J. Mike Walker ‘66 Department of Mechanical Engineering Texas A&M University
Taeksoo Kim
Weekly Meeting
(2020.03.26)
Schematic for experimental set-up (DAQ system)
DAQ setup Inlet piping setup
Power Supply
: Pressure transducer (sensor)
: Single State Relay
16’’ 18’’ 14’’
Outlet piping setup
2
2 2
Air OUT SSR
: Wires
Power Supply
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Data Acquisition device
◼ Need 2 analog inputs (pressure sensor), 12 digital I/O channels (connection with SSRs)
◼ Existing lab equipment that could be used for our experiment
➢ Analog input module
1. NI-9201
2. 8 (Single-Ended) channels 3. 12-Bit Analog Input
4. Provides ±10 [V] inputs with 500 [kS/s] sample rate 5. This module can serve as a module for 2 analog inputs
➢ Wi-Fi CompactDAQ Chassis
1. Transmits module data
➢ CompactDAQ Chassis
1. Transmits module data
Update to the parts (DAQ system)
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Data Acquisition device (Options possible for dealing with 12 digital I/O channels)
◼ Option 1: Using Digital I/O modules (NI-9421 & NI-9472)
➢ NI-9472 (Digital Output module)
1. NI-9472 exits in our lab, but it may have to be detached from the past experimental setup 2. 8 channels
3. Max. Output: 30 [V], Continuous current: 750 [mA/ch]
➢ NI-9421 (Digital Input module)
1. 8 channels
2. Max. Input: 30 [V], Max. input current: 7 [mA]
3. Price: $117
➢ Additional Compact DAQ chassis maybe necessary…
◼ Option 2: Using Multifunction I/O Device
➢ USB-6008
1. 8 Analog inputs (12-Bit, 10 kS/s) 2. 2 Analog outputs (150 Hz)
3. 12 Digital I/Os 4. Price: $125
Update to the parts (DAQ system)
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Pressure transducer (Normally Closed switch)
◼ Ones that are already in our lab
◼ 1/8 MNPT end
◼ Working pressure: 0 ~ 2,315 [psi]
◼ 120/240 Vac - 6.0 FLA, 36 LRA
➢ FLA: Full Load Ampere fully loaded motor current ampere
➢ LRA: Locked Rotor. Ampere during motor starts
◼ 120/277 Vac - 375 VA Pilot Duty
◼ 24 Vac - 125 VA Pilot Duty
Update to the parts (DAQ system)
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Single state relay (SSR)
◼ Price: $ 18 per device
◼ AutomationDirect.com
◼ Need 6 devices
◼ 3~32 VDC Input, 3-200 VDC load voltage, 12 A contact rating
➢ Load voltage & contact rating are related to Output
◼ Typical input current: 10 mA
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Power Supply
◼ Ones that are already in our laboratory
➢ Channel 1,2 → 0 ~ 30 [V], 3 [A]
➢ Channel 3 → 5 [V] fixed, 3 [A]
Update to the parts (DAQ system)
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Price lists as of Mar. 26
th◼ Tanks ($299.99+$194.15)
◼ Check valve ($11.40×2)
◼ 2-Way Solenoid ($20.61×5)
◼ Motorized Ball valve ($34.99×1)
◼ Straight MNPT ($3.20×5 + $3.37×4 + $5.93×4 + $11.37×1)
◼ T-shaped FNPT ($6.13×4 + $9.11×2)
◼ Pipe fittings ($0.87×2 + $9.27×1 + $8.31×1)
◼ FNPT elbow ($3.53×2)
◼ Hose Adapter ($1.74×1 + $1.18×1)
◼ Flexible hose ($28.61×4)
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Total : $906.03 without tax & delivery fees
Total cost (Update)
Tanks Check valve 2-Way solenoid
Motorized Ball Straight MNPT T-shaped FNPT Pipe fittings FNPT elbow Hose Adapter
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Previous week content
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Parts searched in the previous week
Reference
Schematic for experimental set-up
3 [hp]
compressor
20 [gal]
Reserve tank 30 [gal]
Receiver tank 2-way
Solenoid
2-way Solenoid
Check valve Check
valve Two
2-way Solenoid 2-way
Solenoid
ConnectorPipe ConnectorPipe
ConnectorPipe
Inlet part is modified
Motorized Ball valve
End-use
Current experimental set-up
Computer that can be used for DAQ
All the piping and DAQ system will be
installed here
Receiver Tank
will be placed here Reserve Tank
will be placed here
Schematic for experimental set-up
Compressor Pump
DAQ setup Inlet piping setup
Power Supply
: Flexible hose : Steel Pipe
(Galvanized)
16’’ 18’’ 14’’
Outlet piping setup
¾’’ FNPT (3’’)
¾’’ MNPT
(6’’) ¾’’ MNPT
(6’’)
¾’’ FNPT 90︒ elbow
¾’’ MNPT
(10’’) ¾’’ MNPT
(6’’)
¾’’ FNPT (3.2’’)
2 ¾’’ FNPT (3.2’’)
¾’’ FNPT (3’’)
¾’’ MNPT (3.5’’)
¾’’ MNPT (3.5’’)
¾’’ MNPT (6’’)
2
¾’’ FNPT (3.2’’)
¾’’ MNPT (3’’)
¾’’ MNPT
(3’’) ¾’’ FNPT (3’’)
¾’’ FNPT (3’’)
¾’’ FNPT (3’’)
2 2
¾’’ FNPT 90︒ elbow
¾’’ MNPT (3.5’’)
¾’’ MNPT (3.5’’)
¾’’ FNPT (3’’)
¾’’ FNPT (3’’)
¾’’ MNPT (6’’)
: T-shaped connector (Galvanized)
: 2-way Solenoid valve
: Check valve
Air OUT
: Push-to connect
& male adapter
: Motorized ball valve
M
Power Supply ¾’’ FNPT
(3.2’’)
¾’’ FNPT (3.2’’)
29’’
: Pressure transducer (sensor)
¾’’ MNPT
(3’’) ¾’’ MNPT
(3’’)
¾’’ FNPT (3’’)
¾’’ FNPT (3’’)
¾’’ MNPT (3’’)
¾’’×¾’’ NPTF (48’’)
¾’’×¾’’ NPTF (48’’)
¾’’×¾’’ NPTF (48’’)
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Price : $ 20.61/each
◼ Need 6 valves
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Model : uxcell DC 12V 2W200-20 NPT 3/4 inches Normally Closed 2-Way N/C Brass Solenoid Valve for Water Air Gas Fuels
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Size : 3/4" NPT thread (ID=3/4’’, OD=1.05’’)
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Working temperature : 23 [℉] ~ 176 [℉]
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Max. pressure : 142 [psi]s
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Allowable flow : Unknown
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Open/Close time : Unknown
◼ Comparable priced products were recorded to be less than 1 sec
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Ideal current needed : 2 [A]?
Update to the parts (2-way solenoid valve)
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Price : $ 42.99/each
◼ Need 1 valve
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Model : 3/4" Brass Electrical Motorized Ball Valve with Standard Port, 9-24V AC/DC
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Size : ID = 3/4’’(3/4 [in] NPT threading)
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Working temperature : 32 [℉] ~ 194 [℉]
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Max. pressure : 145 [psi]
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Allowable flow : Unknown
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Open/Close time : 3-5 seconds to fully open/close
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Working Voltage : 9~24V AC/DC
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Max Power : 2 [W] → 83 [mA] ~ requires 222 [mA]
Update to the parts (Motorized ball valve for End-use)
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Receiver Tank - 30 [gal]
◼ Price : $ 314.99 ~ $ 476.99
◼ Model : Campbell Hausfeld (AR8035)
◼ Max. allowable working pressure : 175~200 [psi]
◼ Weight : 74.8 [lb] ~ 166 [lb]
◼ Need to consider proper outlet fitting size
➢ For ¾ [in] pipes
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Reserve Tank – 20 [gal]
◼ Price : $ 194.15
◼ Model : Industrial Air (IT20ASME)
◼ Max. allowable working pressure : 175 [psi]
◼ Weight : 64 [lb]
◼ Need to consider proper outlet fitting size
➢ Outlet port : ¼ [in.] → converter for ID: ¾ [in] pipes
Air tank
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Lines connected to compressor pump & outlet areas
◼ Flexible hose already in possession from the department
◼ O.D. : ¼ [in]
◼ Max. pressure : 300 [psi]
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For other parts that are to use flexible hose (EPDM)
◼ Price : $28.61 per 4 [ft],
◼ I.D. : ¾ [in], O.D. : 1 3
16 [in]
◼ Working Temperature : -40 ℉ ~ 200 ℉
◼ Working pressure : 300 [psi] at 70 ℉
◼ Max. flow rate : N/A
◼ May need
