深水半潜式生产平台船体 通风空调系统设计

针对半潜式生产平台船体通风空调系统的组成和原理,通过对国内外浮式装置船体通风空调系统设计的技术比选,结合实际工程项目,介绍了船体通风空调系统的设计思路,重点论述了通风系统和空调系统的设计特殊性,可为后续类似设计提供经验和借鉴。     

综合管廊通风系统设计探讨

分析了综合管廊中设置通风系统的必要性,介绍了综合管廊通风系统的分类及选择方式,阐述了综合管廊内通风量和风速的设计计算公式,得出了通风系统设备的运行情况和控制原理,对综合管廊通风系统的科学设计有一定参考意义。     

某人防指挥工程通风空调设计探讨

介绍了人防指挥工程通风空调及防化设计,阐述了通风空调系统计算及设计方法,指出通风空调系统的设计要点,并对通风空调系统方案及冷源选择、工程防化设计进行了详细分析,总结了人防指挥工程通风空调系统设计主要原则,为同类工程设计提供了一定的理论依据。     

城市地下综合管廊通风系统设计探讨

介绍了综合管廊通风系统的设计原则,比较分析了各类通风方式,论述了综合管廊通风系统的设计计算,设备选择与布置,系统控制模式等问题,为综合管廊通风系统的科学合理设计提供参考。     

西安地铁二号线永宁门站通风空调系统设计

介绍了西安地铁二号线永宁门站的通风空调设计,包括设计原则和标准、空调水系统、车站公共区空调系统、设备管理用房区通风空调系统、区间隧道通风系统和系统的运行控制,供设计参考。     

张力腿平台下浮体通风系统设计研究

结合国内首个张力腿平台项目的前端工程设计,对下浮体通风系统的设计进行了研究。通过分析下浮体通风系统设计前提、危险区划分、各类舱室通风方式选择、通风量计算、系统运行方式等设计原则,明确了各类舱室的通风系统设计要求和风管系统的设计要点,形成了完整的张力腿平台下浮体通风系统设计方法。     

深圳北站空调通风系统设计

介绍了深圳北站的空调、通风、防排烟系统和空调自控系统的设计,给出了空调通风系统的主要设计参数、空调系统形式、设备选型及结合消防性能化设计的要求而采取的防排烟设计方法等。设计时结合建筑特点,采用了分层空调的送风方式,CFD模拟表明空调通风系统的设计可以满足使用要求。     

置换通风送风量的计算方法

介绍了国内外置换通风空调系统设计的理论研究和工程应用现状,总结并分析了置换通风的主要设计参数,归纳了置换通风的设计程序,进而推出了置换通风设计中送风量的两种计算方法。     

基于低碳理念的建筑通风系统设计与改造策略研究

本文以建筑通风系统的改造这一问题为研究对象,基于低碳理念,依据建筑通风原理,对多种通风方式进行了分析和类比,提出了针对不同空间的通风改造设计策略,为建筑通风系统的设计与改造提供了一些参考。     

浅谈平战结合人防地下室通风设计

根据平战结合人防地下室通风设计的特点,阐述了战时防护通风系统的设置及其主要设备的选型,对平战功能的转换及密闭穿墙短管的特点作了论述,并对战时通风系统的计算内容进行了介绍,旨在完善人防地下室通风设计。     

高层民用建筑防排烟设计常见问题分析

提出和分析了防排烟设计审查中发现的一些问题，包括加压送风(排烟)量的确定、加压送风系统余压阀和止回阀的设置、加压送风机房新风进风通路的设置、地上地下共用(防烟)楼梯间时加压送风系统的设置、宜设机械排烟设施的几种特殊情况、采用自然排烟建筑高度及开窗型式和面积的限制、排烟防火阀的设置及加压送风口和排烟口风速的控制等，给出了相应的解决建议。     

某地下网吧消防排烟设计

介绍了地下网吧消防排烟系统的设计。消防排烟系统与日常排风系统合用设置,排烟口兼作排风口;消防补风系统与日常送风系统合用设置;平时,排烟系统、补风系统作日常通风换气使用,火灾时,则自动切换为消防排烟方式运行。     

地下汽车库的排风与排烟系统设计

介绍了地下汽车库的排风与排烟系统设计,包括防烟防火分区的划分、排烟排风系统的设计以及消防补风系统。     

宾馆厨房空调通风设计

阐述了宾馆厨房空调通风设计的一般原则及通风系统采用形式，包括送风、排风系统设计，送风量的计算，排烟罩的选择等，并介绍了一个设计实例。     

Estimation of the Air Permeability Coefficient and the Radius of Vacuum Influence for Contaminated Soil and Groundwater Remediation

The air permeability coefficient and the radius of vacuum influence are important parameters in the design of soil vapor extraction systems for removing volatile organic chemicals, but procedures for obtaining these parameters have not yet been established. We developed procedures using previously derived analytical equations for the relationship between air discharge rates from an extraction well and the air pressure head generated in the neighborhood of the extraction well in soil with a uniform degree of water saturation in order to obtain these parameters in soil with varying degrees of water saturation. We verified that these procedures could be used to obtain these parameters by using air permeability test data from five sites. In addition, we demonstrated that these procedures could also be applied to gravel soil with fast air flow.     

垂向射流与挡烟垂壁组合控制烟气蔓延研究

利用FDS模拟走廊中设置垂向射流与挡烟垂壁组合方式对高层建筑火灾烟气控制效果的影响.比较几种火灾模式下烟气的温度、浓度分布.结果表明,采用垂向射流与机械排烟结合的烟气控制模式比单纯机械排烟的效果明显提高;前室部分加压并在前室门前2 m处设置垂向射流,同时在垂向射流和机械排烟口之间布置挡烟垂壁的组合控制模式具有最佳的烟气控制效果.     

Elemental carbon and respirable particulate matter in the indoor air of apartments and nursery schools and ambient air in Berlin (Germany)

This study was performed to examine exposure to typical carcinogenic traffic air pollutants in the city center of an urban area. In all, 123 apartments and 74 nursery schools were analyzed with and without tobacco smoke interference and the households in two measuring periods. Simultaneously, the air outside 61 apartment windows as well as the average daily traffic volume were measured. Elemental carbon (EC), the marker for particulate diesel exhaust and respirable particulate matter (RPM) were determined. The thermographic EC analysis was conducted with and without prior solvent extraction of the soluble carbon fraction. Comparison of these two thermographic EC measurements clearly showed that method-related differences in the results, especially for indoor measurements, when high background loads of organic material were present (e.g. tobacco smoke), existed. Solvent extraction prior to EC determination was therefore appropriate. For the first winter measuring period, the EC concentration levels without solvent extraction in the indoor air were about 50% higher than those measured in the spring/summer period. In the second measuring period (i.e. spring/summer), the median EC concentrations after solvent extraction were 1.9 microg/m3 for smokers' apartments and 2.1 microg/m3 for non-smokers' apartments, with RPM concentrations of 57 and 27 microg/m3, respectively. Nursery schools showed high concentrations with median values of 53 microg/m3 for RPM and 2.9 microg/m3 for EC after solvent extraction. A significant correlation between the fine dust and EC concentrations (after solvent extraction) in the indoor and ambient air was determined. Outdoor EC values were also correlated with the average daily traffic volume. The EC ratios between indoor and ambient concentration showed a median of 0.8 (range: 0.3-4.2) in non-smoker households and 0.9 (range: 0.4-1.5) in smoker apartments. Furthermore, the EC/RPM ratio in indoor and ambient air was 0.01-0.15 (median 0.06) and 0.04-0.37 (median 0.09), respectively. PRACTICAL IMPLICATIONS: In the absence of indoor sources a significant correlation with regard to respirable particulate matter (RPM) and elemental carbon concentrations between the indoor and ambient air of apartments was observed. The high degree of certainty resulting from this correlation underscores the importance of ambient air concentrations for indoor air quality. In nursery schools we found higher concentrations of RPM. An explanation of these results could be the high number of occupants in the room, their activity and the cleaning intensity.     

关于高层建筑排烟设计中几个问题的看法

探讨了现行有关规范中未予明确的进风机控制、排烟口开启的防烟分区数量、排烟口数量设置、中庭排烟量计算、进风系统设置等问题。     

冰蓄冷空调“除热量”分析

本文对除热量的构成进行了讨论,并对冷冻水、楼板和内墙造成的除热量的逐时分布进行了估算,用某大厦空调运行的实测数据进行了验证。理论计算和实测数据表明,空调运行的开始阶段除热量数值比较大,甚至为主要空调冷负荷,认为除热量对冰蓄冷空调有着重要的影响,就建立在科学基础上的冰蓄冷空调技术而言,在进行负荷计算时,必须要对除热量予以适当的考虑。