Access over 20 million homework documents through the notebank

Get on-demand Q&A homework help from verified tutors

Read 1000s of rich book guides covering popular titles

Anonymous

I’ll upload a picture of paper that has 4 questions and need it to be solvers as soon as possible. The questions that you will see is 4.9 , 4.12, 4.15 and 4.26

Attached.

Air enters a one-inlet, one-exit control volume at 6 bar, 500 K, and 30m/s through a flow of 28 cm2. At

the exit, the pressure is 3 bar, the temperature is 456.5 K, and the velocity is 300 m/s. The air behaves as

an ideal gas. For steady-state operation, determine

a) the mass flow rate in Kg/s

Given that there is one inlet and one exit, and a steady flow of gas;

Mass rate balance mµ1=mµ2=mµ

Mass flow rate mµ =Density ρ, * Volume flow rate Vµ

Volume flow rate Vµ = area A * Velocity average Vavg

Therefore;

Mass flow rate mµ =area A, * Velocity average Vavg * Density ρ

=0.0028m2 * 30 m/s * 4.1876kg/m3

=0.3518 kg/s

b) the exit flow area in cm

Area A = mass flow rate mµ

Velocity average * Density

=0.3518kg/s

300m/s*2.2912kg/m3

=0.0005 m2

=5 cm2

Refrigerant 134a enters the evaporator of a refrigeration system operating at steady state -40C and

quality of 20% at a velocity of 7 m/s. At the exit, the refrigerant is a saturated vapor at a temperature of

-40C. The evaporator flow channel has constant diameter. If the mass flow rate of the entering

refrigerant is 0.1 Kg/s, determine

a) the diameter of the evaporator flow channel, in cm

b) the velocity at the exit in m/s.

Air pressure enters a compressor operating at steady state with a pressure of 14.7 lbf/in2 and a

volumetric flow rate of 8ft3/s. The air velocity in the exit pipe is 225ft3/s and the exit pressure is

150lbf/in2. If each unit mass of air passing from inlet to exit undergoes a process described by pv1.3 =

constant, determine the diameter of the exit pipe in inches.

Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 K, 1 bar, with a

volumetric flow rate of 0.25 m3/s, and exits at 325 K, 0.95 bar. The flow area 0...

Review

Anonymous

Top quality work from this tutor! I’ll be back!

Anonymous

It’s my second time using SP and the work has been great back to back :) The one and only resource on the Interwebs for the work that needs to be done!

Anonymous

Thanks, good work

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors