广州地区某办公建筑节能改造方案分析

本文针对广州地区某办公建筑八种节能改造方案进行能耗分析,结果显示,在广州地区,更换遮阳型单层Low-E玻璃加设置外遮阳效果最好,可节能28.19%;其次是设置外遮阳和玻璃贴膜,可节能25.14%;单独设置外遮阳、更换遮阳型单片Low-E玻璃、玻璃贴膜、更换Low-E中空玻璃的节能率分别为21.91%、18.23%、17.92%、16.20%;强化屋顶和外墙的保温效果后能耗分别增大了0.46%、2.33%.在广州地区,建筑节能设计与改造的重点在外窗.     

围护结构保温在住宅建筑节能改造中的应用

结合某住宅楼能耗现状,对其节能改造试验方案进行了探讨,并从墙体材料保温、屋面双重保温、中空玻璃门窗保温方面介绍了围护结构在住宅改造中的应用,指出节能改造后的建筑达到了预期的效果。     

寒冷地区既有居住建筑供暖改造与节能分析

以济南市某住宅小区节能改造项目为例,对北方寒冷地区老旧住宅建筑的节能改造和节能效益进行分析,研究了建筑外墙、楼顶层和窗户的改造方案,外墙保温改造取得的节能效果最好,实现节能23.7%;窗户保温改造节能效果最小,3项改造措施同时应用,实现节能40.6%,节能减排效果良好;对硬泡聚氨酯保温板、EPS泡沫板和XPS挤塑板3种材料的保温性能对比。结果表明：硬泡聚氨酯保温板的保温性能最优,保温性能随着保温材料厚度的增加呈现提升的趋势,但厚度超过50 mm后,保温性能的提升变慢,选择30 mm厚的保温材料性价比较高。最后,对供暖改造项目的成本和收益进行分析,得出静态投资回收期为5.4年,经济效益良好。     

原有建筑物面砖外墙节能保温改造浅析

对原有建筑物外墙面砖存在的问题进行分析,从外墙面砖安全性、面砖施工质量问题引起房屋外墙渗漏等方面进行了论述,提出了外墙节能保温改造的方案,阐述了方案的合理性,从而解决了外墙保温节能改造的问题。     

建筑节能改造中内保温构造技术的应用

文章介绍了建筑节能改造中内保温构造技术的应用要点;阐述了建筑节能改造中内保温构造技术的应用实践,包括墙体节能方案优化、热工学计算模型和热传系数计算、墙体内保温构造基础节能效果分析,以期提高建筑体的整体保温隔热性能。     

山东地区农房冬季清洁取暖方案经济性分析

本文根据山东地区农房取暖现状的特点,提出热源端清洁化改造(空气源热泵取暖系统、碳晶板取暖系统、燃气壁挂炉取暖系统)、用户端建筑能效提升(外墙保温、门窗更换、屋顶保温、增设太阳房连廊)的冬季清洁取暖方案,并计算获得农房节能改造后热指标约41.3W/m~2。最后从设备造价、运行费用两方面对方案进行了经济分析,获得农房建筑在节能改造的前提下,空气源热泵取暖方式的经济性最优。     

向阳口村既有住宅节能改造研究

农村建筑节能问题已经引起政府和相关部门的高度重视,目前大部分农村既有建筑为非节能建筑,其建筑采暖能耗高,热效率低。近两年北京市开展了既有农民住宅节能保温改造项目示范,本文结合北京市门头沟区斋堂镇向阳口村住宅节能改造项目实施情况,分析了北京市农村既有住宅的现状,分别从节能方案选择、外围护结构保温、供暖系统改造等方面进行论述,并对北方地区新农村既有住宅节能改造提出有价值的建议。     

基于DeST-c的既有建筑节能改造模拟研究

利用DeST-c软件模拟计算成都地区一即有公共建筑外围护结构不同节能改造方案的建筑能耗,得出最优改造方案为外墙添加30mmXPS挤塑聚苯板保温;外窗选用低透型镀Low-e膜玻璃,改造后其节能率可达27.14%。     

紧凑型节能荧光灯的应用

图1 成都银河王朝大酒店成都市银河王朝大酒店是座落于成都市商业娱乐中心的一家四星级大型涉外酒店。共有354间客房及套房，1200m2的豪华大礼堂可供900人的会议、宴会之用，酒店拥有设施齐全的美食、休闲健身及商务会所。成都市银河王朝大酒店照明系统采用白炽灯和卤钨灯。由于其能耗高、光源寿命短，从而使酒店运行成本高、维护工作量大。另外，由于其照度不够、光色差，影响了酒店的豪华舒适的气氛和形象。酒店通过对照明系统的节能改造，在客房、楼道、大堂、宴会厅、工作间及娱乐场所采用广东省南海市华星光电实业有限公司的紧凑型节…     

一种既有建筑节能改造的方案及施工方法

通过对山东科技大学住宅区建筑外墙节能改造实例,提出一种既有建筑外墙节能改造方案和保温体系的具体施工方法,以消除房间内墙结露、发霉现象,达到节能降耗的目的。     

浅析高速公路工程招投标中的最低评标价法

结合目前高速公路施工项目招投标活动的实际情况,阐述了最低评标价法的概念,归纳了其优点及存在问题,对完善最低评标价法提出几点策略,以期促进招标投标市场更加规范有序。     

Place-Making in Megaprojects in Melbourne

This article analyses state-led place-making practices in Melbourne. The two levels of government that influence planning in Melbourne make much of the city as ‘culturally vibrant’ and ‘creative’, and have incorporated creative city-inspired place-making principles into many layers of the planning system. An examination of the development of two mixed-use megaprojects in central Melbourne reveals however that ideals of culturally engaging public places, and indeed of creative landscapes for middle-class consumption, wither in the face of more basic imperatives for economic development. In these case studies the ‘creative city’, no matter how the idea is interpreted, has little traction either as a set of inclusive place-making principles or as a gentrification strategy. The article concludes that the creative city-inspired place-making objectives in the planning system at both state and local levels are ambiguous in their overall intents and completely unsupported by statutory controls. Such place-making objectives as are realised are the compromised results of the interplay of uncoordinated decisions, delivered at the pleasure of the developer.     

Pathogens in septage in Vietnam

Septage is widely acknowledged as a major source of infectious pathogens while disposal of septage, and the operation and maintenance of septic tanks, is not regulated in many developing countries. Twenty untreated septage and septage sludge samples were taken from Can Tho City, Vietnam to examine their pathogen content, and indicator micro-organisms. Escherichia coli and Enterococcus spp. were detected in all samples, regardless of sludge storage time. Phages were detected in 80% of samples. Salmonella spp. were detected in 70% of the untreated septage and 60% of septage sludge samples. Concentrations of phages and bacteria tested in septage sludge after many years of tank storage were much higher than the expected levels. Helminth ova were present in 95% of untreated septage samples with an average of 450 ova l^− 1, and were detected in all septage sludge samples with an average of 16,000 ova l^− 1. Twelve varieties of helminth ova were identified. More helminth ova varieties in higher concentrations were found in septage than those reported from stool samples. The varieties' frequency ranged from 10% to 50% and Ascaris lumbricoides predominated. Results show that pathogens and indicator micro-organisms, especially helminth ova, accumulate in sludge. Thus helminth ova should be considered when septage sludge is treated and used for agriculture. Proper health protection measures must be applied for people handling septage.     

在市场中实践在实践中学习在学习中进步--工程公司市场化进程的回顾与展望

近两年来，工程公司在提高市场竞争意识、推动市场化进程中做了大量工作，其中坚持走出去的方针是我们自我加压、推行加快市场化步伐的一个重要战略步骤。     

新时期广东城市化的新特点

新时期广东城市化出现以下特点:知识源导向、城市由单体向群体化发展、产业集群推动、政府主导自上而下的集约化发展、城镇化向城市化转变、由重“数量”发展向重“质量”发展的转变。     

新形势下高校强化基建财务管理的探讨

在市场条件下高校基建财务人员在加强日常财务管理的同时,必须树立起高度的工作责任心,抓好事前监督、事中监督、事后监督三个环节,全面理解、贯彻执行《高等学校财务制度》,管好用好各项基本建设资金,提高基建财务管理水平,更好地完成高校各项基建任务,以有限的投资,最快的建设速度,获得最大的投资效益。     

2005年北京办公物业市场七大趋势

趋势一:CBD区域写字楼集中放量从各区域规划方案上看,CBD区域多数项目在03～04年处于项目的报批手续及拆阶段,预计2005年正式推向市场,因此2005年CBD区域将成为北京市场供应集中的域,区域即将供应的项目有北京财富中心(二期)、金地国际花园、万达广场、SOHO尚都、万通中心、世纪财富中心、怡禾国际中心、光华国际等。除去未知项目,2005CBD写字楼办公面积的供应量为60万平方米左右。中关村区域经过一段时间的集中供后开始逐步放缓,2005年供应的体量相对较大的项目有中关村金融中心、新中关。金街区域可能开盘的项目只有2个:英蓝国际中…     

浅谈我国工程项目建设成本控制存在的问题

结合目前我国施工企业工程项目成本管理现状,对工程项目成本管理过程中存在的问题进行了较详细的分析,并提出了一些解决问题的办法,以做好项目成本控制工作,进而增强企业经济实力。     

Variation in property taxation in Tulsa

Conclusions It may be reasonably concluded from this study that the range of variation in these ratios of assessed to actual value are of a reasonable size for the great majority of cases. The frequency distribution of these sample ratios was not normal, however, as was assumed a process of this type would produce. On the other hand, the failure of the regression analysis to identify any significant variables which would explain these variations would tend to re-enforce the assumption that the fluctuations were indeed of a random nature.To sum it up in one paragraph, aside from a few extreme cases, the assessing process appears to give estimates which are more consistent than would be expected under the assumption that any errors would be of a random nature, but the regression analysis was unable to isolate any particular socioeconomic characteristics which would explain the variation which was present.Financial support for this research project was furnished by the University of Tulsa.