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为确定夏季高温环境下空气流动对人体热舒适性的影响程度,于2008年夏季,进行了吹风环境下人体生理、心理热舒适实验.统计分析表明:夏季高温环境下,吹风使人体生理参数及热感觉出现明显下降的现象,且下降的程度与其所处环境的空气温度有关,相同风速下,空气温度越低,下降程度越大.但当空气温度达到约340时,吹风对人体生理参数基本... 相似文献
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介绍诱导型变风量(VAV)末端装置的优点和设计,指出诱导型VAV末端同样适用于办公室,特别是医院病房空调,可有效地改善房间的空气品质,提高舒适性。采用全空气系统,可抑制微生物、细菌的滋生与繁殖。 相似文献
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挥发性有机化合物对室内空气品质影响研究进展 总被引:25,自引:4,他引:25
系统回顾了近年来一些国家对室内空气环境中挥发性有机化合物(VOC)研究的各个方面,包括VOC研究在室内空气品质研究中的地位,建筑物内VOC对人体健康的影响,VOC研究的实验方法、理论方法及主要研究结论,各国政府、学术团体采取的行动等。得出结论:与建筑科学、环境科学及人体健康相关的工作人员,如居住者、建筑业主、建筑科学家、环境科学家、心理学家和生理学家、建筑师与暖通空调设计人员、建筑和装饰材料生产商、供应商,都应重视VOC问题。 相似文献
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本文对当前国际上工位空调领域内的研究工作进行了回顾和总结,介绍了不同工位空调系统的构成形式,及其在提高工作区热舒适性及空气品质等方面的效果,提出了空调领域中一个新的发展模式,分析并指出了我国在该领域内研究和发展的方向。 相似文献
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“以人为本”是当今世界的共识,而在“以提高人的生活和工作环境空气品质为本”的同时达到最大限度的节能,则是世界顶尖空调产品制造商追求的最高境界和从业理念,这也是全空气变风量空调系统超越其它常规空调系统的根本所在。基于这种理念,皇家空调先于国际同行在国内变风量系统设计、产品研发、自控集成、系统调试等领域纵横十余年,在数十项重点工程实践中获得变风量产品实际应用经验,在此与同行们分享。 相似文献
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Simulating the human body's microclimate using automatic coupling of CFD and an advanced thermoregulation model 下载免费PDF全文
This study aims to develop an approach to couple a computational fluid dynamics (CFD) solver to the University of California, Berkeley (UCB) thermal comfort model to accurately evaluate thermal comfort. The coupling was made using an iterative JavaScript to automatically transfer data for each individual segment of the human body back and forth between the CFD solver and the UCB model until reaching convergence defined by a stopping criterion. The location from which data are transferred to the UCB model was determined using a new approach based on the temperature difference between subsequent points on the temperature profile curve in the vicinity of the body surface. This approach was used because the microclimate surrounding the human body differs in thickness depending on the body segment and the surrounding environment. To accurately simulate the thermal environment, the numerical model was validated beforehand using experimental data collected in a climate chamber equipped with a thermal manikin. Furthermore, an example of the practical implementations of this coupling is reported in this paper through radiant floor cooling simulation cases, in which overall and local thermal sensation and comfort were investigated using the coupled UCB model. 相似文献
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针对目前中央空调系统造成室内空气污染的现状,开发了一种应用于空调系统的室内空气净化装置,并对室内有害物质的净化效果进行实验研究。结果表明:该装置可有效氧化脱除低浓度的NO_2,在稳定的反应状态下(催化剂负载量不变).初始进口浓度越低,其去除率越高;且对高浓度的SO_2亦具有很高的净化作用。 相似文献
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论述了室内空气品质问题的由来和定义,分析了常见室内污染物,并对室内空气品质控制措施进行了探讨,以提高室内空气品质,为人们提供舒适、健康的室内生活环境。 相似文献
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Zhuolun CHEN Lihua ZHAO Qinglin MENG Changshan WANG Yongchao ZHAI Fei WANG 《Frontiers of Structural and Civil Engineering》2009,3(4):462
Taking a certain housing in Guangzhou as an example, we conduct the field measurement of the microclimate at fixed points for air temperature, relative humidity, black globe temperature and wind speed, etc. We investigate the effects of manmade lake, shade of trees and ground surface character on outdoor thermal environment, and make a quantitative analysis on the weighting position of the landscape design factors in design behavior. The study intends to explore a method to improve the thermal environment of residential quarters by changing the corresponding factors. 相似文献
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Window opening and closing is the most preferred behavior for occupants to control their indoor environment in homes. This study aims to identify driving forces for window opening and closing behavior in the home. The additional field survey was carried out for the cooling period after following the previous study. The state of windows and environmental variables for outdoor and indoor were continuously monitored in 23 sample homes over one year. The monitored data provide evidence that there is a statistically significant relationship between window opening behavior and outdoor temperature. The behavior of the occupant's manual control of windows can be described by seasonal effects, occupancy, and time of day. Indoor stimuli, such as such as temperature, humidity, and CO2, can better account for the window opening behavior than can outdoor stimuli. There are clear differences in driving variables between window opening and closing behavior. The closing behavior is better described when the outdoor and indoor variables are combined. Finally, multivariate logistic regression models were developed to predict typical patterns of window opening and closing as a function of indoor and outdoor variables. 相似文献
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以苏州艺圃为例,运用气候因素分析方法对传统园林中的微气候进行了分析研究,进而对中国传统园林在营造微气候中的因素有了新的认识与思考,对改善城市微气候与城市环境建设有着直接的借鉴意义。 相似文献
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针对室内空气品质是人们生活和工作最重要的环境因素之一,并通过目前国内外室内空气品质的定义和评价,分析了几种可能影响室内空气品质的因素,并探讨了空气质量的控制问题,从而充分改善室内空气品质。 相似文献