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Partial Hydrogen Injection

Partial Hydrogen Injection. Group II Justin Bruyn , Andrew Cammorata , Myles Moore, & Chris Sandini 4-21-2010. What is the purpose of this project?. To investigate partial hydrogen injection (PHI) and the effect it has on internal combustion engines. How does it increase efficiency?.

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Partial Hydrogen Injection

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  1. Partial Hydrogen Injection Group II Justin Bruyn, Andrew Cammorata, Myles Moore, & Chris Sandini 4-21-2010

  2. What is the purpose of this project? • To investigate partial hydrogen injection (PHI) and the effect it has on internal combustion engines. • How does it increase efficiency?

  3. Results System Testing System Design & Construction Background Research on Existing Systems

  4. What is PHI? Hydrogen to Motor Electricity from Alternator

  5. Quenching Distance

  6. Wet Cell vs Dry Cell

  7. Wet Cell Anatomy • Electrode housing also acts as the reservoir • Electrodes are fully or partially submerged in electrolyte solution • Edges of the electrode plates are open to the electrolyte bath • Tend to be very inefficient

  8. Current Leakage • The biggest flaw in a wet cell system is the current loss through the edges of the electrode plates. • The electrolyte being charged outside of the active area of the cells plates does not produce hydrogen. • This current leakage makes the wet cell very inefficient.

  9. Dry Cell Anatomy • Electrolyte reservoir is separated from the cell and is also used as a bubbler for the HHO gas • Holes in the cell plates allow for the electrolyte solution to travel through the system and gas to exit • Greatly increases efficiency by reducing parasytic current loss that occurs at the edges of the plates • By having a constant circulation of the electrolyte solution through the cell, we decrease the operating temperatures

  10. Electrolytes What is an electrolyte? Why do we need to use an electrolyte? What different types of electrolytes do we have to choose from? Why did we choose what we did?

  11. What is an electrolyte? Potassium Hydroxide

  12. What are our choices?

  13. Why do we need to use an electrolyte?

  14. Why did we choose KOH? KOH(s) → K+(aq) + OH–(aq) • Advantages: • Electrodes stay clean due to KOH’s minimal reactive nature with 316L Stainless Steel. • Strong and pure electrolyte. • Found readily available at Home Depot. • Disadvantages: • Dangerous to work with.

  15. System Design Criteria • Component materials MUST… • be resistant to corrosion in electrolyte solution. • perform well in temperatures ranging from -20°C to upwards of 70°C. • maintain structural integrity under compressive load. • Low electrical resistance through stack.

  16. Gasket Sealing Load D = diameter P =ρgh = max pressure in vessel b = gasket width

  17. Gasket Deformation Under Load F = force L = gasket thickness A = area of gasket E = gasket modulus of elasticity

  18. Endplate Deflection Calculation

  19. Bill of Materials • 2 ½” Acrylic Endplates • 7 1/16” 316L SS Mid Plates • 8 Gaskets • 12 Bolts (1/4” – 20 x 2.5”) • 12 Nuts (1/4” – 20 ) • 24 Washers • 12 Nylon sleeves

  20. The Test

  21. Given more time, we would… • Analyze the engine performance with and without stack. • Play with electrode hole sizing and placement to find the best balance between flow through cell, greatest surface area, and least amount of current leakage. • Tested many different electrolyte solutions to determine the most optimal one for our application. • Tested the system in a car if the results in a controlled environment proved significant enough to be worthwhile. • Had the dry cell professionally machined and assembled with the exact parts and materials specified. Conclusion In conclusion we were successful in the objectives we sought after which were to investigate partial hydrogen injection and the effects it would have on an internal combustion engine. Our cell has proved to produce a significant amount of hydrogen and through our thorough research we have determined that it would increase the efficiency of an internal combustion engine.

  22. Bibliography 1. Zero. FAQ. Zero Fossil Fuel. [Online] [Cited: March 30, 2010.] http://alt-nrg.org/faq.html. 2. HHO Generator Resource Center. [Online] Dec. 28, 2009. [Cited: Feb. 5, 2010.] http://www.hhogenerator.com/hho-and-the-energy-market-olympic-hydrogen-ti-hho-generators/. 3. Chemical Compatability. Cole-Palmer. [Online] [Cited: Feb. 3, 2010.] http://www.coleparmer.com/techinfo/ChemComp.asp. 4. Dorf, Richard C.The Engineering Handbook, Second Edition. 2004. ISBN 978-0-8493-1586-2. 5. Cerini, John Housman and D.J.On-Board Hydrogen Generator for a Partial Hydrogen Injection Internal Combustion Engine. New York, New York : Society of Automotive Engineers, Inc., 1974. 6. Mott, Robert L.Machine Elements in Machine Design, Fourth Edition. Upper Saddle River, New Jersey : Pearson Education, Inc., 2004. ISBN 0-13-161885-3. 7. MatWeb. [Online] [Cited: Feb. 4, 2010.] http://www.matweb.com.

  23. The following is the slide junk yard

  24. H₂ + 0₂ TO AIR INTAKE OF ENGINE NEGATIVE ELECTRODE ELECTROLYTE SOLUTION POSITIVE ELECTRODE Basic Water Electrolysis

  25. Wet Cell vs Dry Cell

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