heat sink analysis: analytically and via ansys
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Heat sink analysis: analytically and via ANSYS. ME 340 Final Project - Dr. Soloviev - Fall 2010 by Mathew Marshal & Kevin Hoopes. Problem definition. Intel core i7 processors can dissipate up to 130W under full load They must be kept below 373 K to prevent hardware damage - PowerPoint PPT PresentationTRANSCRIPT
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Heat sink analysis: analytically and via ANSYS
ME 340 Final Project - Dr. Soloviev - Fall 2010by
Mathew Marshal & Kevin Hoopes
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Problem definition•Intel core i7 processors can dissipate up to 130W under full load•They must be kept below 373 K to prevent hardware damage• We are given a certain rectangular fin, integral heat sink•Find the required convection coefficient to keep the base below 373 K.
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Boundary Conditions•Base exposed to constant heat input of 130W•Sides of base are adiabatic•Sides and tops of fins are exposed to convective heat transfer to surrounding atmosphere at 298 K•Heat sink is solid Aluminum
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ANSYS Solution•Define Geometry•Apply boundary conditions•Mesh•Solve
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ANSYS Solution•Results obtained for initial guess for h•Iterated until base temperature reached approximately 373 K•h value found to be 37.6 W*K/m^2
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Analytical Solution•h = 39.8 W*K/m^2
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Summary•ANSYS Solution – 37.5•Analytical Solution – 39.8
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Appendix Analytical Solution ANSYS Log file
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