A piston system contains a hot fluid at 250kPa pressure that is cooled while being stirred by a paddle wheel. Initially, the internal energy of the fluid is 1500 kJ and volume is 2m3. During the cooling process, the fluid loses 400 kJ of heat, and the paddle wheel does 100 kJ of work on the fluid. At the end, volume reduces to 0.5m3. Pressure remains constant. Determine the final internal energy of the fluid. Neglect the energy stored in the paddle wheel. Pambient=250kPaPistonPaddle wheelui=1500KJ(propeller)LoVi=2m3Win=100 kJQout=400KJA piston system contains a hot fluid at 250kPa pressure that is cooled while being stirred by a paddle wheel. Initially, the internal energy of thefluid is 1500 kJ and volume is 2m3. During the cooling process, the fluid loses 400 kJ of heat, and the paddle wheel does 100 kJ of work on thefluid. At the end, volume reduces to 0.5m3. Pressure remains constant. Determine the final internal energy of the fluid. Neglect the energystored in the paddle wheel.O A) 1335B) 1575C) 1875D) 825O E) 2085

Given: P=250 kPa U1=1500 kJ V1= 2 m3 Q=-400 kJ Wp=-100 kJ V2=0.5 m3 Constant pressure To determine:…

Answered: Determine the final internal energy of…

Engineering

Mechanical Engineering

Determine the final internal energy of the fluid.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.14P

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Work and Heat Transfer

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A piston system contains a hot fluid at 250kPa pressure that is cooled while being stirred by a paddle wheel. Initially, the internal energy of the fluid is 1500 kJ and volume is 2m³. During the cooling process, the fluid loses 400 kJ of heat, and the paddle wheel does 100 kJ of work on the fluid. At the end, volume reduces to 0.5m³. Pressure remains constant. Determine the final internal energy of the fluid. Neglect the energy stored in the paddle wheel.

Pambient=250kPa
Piston
Paddle wheelui=1500KJ
(propeller)
LoVi=2m3
Win=100 kJ
Qout=400KJ
A piston system contains a hot fluid at 250kPa pressure that is cooled while being stirred by a paddle wheel. Initially, the internal energy of the
fluid is 1500 kJ and volume is 2m3. During the cooling process, the fluid loses 400 kJ of heat, and the paddle wheel does 100 kJ of work on the
fluid. At the end, volume reduces to 0.5m3. Pressure remains constant. Determine the final internal energy of the fluid. Neglect the energy
stored in the paddle wheel.
O A) 1335
B) 1575
C) 1875
D) 825
O E) 2085

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