共查询到20条相似文献,搜索用时 62 毫秒
1.
当前我国的建筑耗能平均水平是发达国家的3倍.并且总体水平随着城市建设不断上升.建筑节能已成为全社会关注的热点.也是当前国内外节能领域的一个热点研究课题。[第一段] 相似文献
2.
建筑节能可持续发展研究 总被引:3,自引:0,他引:3
建筑节能是贯彻落实科学发展观和可持续发展战略的重要举措.目前我国建筑总量大幅上升,已有建筑多为高能耗建筑,建筑用能能效比偏低.针对这一现状,从可持续发展的角度提出了几条建筑节能的对策. 相似文献
3.
4.
5.
建筑能耗是重要的社会能源消耗主体。采用宏观能源统计方法,利用综合能源平衡表估算上海市1999-2009年住宅能耗和公共建筑运行能耗的变化及其特征。结果表明,上海市民用建筑总能耗由1999年的687.82万tce增加到2009年的1 774.91万tce,平均年增长率为4.68%;住宅建筑能耗呈上升趋势,而单位面积能耗逐年下降,单位面积住宅建筑能耗均值比公共建筑低35.30 kgce/(m2.a);公共建筑单位建筑面积能耗变化呈略增态势,2009年单位建筑能耗比1999年高9.64 kgce/(m2.a)。研究结果可为建筑节能减排政策的制定提供决策参考和数据支持。 相似文献
6.
"一般情况下,传统建筑50%的能源都'漏'出去了,并且是在貌似密闭的情况下漏掉的.要节能,房子的密封性能首先要好.我不是说要把大家装在密封盒子里,而是说房间在需要封闭的时候不能随便漏热、漏气." 相似文献
7.
8.
关于建筑节能,笔者是个外行。去年,一个偶然的机会,有位香港朋友请我为亚洲企业领袖协会(Asia Business Council)校对译作《建筑节能:绿色建筑对亚洲未来发展的重要性》,由此才开始对建筑节能有了更多了解。 相似文献
9.
推动建筑节能亟须经济激励政策 总被引:2,自引:0,他引:2
《资源节约与环保》2009,24(2):55-56
按广义能耗统计,目前建筑能耗约占全社会总能耗的42%左右,而且随着工业化和城镇化水平的提高,最终将达到50%左右。 相似文献
10.
港口太阳能建筑将在调整建筑能耗结构、保障建筑能源安全,降低温室气体排放、保护大气环境,创建节约型港口企业,提高职工生活质量,以及推进和实施我国住宅产业化政策等诸多方面产生积极的影响。 相似文献
11.
建筑节能已经高调进入人们的生活。国务院新近出台的关于加强节能工作的决定指出,大力发展节能省地型建筑,推动新建住宅和公共建筑严格实施节能50%的设计标准,直辖市及有条件的地区要率先实施节能65%的标准。同时,要大力发展新型墙体材料。 相似文献
12.
节能降耗中的政府策略 总被引:1,自引:0,他引:1
关系可持续发展的社会效益、环境效益,在市场经济体制下短期内往往与直接的经济效益相背离。这有可能诱使市场主体以社会、环境效益为代价,换取一时的经济利益。 相似文献
13.
咖啡店朦胧的灯光、饭店大厅豪华的灯饰、大型购物中心超爽的中央空调,这一切为我们构筑了奢华和品味的公共生活空间,同时也带来奢华背后的能源问题。 相似文献
14.
15.
The objective of this paper is the simultaneous management of two important industrial resources – energy and water. A class of industrial processes where heat transfer is accompanied by mass transfer (water evaporation and condensation) are concerned, and special attention is given to them where the transfer of heat is a limiting stage. These processes are considered not in isolation but in integration with all related processes and subsystems. More specifically, the set of processes and subsystems include cooling systems, systems of contact economizers for flue gas energy recovery, scrubbers, direct steam heaters, driers, related systems of coolers and the heat exchanger networks. The proposed preliminary design procedure is based on concepts and tools related to Pinch technology especially modified for consideration of simultaneous heat and mass transfer. The manipulated parameters include process' latent and sensible heat loads and systems' structural changes with efficiency criteria allowing sacrifice of quantity for quality of performance. Two specific procedures allow targeting of maximum flue gas energy recovery and minimum temperature of cooling water providing guidance to structural design and system operation. The application of the proposed methodology is designed to achieve water conservation through minimization of water evaporation losses. Its significance is demonstrated through three popular industrial applications (a power station, a brewery and a tissue factory). 相似文献
16.
17.
18.
农村能源建设滞后制约着经济的发展,尤其是高效而稳定的持续农业的发展。本文从以沼气为纽带的生态农业出发,论述了农村能源建设是实现持续农业的重要前提,对农村整体具有经济,社会,生态效益。 相似文献
19.
20.
Minerals on earth whose crystalline order has been reduced by radioactive decay of contained atoms are termed “metamict.”
They are rare and few because in most crystalline solids, atoms and vacancies are relatively mobile at terrestrial temperatures,
and radiation damage tends to be self-annealing. This is not the case in the extreme cold of deep space. Below roughly 100 K,
reduced vacancy mobility allows cosmic ray and solar wind induced lattice defects to endure and accumulate for eons, reaching
energy densities of up to MJ kg−1 in some materials. We examine the possible effects of the release of energy stored in cold deep-space materials when solid-state
defects recombine upon warming due to impacts, gravitational infall, or perihelion. Dimensional analysis suggests energetic
defect recombination in radiation-damaged “xenomict” solids in comets, and planetesimals may, in some circumstances, raise
internal temperatures enough to melt ice and volatilize frozen gases. We speculate that this may account for some cometary
outbursts and Deep Impact experiment results. Calorimetric experiments on appropriately irradiated natural and synthetic materials
are needed to further quantify these mechanisms. 相似文献