Question: Air enters a duct subsonically at section 1 at 1.2 kg/s. When 650 kW of heat is added, the flow chokes at the exit at

Air enters a duct subsonically at section 1 at 1.2 kg/s. When 650 kW of heat is added, the flow chokes at the exit at p2 = 95 kPa and T2 = 700 K. Assuming frictionless heat addition, estimate
(a) The velocity; and
(b) The stagnation pressure at section 1.

Step by Step Solution

★★★★★

3.39 Rating (155 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Since the exit is choked p2 p and ... 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-FM (1131).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

When 5.30 X 105 J of heat is added to a gas enclosed in a cylinder fitted with a light frictionless piston maintained at atmospheric pressure, the volume is observed to increase from 1.9m3 to 4.1m3....

When 5.80 105 J of heat is added to a gas enclosed in a cylinder fitted with a light frictionless piston maintained at atmospheric pressure, the volume is observed to increase from 1.9 m3 to 4.1 m3....

Suppose that 31.4 J of heat is added to an ideal gas. The gas expands at a constant pressure of 1.40 104 Pa while changing its volume from 3.00 10-4 to 8.00 10-4 m3. The gas is not monatomic, so...

1 . 2 kg / s of air enters section 1 of a duct in a subsonic regime. When 6 5 0 kW of heat is added, the flow is blocked at the outlet at P 2 = 9 5 kPa T 2 = 7 0 0 \ deg k . Assuming that the...

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...

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...

5-43C Consider an adiabatic turbine operating steadily. Does the work output of the turbine have to be equal to the decrease in the energy of the steam flowing through it? 5-44C Consider an air...

Read the novel The Strange Case of Dr. Jekyll and Mr. Hyde and Answer the following question 1. Explain a character's problem and then offer your character advice on how to solve his/her problem. 2....

Question 1 A steam power cycle with regeneration as shown below on the T-s diagram employs a single open feedwater heater for efficiency improvement. The fluids mix with each other in an open...

Draw the free-body diagram of the uniform bar, which has mass M and center of mass at G. The supports A, B, and C are smooth. Given: M = 100 kg a = 1.75 m b = 1.25 m c = 0.5 m d = 0.2 m g = 9.81m/s2...

Using transaction data to prepare a statement of cash flowsDirect method Greenstein Company engaged in the following transactions during 2012. The beginning cash balance was $86,000 and ending cash...

In Problem 14, the Bombers management has determined the following probabilities of the occurrence of each future season outcome for each player: Compute the expected value for each player and...

air value accounting is based on: Select one: a . Historical costs b . Depreciation schedules c . Current market prices d . Future estimates

. 4) For a reaction A B (rate expression: -rA=kCA) taking place in isothermal tubular reactor, starting with the mass balance equation and assuming plug flow, derive an expression for calculating the...

Use the AOs as in the energy scale as provided 1) Build the MO diagram for this hypothetical molecule. SHOW YOUR WORK 2) Explain what changed when going from SF6, with no d orbitals involved, to AF6,...

4) For a reaction A B (rate expression: -rA=kCA) taking place in isothermal tubular reactor, starting with the mass balance equation and assuming plug flow, derive an expression for calculating the...

For the passport office described above, the total work content of all the activities that make up the total task of checking, processing and issuing a passport is, on average, 30 minutes. How many...

Exercise 12-14 The following information is taken from the 2019 general ledger of Monty Corp.. Rent Rent expense Prepaid rent, January 1 $ 40,000 Prepaid rent, December 31 5,900 8,300 Salaries Study...

Booker, Inc., has identified an investment project with the following cash flows. If the discount rate is 8 percent, what is the future value of these cash flows in Year 4? What is the future value...

Acua Leather Goods. DeMagistris Fashion Company, based in New York City, imports leather coats from Acua Leather Goods, a reliable and longtime supplier, based in Buenos Aires, Argentina. Payment is...