Flow Visualization. Detailed Design Review 2/15/08

Transcription

1 Flow Visualization Detailed Design Review 2/15/08

2 Team Allen Luccitti Kyle Hadcock Mark Bacon Steve Sedensky

3 Topics of Review Customer needs Design specifications Bill of material Pump design Flow loop design Hardware and control system

4 Needs Classification Needs Grade 1 Pump 1.1 Optically clear housing Interchangable Impeller / Housing Adaptable to PIV equipment 9 2 Measurement 2.1 Pressure rise and inlet pressure Mass Flow Pump Temp Current & Voltage Compatible with LDV, PIV RPM Vibration 1 3 Cart 3.1 Fits through standard door frame Portable / Stable 3 4 Control System 4.1 Labview GUI Read / Monitor Sensors Control Pump Speed High speed image capture 6 5 Safety 5.1 Material Housing Pump Safety Meets applicable safety regulations 3 6 Maintenance & Service 6.1 Documentation Helpfile within Labview Cleaning Instructions / Maintenance Schedule 3

5 Design Specifications Specification Customer Need Unit of Marginal Design Specification Importance Number Number Measure Value Ideal Value Pump Housing is optically clear 9 Transmisivity 75% >=85% Able to change housing/impellors with minimal time 3 minutes Inlet and outlet pump differential pressure can be monitored accurately 9 PSI Volume flow through system can be monitored accurately 9 GPM Pump Temperature and Fluid temperature can be measured accurately 1 C +/- 1 +/ Motor RPM can be measured accurately 3 % Full Scale Pump vibration can be monitored accurately 1 Hz +/- 3 +/ Assembled test rig fits through standard sized door 3 inches Able to control pump speed 3 RPM +/- 1 +/ Able to capture high speed images of internal pump flow 1 Frames/sec Test rig includes maintence / cleaning documentation 3 yes yes

6 Pump Bill of Materials Description Supplier/vendor Part Number Qty Unit Cost Cost 5/8" to 1/2" shaft coupling McMaster 6208K14 1 $30.40 $ /4"OD 1/2" Dowel Pins McMaster 9735A171 7 $9.62 $67.34 Bearing, 1/2" Bore, Mounted Grainger VPLS $42.40 $ ' Viton 1/4" cordstock (gasket) McMaster 96515K45 10 ft $4.30 $43.00 Subtotal: $ Aluminum 2" x 8" x 8" McMaster 9246K15 2 $94.12 $ Aluminum 1/4" x 20" x 5" McMaster 8973K43 1 $58.64 $58.64 Aluminum 2" x 6" x 4" McMaster 8509K81 1 $ $ Cast Acrylic 1.5" x 12" x 12" McMaster 8560K912 2 $54.16 $ Subtotal: $ Misc Hardware $50.00 $50.00 Total: $731.55

7 Plumbing Bill Of Materials Item QTY unit cost total cost Clear PVC 3/4" 10ft Clear PVC 1.5" 10ft Reservoir 26 gallons /4" ball valve " ball valve /4" tee 10 pk /4" thread cap ends " bulkhead fitting " male thread end " pvc pipe 10 ft /4" pipe mount " pipe mount Ancilary ball valve Barbed hose fittings clear ancilary hose 3/8 in /4" to 1.5" reduction " 90 degree elbow inlet barbs PVC Cement Total

8 Hardware Bill of Materials Description Vendor Part Number QTY Ea. Total Complete Computer System Dell Inspiron $ $ Tachometer -PU-E (Bolt-On Hall Effect Sensor)Dart Controls PU-E2 1 $ $ Paddlewheel Flow & Temperature Sensor/Transmitter Omega FP $ $ High Accuracy Wet/Wet Differential Pressure Transmitter Omega PX81D1-005DI 1 $ $ Low-Cost Multifunction DAQ for USB National Instruments NI USB $ $ Pressure Transmitter (Inlet) Omega PX209 1 $ $ V Vdc Power Supply Omega FPW-15 1 $ $ V Vdc Power Supply omega PSS-D12A 1 $ $ MDII Series, Motor Controller Dart Controls, Inc. MD30E 1 $ $ Motor Baldor 1 $ $ Grand Total $ 3,841.50

9 System Architecture

10 Selected Motor Baldor motor 0.75 HP 1750 RPM

11 Pump Housing

12 Pump Housing

13 Pump Performance Estimation 1750 RPM Motor 80 Pump Performance H= Head Q=Flow D= Impeller Diameter Total Head (ft) Flow (gpm) 9 inch impeller 4 inch impller 6 inch impeller

14 Gasket / Seal

15 Material Selection Materials are sorted based on Refractive Index to determine which solid liquid pairs are the best candidates.

16 Flow Loop Main Pump Sensors Sensors Air Valve Prime Pump Prime Valve Drain Valve Ball Valve Throttle Reservoir

17 Flow Design

18 Hardware Architecture Data Acquisition Hardware PC NI USB DAQ High Speed Camera LabVIEW User Interface Volumetric Flow Rate Differential Pressure Tachometer Temperature Gauge Pressure 2000 fps Fluid Inlet/Outlet Motor Fluid Into Pump 0-50gpm 0-20 psi RPM C 0-30 psi

19 Computer System Dell Inspiron 530 -Cost effective, reliable -Ability to run LabVIEW and all control software

20 Tachometer Selection Dart Controls, Inc. Hall Effect ( RPM) - Easiest to use (we can tap back end of motor shaft, otherwise not applicable - Simple integration into motor controller for RPM feedback

21 Flow Sensor/Temperature Sensor Omega, Inc. -Incorporates volumetric flow and temperature readings -Simple integration (0-5V) -Comes with PVC connector GPM range C range

22 Differential Pressure Omega, Inc. -Will monitor pump inlet and outlet - Industry standard 0-5 output -1 NPT port for pump inlet -1 NPT port for pump outlet -Only measures pressure difference between points, not individually. -Chosen to improve overall accuracy, rather than 2 sensors cumulative error

23 Gauge Pressure Omega, Inc. -Industry standard 0-5V output -1 NPT port for pump inlet pressure

24 Data Acquisition National Instruments, Inc. -Can accept up to 8 inputs, only 4 needed. -Enough for this project and allows for future component upgrades -Simplifies sensor integration with native LabVIEW support

25 Motor Controller Dart Controls, Inc. MDII Series -Uses feedback from Hall-Effect sensor -Communicates to PC via RS-232 -Allows for remote control from PC -Allows for LabVIEW control -Closed loop feedback maintains RPM to +/-1 RPM