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36 results for “Air Velocity”
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Research ArticleOpen accessIn the keywordsRole of Clothing Insulation for Thermal Comfort: A Numerical Study using Bio-Heat Transfer ModelKabita Luitel, Dil Bahadur Gurung, Harihar Khanal, Kedar Nath UpretyClothing plays a major role in protecting the human body from cold and hot environment by working as an insulator. The physical factors such as conduction, convection, radiation, evaporation and the physiological factors such as blood flow and metabolism within the body together with clothing system help to maintain human thermal comfort and the human thermoregulatory system. On the other … …Journal of Mathematics and Statistics, Vol. 16, Issue 1 · 24 Dec 2020 · 8,032 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Passive Opportunity for Improving Air Quality in the Schools Environment: A Real-World Scale TestingPierpaoli Mattia, Fava GabrieleCan passive technology effectively enhance the indoor air quality? To improve classroom indoor air quality, an increase in ventilation and/or air purifiers are often suggested. In this study, a short-term intervention was implemented and investigated to evaluate the effects of a passive adsorbent surface on the pollutant deposition velocity and to improve the overall classroom air quality. We found that … …American Journal of Environmental Sciences, Vol. 12, Issue 3 · 3 Jun 2016 · 7,591 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRecycled High-Density Polyethylene and Rice Husk as a Wetted Pad in Evaporative Cooling SystemNitipong Soponpongpipat, Sukum KositchaimongkolProblem statement: The low cost and easy-to-find materials, for being used as wetted pad of evaporative cooling system, are necessary for agriculture. This study, thus, studied the evaporative cooling efficiency and pressure drop of recycled High-Density Polyethylene (HDPE) and rice husk as a wetted pad in evaporative cooling system. Approach: The study was done by establishing the tested wetted pad … …American Journal of Applied Sciences, Vol. 8, Issue 2 · 28 Feb 2011 · 8,697 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA Numerical Treatment of Air Flow Model in the Area Under the Station Platform of Thailand BTS Sky TrainNopparat PochaiProblem statement: The area under Phayathai station platform of sky train in Bangkok, Thailand, has a problem of air pollution control. Approach:The Bangkok Mass Transit System Company tries to set up the electric fans inside the area for air flow improvement. Results: The flow of the air is still not smooth and the air quality is still lower than standard. … …American Journal of Applied Sciences, Vol. 7, Issue 11 · 8 Nov 2010 · 7,092 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAnalysis of Cross and Single Sided Naturally Ventilated Rooms Using CFDK. Visagavel, P. S.S. SrinivasanNatural ventilation contributes to the improvement of thermal comfort and quality conditions of the internal air, while at the same time it is recognized as a very efficient technique that, when applied properly. The present project refers to the numerical prediction of air velocities in cross and single-sided naturally ventilated rooms, which are considered along with atmospheric zone. Continuity and … …American Journal of Environmental Sciences, Vol. 3, Issue 4 · 31 Dec 2007 · 6,738 accessesView PDFCite
Research ArticleOpen accessIn the abstractCollision Avoidance Modelling in Airline Traffic Based on the Change of Airplane Movements and Dynamic CloudsYudhi Purwananto, Chastine Fatichah, Waskitho Wibisono et al.An Air Traffic Controller (ATC) system aims to manage airline traffic to prevent collision of the airplane, called the Collision Avoidance (CA). The study on CA, called Conflict Detection and Resolution (CDR), becomes more critical as the airline traffic has grown each year significantly. Previous studies used optimization algorithms for CDR and did not involve the presence of cumulonimbus clouds. … …Journal of Computer Science, Vol. 17, Issue 1 · 20 Jan 2021 · 7,237 accessesView PDFCite
Research ArticleOpen accessIn the abstractExperimental Investigate the Effect of Burner Geometry on the Operation Window of the BurnerJameel Al-Naffakh, Mohammed Al-Fahham, Qahtan A. AbedThe purpose of this paper is to conduct an experimental study of a swirl burner with different lengths for a fixed diameter. Three models of rim length (5 cm, 10 cm and 15 cm) were taken. The results show that any change in the ratio of length to diameter will affect the flame position and structure of the downstream. It … …Energy Research Journal, Vol. 10, Issue 1 · 30 Oct 2019 · 7,428 accessesView PDFCite
Research ArticleOpen accessIn the abstractDesign and Experimental Investigation of a Novel Solar Collector with a W-Shape CoverEdoun Marcel, Djimasra Bonheur, Kuitche Alexis, Zeghmati BelkacemIn the current study, we developed and tested a new type of solar collector named W-shape solar collector. It is a solar collector with single air pass between the transparent cover and the absorber. The cover has double glass whereby the upper glass is flat and the lower glass is w-shape. The absorber is also W-shape. This combination gave rise … …American Journal of Engineering and Applied Sciences, Vol. 12, Issue 3 · 19 Sep 2019 · 7,629 accessesView PDFCite
Research ArticleOpen accessIn the abstractMeasurement of Gas-Phase Mass Transfer Coefficients in a Humidification Column through Random PackingMasoud Khorasani, Morteza Zivdar, Farshad Fashchi Tabrizi et al.Packed columns are an important part of the broad selection of mass and heat transfer equipment. Nowadays, the use of packed columns is increasing, which is because of its lower pressure drop, higher capacity and higher mass transfer in comparison to tray columns. The experiential tests and the hypothetical analysis display that the chemical dehumidification of air by hygroscopic salt … …American Journal of Engineering and Applied Sciences, Vol. 12, Issue 3 · 18 Jul 2019 · 8,028 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Assessment of Solar Chimneys: Part 2 – Impacts of Slenderness Value and Collector Slope on Power OutputErdem Cuce, Pinar Mert CuceIn the previous part, impacts of chimney height thus pressure difference on the power output of solar chimneys have been numerically evaluated. Within the scope of this research, slenderness and slope of collector are analysed in terms of their potential influence on average velocity of air at the chimney inlet. The analyses are based on a commercial and reliable CFD … …Energy Research Journal, Vol. 10, Issue 1 · 9 Jul 2019 · 6,851 accessesView PDFCite