An air-standard cycle is executed in a closed system and is composed of the following four processes: 1→2: Constant volume heat addition from 200 kPa and 400 K in the amount of 600 kJ/kg. 2→3: Constant P heat addition to 2000 K. 3→4: Isentropic expansion to 200 kPa. 4→1: Constant P heat rejection to the initial state. (a) Show the cycle on a T-s diagram. Clearly label each of states 1–4 and correctly indicate the shape and direction of each process line. (b) What is the total heat input per unit mass for this cycle? Use cold-air-standard assumptions. (c) Determine the thermal efficiency of the cycle.
An air-standard cycle is executed in a closed system and is composed of the following four processes: 1→2: Constant volume heat addition from 200 kPa and 400 K in the amount of 600 kJ/kg. 2→3: Constant P heat addition to 2000 K. 3→4: Isentropic expansion to 200 kPa. 4→1: Constant P heat rejection to the initial state. (a) Show the cycle on a T-s diagram. Clearly label each of states 1–4 and correctly indicate the shape and direction of each process line. (b) What is the total heat input per unit mass for this cycle? Use cold-air-standard assumptions. (c) Determine the thermal efficiency of the cycle.
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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An air-standard cycle is executed in a closed system and is composed of the following four
processes:
1→2: Constant volume heat addition from 200 kPa and 400 K in the amount of 600 kJ/kg.
2→3: Constant P heat addition to 2000 K.
3→4: Isentropic expansion to 200 kPa.
4→1: Constant P heat rejection to the initial state.
(a) Show the cycle on a T-s diagram. Clearly label each of states 1–4 and correctly indicate the
shape and direction of each process line.
(b) What is the total heat input per unit mass for this cycle? Use cold-air-standard assumptions.
(c) Determine the thermal efficiency of the cycle.
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