27. An electric calorimeter samples steam with a line pressure of 0.175 MPa. The calorimeter adds200 W of electricity to sampled steam having a resultant pressure of 100 kRa, temperature of140°C, and a flow rate of 11 kg/h. Determine the main steam quality.28. Three kilograms of ammonia are expanded isothermally in a piston-cylinder from 1400 kRa and80'C to 100 kPa, The heat loss is 495 kJ/kg. Determine (a) the system work: (b) the change ofenthalpy: (c) the change of internal energy29. Refrigerant 12 is expanded steadily in an isothermal process. The flow rate is 13.6 kg/min withan inlet state of wet saturated vapor with an 80% quality to a final state of 70°C and 200 kPa,The change of kinetic energy across the device is 3.5 ki/kg and the heat added is 21.81 kw.Determine the system power.

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27. An electric calorimeter samples steam with a line pressure of 0.175 MPa. The calorimeter adds 200 W of electricity to sampled steam having a resultant pressure of 100 kea, temperature of 140°C, and a flow rate of 11 kg/h. Determine the main steam quality.

27. An electric calorimeter samples steam with a line pressure of 0.175 MPa. The calorimeter adds 200 W of electricity to sampled steam having a resultant pressure of 100 kea, temperature of 140°C, and a flow rate of 11 kg/h. Determine the main steam quality.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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