{"id":51002,"key":"Thermal_Phone_Charger","title":"Thermal Phone Charger","latest":{"id":1092796,"timestamp":"2024-02-28T12:51:07Z"},"content_model":"wikitext","license":{"url":"https://www.appropedia.org/Appropedia:Copyrights","title":"CC-BY-SA-4.0"},"source":"[[File:Thermo gen final version for now .JPG|thumb]]\n\n{{Project data\n| authors = User:Gem30\n| made = Yes\n| replicated = No\n| cost = USD 110.63\n}}\n\n<center>This is a Thermal Generator to charge a cell phone made for Engineering 371 at Cal Poly Humboldt ''</center>\n\n== Parts ==\n\n[[File:Thermo gen final version for now .JPG|thumb|Thermal Electric Generator]]\n\n• 4 in. X 12 in. piece of aluminum (1/4 in. thick)\n\n• TEG module\n\n• Step up voltage converter (MAX756EPA+(joule thief) – 5VDC from 0.7 volts in\n\n• 12 V fan (too much, need a 5V)\n\n• Parallel board\n\n• Solder\n \n• Sterno\n\n• Thermal Paste\n\n• Fan\n\n• Heat sink\n\n• Car exhaust gasket\n\n• (2) springs (size 16)\n\n== How to Build ==\n\n{{Step\n| number = 1\n| text = Gather your needed parts and supplies. Also you will need these tools.\nTools Used:\nSocket set,\nSawhorses,\nHacksaw (or equivalent),\nHammer,\nAdjustable wrenches,\nHex key wrenches,\nPliers,\nClamps,\nDrill and bits,\nGrinder ( or equivalent),\nWire stripper,\nsoldering iron\ncont...\n| image = File:Thermo_gen_1.JPG\n| caption = Figure 1: Baseplate cleaned and Drilled (Photo by Garrett McElroy)\n}}\n\n{{Step\n| number = 2\n| text = Cut and drill exhaust gasket\n| image = File:Thermo_gen_4.JPG\n| caption = Figure 2:Cut and drill exhaust gasket. (Photo by Garrett McElroy )\n}}\n\n{{Step\n| number = 3\n| text = I measured, cut and drilled the holes for the mounting to base plate and made sure to have it fit the TEG module perfectly .\n| image = File:20131127 132100.jpg\n| caption = Figure 3: Fit TEG Module. (Photo by Garrett McElroy )\n}}\n\n{{Step\n| number = 4\n| text = Here is the TEG module with light shining through to show semiconductor it contains.\n| image = File:Thermo gen 5.JPG\n| caption = Figure 4: TEG Module. (Photo by Garrett McElroy )\n}}\n\n{{Step\n| number = 5\n| text = Holes drilled and taped to hold heatsink to TEG Module.\n| image = File:20131127 131134.jpg\n| caption = Figure 5: Holes and springs mounted to hold heatsink (Photo by Garrett McElroy )\n}}\n\n{{Step\n| number = 6\n| text = Heatsink mounted using springs and thermal paste added on all surfaces between TEG module and Heatsink\n| image = File:20131127 134137.jpg\n| caption = Figure 6: Springs mounted. (Photo by Garrett McElroy )\n}}\n\n{{Step\n| number = 7\n| text = Version 1: Circuit board containing parallel board, 12v step-up, USB 5v charger\n| image = File:20131130 170408.jpg\n| caption = Figure 7: Version 1 . (Photo by Garrett McElroy )\n}}\n\n{{Step\n| number = 8\n| text = Version 2: We realized that more cooling was needed so we added another circuit to run some smaller 5v fans.\n| image = File:Genthermo4.JPG\n| caption = Figure 8: Version 2. (Photo by Garrett McElroy )\n}}\n\n== Costs ==\n\n{| class=\"wikitable sortable\"\n! Material\n! Cost ($)\n! Quantity\n! Total ($)\n|-\n| TEG Module\n| align=\"right\"| 49.95\n| 1\n| align=\"right\"| 49.95\n|-\n| Aluminum Base Plate\n| align=\"right\"| 6.00\n| 1\n| align=\"right\"| 6.00\n|-\n| Heat Sink and Fan\n| align=\"right\"|10.00\n| 1\n| align=\"right\"|10.00\n|-\n|\nsprings\n| align=\"right\"|0.99\n| 2\n| align=\"right\"|1.98\n|-\n| Exhaust Gasket\n| align=\"right\"|12.95\n| 1\n| align=\"right\"|12.95\n|-\n| Screws\n| align=\"right\"|0.20\n| 1\n| align=\"right\"|0.80\n|-\n| Sterno\n| align=\"right\"|7.00\n| 1\n| align=\"right\"|7.00\n|-\n| Thermal Paste\n| align=\"right\"|5.00\n| 1\n| align=\"right\"|5.00\n|-\n| DC/DC Converter\n| align=\"right\"|9.95\n| 1\n| align=\"right\"|9.95\n|-\n| Step up voltage converter\n| align=\"right\"|7.00\n| 1\n| align=\"right\"|7.00\n|-\n| colspan=\"3\" align=\"right\"|TOTAL COST\n| align=\"right\"|110.63\n|}\n\n== Conclusions ==\n\nWe installed a circuit board with the positive and negative terminals from the TEG module powering the step up converter and the fan. We installed another terminal that went to the USB port for cell phone charging. This was too much for the systems power so the fan didn’t work while we were charging the phone. This is a problem since optimum performance is based on a hot and cold side. Our initial tests were however a success and we started charging a cell phone at 0.67V. We decided to hook up the 5V fan we appropriated from another device and it seems to work fine.\n\tWith the 5V fan we were able to get over 1.3V of electricity using sterno instead of candles. This kept a cell phone charging for a few minutes after we removed the heat. With more testing and a better heat gauge we are hoping to increase this up to 5V and use a step up converter for 5V to 12V.\n\n== Contact details ==\n\n* [[User:Gem30|Garrett McElroy]]\n* [[User: Humble12|Agustin Gonzalez]]\n\n{{Page data\n| keywords = thermal energy, alternative phone charger\n| sdg = SDG04 Quality education, SDG09 Industry innovation and infrastructure\n| organizations = Cal Poly Humboldt\n| license = CC-BY-SA-3.0\n| language = en\n}}"}