### Diesel Cycle AnalysisConsider an air-standard Diesel cycle. Operating data at principal states in the cycle are given in the table below. The states are numbered as in the figure.#### Table of Principal States| State | T (K) | p (kPa) | u (kJ/kg) | h (kJ/kg) ||-------|-------|---------|-----------|-----------|| 1 | 380 | 100 | 271.5 | 380.6 || 2 | 1032 | 4074 | 786.2 | 1082 || 3 | 1864 | 4074 | 1546 | 2081 || 4 | 950.6 | 250.2 | 716.7 | 989.5 |#### Graphs and Diagrams- **Pressure vs. Volume (p-v) Diagram**: - The graph shows the relationship between pressure (p) and volume (v) across the different states. - There are four marked states (1 to 4), illustrating the processes of the cycle, including the compression and expansion phases.- **Temperature vs. Entropy (T-s) Diagram**: - This graph illustrates the relationship between temperature (T) and entropy (s) for the Diesel cycle. - Similar to the p-v diagram, the states are labeled from 1 to 4, displaying the heat addition and rejection phases.#### Tasks to Determine(a) **Cutoff Ratio**: - Calculate the ratio of volume at state 3 to volume at state 2.(b) **Heat Addition per Unit Mass (kJ/kg)**: - Determine the energy added to the system as heat per unit mass.(c) **Net Work per Unit Mass (kJ/kg)**: - Calculate the net work output per unit mass during the cycle.(d) **Percent Thermal Efficiency**: - Evaluate the efficiency of the cycle based on the ratio of net work output to heat input.These calculations and diagrams provide an understanding of the Diesel cycle’s thermodynamic processes.

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Answered: Consider an air-standard Diesel cycle.…

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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3The rate of heat addition to an ideal air-standard Brayton cycle is 1.0 x 107 Btu/h. The pressure ratio for the cycle is 12 and the minimum and maximum temperatures are 520°R and 2800°R, respectively.Determine:(a) the percent thermal efficiency of the cycle.(b) the mass flow rate of air, in lb/h.(c) the net power developed by the cycle, in hp.
The state at the beginning of compression of an air-standard Diesel cycle is fixed by p₁ = 100 kPa and T₁ = 310 K. The compression ratio is 18 and the cutoff ratio is 1.9. Determine: (a) the maximum temperature, in K. (b) the pressure at the end of the expansion, in kPa. (c) the net work per unit mass of air, in kJ/kg. (d) the percent thermal efficiency.
At the beginning of the compression process of an Otto cycle, p1 = 14.7 lbf/in.2 and T1 = 530°R. The maximum cycle temperature is 3000°R. On a cold air-standard basis using k = 1.4, determine the net work developed, in Btu per unit mass of air, the thermal efficiency, and mean effective pressure, in lbf/in.2, for compression ratios of 6, 8, and 10.
At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300 K. The compression ratio is 8.5 and the heat addition per unit mass of air is 1400 kJ/kg.Determine:(a) the maximum temperature of the cycle, in K.(b) the net work, in kJ/kg.(c) the percent thermal efficiency of the cycle.(d) the mean effective pressure, in kPa.
1- For modeling a gas turbine power plant producing 10 MW of power, the ideal air-standard Brayton cycle operating at steady state is used. Operating data at principal states in the cycle are given in the table below. The states are numbered as in Fig. below. (a) Sketch the T–s diagram for the cycle and determine (b) the mass flow rate of air, in kg/s, (c) the rate of heat transfer, in kW, to the working fluid passing through the heat exchanger, (d) the thermal efficiency.
The rate of heat addition to an ideal air-standard Brayton cycle is 1.0 x 107 Btu/h. The pressure ratio for the cycle is 12 and the minimum and maximum temperatures are 520°R and 2800°R, respectively.Determine:(a) the percent thermal efficiency of the cycle.(b) the mass flow rate of air, in lb/h.(c) the net power developed by the cycle, in hp.

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