3. A fluid enters with a steady flow of 3.8 kg/s and an initial pressure of 690 kPa, density of 3.2 kg/cu.m, velocity of 60 m/s and internal energy of 2000 kJ/kg. It leaves at 172 kPa, density of 0.64 kg/cu.m, velocity of 160 m/s and internal energy of 1950 kJ/kg. The heat loss is 18.6 kJ/kg. Determine a. the change in kinetic energy in Watts 41.800 O 41,800 201.875 b. the change in internal energy in kW -190.0 -180.0 -200.0 O Other: c. the change in flow work in kW O 0.201875 221.875 201.875 d. the work of the open system (Wsf) in kW -124.355 -122.00 -72.275

3. A fluid enters with a steady flow of 3.8 kg/s and an initial pressure of 690 kPa, density of 3.2 kg/cu.m, velocity of 60 m/s and internal energy of 2000 kJ/kg. It leaves at 172 kPa, density of 0.64 kg/cu.m, velocity of 160 m/s and internal energy of 1950 kJ/kg. The heat loss is 18.6 kJ/kg. Determine a. the change in kinetic energy in Watts 41.800 O 41,800 201.875 b. the change in internal energy in kW -190.0 -180.0 -200.0 O Other: c. the change in flow work in kW O 0.201875 221.875 201.875 d. the work of the open system (Wsf) in kW -124.355 -122.00 -72.275

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 6.12P

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