3. Using the processes in the P-v and T-s Diagram for an Air Standard Dual Cycle, derive the formula of its thermal efficiency as a shown below as function of k, rc a and B. Pressure, P where: 7₂ = T = compression ratio k-cp/c, (n)Dual = 1 − (1/re)k-¹[{aßk - 1}/{ka(ß − 1) + œ - 1}] TDC a = pressure ratio B = cutoff ratio Specific Volume, v (a) 511 BDC Temperatura, Entropy, e (b)

3. Using the processes in the P-v and T-s Diagram for an Air Standard Dual Cycle, derive the formula of its thermal efficiency as a shown below as function of k, rc a and B. Pressure, P where: 7₂ = T = compression ratio k-cp/c, (n)Dual = 1 − (1/re)k-¹[{aßk - 1}/{ka(ß − 1) + œ - 1}] TDC a = pressure ratio B = cutoff ratio Specific Volume, v (a) 511 BDC Temperatura, Entropy, e (b)

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

See similar textbooks

Similar questions

Hello im having some troubles with this question An air-standard cycle is executed within a closed piston–cylinder system and consists of three processes as follows: 1→2: constant-volume head addition from 100 kPa and 27°C to 850 kPa 2→3: isothermal expansion until ?3 =7?2 3→1: constant-pressure heat rejection to the initial state. Assuming that air has constant properties with Cv = 0.718 kJ/kg·K, Cp = 1.005 kJ/kg·K, γ = 1.4 and R=0.287 kJ/kg.K (a) Sketch the T-S and P-V diagram of the cycle (b) Determine the ratio of the compression work to the expansion work (c) Calculate the cycle thermal efficiency
At the beginning of the compression process in an air standard dual cycle, P1 = 1 bar and T1 = 300 K. Qin is 1000 kJ/kg. Consider compression ratio ranging from 10 to 20. Determine T5 and P5
At the beginning of the compression process in an air standard dual cycle, P1 = 1 bar and T1 = 300 K. Qin is 1000 kJ/kg.Consider compression ratio ranging from 10 to 20. Determine v1 and v2
Draw and label the P-V and T-S diagrams. In an ideal Brayton cycle, air enters the compressor section at 14.7 psia and 55°F. The pressure ratio is 12. Turbine inlet condition of 1300°F. Determine the following:a. Work, per unit massb. Heat Rejected, per unit massc. Thermal Efficiency
Air enters the compressor of an ideal air-standard Brayton cycle at 110 kPa, 289 K, with a volumetric flow rate of 5 m3/s. The compressor pressure ratio is 12:1. The turbine inlet temperature is 1567 K. Take the gas constant as 289 J/kg.K and Specific heat at constant pressure and constant volume for air as 1.004 kJ/kg K and 0.708 kJ/kg K respectively. Calculate the net power developed to two decimal places and include the correct SI unit symbol.
The compression ratio of an air-standard dual cycle is 10:1, it begins at 120 kPa and 300 K, and the total heat intake of the cycle has a value of 275 kJ/kg. If this heat intake at constant volume is three-fifth of the total, determine the following: V1, P2, V2, T2, T3, P3, T4, V4, T5, heat rejected, net work, volume displacement and mean effective pressure.
3. Draw the graph of Otto air standard cycle and prove that the thermal efficiency is equal to:notto = 1-1/r^y-1 for the range of r=8-12, y=1.5. where r is the compression ratio and y is the specific heat ratio.
The compression ratio of an air-standard Otto cycle is 7.5. P1 = 85 kPa and T1 = 32 Celsius at the startof compression. The highest temperature in the cycle is 960 K, and the mass of air is 3 g. determine the: (a) the heat rejection, in kJ, (b) the network, in kJ (c) the thermal efficiency, and the (d) mean effective pressure, in kPa. Show complete solution.
Calculate the efficiency of an Diesel cycle assuming Cold Air-Standard Analysis operating in air (k= 1.4) with a compression ratio of 20 and a cutoff ratio of 1.7? (Enter your answer as a percent to the nearest 1/10th)
An air-standard Diesel cycle has a maximum temperature of 1800 K. At the beginning of compression, pq =95 kPa and T1 = 300 K. The mass of air is 12 g. For a compression ratio of 15, determine (a) the net work of the cycle, in KkJ. (b) the thermal efficiency. (c) the mean effective pressure, in kPa.
At the beginning of the compression process in an air standard dual cycle, P1 = 1 bar and T1 = 300 K. Qin is 1000 kJ/kg.Consider compression ratio ranging from 10 to 20. Determine the temperature at the end of each heat addition process and the mean effective for different fractions of constant volume and constant pressure heat addition.
Draw the graph of Otto air standard cycle and prove that the thermal efficiency is equal to: Motto = 1_1/r^y-1 , where r is the compression ratio and y is the specific heat ratio.