Question: A superheater brings 2.5 kg/s saturated water vapor at 2 MPa to 450oC. The energy is provided by hot air at 1200 K flowing outside

A superheater brings 2.5 kg/s saturated water vapor at 2 MPa to 450oC. The energy is provided by hot air at 1200 K flowing outside the steam tube in the opposite direction as the water, which is a counter flowing heat exchanger. Find the smallest possible mass flow rate of the air so the air exit temperature is 20oC larger than the incoming water temperature (so it can heat it).

Step by Step Solution

★★★★★

3.33 Rating (156 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

CV Superheater Steady state with no external Q or an... 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)

E-ME-T (682).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

A compressor is used to bring saturated water vapor at 1 MPa up to 17.5 MPa, where the actual exit temperature is 650C. Find the isentropic compressor efficiency and the entropy generation.

A mass of 5 kg of saturated water vapor at 300 kPa is heated at constant pressure until the temperature reaches 200C. Calculate the work done by the steam during this process.

A mass of 5 kg of saturated water vapor at 300 kPa is heated at constant pressure until the temperature reaches 200oC. Calculate the work done by the steam during this process.

The sum of the electric power (WE1 + WE2) generated by generator 1 and 2 will feed the demand from the 150,000 homes. Notice how their efficiencies are different: generator 1 has an efficiency of...

ATTEMPT ALL QUESTIONS. BE SURE TO ANSWER A body with mass m = 1 2 kg is attached to the end of a spring that is stretched 2 m by a force of 100 N. Furthermore, there is also attached a dashpot4 that...

5-180 Determine the power input for a compressor that compresses helium from 150 kPa and 20C to 400 kPa and 200C. Helium enters this compressor through a 0.1-m2 pipe at a velocity of 15 m/s. 5-181...

please i need calculation step by step and Requirements: -find out the lagging efficiency for all of the 4 pipes -calculate the K thermal conductivity for the 2nd and the 3rd pipe's lagging material...

Question 1 [28 points] A packaging facility in Jeddah is used 24 hours a day, 365 days a year. The dimensions of the facility are 70m5010m (length x width height). The facility needs to be cooled the...

An office building consists of 50 offices. Energy consumption in the building is mainly due to lighting and air-conditioning, as follows: To save on electricity bills, it is suggested to replace...

#6 and #7 1. Moist air at standard conditions is at a dry bulb temperature of 50F and a relative humidity of 70%. It is sensibly heated (constant moisture) to 72F. Use the psychrometric chart to...

In an automatic telephone exchange the probability that any one call is wrongly connected is 0.002. a) For a day when 1000 independent calls are connected, determine using the exact distribution the...

Claim: = 1.25; = 0.05 Sample statistics: s = 1.03, n = 6 Test the claim about the population variance 2 or standard deviation at the level of significance . Assume the population is normally...

Trinity Health is a private NFP health care organization. Information on its performance for the current year is as follows ( in thousands ) : Required Prepare Trinity Health's statement of...

Prepare a graph of the grotvth in the number of S corporation returns filed. Obtain data for these years: 1980, 1985, 1990, 1995, 2000, 2005, and 2010. In a note to your instructor, explain the...

During 2019 and 2020, Faulkner Manufacturing used the sum-of-the-years-digits (SYD) method of depreciation for its depreciable assets, for both financial reporting and tax purposes. At the beginning...

Suppose we have 20 singleton sets, numbered 0 through 19, and we call the operation union(find(i),find(i + 5)), for i = 0, 1, 2,..., 14. Draw a picture of a tree-based representation of the sets that...

Using a spreadsheet analysis, plot the annual cost of fuel for the vehicle in Example 6.4 as the cost of gasoline ranges from $1.00 to $10.00 per gallon. Example 6.4 The cost of fuel is rising and...

Engineers who design shopping vehicles (e.g., carts) for retail stores take into account issues such as maneuverability, shopping behavior, child safety, and maintenance cost. Interestingly, while...

1. The height, y metres, of a model rocket launched directly upwards from the ground can be modelled by y = 96t - 4r ^ 2 where is the time in seconds after it leaves the ground. (i) Find the height...

Objective Explore the properties of different algorithms Identify the big O classification Compare algorithms to identify efficiency Instructions Answer all questions below .Record them in the...

General Instruction: Do the following activity independently. You may use MS Office Excel or any other available spreadsheet application to do and accomplish this practical exam. Thank you and God...

a & b please Apple Corporation had no debt on its balance sheet in 2008 , but paid $2 billion in taxes. Suppose Apple were to issue sufficient debt to reduce its taxes by $1.2 billion per year...