Calculating the Stresses in the PN Junction - Engineering Assignment Help

Assignment Task

Objective 1: calculating the stresses in the PN junction if both ends of them are fixed, and compare your solutions with Ansys solutions

Calculate the temperature and stresses in the beam for the following geometry and environmental parameters: L is between 11.9 mm and 26.0 mm, j0 is between and . Fixe the temperatures at the hot side (x = 0) and the cold side as Th = 325 K and Tc = 300 K, respectively.
Plot the distribution of temperature and thermal stress along x for different values of L, j0. Plot the distribution of stress vs j0 for different values of L and Tc. Study the effects of beam thickness L, the applied electric flux j0 and the environment temperature Tc. Again fixe the temperatures at the hot side (x = 0) and the cold side as Th = 325 K and Tc = 300 K, respectively.
Please give the results (via table or plot the results) for the stresses for different values of temperature at the hot side (e.g., for Th = 300 K, 310 K, 320 K, 520 K). Fixed L as 11.9 mm and j0 as .
 

Objective 2: Study the output power of the PN junction and compare the results with Ansys solution.
Hint:
The electric current I through the TEG can be obtained as, where Th and Tc are the temperatures at the end of thermoelectric legs, RI is the total electric resistance of p- and n-type legs. The power out P can be calculated by P=I2RL. Study the effects of beam length L and the temperature at the hot side Th. Plot P as a function L and Th.
Temperature at the hot side (x = 0) Th is between 300 K and 520 K. Temperature at the cold side (x = L) of TEG is Tc = 300 K (this is approximately the human body temperature).

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