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
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.
Knowledge Based Outcomes: 1. Understanding of the key issues in managing marketing operations within an organisation 2. Understanding of the tools and techniques employed...Jul 31 2020
You work on a proprietary trading desk of a large investment bank, and you have been asked for a quote on the sale of a call option with a strike price of $51 and one yea...Aug 13 2020
Suppose that you open your own business and eam an accounting proft of $40.00 pr year When you started your business you left a job that paid you a salary annually. profi...Apr 19 2020
Carl Jamison, an employee for the Scharman School, belongs to a tax-deferred retirement plan to which he contributes 3 percent of his pay which is matched by the school. ...Feb 11 2020
Deutsche Telekom (DT) owns and operates the fixed telephone network in Germany. DT’s local networks consist of a number of local loops, which are the physical circuits co...Feb 07 2020
Contract Law - Insurance Mario has purchased a new kart, and would like to get some insurance on it. The kart is worth $1,000, and there is a 10% chance he will be in an ...Jun 06 2020
Beyer Corporation is considering buying a machine for $34,000 Its estimated useful life is five years, with no salvage value Beyer anticipates annual net income after tax...Mar 23 2020
The purpose of a database is to ________.A) test and troubleshoot newly installed softwareB) design the source code for computer programsC) describe and build computer ar...Dec 23 2019
Kaelea, Inc., has no debt outstanding and a total market value of $69,000. Earnings before interest and taxes, EBIT, are projected to be $9,000 if economic conditions are...Apr 02 2020
You have the following information on personal consumption expenditures (C) and disposable income (Yd):YearCYd13004002500700a. Compute the marginal propensity to consume....Dec 07 2019