Q2: A nozzle is a device for increasing the velocity of a steadily flowing fluid. At the inlet to a certain nozzle the specific enthalpy of the fluid is 3025 kJ/kg, the inlet area is 0.1 m² and the specific volume is 0.19m’/kg. At the exit from the nozzle the specific enthalpy is 2790 kJ/kg, the area is 0.023 m² and the specific volume is 0.5 m/kg. The nozzle is horizontal and there is a negligible heat loss from it. Calculate: i) The velocity of the fluid at the inlet and exist; ii) The rate of flow of fluid

Q2: A nozzle is a device for increasing the velocity of a steadily flowing fluid. At the inlet to a certain nozzle the specific enthalpy of the fluid is 3025 kJ/kg, the inlet area is 0.1 m² and the specific volume is 0.19m’/kg. At the exit from the nozzle the specific enthalpy is 2790 kJ/kg, the area is 0.023 m² and the specific volume is 0.5 m/kg. The nozzle is horizontal and there is a negligible heat loss from it. Calculate: i) The velocity of the fluid at the inlet and exist; ii) The rate of flow of fluid

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter37: Air Distribution And Balance

Section: Chapter Questions

Problem 2RQ: The two ways that fresh air enters a structure are _______and_____.

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Q2: A nozzle is a device for increasing the velocity of steadily flowing stream of fluid. At the inlet to a certain nozzle the enthalpy of the fluid is 3025 kJ/kg and the velocity is 60 m/s. At the exit from nozzle the enthalpy is 2790 kJ/kg. The nozzle is vertical with a 0.5 m height; ignore the heat loss from it. Find the velocity at the nozzle exit and the rate of flow of fluid if the inlet area is 0.1 m² and the specific volume at inlet is 0.19 m³/kg.
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Q3: A nozzle is a device for increasing the velocity of a steadily flowing stream of fluid. At the inlet to a certain nozzle the enthalpy of the fluid is 3025 kJ/kg and the velocity is 60 m/s. At the exit from the nozzle the enthalpy is 2790 kJ/kg. The nozzle is horizontal and there is negligible heat loss from it. (a) Find the velocity at the nozzle exit. (b) If the inlet area is 0.1 m and the specific volume at the inlet is 0.19 m/kg, find the rate of flow of fluid. (c) If the specific volume at the nozzle exit is 0.5 m/kg, find the exit area of the nozzle.
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