| Author | Pradhan, Bijay Bahadur |
| Call Number | AIT Thesis no.ET-12-20 |
| Subject(s) | Biomass stoves
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| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Energy |
| Publisher | Asian Institute of Technology |
| Abstract | Thermoelectric (TE) Generators are devices that convert heat directly into electricity by the principle of “Seebeck Effect”. The reverse of this effect is called “Peltier Effect” in which heat is removed from one side to the other side by supplying electricity. Thermoelectric modules (TEM) are commercially available as Thermoelectric Coolers (TEC) and Thermoelectric Generators (TEG). In this study a commercially available TE module used for cooling and electricity generation purpose is tested for its use as a TEG. TEM being tested is Model HT1-12710. The power output of TEG is obtained at various temperature differences by measuring current and voltage at known external load resistance. The power was measured for external load resistances of 2 ohm, 5 ohm and 10 ohm. Also the power was measured for fixed temperature difference of approximately 80ºC by varying load resistance. It is found that the maximum power for this model is obtained for a load resistance of 2 ohm. From the theoretical study, it is found that maximum power is obtained for match load condition in which internal load resistance equals external load resistance. The internal load resistance was found to be 1.9 ohm. From the power measured at various conditions, a power equation was derived as a function of temperature difference and external load resistance. The equation obtained was validated for a hot side temperature up to 160 ºC. At higher temperature there was more deviation observed. The power derived also validated for various cold side temperatures. After knowing the power relation, a numerical model was developed to use this TEM with a fin and natural convection water cooling on cold side for its application in biomass cook stove. A power equation was derived as a function of stove wall temperature and ambient water temperature using theoretical study. An experiment was conducted with two TEM and compared with theoretical study. The experimental result showed good agreement with the theoretical study. Similar numerical model can be developed for other applications of TEG to predict the power output. |
| Year | 2012 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Salam, Abdul P.; |
| Examination Committee(s) | Kumar, Sivanappan;Marpaung, Charles O.P.; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2012 |