旅游景区圈的环保低碳先行者

<正>当低碳生活成为一种时尚,低能耗、低污染的"低碳旅游"概念也逐渐被不少景区和游客所推崇。低碳旅游虽然略显艰苦却点滴中透着环保,虽然"小众"却十分时尚,或许终有一天,它能够从时尚旅游概念变身为主流的旅游方式。燕子沟推荐理由:《2012》拯救全人类的诺亚方舟拍摄地,有良好的低碳形象。景区主要倡导低碳旅游。在以往的川西旅游地中,很少有人提到燕子沟,自《2012》放映后,燕子沟才慢慢被人所知悉并且变得更加有吸引力。冰川、雪峰、彩林、温泉这些川西该有的景色它都有,但最吸引人的,是长达30多公里的红石滩,红石的"身世"至今还是个谜。景区已尽量减少了观光车的使用,连扩建的步游道也是在以前山民采药时留下的道路上铺设的。景区内还停售一次性雨衣,提供免费雨具。     

GE提供配电系统助力北京2008年奥运会

<正>2008年3月26日,国际奥委会和北京2008年奥运会的全球合作伙伴通用电气公司(GE)近日宣布与中国国家电网签署了一项总额数百万美元的协议,共同为北京奥组委(BOCOG)提供支持。根据协议,2家公     

2008年全国节能宣传周启动

<正>日前,国家发展和改革委员会、教育部、科技部、工业和信息化部、环保部、住房城乡建设部、交通运输部、农业部、商务部、国资委、广电总局、国管局、全国总工会、共青团中央等14部门印发了《关于2008年全国节能宣传周活动安排意见的通知》,定于2008年6月15日至21日,联合举办2008年全国节能宣传周活动。     

首届中国清洁技术投融资峰会在北京举行

随着中国经济的飞速发展,能源短缺,环境污染等问题日益严重.欧美等发达国家早已开始着手解决这些问题,每年都有大量来自于政府、企业和风险投资的资金用于清洁技术的研究与应用.根据道琼斯数据显示,2007年在清洁技术领域,全球共发生了221项投资案例,投资总额达30亿美元,比2006年增长了43%.     

中国科技部长万钢获国际氢能大奖

第十七届世界国际氢能大会于2008年6月15日～19日在澳大利亚布里斯班市举行,来自全世界44个国家的600余位代表聚集一堂,讨论当代氧能技术和发展趋势.     

在江西省能源研究会第四次会员代表大会上的讲话

各位领导、各位新任理事、同志们: 江西省能源研究会第四次会员代表大会,在全体代表的共同努力下,已圆满完成了各项议程. 省政府对我们这次会议十分重视,胡振鹏副省长亲自出席会议,并做重要讲话,是对我们的鞭策和鼓舞.省科协、省经贸委、省发改委、省民政厅领导到会祝贺,省科协、省民政厅、省科学院的领导还发表了热情洋溢的讲话.对于上级领导的讲话要求,特别是胡振鹏副省长的讲话,我们将在下一步工作中要认真贯彻.     

Experimental Investigation on the Adiabatic Film Effectiveness for Counter-Inclined Simple and Laid-Back Film-Holes of Leading Edge

The adiabatic film effectivenessηof the counter-inclined film-holes fed by varying internal coolant intake on the turbine vane leading edge model was experimentally investigated.A semi-cylinder model was adopted to model the vane leading edge which was arranged with two-row holes,which located at±15°on both sides.The four Leading edge model with the combinations of hole-shape(simple holes and laid-back holes)and intake structure(plenum and impingement)were tested under four blowing ratios M of 0.5,1.0,1.5,and 2.0.Theηcontours were obtained by the transient measurement technique based on double thermochromic liquid-crystals.The results present that theηis sensitive to the M for the four studied leading edge cases.The addition of impingement enhances theηfor the two studied holes.The film jets make the coolant-flow closed to the target surface,resulting in higherηunder lower M.The core with higherηappears in the downstream area of hole-exit.Theηenhancement can be provided to almost the identical level by adding the impingement-holes and improving the hole-exit shaping in most areas.With increasing M,the jets with stronger exit normal momentum penetrate into the main-flow.The impingement addition may be a more effective program to upgrade theηrelatively to the exit shaping under larger M.Besides,the laid-back holes with impingement case produce the highest film cooling performance among the four cases,providing great potential in the leading edge especially under larger M.     

第二届中国新能源国际高峰论坛举行

<正>2007年12月11～12日,第二届中国新能源国际高峰论坛在无锡开幕。该论坛由全国工商联新能源商会和江苏省无锡市人民政府联合主办,尚德电力控股有     

世纪油页岩开发利用动态——记美国第27届国际油页岩会议

介绍了2007年10月由美国科罗拉多矿业学院召开的第27届国际油页岩会议的概况,重点介绍了美国、中国、爱沙尼亚、俄罗斯、巴西、约旦等国家的油页岩的最新发展动态.当前世界上生产页岩油的国家有爱沙尼亚(35×104 t/a)、中国(33×104 t/a)、巴西(18×104 t/a),爱沙尼亚和中国都有增产页岩油的计划.美国能源部等机构提出了发展页岩油生产的中长期设想,建议到2035年年产页岩油1.25×104t.当前世界上利用油页岩燃烧产汽发电的国家有爱沙尼亚、中国、德国和以色列,爱沙尼亚电站规模很大,其他国家规模较小.     

发展集中供热节约能源保护环境

集中供热是节约能源和解决烟尘污染的有效途径,可实现环境效益、经济效益、社会效益的统一.本文论述了发展集中供热的十个经验和问题.发展集中供热,要力求技术先进,经济合理,树立用户第一的思想,要加强科学管理,开展文明生产,为保护环境,节约能源,作出新贡献.     

建设项目竣工环境保护验收监测报告与调查报告的区别以及编制报告时应注意的问题

分析、阐述了在建设项目竣工环境保护验收中,以污染排放为主和以生态影响为主两类建设项目分别编制监测报告与调查报告的区别,并提出编制报告时应注意的几个问题.     

壳牌在中国

壳牌在中国发展业务,已超过一百多年.在19世纪90年代初,壳牌运输贸易有限公司便已开始把煤油输入中国,并在香港、上海、广州和厦门建立油库.二次大战前,壳牌在中国设立了超过50间附属公司,在约20个省份有1000个经销处.     

Experimental study on heat transfer and flow resistance in improved latticework cooling channels

Characteristics of heat transfer and flow resistance of the latticework （vortex） cooling channel with ribs truncated at their two ends were theoretically and experimentally studied compared with regular and smooth channels of the same configuration. The results showed： the heat transfer efficiency of the latticework channel with two slots was better than those of regular and smooth channels of the same configuration, its flow resistance situation in the slotted channel becomes quite complex; The flow resistances of 2 mm- and 4 mm-slotted channels were obviously lower than that of the regular channel, but they are still much higher than that of the smooth channel; Compared with the regular channel, the total heat transfer efficiencies of the slotted channels were pretty improved, among them the 4-mm slotted channel has the biggest enhancement. From the experimental results, it is obvious that the latticework channel with proper slots has a great prospect in the design of the inner cooling channels of turbine blades.     

国家发展改革委、财政部、国家电监会要求各地限期全面落实差别电价政策

经国务院批准,国家发展改革委、财政部、国家电监会近日联合下发了《关于进一步贯彻落实差别电价政策有关问题的通知》(以下简称《通知》),要求各地限期全面落实差别电价政策.     

国家发展改革委、建设部联合发布城市供热价格管理暂行办法

为规范城市供热价格管理,保障供热、用热双方的合法权益,促进城市供热事业发展和节能环保,近日,国家发展改革委和建设部联合下发了《城市     

热泵辅助太阳能中央热水系统年运行特性研究

提出采用热泵来取代传统的电加热器,构成热泵辅助太阳能中央热水系统,可有效地降低能源消耗.结合2005年西安地区气象数据,建立了合适的数学模型,并用现有的试验数据对模型进行了校准,通过模型模拟了该年热泵辅助和电辅助太阳能中央热水系统的性能系数,输入功耗,出水温度等运行参数,并对两者进行了对比.     

Influence Factors for Impact Actions and Transient Trajectories of Fan Blades after Fan Blade Out in Typical 2-Shaft High Bypass Ratio Turbofan Engine

To enhance the understanding of design characters, which have prominent influences during the fan blade out event, a simplified geometrical and dynamic analysis method was derived, and a typical 2-shaft high bypass ratio turbofan engine was selected and modeled. Based on analytical deriving and engineering experience learned from the real engine failure case, three determinative impact actions were recognized from the fan blade out process. The transient trajectories of these impact actions were researched in analytical method, and then thickness of acoustic lining, quantity of fan blades and threshold load of structural fuse were analyzed as key design characters. 36 serialized fan blade out transient dynamic simulations were conducted by using the 2-shaft high bypass ratio turbofan engine model within different combinations of the three key design factors. The results from geometrical and dynamic analysis matched mainly well with the results from simulations. Characteristic phenomenon in simulation can be explained theoretically. Five conclusions can be summarized from these results. (1) If thickness fan acoustic lining was thinner, the deviation between simplified analytical calculation and simulation were not outstanding to predict Blade-Casing the first impact time and angular position. (2) An appropriate thickness of acoustic lining could make a lower impact stress of fan casing at the first impact. (3) Different thickness of acoustic linings leaded to two impact modes for blade 2, which were tip impact and root impact. (4) Different impact conditions between blade 1 and blade 2 caused remarkable speed components distinction of blade 1, and leaded to a wide range of transient trajectory of blade 1 during FBO event. (5) Thicker acoustic lining in this research can usually find the porper threshold loads setting, which can give a satisfactory outbound vibration. Two details were raised for further research, which were impact behavior of composite material fan blade and honeycomb and influences of wider FBO threshold load ranges in design cases with thinner acoustic lining.     

太阳雨雨润四川

在中国太阳能界,江苏太阳雨集团一直以做国际化"社会公民企业"为己任.     

技术为王,品牌制胜——清华阳光倾力打造太阳能热利用行业的"百年老店"

发明核心技术成就行业领导者形象 北京清华阳光公司是由清华大学国有独资的清华控股有限公司控股,一轻集团和首钢股份强势加盟的高新技术企业,20年来以专业生产太阳能光热利用产品作为自己的发展方向.作为一家"清华"背景的企业,拥有强烈的技术"情结"是很正常的,但是当技术进步本身几乎成为陈词滥调,并且很多人真的认为是陈词滥调并且在行动上放弃时;当太阳热水器行业都在谈论概念、价格、促销、广告时,20余年矢志不渝坚持技术进步的清华阳光公司俨然成为太阳热水器行业的"异类".     

北京"节能警察"正式上岗——访北京节能监察大队黄倩队长

2007年6月10日,在2007中国北京国际节能环保高层论坛上,国家发展改革委副主任解振华、北京市常务副市长吉林共同为北京市节能监察大队揭牌,标志着北京市"节能警察"队伍正式上岗.