Home / Questions / Triangular and parabolic straight fins are subjected to the same thermal conditions as the...
Triangular and parabolic straight fins are subjected to the same thermal conditions as the rectangular straight fin of Problem 3.134.
(a) Determine the length of a triangular fin of unit width and base thickness t = 3 mm that will provide the same fin heat rate as the straight rectangular fin. Determine the ratio of the mass of the triangular straight fin to that of the rectangular straight fin.
(b) Repeat part (a) for a parabolic straight fin
Problem 3.134
A straight fin fabricated from 2024 aluminum alloy (k = 185 W/m∙ K) has a base thickness of t = 3 mm and a length of L = 15 mm. Its base temperature is Tb = 100°C, and it is exposed to a fluid for which T∞ = 20°C and h = 50 W/m2 ∙ K. For the foregoing conditions and a fin of unit width, compare the fin heat rate, efficiency, and volume for rectangular, triangular, and parabolic profiles.
Jun 28 2020 View more View Less
25 points) Let f(x) = x2 Find (a) the intervals on which f is increasing. (b) the intervals on which fis decreasing, (c) the open intervals on which f is concave up. () t...
Apr 26 2021For most of Chinese history, its people have beenUrban tradersBankersSoldiersRural farmersBureaucrats in the massive government
Aug 22 2021The sum of the series E -o (2n +1) (-1)737 is Select one: a. TE V3 b. TV3 6. C. TI 야명 6/3 d. Non of them e. TI 313)
Apr 26 2021Do you believe the field of organizational behavior has the potential to become prescriptive as opposed to descriptive? >
Apr 28 2020J.R has a three stock portfolio. Details of the portfolio are provided in the table. I the T-bill rate is 5% and the market isk pre nimis 55% A oring to the CAPM what is ...
Dec 04 2019Let Ln_1 (-1)+1 +1 be given. Which of the following statement is correct? 1) Since the series is absolute convergence, the series is convergent. II) The series is diverge...
Apr 21 2021Jeff buys a house for $220,000. He makes a 10% down payment andnances the remaining balance with a 15 year mortgage. The annualinterest rate is 2.875% andinterest is comp...
Dec 04 2019Which of the following molecules would you expect to have a dipole moment of zero?1. CH2Cl2, CHCl3, CCl42. CO2, N2O3. PH3, NH3
Jul 28 2021Please reflect on your comprehension of financial management and knowledge gained from the media concerning financial real world activities and events occurring in the US...
Aug 20 2020I already know the answer to "b" is 30.68%. Need help with 'a' and 'c'Good Time Company is a regional chain department store. It will remain in business for one more year...
Aug 25 2020