When steam expands through a nozzle from a pressure of 300 psia to 5 psia, with initial enthalpy 923486 Ibf-ft/lb then final enthalpy 809898 Ibf-ft/lb. Find the velocity at the exit in ft/s if there is no change in PE, velocity of 0 ft/s at the inlet, and no heat is lost through the casing.

When steam expands through a nozzle from a pressure of 300 psia to 5 psia, with initial enthalpy 923486 Ibf-ft/lb then final enthalpy 809898 Ibf-ft/lb. Find the velocity at the exit in ft/s if there is no change in PE, velocity of 0 ft/s at the inlet, and no heat is lost through the casing.

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

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

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Question

8. When steam expands through a nozzle from a pressure of 300 psia
to 5 psia, with initial enthalpy 923486 Ibf-ft/lb then final enthalpy
809898 Ibf-ft/lb. Find the velocity at the exit in ft/s if there is no
change in PE, velocity of 0 ft/s at the inlet, and no heat is lost
through the casing.

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