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Xuwei Zhu, Jiying Liu, Xiangyuan Zhu, Xiaole Wang, Yanqiu Du and Jikui Miao
The combined radiant floor and fan coil cooling (RFCAFC) system is widely used due to its high comfort and large energy saving potential. In this study, as an example, the combined RFCAFC system was studied in a high humidity environment in Jinan, Shando...
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Wenping Shao, Jingan Feng, Feng Zhang, Shu Wang, Yuhang Li and Jiangfeng Lv
To enhance the working efficiency and aerodynamic performance of the centrifugal fan in the air system of a cotton picker, a new type of centrifugal fan blade was designed by extracting the mid-arc section from the prototype blade and integrating an airf...
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Bin Wu, Jiewei Lin, Anshun Xie, Ning Wang, Guichang Zhang, Junhong Zhang and Huwei Dai
Bird strikes are a common, serious, and devastating event in aviation accidents, and multi-bird strikes are also frequently reported. A numerical multi-bird-strike simulation was performed to investigate the effect of flocking birds striking on engine bl...
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Jiahao Guo and Zhou Zhou
The distributed propulsion system applied to the vertical take-off and landing aircraft must maintain the high performance in both hover and cruise flight. The gap of the power unit has an adverse effect on the distributed ducted fan system, especially i...
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Manuel Henner, Bruno Demory, Mohamed Alaoui, Maxime Laurent and Benjamin Behey
Two blade curvatures representative of those found in automotive fans are compared. Measured performances are analyzed for forward and backward curved blades, either with or without heat-exchangers placed in front of them. The backward fan demonstrated g...
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Vedran Mrzljak, Paolo Blecich, Nikola Andelic and Ivan Lorencin
A forced draft fan, used for the supply of combustion air into the steam generator of the conventional liquefied natural gas (LNG) carrier was analyzed from the aspect of energy and exergy. The power delivered from the induction motor to the fan was calc...
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Chang-Ming Lin, Hsin-Yu Liu, Ko-Ying Tseng and Sheng-Fuu Lin
The objective of this study was to develop a heating, ventilation, and air conditioning (HVAC) system optimization control strategy involving fan coil unit (FCU) temperature control for energy conservation in chilled water systems to enhance the operatin...
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Yun Jiang, Bo Zhang and Tao Huang
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Yun Jiang, Bo Zhang and Tao Huang
The present study aimed at assessing a novel annular-ducted fan lift system for VTOL aircraft through computational fluid dynamics (CFD) simulations. The power and lift efficiency of the lift fan system in hover mode, the lift and drag in transition mode...
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Xuanyang Hu, Yuping Qian, Chaofan Dong, Yangjun Zhang, Changjiang Wang and Weilin Zhuge
Equipped with a distributed electric propulsion system, eVTOL is the primary vehicle for future urban air mobility. The electrical machine determines the weight of the distributed electric propulsion system, and the cooling capability determines the elec...
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Thomas Zisis, Konstantinos Vasilopoulos and Ioannis Sarris
The present study examines the prevailing conditions in a railway tunnel after a train fire accident and the ability of the ventilation system to create the proper conditions for a safe passenger evacuation. The examined scenario included an event of a 2...
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Qiaodan Luo, Shengfeng Zhao, Shiji Zhou, Huafeng Xu and Xiaoying Sheng
The research is based on a full 3D model of a medium variable bypass ratio compression system. The effects of core-driven fan stage (CDFS) VIGV adjustment and forward variable area bypass injector (FVABI) adjustment on the internal flow and component mat...
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Afshar Kasaei, Wenjiang Yang, Zihao Wang and Juzhuang Yan
As the aviation industry seeks sustainable propulsion solutions, innovative technologies have emerged, among which rim-driven fan (RDF) systems hold notable promise. This comprehensive review paper deeply investigates RDF technology, uncovering its princ...
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Jaroslav Homi?in, Peter Ka??ay, Matej Urbanský, Michal Pu?kár, Robert Grega and Jozef Krajnák
Currently, great emphasis on reducing energy consumption and harmful emissions of internal combustion engines is placed. Current control technology allows us to customize the operating mode according to the currently required output parameters, while the...
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Zhiping Li, Yujiang Lu and Tianyu Pan
DPS (distributed propulsion system) utilizing BLI (boundary-layer ingestion) has shown great potential for reducing the power consumption of sustainable AAM (advanced air mobility), such as BWB (blended-wing body) aircraft. However, the ingesting boundar...
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Shuai Yang, Rui Ren and Ya-Qiong Wang
In tunnel construction, the difficulty of ventilation gradually increases with the increase of ventilation distance, which endangers construction safety and delays construction progress. This paper presents an air cabin ventilation system of the tunnel d...
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Nabil Nassif, Mostafa Tahmasebi, Iffat Ridwana and Pejman Ebrahimi
Buildings account for a large portion of the total energy use in the US; therefore, improving the operation of typical variable-air-volume (VAV) systems in buildings can provide a tremendous economic opportunity. ASHRAE Guideline 36 recommends a resettin...
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Karim Soliman, Osama M. Sallam and Christoph Schüth
In the last few decades, groundwater has been the main water supply to the Nuweiba alluvial fan. However, currently, the main water supply is a desalination plant. The desalination plant might be vulnerable to malfunctions resulting in a severe drought. ...
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Maria Lidia Sanchez,Estefania Asurmendi
Pág. 329 - 348
The Candeleros Formation is represented by a succession of deposits that represent terminal fans starting to fill a foreland basin (back-arc) during the Albian. The different sub-environments of the terminal fan suggest low gradients during the onset of ...
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Alessandro Corsini, Sara Feudo, Cecilia Tortora, Graziano Ullucci
Pág. 153 - 163
This work investigates the use of unconventional sensors to measure pressure modulation interpreted as pseudo sound in the near field on the casing of a fan in a view to detect rotating stall. Rotating stall is an aerodynamic issue with a frequency signa...
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