نتایج جستجو برای: air distribution system

تعداد نتایج: 2888936  

Journal: :international journal of advanced design and manufacturing technology 0
mohammad akhondzadeh islamic azad university, ahvaz branch mehrdad vahdati k. n. toosi university of technology

air pads are applicable in ultra precision machines very much. two main components of these machines, spindle and table, use the advantages of such systems. the performance and efficiency of air pads have big influence on the whole machine quality. parameters affecting pressure distribution of air tables may be considered as, 1) air compressing method, 2) air nozzle diameter, shape, and size, 3...

2006
Tengfei Zhang Qingyan Chen

Air distribution systems in commercial aircraft cabins are important for providing a healthy and comfortable environment for passengers and crew. The mixing air distribution systems used in existing aircraft cabins create a uniform air temperature distribution and dilute contaminants in the cabins. The mixing air distribution systems could spread infectious airborne diseases. To improve the air...

Journal: :AIJ Journal of Technology and Design 2001

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

ژورنال: علوم آب و خاک 2001
نصیری, سید مهدی, جعفری فر, جواد , لغوی, محمد ,

Wheat as a main food source is partly lost in different ways such as planting, harvesting, storage and even in consumption processes. This calls for attention to reducing these losses through application of the results from agricultural research, use of new farming practices, improvements in management system and repair and renewal of farm machinery. The present study considers the design, deve...

Journal: :Transactions of the Korea Society of Geothermal Energy Engineers 2016

2009
Shi Yin Tengfei Zhang

Air quality in aircraft cabins has long been criticized. Current widely-used air distribution systems on airplanes dilute inside generated pollutants by promoting air mixing and thus impose risks of infectious airborne disease transmission. In addition, low moisture content in cabin is believed to be responsible for headache, tiredness and lots of other unknown symptoms. To restrict air mixing ...

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