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Axial flow fan test rig.
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Power input to the dc motor is varied by means of a thyristor controlled dc drive to vary the rpm of motor.
The resulting blade geometry generates a given volumetric flow rate at the minimum fan tip speed.
Figure 2 is a schematic of the closed test loop rig which includes water.
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By using the same method the trailing edge noise prediction model of amiet is extended to the rotating blades of an axial flow fan.
Figure 2 shows the schematic view of the test rig and its component list.
The axial flow velocity increases from the fan hub to the tip.
So a test rig allowing the acquisition of these data is designed then used for this work.
The tunnel consists of bell mouth shaped entry to guide the air smoothly into settling chamber and stabilizes the air flow this follows working section for test section where various models can.
A rpm indicator with proximity sensor indicates the rpm if axial fan.
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Axial flow fan testing rig 1.
The fan test rig and total fan pressure measurements using an array of kiel probes were assessed and in good comparison to.
The test fan was set at no.
It is at inlet part of test rig so the static air of outside region flows into the test.
Axial fan test rig.
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Figure 1 displays the test axial flow pump installed in a pump station laboratory at wuhan university wuhan china 24.
Then the model requires the statistical data of wall pressure fluctuations close to the trailing edge.
The section geometry of the test rig is rectilinear and its size is 880 mm 880 mm.
The fan design is complemented.
Blades that maximize the volumetric flow rate contribution of the outer radii i e.
The flow direction is left to right shown in figure 2.
A pitot tube is provided in the delivery line of the axial fan for static and.
1 in figure 2.
Ahsanullah university of science technology department of mpe design and construction of axial flow fan testing rig participants shahib abrar 11 02 08 034 sadia islam 11 02 08 038 rakib hossain 11 02 08 047 s m.
