AMCA-210 Wind-tunnel Name AMCA-210 Wind-tunnel Abstract Disclosed is a multi-purpose wind tunnel system, which can be used for measuring the characteristic curve of the fan either in inlet chamber or outlet chamber. Also, the data acquisition system and its software program are provided for auto-recording the measure data. 60%,57% ,54% Settling m eans ΔP 0.1M T d5 PL8 PL6 T d8 P t8 (gage) P s7 (gage) T d2 P t1 P t2 M Flow M eter P s5 (gage) Low er H igh 0.3M Auxiliary Blow er 0.3M 60%,57%,54% Settling m eans Figure 1 Schematic diagram of the inlet chamber wind tunnel 60%,57% ,54% Settling m eans ΔP 0.1M T d5 PL8 PL6 T d8 P t8 (gage) P s7 (gage) T d2 P t1 P t2 M Flow M eter P s5 (gage) Low er H igh 0.3M Auxiliary Blow er 0.3M 60%,57%,54% Settling m eans Figure 2 Schematic diagram of the outlet chamber wind tunnel This system is based on the test specification for the AMCA-210/85 “Laboratory Methods of Testing 1
Transcript
AMCA-210 Wind-tunnelName AMCA-210 Wind-tunnelAbstract Disclosed is a multi-purpose wind tunnel system, which can be used for
measuring the characteristic curve of the fan either in inlet chamber or outlet chamber. Also, the data acquisition system and its software program are provided for auto-recording the measure data.
60%,57%,54%Settling means
ΔP
0.1M
Td5
PL8PL6
Td8 Pt8 (gage)
Ps7(gage)
Td2Pt1 Pt2
M Flow Meter
Ps5(gage)LowerHigh
0.3MAuxiliary Blower
0.3M
60%,57%,54%Settling means
Figure 1 Schematic diagram of the inlet chamber wind tunnel
60%,57%,54%Settling means
ΔP
0.1M
Td5
PL8PL6
Td8 Pt8 (gage)
Ps7(gage)
Td2Pt1 Pt2
M Flow Meter
Ps5(gage)LowerHigh
0.3MAuxiliary Blower
0.3M
60%,57%,54%Settling means
Figure 2 Schematic diagram of the outlet chamber wind tunnel
This system is based on the test specification for the AMCA-210/85 “Laboratory Methods of Testing Fans for Rating”. This system provide an online measurement for the Fan Characteristic Curve and the System Resistance Curve of the CPU Cooler、Thermal Module、and other air
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flow system。The design concept is based on the modularization of the components, the system is therefore be able to be a function of Inlet Chamber or Outlet Chamber。
Figure 3 Multi-Purpose Wind Tunnel Measurable System
Figure 4 System resistance curve with different chamber types
Characteristics
Module design of the wind tunnel, pattern number: 172838 The system is designed as the function of the Inlet Chamber and
Outlet Chamber, easy to convert with each other。 Be able to measure the system (Sink or thermal module) resistance
curve either on the inlet method or on the outlet method With fast processing capability of PC, people can automatically
capture the massive test data in a short time and reach the objective value based on statistical theory, with extremely high reproducibility.
Uses Visual Basic programming language. It is user-friendly, and the coordinate could be adjust to fit any scale of flow rate and the static
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Flange Flange Flange Flange
Fanner
Freq. Converter
AC 220VPower
Commutator mesh (60%, 57%, 54%)
Commutator mesh (60%, 57%, 54%)
Freq. Meter
Fan Sample
PC computers
Temperature Meter Temperature
Meter Differential Pressure Meter
Differential Pressure Meter
Differential Pressure Meter
Flange
Total Pressure Tube
Static Pressure
Tube
Power Meter
DC Power Supply
pressure. The precise sensors can automatically measure volumetric flow rate
of the fan 、 voltage 、 amperage and static pressure, with high accuracy. And it can provide features chart output, performance monitoring, and other assisting functions at any time.
The output include the system resistance curve 、 fan curve 、 fan power output 、 fan total pressure curve 、 fan dynamic curve 、 fan electric current curve 、 fan rpm curve and fan efficiency curve. All test procedures are proceeding automatically; the results can be instantly displayed on the screen and saved to the hard disk simultaneously. RTF file, automatically generated, can help people email all the data to the customer easily, without rewriting word files.
The system provide the calibration of the pressure、calibration of the flow element and an adjustable coordinate.
The test program could be updated for free anytime by ACL laboratory of ESS Department of Tsing-Hua university, Taiwan.
Automatically simulate the fan curve at constant voltage and RPM Automatically convert constant voltage performance curve into a
given speed performance curve in line with Fluent or other simulation software program
The system can be chained large, medium and small three modules wind tunnel, measured fan less than 4cm, fan in the range of 4 to 8 cm and fan in the range of 8 to 25.4 cm, so the test has 6 functions, respectively. for: Small wind tunnel:
Fan diameter less than 4 cm: Inlet and outlet fan curve, inlet and outlet system resistance curves
Medium wind tunnel: Fan diameter in the range of 4 to 8 cm: Inlet and outlet fan curve,
inlet and outlet system resistance curves Large wind tunnel:
Fan diameter in the range of 8 to 25.4 cm: Inlet and outlet fan curve, inlet and outlet system resistance curves
SpecificationTest fan diameter range
Small wind tunnel: Fan diameter < 40mm Medium wind tunnel: Fan diameter 40 ~ 80 mmLarge wind tunnel: Fan diameter 80 ~ 254 mm
