16-4M A proposed air-standard cycle begins at 1.1 bars, 37°C, and 0.808 m³/kg. Process 1-2 is isentro- pic compression to 3.2 bars: process 2-3 is constant-pressure heating to 1050 K and 0.940 m³/kg; process 3-4 is constant-volume cooling to 1.1 bars; process 4-1 is constant-pressure cooling to the initial state, (4) Sketch Pv and Ts diagrams of the cycle. (b) Determine the amount of heat added and the net work output, in kJ/kg. (c) Compute the thermal efficiency. (d) What is the Carnot efficiency for a heat engine with the same maximum and minimum temperatures as the above cycle? Use air-table data.
16-4M A proposed air-standard cycle begins at 1.1 bars, 37°C, and 0.808 m³/kg. Process 1-2 is isentro- pic compression to 3.2 bars: process 2-3 is constant-pressure heating to 1050 K and 0.940 m³/kg; process 3-4 is constant-volume cooling to 1.1 bars; process 4-1 is constant-pressure cooling to the initial state, (4) Sketch Pv and Ts diagrams of the cycle. (b) Determine the amount of heat added and the net work output, in kJ/kg. (c) Compute the thermal efficiency. (d) What is the Carnot efficiency for a heat engine with the same maximum and minimum temperatures as the above cycle? Use air-table data.
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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Transcribed Image Text:16-4M A proposed air-standard cycle begins at 1.1 bars, 37°C, and 0.808 m³/kg. Process 1-2 is isentro-
pic compression to 3.2 bars: process 2-3 is constant-pressure heating to 1050 K and 0.940 m³/kg;
process 3-4 is constant-volume cooling to 1.1 bars; process 4-1 is constant-pressure cooling to the
initial state,
(4) Sketch Pv and Ts diagrams of the cycle.
(b) Determine the amount of heat added and the net work output, in kJ/kg.
(c) Compute the thermal efficiency.
(d) What is the Carnot efficiency for a heat engine with the same maximum and minimum
temperatures as the above cycle? Use air-table data.
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