One kg of steam at 1.4MPA is throttled to IMPA at which pressure it is just dry. The steam is then expanded in an engine cylinder down to 0.1 MPa, the final dryness fraction being 0.75. The steam is finally passed to a feed water heater in which only the enthalpy of evaporation is extracted, the temperature of the feed water rising from 15 oC to 60 oC. Determine: a- the original dryness fraction of the steam b- the law of expansion in the engine cylinder c- the quantity of feed water heated/ kg of steam. 9. (0.994, 1.225; 8.98kg/kg steam)

One kg of steam at 1.4MPA is throttled to IMPA at which pressure it is just dry. The steam is then expanded in an engine cylinder down to 0.1 MPa, the final dryness fraction being 0.75. The steam is finally passed to a feed water heater in which only the enthalpy of evaporation is extracted, the temperature of the feed water rising from 15 oC to 60 oC. Determine: a- the original dryness fraction of the steam b- the law of expansion in the engine cylinder c- the quantity of feed water heated/ kg of steam. 9. (0.994, 1.225; 8.98kg/kg steam)

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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