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compr ed ad 3 litres. Heat is then suppled at constant volume until the pressure becomes 1.85 MN/m?. adiabatic expansion follows back to the initial pressure of 101 kN/m? and the cycle is completed by heat reiection at constant pressure The cycle js shown in Fig 02 below

compr ed ad 3 litres. Heat is then suppled at constant volume until the pressure becomes 1.85 MN/m?. adiabatic expansion follows back to the initial pressure of 101 kN/m? and the cycle is completed by heat reiection at constant pressure The cycle js shown in Fig 02 below

Elements Of Electromagnetics
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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Air occupying 15 litres at 101 kN/m² and 15°C is compressed adiabatically to a volume of 3 litres. Heat is then suppled at constant volume until the pressure becomes 1.85 MN/m2. adiabatic expansion follows back to the initial pressure of 101 KN/m2 and the cycle is completed by heat rejection at constant pressure. The cycle is shown in Fig. Q2 below. 2. Determine a) the work done during the cycle, and b) the ideal efficiency.
Transcribed Image Text:Air occupying 15 litres at 101 kN/m² and 15°C is compressed adiabatically to a volume of 3 litres. Heat is then suppled at constant volume until the pressure becomes 1.85 MN/m2. adiabatic expansion follows back to the initial pressure of 101 KN/m2 and the cycle is completed by heat rejection at constant pressure. The cycle is shown in Fig. Q2 below. 2. Determine a) the work done during the cycle, and b) the ideal efficiency.
Air occupying 15 litres at 101 kN/m² and 15°C is compressed adiabatically to a volume of 3 litres. Heat is then suppled at constant volume until the pressure becomes 1.85 MN/m2. adiabatic expansion follows back to the initial pressure of 101 KN/m2 and the cycle is completed by heat rejection at constant pressure. The cycle is shown in Fig. Q2 below. i) Determine a) the work done during the cycle, and b) the ideal efficiency. ii) Compare this efficiency with that which would be obtained from a Carnot cycle working between the same upper and lower limits of temperature. Take Y=1.4 and R=0.29 kJ/kg K. 1-85 MN/m: P 101 kN/m2 2-8 L 141 Fig. Q2
Transcribed Image Text:Air occupying 15 litres at 101 kN/m² and 15°C is compressed adiabatically to a volume of 3 litres. Heat is then suppled at constant volume until the pressure becomes 1.85 MN/m2. adiabatic expansion follows back to the initial pressure of 101 KN/m2 and the cycle is completed by heat rejection at constant pressure. The cycle is shown in Fig. Q2 below. i) Determine a) the work done during the cycle, and b) the ideal efficiency. ii) Compare this efficiency with that which would be obtained from a Carnot cycle working between the same upper and lower limits of temperature. Take Y=1.4 and R=0.29 kJ/kg K. 1-85 MN/m: P 101 kN/m2 2-8 L 141 Fig. Q2
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