Handheld Flow Calibrator presented by Jonathan Ma Yung

Handheld Flow Calibrator presented by Jonathan Ma, Yung Nguyen, Mario Zuniga Project Advisor | Craig Corrigan Course Advisor | Jan Kleissl Progress Report MAE 126 B | Project E 5 May 31 st, 2013 Project E 5 | Handheld Flow Calibrator

Project Objectives & Progress Summary OBJECTIVES Develop a cost-effective and highly accurate low flow calibrator that utilizes two separated methods to measure mass flow rate and volumetric flow rate. • PROJECT DESCRIPTION JYMeter Abs. Pressure Density Volumetric Flow Rate Absolute Pressure Sensor Temperature, Humidity, Differential Pressure “JYMeter” Project E 5 | Handheld Flow Calibrator Mass Flow Rate Volumetric Flow Rate (from DP) * density Mass Flow Rate Sensor

Project Tasks • • 1. Research 2. Calculation & Engineering Design • Volumetric flow methods • Mass flow methods Estimate the appropriate size materials Understanding resolutions and analog signals communication 1. 2. 3. Hardware & Fabrications 3. 4. 5. 6. 4. Calibrate the calibrator Project E 5 | Handheld Flow Calibrator Integrate DP Sensor, Mass flow, Humidity Integrate Temp & Abs. Pressure Sensor Oversampling Programming Conditioning the tubes Finding appropriate Length Put everything into photoboard 1 L/Min Flow 1. Perform Procedures 1. 1 & 1. 2 (Basic Calibration) 1. DP 2. Mass Flow 3. Temperature, Humidity 4. Abs. Pressure

Research| Numerical Analysis VOLUMETRIC FLOW RATE : DIFFERENTIAL PRESSURE METHOD Laminar Flow Element Poiseuille Equation obtain calibration equation from calibration experiment Project E 5 | Handheld Flow Calibrator Source: www. alicat. com

Design | Numerical Analysis VOLUMETRIC FLOW RATE : DIFFERENTIAL PRESSURE METHOD Poiseuille Equation Low Flow Rate (1 L/min) Calculation – Single Tube Higher Flow Rate (10 L/min) Calculation – LFE Model Project E 5 | Handheld Flow Calibrator Source: www. alicat. com

Research |Numerical Analysis MASS FLOW METHOD: CONSTANT TEMPERATURE DIFFERENTIAL } Mass Flow Meter Þ No calculation Þ Mainly Calibrations m* (mass flow rate) Project E 5 | Handheld Flow Calibrator Source: www. absoluteastronomy. com

Prototyping| Fabrication Progress From Midterm Report| Initial Concept Design Project E 5 | Handheld Flow Calibrator

Prototyping| Fabrication Progress Final Protoboard Design Project E 5 | Handheld Flow Calibrator

Prototyping| Fabrication Progress A Closer Look Project E 5 | Handheld Flow Calibrator

Prototyping | Fabrication Progress SOFTWARE : OVERSAMPLING Displays: • Average of 50 readings for noise reduction • Average of entire run for data analysis Using Method of Weighted Averages Project E 5 | Handheld Flow Calibrator

Experiment | Calibration Experimental Set-Up Project E 5 | Handheld Flow Calibrator

Experiment | Calibration Set-Up Project E 5 | Handheld Flow Calibrator

Experiment| Preliminary Tube Set-Up Project E 5 | Handheld Flow Calibrator

Experiment | Preliminary Calibrations Volumetric Flow Rate: Calibration For Differential Pressure Sensor DP: Calibration with Straight 17 cm Tapered VFR Theoretical Experimental Data with Gilibrator Linear(VFR Theoretical) Linear(Experimental Data with Gilibrator) 1200 R 2 = 0, 9976 1000 800 600 R 2 = 1 400 200 0 0 1 1 Project E 5 | Handheld Flow Calibrator 2 2 3 3 Source: I&EC Fundamentals, Vol 6 , No. 4

Experiment | Preliminary Calibrations Mass Flow Rate: Calibrating Mass Flow Sensor Procedure 1. 1 | Mass Flow Rate Sensor Calibration JYM Data. Sheet Poly. (JYM) Poly. (Data. Sheet) 3 R 2 = 0, 9997 Voltage (V) 2, 5 2 1, 5 1 R 2 = 1 0, 5 0 0 200 400 600 800 Volumetric Flow Rate (ccm) Project E 5 | Handheld Flow Calibrator 1000 1200 Source: I&EC Fundamentals, Vol 6 , No. 4

Experiment | Preliminary Calibrations Mass Flow Rate: Calibrating Mass Flow Sensor Mass Flow Rate Calibration JYMeter 1200 Gilibrator Flow Rate 1000 800 600 400 200 0 1 2 3 4 Trial Set 5 6 7 Summary of Findings During Calibration • Offset due to the pump, not as efficient. • Temperature of the air changes. Project E 5 | Handheld Flow Calibrator Source: I&EC Fundamentals, Vol 6 , No. 4

Project Management & Work Schedule Week Projected Tasks from the Beginning Tasks 1 Microcontrollers & Volumetric & Mass Flow Research 2 Setting up the Arduino & Sensor Characteristic Research 3 Numerical Analysis of Device Components (non-sensor related) 4 Initial Concept Design & Sensor Integration 5 Prototyping Calibrator for Experimental Data Input/Output Programming Prototyping ((Received Basic Arduino Stuff + Windsesnor), Stock Room Shopping Trip #1 6 Functionality Testing Prototyping (Waiting for Craig or order DP&Mass flow sensor) 7 Enclosure Integration Prototyping / Craig asked for re-design of 10 L/min. 8 Competitive Comparison with Gilibrator Prototyping (Waiting for Mc. Master Order), Stock Room Shopping Trip #2, Craig gave us Gilibrator, Began Calibration Test Run 9 Altitude Testing Prototyping (Waiting for Sparkfun & Digikey final order), Calibrated DP & Mass Flow, Fabrication All Connections 10 Evaluation Finish prototype + last calibration experiment + Enclosure Project E 5 | Handheld Flow Calibrator

Remaining Project Tasks • • 1. Research 2. Calculation & Engineering Design • Volumetric flow methods • Mass flow methods Estimate the appropriate size materials Understanding resolutions and analog signals communication 1. 2. 3. Hardware & Fabrications 3. 4. 5. 6. 4. Calibrate the calibrator Project E 5 | Handheld Flow Calibrator Integrate DP Sensor, Mass flow, Humidity Integrate Temp & Abs. Pressure Sensor Oversampling Programming Conditioning the tubes Finding appropriate Length Put everything into photoboard 1 L/Min Flow 1. Perform Procedures 1. 1 & 1. 2 (Basic Calibration) 1. DP 2. Mass Flow 3. Temperature, Humidity 4. Abs. Pressure

THE END. Questions? Assignments Research • Hardware & Components - Jonathan • Mass Flow Methods - Mario • Volumetric Flow Methods – Yung Prototyping • Programming – Mario/Jonathan • Numerical Analysis – Yung • Circuit Set-Up – Mario/Jonathan • Fabrication – Team Calibration – Team • Gilibrator Operation • Data Analysis • Testing & Turning Project E 5 | Handheld Flow Calibrator