1. During a steady flow process, the pressure of the working substance drops from 200 to 20 psia, the speed increases from 200 to 1000 fps, the internal energy of the open system decreases 25 Btu/lb, and the specific volume increases from 1 to 8 ft3/lb. no heat is transferred. Sketch an energy diagram. Determine the work per lb. Is it done on or done by the substance? Determine the work in hp for 10 lb per min.

1. During a steady flow process, the pressure of the working substance drops from 200 to 20 psia, the speed increases from 200 to 1000 fps, the internal energy of the open system decreases 25 Btu/lb, and the specific volume increases from 1 to 8 ft3/lb. no heat is transferred. Sketch an energy diagram. Determine the work per lb. Is it done on or done by the substance? Determine the work in hp for 10 lb per min.

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

Chapter2: Matter And Energy

Section: Chapter Questions

Problem 27RQ: How many Btu/h would be produced in a 12-kW electricheater?

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