1 / 12

Designing and Optimizing a Multistage Hydrogen Pump

Designing and Optimizing a Multistage Hydrogen Pump. Stephanie Noble Advisor: Professor Benziger REU Partner: Chelsea Bonetti. Goals and Motivation. Optimizing a Hydrogen Pump to Conserve Energy. WHAT:. Confirm theoretical performance of previous Multi-Stage Pump.

kaycee
Download Presentation

Designing and Optimizing a Multistage Hydrogen Pump

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Designing and Optimizing a Multistage Hydrogen Pump Stephanie Noble Advisor: Professor Benziger REU Partner: Chelsea Bonetti

  2. Goals and Motivation Optimizing a Hydrogen Pump to Conserve Energy WHAT: • Confirm theoretical performance of previous Multi-Stage Pump. • Design and optimize our own Multi-Stage Pump. • Efficient/Effective • Portable • Minimal Energy Loss WHY: • Obtainun-polluted fuel (H2) andpure waste (CO2) • Prove theoretical high energy efficiencies with multi-stage design.

  3. How a Hydrogen Pump Works A Chemical Perspective 3H2/ CO2 Polymer Electrolyte Polymer Electrolyte H+ H+ • Process • Gases Enter • Hydrogen/Carbon Mix • Protons Cross Membrane • Electrochemical Pumping Process • Leftover Gas Exits • In a Multi-Stagepump, these pass to the nextstage. • New CO2/H2 Ratio. Anode Anode Cathode Cathode (3-x) - y H2/ CO2 y H2 x H2 e- e- (3-x)H2/ CO2

  4. Why a Hydrogen Pump? It’s Customizable! A Comparison with the Conventional System Hydrogen Pump • Single-Stage • Advantages • High Degree of Separation • Low Temperature Operation • Acts as a Pump • Disadvantages • Lower Efficiency • Serpentine flow • (previous models) • BUT!... Multi-Stage • Same Advantages • Higher Theoretical Efficiency

  5. Assembly of a Hydrogen Pump Brief Procedure

  6. Linear Hydrogen Pump Design Challenges and Final Product • STRENGTHS: • Durable • Thorough Mixing • Ease-of-use • WEAKNESSES: • Difficult Screw Insulators • Weak Luer Locks • Uneven Pressure Distribution

  7. Our Design: Efficiency Efficiency, Extent of Separation vs. Voltage More efficient than Commercial Current @ 0.8 V and Pure H2: Our Design: 1.31 A Commercial: ~0.7 A

  8. Optimization Parameters Customizing a Single Unit Current vs. Voltage (Different C/H Ratios) • Why is there an optimum voltage? • Hydrogen can only cross the membrane so fast • Limiting diffusion to and across the membrane • What controls where the optimum occurs? • Rate at which Hydrogen contacts the Membrane • Feed: C/H Ratio, Flow rate

  9. Data Analysis Analytical Program Set Parameters Analyze Data Set Optimum Values of Each Stage

  10. Data Analysis Optimization Program • Prepare Program Parameters • Determine desired trends. • Feed Condition Optimal Voltage • Fit with parameters determined experimentally. • Design Program • Report Optimal Voltage from Trend • Alter Feed Conditions based on Previous Stages

  11. Conclusion What’s next? Separate-Stage Design • Increased effectiveness, durability, and ease-of use Program for Multi-Stage Analysis • Observe efficiency/operation of both individual stages and Overall Process • Separate Program for Optimizing a Single Stage Confirmation of Theoretical Process • Observed similar trends • However, more Conclusive Results TBD • Our Design and Program facilitate future Confirmation Multi-Stage Hydrogen Pump: The Future of Green Energy Production

  12. Special Thanks to: Professor Jay Benziger May Jean Cheah Eric Gauthier Xuemei Wu PRISM/PCCM PEI Grand Challenges Program

More Related