PART E ONLY Consider a piston-cylinder device containing m = 1 kg of air at the initial temperature T1 = 900K and pressure P1 = 895 kPa (state 1). The ambient temperature and pressure are maintained at T (e) = 300K and P (e) = 100 kPa. The air expands in a reversible adiabatic process until the air pressure reaches the ambient pressure P(e) (the intermediate state 2). Subsequently, the system undergoes an isobaric process until it reaches the dead state DS. Evaluate the exergy X1 of the initial state 1 and answer the following question: • Is the useful work in the process 1 → 2 → DS smaller, equal, or greater than exergy X1? EXPLAIN
PART E ONLY Consider a piston-cylinder device containing m = 1 kg of air at the initial temperature T1 = 900K and pressure P1 = 895 kPa (state 1). The ambient temperature and pressure are maintained at T (e) = 300K and P (e) = 100 kPa. The air expands in a reversible adiabatic process until the air pressure reaches the ambient pressure P(e) (the intermediate state 2). Subsequently, the system undergoes an isobaric process until it reaches the dead state DS. Evaluate the exergy X1 of the initial state 1 and answer the following question: • Is the useful work in the process 1 → 2 → DS smaller, equal, or greater than exergy X1? EXPLAIN
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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PART E ONLY
Consider a piston-cylinder device containing m = 1 kg of air at the initial temperature T1 = 900K and pressure P1 = 895 kPa (state 1). The ambient temperature and pressure are maintained at T (e) = 300K and P (e) = 100 kPa. The air expands in a reversible adiabatic process until the air pressure reaches the ambient pressure P(e) (the intermediate state 2). Subsequently, the system undergoes an isobaric process until it reaches the dead state DS.
Evaluate the exergy X1 of the initial state 1 and answer the following question: • Is the useful work in the process 1 → 2 → DS smaller, equal, or greater than exergy X1?
EXPLAIN
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