Results 11 to 20 of about 2,660 (259)
Frontiers in Physics, 2023 Introduction: In the present paper, experiments for a contra-rotating axial fan have been conducted to investigate the influences of the fan parameters including axial distance, blade number, blade pattern and blade thickness on the performance and noise
Yanjie Zhao +4 more
doaj +3 more sources
Experimental study on performance of contra-rotating axial flow fan [PDF]
International Journal of Coal Science & Technology, 2015 Contra-rotating axial flow fan is a kind of the vital equipment in coal mines. Their work conditions directly affect the safety of staff and production. In the paper, the performance of the contra-rotating axial flow fan is experimentally investigated. The study is focused on the fan performance, the shaft power and the match between the motor and fan ...
openaire +3 more sources
Internal Flow Condition of High Power Contra-Rotating Small-Sized Axial Fan [PDF]
International Journal of Fluid Machinery and Systems, 2013 Data centers have been built with spread of cloud computing. Further, electric power consumption of it is growing rapidly. High power cooling small-sized fans; high pressure and large flow rate small-sized fan, are used for servers in the data centers and there is a strong demand to increase power of it because of increase of quantity of heat from the ...
Toru Shigemitsu +2 more
openaire +3 more sources
Mechanism of irreversible energy loss in impeller of contra-rotating axial fan
Meitan xuebaoWith the urgent need of energy saving and consumption reduction in today's world, the topic of increasing the energy conversion efficiency of ventilation fans has been attracted a lot of attentions, it has become a key issue in the field of ventilation ...
Yongping CHEN +6 more
doaj +2 more sources
Performance and Flow Condition of Contra-rotating Small-sized Axial Fan at Partial Flow Rate [PDF]
International Journal of Fluid Machinery and Systems, 2010 Small-sized axial fans are used as air cooler for electric equipments. But there is a strong demand for higher power of fans according to the increase of quantity of heat from electric devices. Therefore, higher rotational speed design is conducted, although, it causes the deterioration of efficiency and the increase of noise.
Toru Shigemitsu +3 more
openaire +3 more sources
Energy transfer process and evolution characteristics in impeller of contra-rotating axial fan
Meitan kexue jishuEnergy is transferred to the airflow during the rotation of impeller. In engineering, the efficient energy conversion is a key issue. Mastering the energy transfer process in impeller is the premise and basis for realizing efficient energy conversion. In
Yongping CHEN +5 more
doaj +2 more sources
Flow Characteristics and Loss Mechanism of Tip Leakage Flow in Mining Contra-Rotating Axial Flow Fan
Applied SciencesTip leakage flow interacts with the mainstream, impacting the energy transmission process within the impeller of the fan and causing a significant flow loss.
Yongping Chen +3 more
doaj +2 more sources
Design and Experimental Validation of a Ducted Counter-rotating Axial-flow Fans System [PDF]
, 2012 An experimental study on the design of counter-rotating axial-flow fans was carried out. The fans were designed using an inverse method. In particular, the system is designed to have a pure axial discharge flow.
Bakir +21 more
core +8 more sources
Experimental investigation on ducted counter-rotating axial flow fans [PDF]
, 2011 An experimental study on counter-rotating axial-flow fans was carried out. The fans of diameter D = 375 mm were designed using an inverse method. The counter-rotating fans operate in a ducted-flow configuration and the overall performances are measured ...
BAKIR, Farid +3 more
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Time-domain harmonic balance method for aerodynamic and aeroelastic simulations of turbomachinery flows [PDF]
, 2013 A time-domain Harmonic Balance method is applied to simulate the blade row interactions and vibrations of state- of-the-art industrial turbomachinery configurations. The present harmonic balance approach is a time-integration scheme that turns a periodic
Besicovitch A.S. +5 more
core +1 more source