Question: Consider Problem 8.47. A more realistic solution would account for the resistance to heat transfer due to free convection in the paraffin during melting. Assuming

Consider Problem 8.47. A more realistic solution would account for the resistance to heat transfer due to free convection in the paraffin during melting. Assuming the tube surface to have a uniform temperature of 55°C and the paraffin to be an infinite, quiescent liquid, determine the convection coefficient associated with the outer surface. Using this result and recognizing that the tube surface temperature is not known, determine the water outlet temperature, the total heat transfer rate, and the time required to completely liquefy the paraffin, for the prescribed conditions. Thermo physical properties associated with the liquid state of the paraffin are k = 0.15 W/m ∙ K, (3 = 8 x 10^-4 K^-1, P = 770 kg/m³, v = 5 x 10^-6 m²/s, and a = 8.85 x 10^-8 m²/s.

Step by Step Solution

★★★★★

3.31 Rating (160 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

KNOWN Length and diameter of tube submerged in paraffin of prescribed dimensions Properties of paraffin Inlet temperature flow rate and properties of ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

8-E-M-E-H-M-T (869).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

State how the investor corporation would account for the following investments. Explain your choice. a. Purchase of $1,000,000 of bonds that management intends to hold until they mature in three...

Explain how you would account for the following items, justifying your answer by reference to the Conceptual Framework's definitions and recognition criteria: (a) A trinket of sentimental value only....

Explain how you would account for the following items, justifying your answer by reference to the definitions and recognition criteria in the Conceptual Framework. Also state, where appropriate,...

Consider Problem 8.38. A more realistic solution would account for the resistance to heat transfer due to free convection in the paraffin during melting. Assuming the tube surface to have a uniform...

Consider the phase change material (PCM) of Problems 8.47 and 9.57. The PCM is housed in a long, horizontal, and insulated cylindrical enclosure of diameter D e = 200 mm, which in turn includes a...

Please quality check my solutions for this advanced heat transfer problem. Show all work. Thank you. All original documents are located at the bottom. 3.9 COMPACT HEAT EXCHANGERS 3.9.10-1 3.9.10...

solve the question Consider the oven of Problem 1.54. The walls of the oven consist of L = 30-mm-thick layers of insulation characterized by k; = 0.03 W/m.K that are sand- wiched between two thin...

solve the question The diagram shows a conical section fabricated from pyroceram. It is of circular cross section with the diameter D = ax, where a = 0.25. The small end is at x, = 50 mm and the...

ANSWER ALL QUESTIONS. WILL GIVE A GOOD RATING FOR A CORRECT ANSWERS ONLY 2-35E A spring whose spring constant is 200 lbf/in has an initial force of 100 lbf acting on it. Determine the work, in Btu,...

Consider the solar collector of Problem 3.89. After reaching a steady-state operating condition with $q_{\text {rad }}^{\prime \prime}=800 \mathrm{~W} / \mathrm{m}^{2}$, the net radiation flux to...

Anderson Co. issued a $55,135, 60-day, discounted note to National Bank. The discount rate is 6%. At maturity, assuming a 360-day year, the borrower will pay ?

An LC oscillator consists of a 2.00nF capacitor and a 2.00 mH inductor. The maximum voltage is 4.00 V. What are? (a) The frequency of the oscillations, (b) The maximum current, (c) The maximum energy...

In motivational terms, a ( n ) is an anticipated reward.

Complete the given table below: Illustration/ drawing Results/ Reflection Laws of Thermodynamics a). Zeroth Law of Thermodynamics 3D b.) First Law of Thermodynamics 3D c.)Second Law of Thermodynamics

From the following trial and adjustment data, complete a worksheet for KYLEE Co. as of December 31, 2020 (Check Figure: Net Income $1,165) (5pts) a. Depreciation expense, equipment, $968 b. Supplies...

Fill in the blank: Asset Liabilities Owner's Equity 1. 18000 9500 8500 %3D 2. 25000 16500 8500 %3D 3. 15000 7000 %3D + II

What are your own coping strategies for getting started on a piece of writing? Do you have particular strategies for making yourself sit down and start writing? What would you say is the funniest...

Q2: Make a java program that prints out asterisks in a form of right triangle like this: ** *** **** ***** ****** ******* ******** *********

What is a trap, where is it located, and how does it work?

Report Text: From stick figures in the sand and the earliest animals painted and carved in stone, people worldwide have reacted to the world by making images, the fundamental goal of art, especially...

An abc-phase sequence balanced three-phase source feeds a balanced load. The system is connected wye-wye and

In a balanced three-phase wye-wye system, the total power loss in the lines is 272.57 W. Van = 105.28

Cost of debt For which capital component must you make a tax adjustment when calculating the weighted average cost of capital (WACC) for a firm? Equity Debt Preferred stock Bedrick Co. can borrow at...

On Sep 1 9 th , you sold short 5 , 2 0 0 shares of AAPL's stock at $ 1 5 6 per share. Your initial margin requirement is 5 0 percent. Assuming there was no commission and interest fees and no...

Guano Industries is currently selling for $ 8 0 . 0 0 . It just paid its annual dividend of $ 1 . 0 0 , which have consistently grown at a rate of 3 . 1 0 % . What is the expected return of this...