The methyl alcohol flowing in the inner pipe of a double pipe exchanger is cooled with...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
The methyl alcohol flowing in the inner pipe of a double pipe exchanger is cooled with water flowing in the jacket. The inner pipe is made from 1-inch (25mm) schedule 40 steel pipe. The thermal conductivity of steel is 26 Btu/ft-h-°F (45 W/m-°C). The methyl alcohol enters the inner pipe at 104°F and exits at 64°F. The cooling water in the jacket of the double-pipe exchanger has a bulk temperature Tof = 41°F. The diameters and wall thickness of 1-in. Schedule 40 pipe, from Appendix 5, are 1.049 D₁ 0.0874 ft D₁ = 1.315 12 0.1096 ft 0.133 -0.0111 ft 12 12 TABLE 11.1 Data for Example 11.1 Btu/fr-F W/m²³-C 180 1020 300 1700 Alcohol coefficient A Water coefficient k Inside fouling factor h Outside fouling factor 1000 5680 500 2840 From all the given data, determine the following: 1. q, constant rate of heat transfer 2. T₁, temperature of the inner tube surface in contact with methyl alcohol 3. AT, temperature difference due to heat conduction in the inner tube. Coefficient NOTE: Uo= 71.3 Btu/ft²-h-F or 405 W/m²-C but Ao I can't find USE THIS = Uo(Tb -Tof) NOTE: Uo is based on outer surface area of the inner pipe Ao Tb Tof (Tb - Ft) + (F-7₂) + (F₂-Tof) 9 (1²4) + (192M) + (1074) = = KALM hof Ao AoUo 1 Ao Aox Au = + + Uo hDAL KALM hofa 1 Do hb Di KDLM Dox + + hof ΣR= where x = 12-₁-pipe thickness Do-D DLM = In(Do/D) The methyl alcohol flowing in the inner pipe of a double pipe exchanger is cooled with water flowing in the jacket. The inner pipe is made from 1-inch (25mm) schedule 40 steel pipe. The thermal conductivity of steel is 26 Btu/ft-h-°F (45 W/m-°C). The methyl alcohol enters the inner pipe at 104°F and exits at 64°F. The cooling water in the jacket of the double-pipe exchanger has a bulk temperature Tof = 41°F. The diameters and wall thickness of 1-in. Schedule 40 pipe, from Appendix 5, are 1.049 D₁ 0.0874 ft D₁ = 1.315 12 0.1096 ft 0.133 -0.0111 ft 12 12 TABLE 11.1 Data for Example 11.1 Btu/fr-F W/m²³-C 180 1020 300 1700 Alcohol coefficient A Water coefficient k Inside fouling factor h Outside fouling factor 1000 5680 500 2840 From all the given data, determine the following: 1. q, constant rate of heat transfer 2. T₁, temperature of the inner tube surface in contact with methyl alcohol 3. AT, temperature difference due to heat conduction in the inner tube. Coefficient NOTE: Uo= 71.3 Btu/ft²-h-F or 405 W/m²-C but Ao I can't find USE THIS = Uo(Tb -Tof) NOTE: Uo is based on outer surface area of the inner pipe Ao Tb Tof (Tb - Ft) + (F-7₂) + (F₂-Tof) 9 (1²4) + (192M) + (1074) = = KALM hof Ao AoUo 1 Ao Aox Au = + + Uo hDAL KALM hofa 1 Do hb Di KDLM Dox + + hof ΣR= where x = 12-₁-pipe thickness Do-D DLM = In(Do/D)
Expert Answer:
Answer rating: 100% (QA)
Solution Solution mm Schedule 40 Inner Diameter Di 26645 Outen Diometer D 33401 mm 45 Wm... View the full answer
Related Book For
Principles of heat transfer
ISBN: 978-0495667704
7th Edition
Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn
Posted Date:
Students also viewed these mathematics questions
-
The methyl alcohol flowing in the inner pipe of a double pipe exchanger is cooled with water flowing in the jacket. The inner pipe is made from 1-inch (25mm) schedule 40 steel pipe. The thermal...
-
The following additional information is available for the Dr. Ivan and Irene Incisor family from Chapters 1-5. Ivan's grandfather died and left a portfolio of municipal bonds. In 2012, they pay Ivan...
-
Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...
-
Dodona I, LLC, invested $ 4 million in two securities offerings from Goldman, Sachs & Co. The investments were in collat-eralized debt obligations ( CDOs). Their value depended on residential...
-
With so much business being conducted over the Internet, including email, why is it important to understand cross-cultural differences in values?
-
Using the data in Exercise 6-11 prepare closing entries for the preceding accounts. Do not close the Income Summary account.
-
For investments in available-for-sale securities, how are unrealized (holding) gains and losses reported? AppendixLO1
-
This information relates to Rana Co. 1. On April 5, purchased merchandise from Craig Company for $25,000, terms 2/10, net/30, FOB shipping point. 2. On April 6, paid freight costs of $900 on...
-
During its first year of operations, Splish Brothers Inc. had the following transactions pertaining to its common stock. Jan.10Issued 71,500 shares for cash at $6 per share. July 1Issued 41,500...
-
On January 1, 2021, Gundy Enterprises purchases an office for $360,000, paying $60,000 down and borrowing the remaining $300,000, signing a 7%, 10-year mortgage. Installment payments of $3,483.25 are...
-
FRBSF Discount Rate "Discount Rate" on Advances to Member Banks under Sections 13 and 13a of the Federal Reserve Act in Effect at the Federal Reserve Bank of San Francisco The following is a list of...
-
Design an arithmetic circuit with two selection variables S 1 and S 0 and two n- bit data inputs A and B. The circuit generates the following eight arithmetic operations in conjunction with carry C...
-
Larrys Sporting Goods is a locally owned store that specializes in printing team jerseys. The majority of its business comes from orders for various local teams and organizations. While Larrys prints...
-
Pecos Pecan Pads makes pressed pecan wood covers to prevent weed growth. During July 2009, the company produced and sold 44,000 rolls and recorded the following cost data: Requirements 1. Compute the...
-
The Human Resources departments costs are allocated to the other departments based on the number of direct labor hours. The departments expected fixed costs are 400,000 and its variable costs are...
-
A lawyer allocates overhead costs based on her hours working with different clients. The lawyer expects to have \($200,000\) in overhead during the year and expects to work on clients cases 2,000...
-
Question 4 2 pts Raptas Company recognized the payment of employee salaries as a debit to Salary Expense and a credit to Retained Earnings. As a result of this error Both Cash and Retained tamnings...
-
Write a while loop that uses an explicit iterator to accomplish the same thing as Exercise 7.3. Exercise 7.3. Write a for-each loop that calls the addInterest method on each BankAccount object in a...
-
The heat transfer coefficient on the inside of a copper tube (1.9 cm ID and 2.3 cm OD) is 500 W/(m2 K) and 120 W/(m2 K) on the outside, but a deposit with a fouling factor of 0.009 (m2 K)/W (based on...
-
A small space heater is constructed of 1/2-in., 18-gauge brass tubes, 2 ft long. The tubes are arranged in equilateral, staggered triangles on 1 1/2-in. centers, four rows of 15 tubes each. A fan...
-
A vertical rectangular water duct 1 m high and 0.1 m deep is placed in an environment of saturated steam at atmospheric pressure. If the outer surface of the duct is about 50?C, estimate the rate of...
-
building another probability distribution, this time a distribution of mean differences
-
Using the PewSocialMedia dataset, get a 95% confidence on the recoded variable Number of Texts Sent Per Day (XYtextnum1) for two groups: whites and non-whites. Present your confidence intervals, and...
-
We suspect that kids who sext (send nude photos by text) text more than kids who dont sext. Using the PewKids dataset, get 95% confidence intervals that will help you address this suspicion. Based on...
![Mobile App Logo](https://dsd5zvtm8ll6.cloudfront.net/includes/images/mobile/finalLogo.png)
Study smarter with the SolutionInn App