Air flowing at a constant mass flow rate of 300 lbm/hr is heated from 75F to...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Air flowing at a constant mass flow rate of 300 lbm/hr is heated from 75°F to 200°F. The heating is accomplished in a vertical heat exchanger of constant cross- sectional area. The exchanger is 12 ft long. The pressure of the air stream entering at the bottom of the heat exchanger is 20 psia and 3 psia pressure drop occurs through the apparatus because of fluid friction. The average velocity of the inlet air is 15 ft/s. Assume the air to behave as an ideal gas and to have a value of Cp as 0.24 Btu/lbm.°F. Determine (a) the diameter of the pipe and (b) the reaction force exerted on the pipe. Air flowing at a constant mass flow rate of 300 lbm/hr is heated from 75°F to 200°F. The heating is accomplished in a vertical heat exchanger of constant cross- sectional area. The exchanger is 12 ft long. The pressure of the air stream entering at the bottom of the heat exchanger is 20 psia and 3 psia pressure drop occurs through the apparatus because of fluid friction. The average velocity of the inlet air is 15 ft/s. Assume the air to behave as an ideal gas and to have a value of Cp as 0.24 Btu/lbm.°F. Determine (a) the diameter of the pipe and (b) the reaction force exerted on the pipe.
Expert Answer:
Answer rating: 100% (QA)
HHHHHH wwwwwwww m 1 Given that Air flowing at constant mais vrate 300 lbmbor Q headed from 7... View the full answer
Related Book For
Fundamentals of Thermal-Fluid Sciences
ISBN: 978-0078027680
5th edition
Authors: Yunus A. Cengel, Robert H. Turner, John M. Cimbala
Posted Date:
Students also viewed these mathematics questions
-
The vortex tube (also known as a Ranque or Hirsch tube) is a device that produces a refrigeration effect by expanding pressurized gas such as air in a tube (instead of a turbine as in the reversed...
-
A gas refrigeration system using air as the working fluid has a pressure ratio of 5. Air enters the compressor at 0oC. The high-pressure air is cooled to 35oC by rejecting heat to the surroundings....
-
A gas refrigeration system using air as the working fluid has a pressure ratio of 5. Air enters the compressor at 0oC. The high-pressure air is cooled to 35oC by rejecting heat to the surroundings....
-
In a 2 to 3 body page paper (excluding reference page) provide your determination and analysis of Case below (from End of Chapter 5, Waldman & OReilly, 2020). You are a manager of a regional...
-
It has been proposed that a spaceship might be propelled in the solar system by radiation pressure, using a large sail made of foil. How large must the surface area of the sail be if the radiation...
-
An incompressible fluid flows steadily past a circular cylinder as shown in Fig. P3.8. The fluid velocity along the dividing streamline \((-\infty \leq x \leq-a)\) is found to be...
-
Management of Last Call Inc. is considering the following capital projects Assume that all projects have no salvage value and that the company uses a discount rate of 10 percent. Management has...
-
International transfer pricing, taxes, goal congruence. Argone division of Gemini Corporation is located in the United States. Its effective income tax rate is 30%. Another division of Gemini,...
-
LKD Company has 12 percent coupon bonds with a YTM of 8.3 percent. The current yield on these bonds is 9.7 percent. How many years do these bonds have left until they mature? Note: Do not round...
-
FlyHigh Tech, an early-stage startup, reports to its investors using a balanced scorecard that is prepared at the end of each quarter. During the first and second quarters of the current year, the...
-
An investigator studying condom use in college students collects data at the university's health fair. She asks every third student who comes to her booth to complete an exit survey and mail it back...
-
Reba the robot and Amby the automatic mopper each travel along the surface of the Earth from Ksar Kaddour, Algeria (at 30 N, 0 E) to Kikorongo, Uganda (at 0 N, 30 E). Reba travels at a constant speed...
-
Consider the function f(x) = In(4 - x). Determine: a. The domain of f(x). b. The x-intercept and y-intercept of the curve. C. The symmetry of the curve.
-
Explain Independent contractors, and the duties performed by them.
-
With a view to avoiding missing out the opportunities to enter into beneficial business transactions, list the Rules of Offer and Acceptance that should always be observed.
-
The Snoop'n'trude Security Service has searched its employees' lockers several times without a warrant. The employees' lawyer brings a class action lawsuit based on violation of the Fourth Amendment....
-
The following changes took place last year in Pavolik Company's balance sheet accounts: Asset and Contra-Asset Accounts Cash Accounts receivable Inventory Prepaid expenses Long-term investments...
-
9.Consider the reaction 3NO2(g)+H2O=2HNO3(aq)+NO(g) where Delta H=-137 kJ.How many kilojoules are released when 92.3g of NO2 reacts?
-
Steam at 235C is flowing inside a steel pipe (k = 61 W/mK) whose inner and outer diameters are 10 cm and 12 cm, respectively, in an environment at 20C. The heat transfer coefficients inside and...
-
Conduct the following experiment at home to determine the combined convection and radiation heat transfer coefficient at the surface of an apple exposed to the room air. You will need two...
-
Water at 15°C is drained from a large reservoir using two horizontal plastic pipes connected in series. The first pipe is 20 m long and has a 10-cm diameter, while the second pipe is 35 m long...
-
How is the average rate of return computed for capital investment analysis, assuming that the effect of straight-line depreciation on the amount of the investment is considered?
-
Which method of evaluating capital investment proposals reduces their expected future net cash flows to present values and compares the total present values to the amount of the investment?
-
Which two methods of capital investment analysis can be described as present value methods?
Study smarter with the SolutionInn App