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Innovative Electricity Generation at Ocean-Air Interface Using Peltier Units

This document outlines a procedure for generating electricity at the ocean-air interface using Peltier units. Key steps include calibrating thermocouples, verifying temperatures, and calculating average temperature differences. It covers the selection of a Peltier unit, the number required for a 12V output, the associated costs, and space requirements, comparing these values to those from geothermal sources like geysers and hydrothermal vents. It also explores practical applications, such as emergency power solutions and equipment charging, utilizing heat from the sun and ocean.

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Innovative Electricity Generation at Ocean-Air Interface Using Peltier Units

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  1. Generating Electricity at Ocean-Air Interface Ari Morse and Cody Nabong

  2. Procedure • Calibrate thermocouples. • Verify online temperatures. • Calculate average temperature difference. • Choose example Peltier unit. • Calculate # Peltier units, cost, and space required. • Compared to same values for geysers and hydrothermal vents.

  3. Thermocouple Calibration and Example Peltier Unit • V = 4 x 10-5(T) - 3x10-5 Volts • 127 thermocouples / unit • $8.50 / unit • 30mm x 30mm planar area required / unit _ + x ~16

  4. Temperature Verification and Modeling

  5. Ocean Temperature differences • Average yearly temperature difference of 10.9 C for Charles river. • DC voltage output for 1 TC= 4.05 x 10-4 Volts • # Peltier units needed to provide 12V = 233.3 • Cost = $1983.31 • Area required = .21 m2 = 2.26 ft2 http://www.katheckenbach.com/2012/11/not-yet-ocean.html

  6. Possible Uses Heat from sun Boats • Starter • Radios/equipment • Power boat • Possible "hot pocket" Emergency Ocean Blanket • Rolls up for storage • Unroll and throw in ocean for emergency power Hotter air Cold water = Floatation device

  7. Sky Sky Warmer Colder Ocean Warmer Colder

  8. Geysers • Temperature difference of 138 C for Old Faithful and very cold air. • DC voltage output for 1 TC= 5.49 x 10-3 Volts • # Peltier units needed to provide 12V = 17.2 • Cost = $146.29 • Area required = .17 ft2 http://www.treknature.com/gallery/photo63324.htm

  9. Vents • The thermocouple we calibrated has a maximum temperature of 350o C. • The water exiting ocean vents can exceed this, and the surrounding ocean water is 2o C • DC voltage output for 1 TC= 1.39 x 10-2 Volts • # Peltier units needed to provide 12V = 6.8 • Cost = $57.82 • Area required = .07 ft2 http://faculty.cascadia.edu/jvanleer/astro%20sum01/Hyrothremal%20Vent%20Final/hydrothermal_vents.htm

  10. Summary for 12V Requirement

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