Heat Transfer

Problem-solving. HEAT TRANSFER 1. What is the external heating surface area in square feet of a tube with the following dimensions: tube inside diameter is 5 inch, wall thickness is ½ inch and length is 18 ft. a. 27.28 b. 28.27 c.28.57 d. 27.75  2. The surface of a furnace wall is at a temperature of 1400oC. The outside wall temperature is 50oC. The furnace wall is made of 30cm of refractory material having a thermal conductivity of 1.3 W/m-K. The outside wall is steel, 2cm thick with thermal conductivity of 45 W/m-K. Calculate the thickness in meters of brick to be installed in between the refractory material and steel if its thermal conductivity is 0.35 W/m-K and the heat loss is not to exceed 900 W/m2 a. 0.222 b. 0.333 c. 0.444 d. 0.555 3. In a certain instance, a blossom gets a touch of frost on the strawberries, the harvest was significantly reduced. Consider a very clear night with a slight breeze of about 10 km/hr making the convection coefficient equal to 21 W/m2 -K. The outer space temperature may be assumed to be 110oK and the emissivity of the strawberry is 0.70. At what surrounding temperature will the strawberries freeze? a. 15.02oC b. 13.01oC c. 12.01oC d. 10.22oC  4. Water at an average temperature of 23oC flows through a 10-cm diameter pipe that is 2.5 m long. The pipe wall is heated by steam and is held at 100oC. The convective heat transfer coefficient is 2.25 x 104 W/m2 -K. Find the heat flow in W. a. 13.6 x 105 b. 15.2 x 105 b. 17.5 x 105 b. 21.4 x 105 5. The thermal conductivity of the wall is 5 W/mK. If the inside temperature is 153 deg higher than the outside, determine the thickness of the wall if the heat transmitted is 4.25KW per area. a. 15 b. 16 c. 17 d. 18

Don't use plagiarized sources. Get Your Custom Essay on
Heat Transfer
Just from $13/Page
Order Essay
Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

We value our customers and so we ensure that what we do is 100% original..
With us you are guaranteed of quality work done by our qualified experts.Your information and everything that you do with us is kept completely confidential.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

The Product ordered is guaranteed to be original. Orders are checked by the most advanced anti-plagiarism software in the market to assure that the Product is 100% original. The Company has a zero tolerance policy for plagiarism.

Read more

Free-revision policy

The Free Revision policy is a courtesy service that the Company provides to help ensure Customer’s total satisfaction with the completed Order. To receive free revision the Company requires that the Customer provide the request within fourteen (14) days from the first completion date and within a period of thirty (30) days for dissertations.

Read more

Privacy policy

The Company is committed to protect the privacy of the Customer and it will never resell or share any of Customer’s personal information, including credit card data, with any third party. All the online transactions are processed through the secure and reliable online payment systems.

Read more

Fair-cooperation guarantee

By placing an order with us, you agree to the service we provide. We will endear to do all that it takes to deliver a comprehensive paper as per your requirements. We also count on your cooperation to ensure that we deliver on this mandate.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency