泰南缘阿舍勒铜矿区英云闪长岩进行了锆石LA-ICP-MS U-Pb年龄测定,获得了375.3±2.1Ma和386.2±3.8 Ma的加权平均年龄,表明英云闪长岩形成于早泥盆世晚期一中泥盆世早期.岩石地球化学分析结果表明:所有岩石具有高SiO2(74.72%~77.72%)和中等的A12O3(12.06%~13.5%)含量,低的P2O5(<0.04%)和CaO(0.34%~1.65%)含量,且具有贫碱(K2O+ Na2O=5.84% ~6.59%)、富钠(Na2O/K2O=3.3~ 10.9)、过铝质(A/CNK=1.10~1.18)特点;富集LREE和Th、U、Pb元素,贫P、Sr、Nb、Ta、Ti元素,呈现明显的Eu负异常(δEu=0.47~0.81),属低钾过铝质岩石.综合阿尔泰造山带南缘的区域地质资料及英云闪长岩的地球化学特征,认为阿舍勒铜锌矿区英云闪长岩是早中泥盆世的活动大陆边缘环境陆壳岩石部分熔融的产物
Measurement of integrated luminosity of data collected at 3.773 GeV by BESIII from 2021 to 2024
We present a measurement of the integrated luminosity e+e- of collision data collected by the BESIII detector at the BEPCII collider at a center-of-mass energy of Ecm = 3.773 GeV. The integrated luminosities of the datasets taken from December 2021 to June 2022, from November 2022 to June 2023, and from October 2023 to February 2024 were determined to be 4.995±0.019 fb-1, 8.157±0.031 fb-1, and 4.191±0.016 fb-1, respectively, by analyzing large angle Bhabha scattering events. The uncertainties are dominated by systematic effects, and the statistical uncertainties are negligible. Our results provide essential input for future analyses and precision measurements
Determination of the number of ψ(3686) events taken at BESIII
The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^
