A7.5L pressure cooker has an operating pressure of 175 kPa. The cooker has a pressure relief valve set to release saturated vapour and maintain the pressure once the pressure inside the cooker reaches its operating pressure. Initially, 45% of the volume is filled with saturated liquid water and the remaining volume by water vapour at the operating pressure. Assume that the surrounding temperature and pressure value is 25 °C and 100 kPa. The cooker is now placed on top of a 750 VW electrical heating unit at that is kept on until the dryness fraction of the vapour is 0.0025. An energy conscious person claims that significant reduction in the irreversibility can be achieved if the same amount of heat is supplied from a heat source at 180 °C (e.g. by using a gas hob) instead of the electrical heating unit. Use properties of water as used in the corresponding feedback solution on e-example videos. The loss of Carnot Work Potential (T O*S_loss) in kJ due to irreversibility for the electrical heating unit is: Enter your answer as an integer in the box below. Type your answer.

A7.5L pressure cooker has an operating pressure of 175 kPa. The cooker has a pressure relief valve set to release saturated vapour and maintain the pressure once the pressure inside the cooker reaches its operating pressure. Initially, 45% of the volume is filled with saturated liquid water and the remaining volume by water vapour at the operating pressure. Assume that the surrounding temperature and pressure value is 25 °C and 100 kPa. The cooker is now placed on top of a 750 VW electrical heating unit at that is kept on until the dryness fraction of the vapour is 0.0025. An energy conscious person claims that significant reduction in the irreversibility can be achieved if the same amount of heat is supplied from a heat source at 180 °C (e.g. by using a gas hob) instead of the electrical heating unit. Use properties of water as used in the corresponding feedback solution on e-example videos. The loss of Carnot Work Potential (T O*S_loss) in kJ due to irreversibility for the electrical heating unit is: Enter your answer as an integer in the box below. Type your answer.

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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