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找到报告 3423 篇 当前为第 280 页 共 343

所属行业:水利、环境和公共设施管理业

  • 2791.利用强大的洋流进行船舶定线

    [水利、环境和公共设施管理业] [2014-09-05]

    From the Surface Velocity Program (SVP) drifter current data, a detailed and complete track of strong ocean currents in the north-western Pacific is provided using the bin average method. The focus of this study is on the Kuroshio, the strong western boundary current of the North Pacific flowing northward along the east coast of Taiwan and then turning eastward off southern Japan. With its average flow speed of about 2 knots, the Kuroshio can significantly increase the ship s speed for a super-slow-steaming container ship travelling at speeds of 12 knots between the ports of Southeast Asia and Japan. By properly utilizing knowledge of strong ocean currents to follow the Kuroshio on the northbound runs and avoid it on the return trip, considerable fuel can be saved and the transit time can be reduced. In the future, the detailed Kuroshio saving-energy route could be built into electronic chart systems for all navigators and shipping routers.
    关键词:洋流;漂移;路由;船舶;节能
  • 2792.建筑节能中心大厦101桑基图能量分析

    [水利、环境和公共设施管理业] [2014-09-05]

    The Energy Efficient Buildings Hub (EEBHub) uses Sankey diagrams to visually analyze energy use in the building of its headquarters, Building 101 (B101). This report describes B101 energy consumption and passive energy exchanges with the surrounding environment and through the building. For this initial Sankey diagram exercise, completed on January 31, 2013, the data/model integration was primarily performed by calibrating the EnergyPlus model to measured energy consumption data. The annual model is used as a starting point, while iterations of the EnergyPlus simulation provide results for January and July to demonstrate how energy use changes throughout the year. Annually, the Sankey diagram shows energy consumption from electricity and natural gas, as well as the end uses. The heating, cooling, and air handling are the largest sources of energy usage. Interior lighting and equipment are also considerable consumers of electricity. Seasonally, the trends of energy consumption are visually demonstrated by comparing January and June Sankey diagrams. As expected, winter requires heating via the boiler as the largest energy consumer, while much of the building heat is lost is to the exterior. The summer months have several sources of heat, both exterior and interior, to the building. Cooling is the largest consumer of electricity in July, followed by interior lighting and equipment, and the air handling. From these seasonal diagrams, it is easy to recognize the buildings interactions with its environment, and the strain that induces on its energy consumption. These visualizations help identify where equipment modifications (with better efficiencies) can reduce energy consumption. This report demonstrates the integration of multiple sources of data to output a broad picture of engineered and environmental fluxes of energy through the EEBHub. The outcomes of this project are to provide a building energy analysis on B101 that helps identify large sources of energy consumption, gaps in data, and provide opportunities to deploy energy saving technologies.
    关键词:能源分析;能源效益;节能;能源消耗
  • 2793.工业工艺和材料改进的跨部门影响分析

    [水利、环境和公共设施管理业] [2014-09-05]

    关键词:能源消耗;能源效率;制造;节能
  • 2794.电力电子变换系统的节能设计原理分析

    [水利、环境和公共设施管理业,电力、热力、燃气及水生产和供应业] [2014-09-05]

    Power electronic transformation system is applied widely in industrial control and the application environment is complex.Big,small and medium-sized system power consumption improves continuously,so it is urgent to reduce the system energy consumption problems.This paper proposes a way to reduce the energy consumption of power electronic transformation system based on genetic algorithm.Work frequency regulation and working voltage measurement technology are used in industrial control system and the voltage and frequency produced by system power consumption are calculated.Genetic algorithm is used to calculate the optimal solution.And then achieve the purpose of reducing energy consumption.Experimental results show that this control algorithm can effectively reduce the power consumption of power electronic transformation system in industrial control and has a good effect.
    关键词:电力电子变换系统;动态电压调节;减少能源消耗;节能
  • 2795.亚热带地区(中国南方广西省)低碳宜居住宅的研究设计

    [水利、环境和公共设施管理业] [2014-09-05]

    This paper introduces a residence design in subtropical region.It uses several new techniques to build a low carbon and liveable house.It also gives many calculations to prove its energy-saving and efficiency.
    关键词:低碳;独立居住;亚热带地区;节能
  • 2796.高层建筑的串并联组合恒压供水管道设计

    [水利、环境和公共设施管理业] [2014-09-05]

    The existing parallel type pressurized water supply pipeline of high-rise buildings has been improved to build energy-saving high-rise building water supply systems.Series-parallel combined constant pressure water supply pipeline is designed.Antipollution high water tank is reasonably installed above the middle area of the building to supply water for the middle area high water tank and supply pressurized water by water pumps for high-rise district.And PLC control system is designed to control the work efficiency of the water pumps according to the sensor feedback information.Verified by calculation and simulation,series-parallel combined constant pressure water supply pipeline is better than parallel water supply pipes in saving the energy which is about the middle-Hybrid phase consumption of the latter.PLC control is simulated and the results show that PLC can effectively control the water supply system to ensure stable water pressure so as to save energy.

    关键词:高层建筑;给水管道;串并联组合;可编程控制器;节能
  • 2797.基于ARM的大学教室智能照明调节系统的研究

    [水利、环境和公共设施管理业] [2014-09-05]

    Research of college classroom intelligent Lighting control system is based on the point of view of intelligence and energy saving.Considering thc phenomenon of lighting waste and poor system management,a design of high stability and low power consumption intelligent Light control system is proposed.Through the research of distribution method of light source and the application of CAN bus communications technologies,this paper mainly introduces a distributed light control system based on ARM.According to the demand of indoor illumination,the system can achieve real-time and accurate regulation of all classrooms' lights.Compared with the traditional lighting control system,besides the characteristic of energy saving,the system also is characterized by strong anti-interference and intelligent management etc.
    关键词:ARM; CAN总线;照明;智能;节能
  • 2798.智能LED日光灯照明控制系统的设计和实现

    [信息传输、软件和信息技术服务业,水利、环境和公共设施管理业] [2014-09-05]

    The intelligent LED daylight lamp lighting control system is designed.According to the external light intensity,the control system which uses the PWM light modulation technology,ST89C52 Single Chip Microcontroller as the control system core,can adjust brightness of the LED daylight lamp automatically and accurately,and can also manually adjust the brightness.A comfortable lighting environment can created through the system for controlling the illumination source,the purpose of energy saving can be achieved.The control system which can be used for a variety of lighting situations has strong application value.
    关键词:智能; LED日光灯;PWM调光; ST89C52单片机;节能
  • 2799.上海住宅建筑外窗固定遮阳的能耗和节能影响分析

    [水利、环境和公共设施管理业] [2014-09-05]

    The building energy consumption simulation software DeST is used to analyze the effects of fixed shading over external window on energy consumption and efficiency, on the base of a residential building in Shanghai.The simulation results show that the fixed shading over south window has little effect on the overall energy saving of residential building.For east and west external window, if window area is not very large and its shading performance is better, the effect of fixed shading installation on energy saving is not obvious.On the contrary, if its area is large and its shading performance is ordinary, the effect is remarkable.Furthermore, when room ventilation capacity is poor, the effect of energy saving by fixed shading installation is more prominent.
    关键词:固定遮阳;能源消耗;住宅楼;节能
  • 2800.富氧燃烧技术的应用和经济预测水泥工业回转窑

    [水利、环境和公共设施管理业] [2014-09-05]

    Using combustion theory to research on the technical theoretical features of oxygen-enriched combustion technology application to the cement industry kiln.On the basis of this,engineering projects of that,a certain enterprise 3000 t/d cement clinker production line applied oxygen-enriched combustion technology,and its economic evaluation were calculated.The results showed that:applying Oxygen-enriched combustion technology to the existing cement clinker calcined equipments,the coal powder consumption,the volume of flue gas and CO2 concentration in the flue gas of unit cement clinker occurred regular changes,When the O2 concentration increased from 21% to 30%,the coal powder consumption decreased by 17.78%,the flue gas volume was reduced by 12.73% and the CO2 concentration in the flue gas increased to 76.57%.If the enterprise used the oxygen-enriched atmosphere of O2 concentration for 30% to form the coal combustion,it can save coal about 71.87 t/d,equipment production capacity increase by 41.75% and capture CO2 products about 2662 t.Every year,this resulted in the profit increasing 103 million yuan.
    关键词:富氧燃烧;二氧化碳捕集;经济预测;节能技术
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