Chapter 6, Problem 6.41P

Consider the chip on the circuit board of Problem 6.39. To ensure reliable operation over extended periods. the chip temperature should not exceed $85°\text{C}\text{.}$ Assuming the availability of forced air at $T_{\infty }=25°\text{C}$ and applicability of the prescribed heat transfer correlation, compute and plot the maximum allowable chip power dissipation $P_c$ as a function of air velocity for $1\le V\le 25\text{m/s}\text{.}$ If the chip surface has an emissivity of 0.80 and the board is mounted in a large enclosure whose walls are at $25°\text{C,}$ what is the effect of radiation on the $P_c-V$ plot?