共查询到20条相似文献,搜索用时 78 毫秒
1.
《砖瓦世界》2004,(8):45-46
地区项目名称项目性质建设周期年投资总额万元进展阶段关键设备建设内容辽宁大连港商务办公大厦项目新建2004~200524000正在进行施工准备工作空调、办公设施、电梯、安防设施、卫生洁具、照明设施地上28层、地下2层、总建筑面积5.4503万m2,占地面积3.91万m2北京广播影视大厦工程新建2004~200520000正在进行施工准备工作空调、电梯、照明设施、供水设施、安防设施、卫生洁具兴建一幢13层高,四星级酒店,设有一个两层的地下室,建筑面积2.9973万m2,提供200多间客房安徽易初莲花购物中心工程新建2004~200535000已批可研正在做工程设计空调、电… 相似文献
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李蔚 《智能建筑与城市信息》2002,(6)
本文以加蓬共和国参议院大厦工程为实例,对电气专业各系统,包括强电系统及消防.综合布线.广播扩声.空调自控.保安监控等弱电系统的设计要点作了较为全面的论述,旨在为援外工程的电气设计提供一些借鉴。 相似文献
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该大厦是一栋将刷场与现代化办公楼融为一体的建筑,业主要求空调冷热源共用,而管理分开,概要介绍了大厦的空调通风、防排烟系统的设计,总结了空调设计的得与失。大厦空调系统经过近两年的运行,情况良好,达到了设计要求。 相似文献
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介绍了工程概况及特点,并从集中空调水风系统、局部空调系统、采暖系统、通风防排烟和空调自控系统及经验等方面介绍了大厦的暖通空调设计情况。大厦投入使用三年多,运行良好。 相似文献
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《地下空间与工程学报》1986,(4)
一、简介南方大厦地下商场是广州市一个比较大的平战结合人防工事。它座落在广州文化公园东面,有两个人员出入口,一个备用出入口。东口设在繁华的人民南路,南口设在西堤二马路,与南方大厦北门相望。建筑面积4300平方米,商场面积2100平方米。分东大厅、南营业厅、北营业厅以及南长廊四大部份。商场内设备完善,有发电、空调、滤毒通风等系统,还有消防、通讯、广播、应急照明等设备。 相似文献
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简述了在经华大厦空调系统设计中柜机分层设置的运用,介绍了该大厦的设计参数、空调方式、设备选择、通风系统、水系统等。 相似文献
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介绍了浙江商会大厦空调冷热源、空调风系统及水系统的设计,计算分析了转轮全热回收机组的节能性,讨论了大厦空调水系统分区及水系统压力分布以及回收冷凝水作为冷却塔补水. 相似文献
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李峰 《华南建设学院西院学报》1995,(1)
中房大厦是集商场、百货公司、写字楼、地下两层车库为一体的现代化高层建筑.本文主要介绍中房大厦空调系统、通风系统、水系统、防排烟系统、空调自控等方面的设计情况及空调方案和新风量的确定.给出了各项设计的技术指标. 相似文献
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万国金融大厦空调冷热源方案选择 总被引:3,自引:0,他引:3
大厦空调冷热源可以有不同形式。文中通过对五种空调方案在初投资、占地面积、维护管理、能耗费用及对环境影响等方面作综合比较后,认为离心式或螺杆式冷水机组+燃油(气)锅炉是最适合于该大厦的空调方案。 相似文献
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为保证直饮水水质并提高其安全性,采用AC、O3/AC、UV/AC、O3/UV/AC工艺对自来水进行处理,考察4种工艺对水中微量有机物的去除效果和O3/AC、UV/AC工艺出水的生物遗传毒性及水质的生物稳定性。结果表明,O3/AC工艺对TOC的去除率最高(44.85%),其他3种工艺对TOC的去除率均在38%以上;AC工艺对UV254的去除率最低(23.96%),其他3种工艺对UV254的去除率均高于70%。4种工艺对THMs的去除效果差异不明显,去除率均在40%左右;O3/AC和UV/AC工艺对THMFPs的去除效果好于其他2种工艺的。O3/AC和UV/AC工艺均能保证出水的β-半乳糖苷酶的被诱导活性为阴性,并可保证出水的生物稳定性。 相似文献
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Asphalt concrete (AC) overlays placed over old asphalt pavement have become an alternative to repairing and reinforcing pavements. The strength contributed by the AC overlay is strongly influenced by the anisotropic properties of the pavement material. This study was conducted to analyze the influence of anisotropy, modulus gradient properties, and the condition of the AC overlay and old pavement contact plane on the mechanical behaviors of AC overlays, as well as to quantify the influence of the degree of anisotropy on the mechanical behaviors of AC overlay by a sensitivity analysis (SA). The mechanical behaviors of the AC overlay were numerically obtained using the three-dimensional finite element method with the aid of ABAQUS, a commercial program. Variations in the AC overlay’s modulus as a function of temperature as well as the contact state between the AC overlay and AC layer were considered. The SA is based on standardized regression coefficients method. Comparing the mechanical behavior in terms of surface deflection, stress, and strain of the anisotropy model against those corresponding to the isotropic model under static loads show that the anisotropic properties had greater effects on the mechanical behavior of the AC overlay. In addition, the maximum shear stress in the AC overlay was the most significant output parameter affected by the degree of anisotropy. Therefore, future research concerning the reinforcement and repair of pavements should consider the anisotropic properties of the pavement materials. 相似文献
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通过不同岩石和岩样不同力学状态下的交流阻抗谱测试发现,岩石的交流阻抗谱结构完全相同,不同的岩石交流阻抗谱有一定差别,同一岩样相同物理状态下交流阻抗谱相对稳定,由此得出岩石的交流阻抗谱是岩石材料对交流电信号的反映。岩石的种类和岩样的物理状态与交流阻抗谱之间具有因果关系和线性函数关系,可以通过交流阻抗谱特征来研究岩石的物理性质。 相似文献
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Xin Zhou Da Yan Xiaohang Feng Guangwei Deng Yiwen Jian Yi Jiang 《Building Simulation》2016,9(4):429-441
During technical evaluations of cooling systems in residential buildings, it is necessary to consider the influence of the household air-conditioning (AC) use modes. In other words, how the occupants control the AC, for instance, when it is turned on, what the temperature setting is, and how long it is used. Field measurements and spot interviews indicate that AC usage by residents should be environmental, event and random related. A reduced-order AC conditional probability (CP) model was developed in this study to describe AC usage. The AC CP model was integrated with a building energy modeling program (BEMP) to reflect the interaction of the AC operation and the indoor environment. With consideration of stochastic AC use modes, the uncertainty of user compositions was studied. Additionally, simulation results revealed that AC use modes and user compositions can cause up to a 4.5-fold difference in the system efficiency of district cooling systems. The Lorenz curve and Gini coefficient were applied in this study to describe the load distribution in a quantitative manner. Through a comparison with the constant schedule definition model, the study also identified inclusion of the stochastic feature of AC use modes and their compositions in simulations as being important to the technical evaluation of district cooling systems. 相似文献
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文章就沥青混凝土路面施工中混合料配合比设计与优化提出注意事项.同时对沥青混凝土路面压实度标准进行了探讨。 相似文献
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Equilibrium and intra-particle diffusion of stabilized landfill leachate onto micro- and meso-porous activated carbon 总被引:1,自引:0,他引:1
Stabilized landfill leachate has previously been treated with activated carbon (AC); however, information on the selectivity of AC depending upon the pore size is minimal. Isotherm and kinetic experiments were conducted using three commercially available AC products, one micro-porous and two meso-porous. Equilibrium adsorption and intra-particle diffusion of organic matter from stabilized leachate was studied. Isotherm experimental data were fitted to Langmuir, Freundlich, and Redlich-Peterson isotherm models in non-linear forms. Of the three isotherm models, the Redlich-Peterson model provided the best fit to the experimental data and showed a similar organic matter adsorption capacity (approximately 0.2 g total organic carbon (TOC) g−1 AC) for both micro-porous and meso-porous AC. The organic matter effective intra-particle diffusion coefficients (De) in both AC types were on the order of 10−10 m2 s−1 for AC particle sizes greater than 0.5 mm. Meso-porous ACs showed slightly higher De compared to micro-porous AC. Rapid small-scale tests showed a maximum of 80% TOC removal from leachate by each AC investigated. Fluorescence spectroscopy showed a preferential adsorption of fulvic-type organic matter with an increase in empty bed contact time by each AC. 相似文献
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通过对商业中心空调系统的调查,分析与冷热计费有关的项目,整理出合理的按量计费的计算方法。 相似文献
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In this research, the effect of glazing type and other energy conservation measures on the peak power demand of air-conditioning (AC) systems is investigated for tall and fully glazed government and private office buildings. The EnergyPlus building simulation program is used in the analysis assuming climate conditions similar to that experienced in hot countries of the Arabian Gulf, such as Kuwait. The main objective of the investigation is to meet the limits stipulated in the mandatory Kuwaiti code of practice for energy conservation, with respect to peak AC demand, for both air-cooled and water-cooled AC systems. It is found that for government office buildings with air-cooled AC system, the code limit of 70 W/m2 for the AC peak power is met when tint low-e glazing is used with either heat recovery units or with AC systems with higher coefficient of performance (COP); whereas for private office buildings, the limit can be met when using a number of conservation measures. Overall, the water-cooled AC system showed better performance even though the code limit is 50 W/m2 which is mainly due to the higher COP values achievable with such AC systems. 相似文献
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对住宅空调方式的综合评价分析 总被引:1,自引:0,他引:1
我国的住宅空调应走分散式空调还是集中式空调的发展道路?这是目前暖通空调行业争论较大的一个重要问题.本文根据调查研究结果,从运行能耗、生产能耗、资源消耗、经济性、环境影响和舒适性等方面,对住宅分体空调和集中空调进行了综合评价分析,结果表明:分体空调仍然是目前最节能环保、经济实惠、适合中国国情的住宅空调方式,我国住宅空调应坚持走分散式空调的发展道路. 相似文献