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Hybrid PC Cooling

Hybrid PC Cooling. Joseph Sanches Philip Modin. Background. Computer enthusiasts often push their system’s performance to its limits. Exceeding default settings causes excessive heat buildup, which may cause components to fail. Problem Statement.

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Hybrid PC Cooling

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  1. Hybrid PC Cooling Joseph Sanches Philip Modin

  2. Background • Computer enthusiasts often push their system’s performance to its limits. Exceeding default settings causes excessive heat buildup, which may cause components to fail.

  3. Problem Statement • A lack or malfunction of proper cooling may cause permanent damage to computer components. A powerful and reliable solution is needed to meet the demands of the high end user community.

  4. Initial Research • Articles • Patents • Solutions

  5. How Liquid Cooled PCs Work • Article Summary: • The article lists five major components of liquid cooling a computer, as well as an introduction to the concept and references to alternatives to liquid cooling a computer. The five major components of liquid cooling a computer are broken down into heat sinks, parts, pumps and radiator, reservoirs and tubing, and coolant liquid. • Article Critique:  • The article was written very well and the author cited their sources very well. The article covered the concept well, but could have gone into more specifics, especially with materials and methods. The article was helpful, and the sources cited may prove to be useful in later stages of the project. • Attack Path: • Technical • Article in APA Citation format: • Wilson, T. (n.d.). How liquid-cooled pcs work. Retrieved from http://computer.howstuffworks.com/liquid-cooled-pc.htm

  6. Mineral Oil Cooled PC • Article Summary: • A custom computer company, Puget Systems, built a computer that was submerged in mineral oil as its primary cooling system. The article provides performance data and the company’s justification for constructing the project. It was formatted much like a lab report would be formatted; there was an intro with their thesis of what they predicted would happen followed by their procedures and performance result. A conclusion was written that accounted for any externalities that could have affected the project and what they would have done differently. • Article Critique: • The article provided useful information regarding the performance of the system. It provided pictures which helped explain many of the concepts, and prove its legitimacy. Good primary source document. • Attack Path: • Technical • Article in APA Citation format: • Bach, J. (2007, May 7). Mineral oil cooled pc.Retrieved from http://www.pugetsystems.com/submerged.php

  7. Computer Cooling Fan Vibration Isolation Apparatus • Patent: 5208730 • Filed: October 28, 1992 • Awarded May 4, 1993 • Inventor: Mark S. Tray • Assignee: Compaq Computer Corporation • Houston, TX • Purpose: Isolates fan vibration from case and • other components.

  8. Converging Cooling Duct for a Computer Cooling System • Patent: 6587335 • Filed: June 3, 2000 • Awarded: July 3, 2010 • Inventors: Daryl J. Nelson; Steve J. Loflnad; Eric J. Salskov • Assignee: Intel Corporation • Purpose: Draw in cool air from outside to cool a component.

  9. Compact High Power Personal Computer with Improved Air Cooling System • Patent: 5218514 • Filed: Jul 10, 1992 • Awarded: Jun 8, 1993 • Inventors: Duy Q. Huynh; Prabhakara R. Vadapalli • Assignee: International Business Machines Corporation • Armonk, N.Y. • Purpose: Arrange the computer component layout so that • air can easily travel from front to back while using • a minimal amount of fans. 5218514

  10. Liquid Cooling • Pros • Extremely effective • Aesthetics • Cons • Inefficient • Moving parts • Fluid needs to be replaced • Expensive

  11. Passive • Pros • Silent • No electricity required • Cons • Can’t cool demanding hardware • Large size

  12. Fan Controller Cards • Pros • Alarm to alert critical temperature • Support about 5 fans • Cons • Do not control pumps • Use 5.25” bays or PCI slots

  13. Decision Analysis • Must and Nice to Have • Sketched Solutions • Decision Analysis • Specifications

  14. Must & Nice to Have

  15. Heat Pipe Net • HPN

  16. Heat Sink Cooling Head • HSCH Heat Sink

  17. Liquid Gas Heat Pipe Heat Sink Hybrid • LGHPHSH

  18. Decision Matrix

  19. Specifications

  20. Science and Mathematics • Fourier’s Law • Materials

  21. Fourier’s Law Conductive Heat Transfer • q = k A dT / s • q = quantity of heat (energy) (watts) • k = Thermal conductivity (W/m.K or W/m oC, Btu/(hr oF ft)) • A = Heat transfer area (m2, ft2) • dT = Difference in temperature (K or oC, oF) • s = Material thickness (m, ft)

  22. Materials • Aluminum • 44 Btu/(hr oF ft2/ft) • Melting temperature 1220˚C • Copper-Brass • 64 Btu/(hr oF ft2/ft) • Melting temperature 1083˚C • Steel • Various grades of steel produce different results

  23. Summary Background Initial Research Decision Analysis Science and Mathematics

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