简介:Likeothercountriesintheworld,itisinevitabletoencoun-terwithsomeenvironmentproblemsintheprocessofen-ergydevelopmentandutilization.ItisespeciallysoinChinawhereenergystructureismainlybasedoncoal.Atpresent,coaltakes74%ofthetotalprimaryenergywhileoutofthe74%,only23%hasbeenconvertedintocleanandconvenientelectncenergy.Sopredomi-nately,theairpollutioninChinaismainlycausedbycoalsmoke.Inlargecities,theairpollutionbydirectcoalburningisbecomingmoreandmoreoutstandingduetothefastdevelopmentofindustryand
简介:Co-hostedbyChinaSocietyforHydropowerEngineeringandChinaThreeGorgesProjectCorporation,co-organizedbyChinaHydropowerEngineeringConsultingGroupCorporation,SINOHYDROCorporation,ChinaGezhouba(Group)CorporationandChinaInstituteofWaterResourcesandHydropowerResearch,organizedbyChinaElectricPowerInformationCenterBeijingZhongdianqiuzhenT&DCo.,Ltd.,supportedbyStateElectricityRegulatoryCommissionofChina,StateGridCorporationofChina,ChinaSouthernPowerGridCo.,Ltd.,ChinaHuaneng
简介:随着我国电力改革的逐步深入,电力备用的市场化运营问题显得十分重要.介绍了电力价格弹性系数的概念,电力备用的定义与功能;从市场化运营的角度,基于用户的需求曲线和消费者剩余理论,对市场条件下电力备用的价值与备用的需求曲线进行了研究,并探讨了系统最优备用水平的优化模型;通过案例分析,研究电力需求价格弹性系数与系统最优备用水平和备用价格的关系,即需求价格弹性系数越高,系统最优备用需求水平和备用价格越低,系统最优备用需求水平与价格,随电力需求价格弹性的变化而变化.对我国电力备用市场的理论研究与健康运营提出合理化的建议.
简介:报导了国内外起动用长寿命铅酸蓄电池的概况,根据笔者多年积累的经验并针对这类电池的应用特点,具体介绍了起动型铅酸蓄电池在原辅材料,零部件,生产设备和制造工艺等方面如何采取有效措施以提高这类电池的使用寿命。