In order to increase the rate of heat dissipation from one side of an electronic device
1 m wide and 1 m tall the addition of aluminum fins has been suggested. The fins
are to be rectangular in cross section, 2.5 cm long and 0.25 cm thick. There are to be
Problem 2.1
Problem 2.2
Problem 2.3
Problem 2.4
The values of the individual resistances can be calculated as:
Problem 2.5
Problem 2.6
From the literature (values may vary slightly from your text), the Stefan-Boltzmann constant = 5.67*10^-8 W/
6.1) The rate of heat loss from the pipe can be expressed as: q = kSToverall Where S is the relevant shape factor, defined in Table 4.1 by case 2:
S=
2 (1) = 1.98 -1 120 cosh 10
And the rate of heat loss per meter length is: q = (0.4)(1.98)(