Noise source analysis and control for small axial-flow fans

2016 ◽  
Author(s):  
Chen Wang
Keyword(s):  
Noise Source ◽  
Axial Flow ◽  
Source Analysis ◽  
And Control

Noise source analysis and control of two axial-flow cooling fans in series

2016 ◽  
Vol 64 (5) ◽  
pp. 677-687 ◽  
Author(s):  
Chen Wang ◽  
Weihao Zhang ◽  
Lixi Huang
Keyword(s):  
Noise Source ◽  
Axial Flow ◽  
Source Analysis ◽  
Cooling Fans ◽  
In Series ◽  
And Control

Study on Mechanical Automation with Noise Characteristic and Control of Blower Room

2013 ◽  
Vol 738 ◽  
pp. 191-194
Author(s):  
Huan Liu ◽  
Han Cui
Keyword(s):  
Noise Source ◽  
National Standards ◽  
Noise Characteristic ◽  
Source Analysis ◽  
Pharmaceutical Factory ◽  
Vibration Isolators ◽  
Flexible Metal ◽  
And Control ◽  
Electric Engine ◽  
Normal Performance

The noise of blower room severity exceeds national standards,which affects normal performance of the new pharmaceutical factory,so it is necessary us to control noise. Based on the measured dates of blowers room, it carries out a noise source analysis and a discus of its noise characteristic in this article, then a controlling approach has found from absorbing noise, excluding noise to blockade sound transmission. When the controlling approach could not meet expect, a supplement program will be designed that vibration isolators will be installed under the basement of electric engine and blower, flexible metal tubes will be installed to isolate vibration spread path. After a set utility controlling approach is implemented, the consequence shows that program not only gains good effects but also caters to more advanced criterion of manufacturers demand.

scholarly journals Optimization of Low Head Axial-Flow Turbines for an Overtopping BReakwater for Energy Conversion: A Case Study

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4618
Author(s):  
Antonio Mariani ◽  
Gaetano Crispino ◽  
Pasquale Contestabile ◽  
Furio Cascetta ◽  
Corrado Gisonni ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Control Strategy ◽  
Energy Production ◽  
San Antonio ◽  
Axial Flow ◽  
Complex Process ◽  
Low Head ◽  
Wave Power Conversion ◽  
And Control

Overtopping-type wave power conversion devices represent one of the most promising technology to combine reliability and competitively priced electricity supplies from waves. While satisfactory hydraulic and structural performance have been achieved, the selection of the hydraulic turbines and their regulation is a complex process due to the very low head and a variable flow rate in the overtopping breakwater set-ups. Based on the experience acquired on the first Overtopping BReakwater for Energy Conversion (OBREC) prototype, operating since 2016, an activity has been carried out to select the most appropriate turbine dimension and control strategy for such applications. An example of this multivariable approach is provided and illustrated through a case study in the San Antonio Port, along the central coast of Chile. In this site the deployment of a breakwater equipped with OBREC modules is specifically investigated. Axial-flow turbines of different runner diameter are compared, proposing the optimal ramp height and turbine control strategy for maximizing system energy production. The energy production ranges from 20.5 MWh/y for the smallest runner diameter to a maximum of 34.8 MWh/y for the largest runner diameter.

SAMURAI - jet noise source analysis of a V2500 engine

2016 ◽  
Author(s):  
Henri A. Siller ◽  
Alessandro Bassetti ◽  
Stefan Funke
Keyword(s):  
Noise Source ◽  
Jet Noise ◽  
Source Analysis
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