Relevant bibliographies by topics / Rotating ventilator

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Rotating ventilator'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Rotating ventilator"

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Renz, Andreas, Julian Praß, Johannes Weber, and Stefan Becker. "Experimental Investigation of a Friction Ventilator." Advanced Engineering Forum 19 (October 2016): 43–49. http://dx.doi.org/10.4028/www.scientific.net/aef.19.43.

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Standard decentralized ventilation systems typically consist of two ventilators for inlet and exhaust air and a heat exchanger for the heat recovery. A recently developed device, a so called friction ventilator, combines these three elements into a single functional element. The ventilator consists of circular plates which are rotating centrally in between the inlet and the outlet duct of a ventilation system and generate a countercurrent flow in the two ducts. Furthermore, the discs act as a rotating heat exchanger between the two air flows. To increase understanding of the energy transfer fr
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Wu, Juan, Ziming Kou, and Jing Liu. "The Acoustical Behavior of Contra-Rotating Fan." Mathematical Problems in Engineering 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/3739067.

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The noise produced by a contra-rotating ventilator can cause injury to humans. Therefore, it is important to reduce noise caused by ventilators. In this study, the Ffowcs Williams and Hawkings (FW-H) model was used to simulate the acoustics of four different axial impeller spacing points based on the unsteady flow field through a FBD No. 8.0 contra-rotating ventilator. Experiments were conducted to verify the correctness of the numerical model. Meanwhile, the Variable Frequency Drive (VFD) drives the two motors of 55 kW to give the impellers different speeds to distinguish different conditions
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Ma, Zhong Fei, Peng Gang Jin, and Feng Zhao. "Test on Characteristics of the High-Pressure Secondary Rotary Water Gas Jet Ventilation." Advanced Materials Research 594-597 (November 2012): 2167–70. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.2167.

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In order to reduce the concentration of explosive gas, experimental research was carried out on the high pressure secondary rotating water jet ventilation characteristic, and the principle of high pressure secondary rotating water jet ventilation was analyzed. Experiments of the relationship between pressure and the suction air flow characteristics were carried out with different structure of jet pipe, different structure of nozzles, different throat in high pressure single rotating water jet ventilation, and the secondary rotating ventilation characteristic were tested with different guide va
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Rashid, D. M. H., and N. A. Ahmed. "Study of Aerodynamic Forces on a Rotating Wind Driven Ventilator." Wind Engineering 27, no. 1 (February 2003): 63–72. http://dx.doi.org/10.1260/030952403321833770.

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A wind driven ventilator is a simple, cost-effective and environmentally-friendly device that can improve comfort and the working environment. Unfortunately very little is known about the complex flow field associated with the operation of this device. A wind tunnel investigation of the flow associated with a rotating wind ventilator was, therefore, carried out at the aerodynamic laboratory of the University of New South Wales within the Reynolds number range of 1.1 times 105 to 5.5 times 105. An attempt was also made to study some of the important features associated with operation of a rotat
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Szabó, Ferenc János, and Ágnes Várkuliné Szarka. "Finite Element Study of Rotating Elements of a Ventilator." International Review of Mechanical Engineering (IREME) 13, no. 6 (June 30, 2019): 326. http://dx.doi.org/10.15866/ireme.v13i6.17145.

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Farahani. "Simulation of Airflow and Aerodynamic Forces Acting on a Rotating Turbine Ventilator." American Journal of Engineering and Applied Sciences 3, no. 1 (January 1, 2010): 159–70. http://dx.doi.org/10.3844/ajeassp.2010.159.170.

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HE, Qiudong. "Analyses on Blade Fracture of Contra-rotating Axial Fan for Mine Local Ventilator and Its Improvement Measures." Journal of Mechanical Engineering 47, no. 24 (2011): 122. http://dx.doi.org/10.3901/jme.2011.24.122.

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Cho, Dong-Hyun. "A Study on the Improvement of Efficiency of Heat Transfer on the Heat Recovery Ventilator with Rotating Porous Disk." Journal of Fisheries and Marine Sciences Education 26, no. 6 (December 31, 2014): 1352–57. http://dx.doi.org/10.13000/jfmse.2014.26.6.1352.

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Goto, Takahisa, Hayato Saito, Yoshinori Nakata, Shoichi Uezono, Fumito Ichinose, Masanori Uchiyama, and Shigeho Morita. "Effects of Xenon on the Performance of Various Respiratory Flowmeters." Anesthesiology 90, no. 2 (February 1, 1999): 555–63. http://dx.doi.org/10.1097/00000542-199902000-00032.

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Background The anesthetic gas xenon has distinctly different physical properties compared with air, nitrous oxide, or oxygen. This led us to predict that xenon would affect the performance of commercially available flowmeters. Methods Flow was generated by an anesthesia ventilator connected to a lung simulator via a semiclosed breathing circuit. With the system filled with air or with various concentrations of xenon or nitrous oxide in a balance of oxygen, the tidal volume was measured with two rotating vanes, a Pitot tube, a variable-orifice flowmeter, and two constant-temperature hot-wire fl
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Shen, Luke Y., Stephen D. Helmer, Jennifer Huang, Gerayu Niyakorn, and R. Stephen Smith. "“Shift Work” Improves Survival and Reduces Intensive Care Unit Use in Seriously Injured Patients." American Surgeon 73, no. 2 (February 2007): 185–91. http://dx.doi.org/10.1177/000313480707300220.

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We assessed whether a trauma service model with an emphasis on continuity of care by using “shift work” will improve trauma outcomes and cost. This was a case-control cohort study that took place at a university-affiliated Level I trauma center. All patients (n = 4283) evaluated for traumatic injuries between May 1, 2002 and April 30, 2004 were included. During Period I (May 1, 2002 to April 30, 2003), a rotating off-service team provided initial management between 5:00 PM and 7:00 AM. The “day team” provided all other care and was responsible for continuity of care. In Period II (May 1, 2003
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Dissertations / Theses on the topic "Rotating ventilator"

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Rashid, Dewan Md Harunur Mechanical &amp Manufacturing Engineering Faculty of Engineering UNSW. "Wake survey behind a rotating ventilator." Awarded by:University of New South Wales. School of Mechanical and Manufacturing Engineering, 2002. http://handle.unsw.edu.au/1959.4/19076.

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With environmental concern growing in both affluent and developing countries, roof top ventilators, a form of natural ventilation requiring only wind energy to ensure quality air circulation and comfort is becoming a considered choice of many households and industries. Unfortunately, however, many of these ventilators have evolved through trial and error and the flow physics associated with these ventilators is barely understood. The present experimental project was, therefore, undertaken as part of UNSW- Industry collaboration program funded under an Australian Research Council Grant to explo
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Wang, Juan. "Experimental study of two counter rotating axial flow fans." Thesis, Paris, ENSAM, 2014. http://www.theses.fr/2014ENAM0024/document.

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RESUME : Les machines axiales à rotors contrarotatifs subsoniques sont une bonne solution pour les industries où de fortes élévations de pressions et d'efficacités sont nécessaires sans augmenter le diamètre ou la vitesse de rotation des rotors. Néanmoins, le comportement des CRS et les paramètres impactant ses performances ne sont pas encore totalement compris. Cette thèse mène une investigation expérimentale sur la performance et les paramètres influents sur un étage contrarotatif. La technique de design et les méthodes de mesure sont repris sur une thèse précédente réalisée au laboratoire D
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Tucker, Brandon Raye. "Reducing the incidence of ventilator-associated pneumonia with selected positional strategies." Honors in the Major Thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1512.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.<br>Bachelors<br>Nursing<br>Nursing
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Ho, Pui-yee, and 何佩兒. "Continuous lateral rotation therapy in preventing pulmonary complications in mechanically ventilated patients: an evidence-based guideline." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48335356.

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Immobility is one of the factors associated with the accumulation of respiratory secretion in mechanically ventilated patients. Placing patients in a semi-recumbent position between 30° and 45° and frequent manual turning in every two hours are the standard ventilator nursing care practice adopted worldwide. However, the prevalence of pulmonary complications remains high. The use of continuous lateral rotation therapy (CLRT) to improve drainage of secretion within the lung and the lower airways was proposed and has been investigated in numerous studies. The purposes of this dissertation are
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Azzam, Tarik. "Aérodynamique et contrôle de l'écoulement de jeu dans un ventilateur axial obtenu par rotomoulage." Thesis, Paris, ENSAM, 2018. http://www.theses.fr/2018ENAM0080/document.

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Aujourd’hui, la fabrication des turbomachines est conditionnée par des normes de plus en plus restrictives. L'enjeu industriel pour les chercheurs est d'envisager des solutions optimales visant à réduire les sources de perte d'énergie, d'instabilité et du bruit, en particulier l'écoulement de jeu (débit de fuite). Des actions préliminaires ont été élaborées à Arts &amp; Métiers ParisTech sur le rotomoulage du ventilateur axial de refroidissement d'automobile. L'idée de ce travail est d'utiliser la forme creuse induite par le rotomoulage afin de l'exploiter dans le controle de l'écoulement de j
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Grasso, Gabriele. "Development of hybrid methods for the computation of tonal and broadband fan noise source and propagation." Thèse, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/11790.

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Ces travaux de doctorat portent sur la réduction du bruit d'origine aérodynamique émis par les ventilateurs et les doublets d'hélices contra-rotatifs. La méthodologie proposée consiste à intégrer des méthodes rapides et précises de prédiction des niveaux sonores dans le processus de conception. Cette thématique a vu son intérêt augmenter depuis que l'Union Européenne a restreint les limites d'exposition au bruit en milieu de travail et dans les zones habitées à proximité des aéroports. Parmi les méthodes numériques employées en aéroacoustique, les méthodes hybrides de prédiction
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Bergh, Alison. "The effect of passive thoracic flexion-rotation movement on the total static compliance of the respiratory system and respiratory responses in ventilated patients." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/408.

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Sanchez, Marc. "Etude des extracteurs d'air hybrides éoliens : conception de géométries et analyse des écoulements." Thesis, Perpignan, 2015. http://www.theses.fr/2015PERP0040/document.

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Ce travail de thèse concerne l'étude d'extracteurs d'air hybrides éoliens. Il se décompose en des investigations amont et appliquées. Dans la partie amont, des simulations fines ont été effectuées en conduite carrée avec et sans rotation, pour des nombres de Reynolds turbulents de l'ordre de 600, afin d'analyser l'impact de la rotation sur la turbulence. Elles ont montré que la rotation rompt la symétrie de l'écoulement. La partie appliquée est dédiée à la conception d'une nouvelle géométrie d'extracteur d'air. Cette géométrie a été proposée à partir de l'analyse de simulations RANS. Ses perfo
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Kuldavletova, Olga. "L'intégration multisensorielle fonctionnelle et la plasticité des réflexes vestibulaires Vestibulo-sympathetic Reflex in Patients With Bilateral Vestibular Loss Influence of Graviceptor Stimulation Initiated by Off-Vertical Axis Rotation on Ventilation Effect of self-motion perception on autonomic control Vestibulo-Ocular Responses, Visual Field Dependence, and Motion Sickness in Aerobatic Pilots." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMC405.

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L’objectif de ce travail de thèse était d’évaluer le rôle du système vestibulaire dans l’homéostasie en relation avec l’orientation.Nous avons évalué les réponses vestibulaires (1) dans une population normale pour évaluer le niveau d’implication des différents systèmes sensoriels dans la régulation cardiovasculaire et respiratoire et (2) dans des populations présentant des informations vestibulaires perturbées : soit des patients avec un déficit vestibulaire bilatéral soit des pilotes de voltiges aérienne.Les résultats indiquent que les informations vestibulaires et celles des gravicepteurs du
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Rashid, Dewan Md Harunur. "Wake survey behind a rotating ventilator /." 2002. http://www.library.unsw.edu.au/~thesis/adt-NUN/public/adt-NUN20031013.125434/index.html.

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Book chapters on the topic "Rotating ventilator"

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Liu, Rong-hua, Yong-jun Li, Peng-fei Wang, Wei Shu, and Shang-xu Gou. "Influence of the Ratio of the Blowing and Sucking Flow on the Wall-Rotating Circulating Airflow in Fully Mechanized Excavation Face." In Proceedings of the 11th International Mine Ventilation Congress, 49–57. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1420-9_5.

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M., Kannan. "Experimental Procedure for Rotating Ventilated Disk." In Flow Measurement. InTech, 2012. http://dx.doi.org/10.5772/38086.

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Conference papers on the topic "Rotating ventilator"

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Keshavarz, Seyed Ali, Mazyar Salmanzadeh, and Goodarz Ahmadi. "Computational Modeling of Particulate Pollutant Transport in a Ventilated Room in the Presence of Two Heated Breathing and Rotating Manikins." In ASME 2017 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fedsm2017-69102.

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Recently, attention has been given to indoor air quality due to its serious health concerns. Clearly the dispersion of pollutant is directly affected by the airflow patterns. The airflow in indoor environment is the results of a combination of several factors. In the present study, the effects of thermal plume and respiration on the indoor air quality in a ventilated cubicle were investigated using an unsteady computational modeling approach. The person-to-person contaminant transports in a ventilated room with mixing and displacement ventilation systems were studied. The effects of rotational
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Ivensky, V., and T. May. "355. Unique Rotating Local Exhaust Ventilation System." In AIHce 2000. AIHA, 2000. http://dx.doi.org/10.3320/1.2763704.

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Liu, Pin, Yingzi Jin, Yanping Wang, Hongyu Qian, and Li Zhang. "Study on the Aerodynamic Performance of Small Axial Flow Counter-Rotating Fans." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-06091.

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Small axial flow fans are used as cooling components for computers, electronic equipments and other electronic components. With the increasing power of electrical equipment, the demand for lower noise and higher ventilation of cooling fans to improve heat transfer effects is also increasing. Traditional methods of improving ventilation by raising the fan’s rotation speed causes a decrease in efficiency and an increase in noise. The researchers have found that higher pressure, ventilation and efficiency can be achieved in a small space by counter-rotating fans than single fans. In this paper, 3
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Himei, Kohei, and Hajime Yamaguchi. "Numerical Study on Performance of Surface Piercing Propeller using RANS Approach." In SNAME 13th International Conference on Fast Sea Transportation. SNAME, 2015. http://dx.doi.org/10.5957/fast-2015-044.

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Surface Piercing Propeller (SPP) can achieve high propulsive efficiency on high-speed vessels planing to reduce the frictional resistance of hull. It has the characteristic blade section and works partially submerged condition. The blades repeat entry to and exit from the water free surface and the suction sides and trailing edge of blades are exposed to ventilated cavitation while they are under the water. And interface near SPP is severely deformed by the high rotating blades. This working condition of SPP, therefore, makes it hard that propeller open characteristics are estimated with high
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Abbaszadeh, Morteza, Parvin Nikpour Parizi, and Ramin Taheri. "A Novel Approach to Design Reversible Counter Rotating Propeller Fans." In ASME 2012 Gas Turbine India Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gtindia2012-9657.

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Because of their high performance and unique abilities like producing none-rotating wake, Counter Rotating Propellers (C.R.P.) are being used in many advanced propulsion or ventilation systems. But due to complicated design procedure of C.R.P. fans up to now it was not possible to apply the concept in reversible systems. For the first time in this research, a new method presented to design a reversible counter rotating propeller system. This method is based on designing a basic C.R.P. by a reliable edition of blade element theory to achieve maximum performance in main rotating course and then
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Chow, W. K., N. Cai, and Y. Gao. "Numerical Study of Internal Fire Whirls in a Kitchen With Ceiling Vents." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17103.

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The characteristics of flame rotation induced by a fire at the top of kitchen stove were studied numerically with Computational Fluid Dynamics (CFD). Four cases with different locations of fire sources and vents were set up; simulations of swirling air flow and temperature distributions in the kitchen room were carried out. Ventilation by ceiling vents was identified as the necessary condition for internal fire whirl. Recommendations on the design of kitchen ventilation system were made.
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Taniyama, Yoshihiro, Yasuo Kabata, Yoshio Hashidate, Kazunori Shioda, and Hitoshi Katayama. "Improvement of Ventilation Analysis in Turbine Generator." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80132.

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Most of large electric rotating machines, for example, the generator and the motor adopt the cooling type that the coolant gas such as hydrogen and air is circulated inside. To improve the performance of the machine and the competitiveness of the product, development of cooling technology such as efficient and effective ventilation of coolant gas becomes important. In addition, it is also important to calculate the coolant gas distribution with high accuracy. This is because it is necessary to cancel the increase in the heat density by it. In this study, a new cooling design system for the tur
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Cyrus, Vaclav, Jiri Pelnar, and Jan Cyrus. "Reversing of Axial Flow Fans for Ventilation." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46062.

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Changing the flow direction in fans is frequently required in emergency situations in traffic tunnels, chemical plants and mines ventilation. Reverse flow in axial flow fan is often achieved using two methods: a) Changing direction of fan rotation and turning the stator vanes (Method I). b) Turning / resetting rotor blades during fan rotation (Method II). The required volume flow rate at flow reversal is usually at least 60% valid for normal fan working point. The motivation of the present paper is to compare the aerodynamic performance and 3D flow mechanism in fan stage at flow reversal carri
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Hagesteijn, Gerco, Karola van der Meij, and Cornel Thill. "Distributed Propulsion: A Novel Concept for Inland Vessels." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41845.

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In the drive to reduce the fuel consumption of inland vessels, one of the main limitations, the risk of propeller ventilation was investigated. The aim was to reduce the resistance of the vessel, while at the same time an acceptable margin against propeller ventilation had to be assured. A typical inland vessel has up to two high loaded relative large propellers, with tip regions in the lighter loading condition above the water line. To eliminate the risk of propeller ventilation, these ships often have inbuilt shape features such as tunnels and skirts, only having the intention to avoid air b
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Megerle, Benjamin, Timothy Stephen Rice, Ivan McBean, and Peter Ott. "Numerical and Experimental Investigation of the Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Operating Under Low Volume Flow." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-68384.

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The diversification of power generation methods within existing power networks has increased the requirement for operational flexibility of plants employing steam turbines. This has led to the situation where steam turbines may operate at very low volume flow conditions for extended periods of time. Under operating conditions where the volume flow through the last stage moving blades (LSMBs) of a low-pressure (LP) steam turbine falls below a certain limit, energy is returned to the working fluid rather than being extracted. This so-called “ventilation” phenomenon produces non-synchronous aerod
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