A plane wall with surface temperature of 350°C is attached with straight rectangular fins (k = 235
Question:
(a) Table 173
(b) Fig. 1743.
Transcribed Image Text:
TABLE 17-3 Efficiency and surface areas of common fin configurations Straight rectangular fins tanh ml.. ml. m = V2h/kt Ппn = L+ t/2 L. Ana = 2wL. Straight triangular fins y= (t/2) (1- XIL) 1 4(2ml) 7in = mL 1,(2ml.) m = V2h/kt Ana = 2w V? + (1/2) Straight parabolic fins y- (1/2) (1- XIL m = V2h/kt Ana = w[C, + (LIt)In(1/L + C,)] G = VT+ (#LY 1+ y(2mL) + 1 Circular fins of rectangular profile K,(mr,)I,(mr,) – 1,(mr,)K,(mr,) = C2 1,(mr, )K,(mr,) + K,(mr,)I,(mr,) m = V2h/kt la =+ t/2 Ann = 27(rž – ri) 2r/m Pin fins of rectangular profile m = V4h/kD = L+ DI4 Ana = TDL. tanh ml ml TDen = Pin fins of triangular profile V4hikD пD Ana 2 1,(2ml) mL 1,(2mL) I, (x) = I, (x) – (2/x)l, (x) where x = 2ml. y= (D/2) (1- XIL) Ппn V + (D/2)² Pin fins of parabolic profile y= (D/2) (1 XIL) m = V4h/kD п! Aga 8D IGC, - C =1+ 2(D/L)? C4 = Vī + (DILY In(2DCJL + C,)] 2D %3D 1 + y(2mL/3)? +1 Pin fins of parabolic profile (blunt tip) y = (D/2) (1- xIL)a 3 1(4mL/3) 2ml. 1,(4ml/3) m = V4h/kD Апn ip2 – 1 [16(L/D)² 9612 Alr, 25°C h = 154 W/m2K T,= 350°C t= 5 mm k= 235 W/m-K w- 100 mm = 50 mím-
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 63% (11 reviews)
Using Table 173 and Figure 1743 the efficiency heat transfer rate and effectiveness of a s...View the full answer
Answered By
Nazrin Ziad
I am a post graduate in Zoology with specialization in Entomology.I also have a Bachelor degree in Education.I posess more than 10 years of teaching as well as tutoring experience.I have done a project on histopathological analysis on alcohol treated liver of Albino Mice.
I can deal with every field under Biology from basic to advanced level.I can also guide you for your project works related to biological subjects other than tutoring.You can also seek my help for cracking competitive exams with biology as one of the subjects.
3.30+
2+ Reviews
10+ Question Solved
Related Book For
Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
Question Posted:
Students also viewed these Physics questions
-
A plane wall surface at 200C is to be cooled with aluminum pin fins of parabolic profile with blunt tips. Each fin has a length of 25 mm and a base diameter of 4 mm. The fins are exposed to an...
-
Circular fins of uniform cross section, with diameter of 10 mm and length of 50 mm, are attached to a wall with surface temperature of 350°C. The fins are made of material with thermal...
-
An aluminum plate of 25 mm thick (k = 235 W/m·K) is attached on a copper plate with thickness of 10 mm. The copper plate is heated electrically to dissipate a uniform heat flux of 5300 W/m 2 ....
-
The tasks must you complete as part of building the subledger applications while implementing Oracle Accounting Hub Cloud? Explain.
-
An auditor examined data flow diagrams in a small portion of system development projects and determined that there were nearly 12% of them with errors. The Vice-President for Development wants a...
-
1. In 2011 through 2014, Korey, who is single, borrowed a total of $25,000 for higher education expenses on qualified education loans. In 2015, while still living at home and being claimed by his...
-
Briefly explain the main difference between exchange-traded funds (ETFs) and mutual funds?
-
There is a looming crisis in universities and colleges across North America. In most places enrollments are increasing requiring more instructors. However, there are not enough PhDs to fill the...
-
Payton Corporation will make an investment April 1, 2022. They will receive $9,000 every March 31 for the next six years (2023-2028). If Payton wants to earn 10% on the investment, how much should...
-
On January 1, 20X1, Prange Company acquired 100% of the common stock of Seaman Company for $600,000. On this date Seaman had total owners' equity of $400,000. Any excess of cost over book value is...
-
Two 3-m-long and 0.4-cm-thick cast iron (k = 52 W/m·K) steam pipes of outer diameter 10 cm are connected to each other through two 1-cm-thick flanges of outer diameter 20 cm. The steam flows...
-
A DC motor delivers mechanical power to a rotating stainless steel shaft (k = 15.1 W/m·K) with a length of 25 cm and a diameter of 25 mm. In a surrounding with ambient air temperature of...
-
The following data have been obtained for the decomposition of N 2 O 5 (g) at 67C according to the reaction 2 N 2 O 5 (g) 4 NO 2 (g) + O 2 (g). Determine the order of the reaction, the rate...
-
Franca has AGI of $130,000 this year. After applying the $100 floor, she has $26,000 of federal disaster losses on personal assets, $12,000 of nonfederal casualty losses on personal assets, and...
-
Where and how have teamwork skills been taught or emphasized to you? in school? in social groups? in professional groups? in your family? Describe two or three instances where teamwork skills were...
-
What is a system? Why are many books on teamwork and project management organized around a systems approach? What are the characteristics of effective teams? How do you help promote them?
-
Now given the lask of transporting tax millet is distributed among four counties. County A. 8 days from the tax , 10000 househd Cur S O days from l: tureau, ha 100 househoids, non e days from The...
-
What is marketing management ? Explain the marketing strategy and plan.
-
For the fully differential circuit in Fig. 12.32 a, assume the op amp is ideal with R i = , R o = 0, a dm = , and a cm = 0. Find the closed-loop gains A dm = v od /v sd , A cm = v oc /v sc , A dmcm =...
-
Reichenbach Co., organized in 2018, has set up a single account for all intangible assets. The following summary discloses the debit entries that have been recorded during 2018 and 2019. Instructions...
-
A lossless parallel-plate waveguide is known to propagate the m = 2 TE and TM modes at frequencies as low as 10 GHz. If the plate separation is 1 cm, determine the dielectric constant of the medium...
-
A d = 1 cmparallel-plate guide is made with glass (n = 1.45) between plates. If the operating frequency is 32 GHz, which modes will propagate?
-
For the guide of Problem 13.14, and at the 32 GHz frequency, determine the difference between the group delays of the highest-order mode (TE or TM) and the TEM mode. Assume a propagation distance of...
-
Sophia operates a large singing school with 22 employees. She receives advance fee payments from students in respect of each course (a course consists of 26 lessons). If a student does not attend all...
-
What role does agency play in the Hypodermic Model of Communication? Long after the model has been abandoned by experts in persuasion and mass media, why does this model live on as common sense?
-
Daniel is a resident individual who carries on a retail business but does not use the SBE method of accounting for income in his business. On 30 June of the current tax year he had trade debtors of...
Study smarter with the SolutionInn App