提高液晶显示器能效方法的分析

针对目前液晶显示器数量急剧增加的现状,结合液晶显示器的自身特点,对提高液晶显示器能效的方法进行了详细分析,并依据《计算机显示器能效限定值及能效等级》（GB21520—2008）进行了验证。实验结果表明,提高液晶显示器能效,对于构建节能型社会具有极大的应用价值。     

计算机显示器能效检测及分析

介绍计算机显示器能效检测的标准及测试方法,提出对测试结果的影响因素及测试中的注意事项。在大量测试数据的基础上,对目前国内显示器的能效等级现状进行统计分析。     

国家强制能效标准

<正>国家强制能效标准是指国家对进入市场的用能产品能源效率的强制性要求。主要内容包括:能效限定值、节能评价值、能效等级。能效限定值是产品在能效方面的市场准入标准。节能评价值是对产品是否达到节能产品认证要求的评价指标。     

建筑能效评估方法探讨

随着世界能源紧张形势的日趋严峻,建筑节能已成为节能工作的重点.本文介绍了欧美等发达国家的建筑能效标识,指出了我国<建筑能效测评与标识技术导则>的不足,探讨目前适合我国建筑能效评估的方法,相信对完善我国建筑能效标识制度具有一定的借鉴作用.     

能效标准和能效标识

能效标准和能效标识制度是我国重要的节能手段,是节能产品认证、政府节能采购、财政激励等政策推广实施的技术基础文件,是消费者认知节能产品、生产企业推广销售节能产品的有效工具。节能标识的实施将加速淘汰高耗能产品,鼓励开发生产高效节能产品,扩大节能产品的市场分额,促进节能产品的推广普及。     

卷烟企业能效指标体系的构建与应用

从企业、工序、设备3个层面,构建涵盖购入存储、加工转换、输送分配、最终用能各环节的卷烟企业能效指标体系。按照此能效指标体系,进行对标活动,可发现各用能环节和各用能层面企业存在的用能问题,发现节能潜力。通过某烟厂的应用实践表明,合理应用能效指标体系开展节能改造,节能量达到15%以上,并能持续推进卷烟企业的节能减排。     

广东能效电厂项目融资模式创新机制探讨

广东省能效电厂项目是亚洲开发银行与中国政府在节能减排领域的合作项目之一。该项目是国家近年来对节能减排工作重视的产物,也是国际金融组织在中国的能效融资项目成功案例之一。该项目在运行中,积极创新,形成了一套成熟可行的能效融资管理机制。这对推进我国能效融资机制的建设具有一定的示范意义。     

能效水平对标

<正>能效水平对标活动是指企业为提高能效水平,与国际国内同行业先进企业能效指标进行对比分析,确定标杆,通过管理和技术措施,达到标杆或更高能效水平的节能实践活动。通过与第一流的竞     

我国能效问题分析

文章以能源经济效率指标与能源技术效率指标为基础,比较了我国与国外在能效方面的差距。结果表明,由于产业结构、能源结构的不同,以及工艺技术水平、设备规模、管理等因素的影响,我国目前的能源利用效率还比较低,存在着巨大的节能潜力。为使我国的能效水平尽快提高,必须注重产业结构与能源结构的调整;采用先进技术与工艺、提高企业装备水平和管理水平;在节能中长期发展规划的指导下,实现不同发展阶段的节能目标,并应适时调整和完善我国的节能政策、法律法规及标准等。     

工业锅炉能效监测方法的研究进展

锅炉能效监测可明确锅炉的运行情况,对能效数据的准确测试可衡量节能技术的效果.阐述了五项监测指标的测试方法,归纳了锅炉热效率测试方法,分析比较了氧量法和常规法在应用中存在的优缺点.通过对能效测试方法的分析明确了锅炉能效的影响因素,可根据影响因素采取优化锅炉运行的措施提高锅炉能效,达到节能降耗的目的.     

企业节能评价平台的设计研究

针对当前企业节能评价方法的局限性现状,分析并指出了现行企业节能评价方法所存在的问题。针对这些问题,本文以系统评价理论为基础,通过分析和研究影响企业节能的各个因素,综合考量了污染物排放量的减少对企业节能评价的作用,优化了企业节能评价方法。最后依据该方法,设想并提出了应用计算机语言来实现企业节能评价平台的设计方案。     

不同燃油节能添加剂台架试验节能效率的差别分析

本文使用市场销售量较大的三种不同类型的燃油节能添加剂分别做了台架试验,通过燃油节能效率的对比,发现燃油节能添加剂在台架试验中所表现出来的节能效率低负荷下也不超过5%,但是各种添加剂之间的相对值差别很大,不同添加剂之间节油率相差2~7倍,探讨了不同类型的燃油节能添加剂在台架试验中节能效率差别的原因。     

对于提高我省工业主要终端设备能效的研究

按规划时序"十一五"节能规划期已过去两年,节能工作虽经各方积极努力取得了一些成绩,但作为节能工作的目标性参数,仅仅完成五分之一,工业系统节能占总节能量的六成多,因此提高工业终端设备能效成为完成总体节能指标的重要环节,通过对主要工业终端设备的能效水平、能耗现状的分析,客观地评价存在问题、节能潜力,提出改善的途径和措施.     

我国高校能源消耗模型构建与能效策略研究

以构建能源消耗模型为切入点,剖析我国高校的用能现状、特点及发展趋势,对我国高校的节能潜力进行量化分析,提出我国高校开展能效管理的策略。     

电机效率变化对变频改造节能效果的影响

对需要变速运行的风机实施变频调速节能改造是电机系统节能的重点,而准确的节能效果评估是节能项目投资决策的重要环节。目前的风机变频改造节能效果评估方法没有考虑变频前后电动机效率变化。通过对变频后电动机的效率进行理论推导,指出在变频后电动机效率变化明显,应该计及该效率变化对节能效果的影响。通过对某水泥厂实际风机的变频改造节能效果评估,表明电动机效率变化对节能效果影响较大,在变频改造项目的节能效果评估中有必要计及电动机效率变化对节能效果的影响。     

活塞式压缩机节能增效的研究与实践

本文从改造活塞式压缩机中间冷却器以实现节能增效的理论分析着手 ,探讨了改造活塞式压缩机中间冷却器的节能原理 ,并辅以工程应用实例说明。     

Introducing the energy efficiency map of lithium‐ion batteries

The charge, discharge, and total energy efficiencies of lithium‐ion batteries (LIBs) are formulated based on the irreversible heat generated in LIBs, and the basics of the energy efficiency map of these batteries are established. This map consists of several constant energy efficiency curves in a graph, where the x‐axis is the battery capacity and the y‐axis is the battery charge/discharge rate (C‐rate). In order to introduce the energy efficiency map, the efficiency maps of typical LIB families with graphite/LiCoO₂, graphite/LiFePO₄, and graphite/LiMn₂O₄ anode/cathode are generated and illustrated in this paper. The methods of usage and applications of the developed efficiency map are also described. To show the application of the efficiency map, the effects of fast charging, nominal capacity, and chemistry of typical LIB families on their energy efficiency are studied using the generated maps. It is shown how energy saving can be achieved via energy efficiency maps. Overall, the energy efficiency map is introduced as a useful tool for engineers and researchers to choose LIBs with higher energy efficiency for any targeted applications. The developed map can be also used by energy systems designers to obtain accurate efficiency of LIBs when they incorporate these batteries into their energy systems.     

Environment-adjusted regional energy efficiency in Taiwan

This study applies the four-stage DEA procedure to calculate the energy efficiency of 23 regions in Taiwan from 1998 to 2007. After controlling for the effects of external environments, only Taipei City, Chiayi City, and Kaohsiung City are energy efficient. Note that Kaohsiung City reaches the efficiency frontier due to the adjustment via partial environmental factors such as higher education attainment and transport vehicles. We also find a worsening trend for Taiwan’s energy efficiency. Not only is there a gap of energy efficiency between Taiwan’s metropolitan areas and the other regions, but the gap has also widened in recent years. Those inefficient counties should be given priority and the savings potential. Except for road density, the evidence indicates that each environmental factor has partial incremental effects on input slacks. As more cars and motorcycles are unfavorable externalities affecting partial energy efficiency, the central government should help local governments retire inefficient old motor vehicles, encourage energy-saving vehicle models, and provide convenient mass transportation systems. Besides, people with higher education cause industrial energy inefficient in Taiwan. The conscious of effective energy saving is necessary to schools, communities, and employee accordingly.     

Evaluation of the effectiveness of an energy efficiency program for new home construction in eastern North Carolina

This paper reports on the evaluation of the effectiveness of an energy efficiency program in eastern North Carolina. This subject program is focused on improved construction methods for residential housing. The program incorporates proven energy saving technologies, construction procedures, onsite inspections, and design construction methodologies in new residential construction. The analysis compared the energy usage associated with the houses built in conjunction with the energy efficiency program (test group) with similar new residential construction unrelated to the program (control group). Several statistical methods were employed to establish differences between the energy efficiency program participants and the control group. The analysis provides significant support for the effectiveness of this energy efficiency program and supports the suitability of similar efforts for inclusion in plans for renewable energy offsets and energy efficiency standards.     

流体高效输送节能技术在中央空调中的应用

对中央空调水系统运行普遍存在的过流量、低效率、高能耗现象作了全面分析,并对目前解决这一技术难题的主要方法进行了比较,重点介绍了流体高效节能输送技术。通过实例分析了该技术应用于中央空调水系统的节能效果。