An air-standard dual cycle has a compression ratio of 9.1 and displacement of Va= 2.2 L. At the beginning of compression, p1 = 95 kPa,and T1 = 290 K. The heat addition is 4.25 kJ, with one quarter added at constant volume and the rest added at constant pressure.Determine:a) each of the unknown temperatures at the various states, in K.b) the net work of the cycle, in kJ.c) the power developed at 3000 cycles per minute, in kW.d) the thermal efficiency.e) the mean effective pressure, in kPa. Step 1Your AnswerCorrect Answer (Used)Determine each of the unknown temperatures at the various states, in K.T2 =684.1KT3 =1141KT4 =K2081T5 =K1270Step 2X Your answer is incorrect.Determine the net work of the cycle, in kJ.Wcycle =i2.28kJHintSave for LaterAttempts: 1 of 3 usedSubmit Answer

As per BARTLEBY rule i answer only first 3 parts(a,b,c) but i answer one more,so i hope you…

Answered: An air-standard dual cycle has a…

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

An air-standard Otto cycle has a compression ratio of 9. At the beginning of compression, P1 = 100 kPa and T1 = 300 K. The heat addition per unit mass of air is 1350 kJ/kg. Determine: a) the net work, in kJ per kg of air b) the thermal efficiency of the cycle c) the mean effective pressure, in kPa
IMPORTANT: For problem solving items, start your solution by presenting the cycle in P-v and T-s diagrams. Label all points and mark the process where the heat is added and rejected. Also mark the area showing the net work of the cycle. The parameters of the initial state of one kilogram of air in the cycle of an internal combustion engine are o.095 MPa and 65 deg.C. The compression ratio is 12. Compare the values of the thermal efficiency for isobaric and isometric heat supply in the amounts of 820 kJ.
A cycle operates on air occurs as follows: an isentropic compression 1-2, a constant-pressure expansion 2-3, an isentropic expansion 3-4, and finally a constant volume cooling 4-1. The ratio of compression is 14, the ratio of expansion during constant-pressure expansion is 2, P1=47kPa, T1=32o C, V1=0.2m3. a. Find the heat added b. Find the heat rejected c. Find the work on each process and the net work
Q2 a) For the Desal cycle, draw p-v and T-s diagrams and explain all thermodynamic processes of the cycle. Explain the work done and efficiency of the Desal cycle. b) Define the compression ratio and explain your answer by supported formula.
An ideal gas Diesel engine, that has an inlet temperature and pressure of 19 0C and 102 kPa respectively with a compression ratio of 23:1. The maximum cycle temperature is 1,237 0C. Take Specific heat at constant pressure and constant volume for air as 1.005 kJ/kg K and 0.717 kJ/kg K respectively. Calculate the specific heat received to one decimal place and include the correct SI unit.
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 work net
Rankin cycle (Thermodynamics) Show complete and step by step solution. And show the diagram.
1. An engine with a cylinder volume of 250 cc and a volume at top dead centre of 25 cc uses a thermal cycle where the initial stage is an isentropic adiabatic compression process with the equation pvY = C. It is known that the initial conditions are 1 bar and 30°C. After that, a combustion process takes place in which heat is supplied at a constant volume. The heat given is 80 KJ/kg and if the specific heat at constant volume is known to be 0.718 kJ/kg K, determine the maximum temperature and pressure that occur? 2. Air with a mass of 3 kg is heated at constant volume from 25°C to 120°C. The process then takes place at constant pressure so that the gas has a temperature of 550°C. Determine the heat required and the entropy change that occurs during the process? (Air: Cp = 1.005 kJ/kg.K and y = 1.4; and assume Cp does not change with temperature). Known that initial volume is 50 ml and the last volume is 300 ml.
At the beginning of compression in the otto engine cycle, P1= 101.35 kPa, T1 = 21 deg.C and Vi = 0.113 m². At the end of the compression process the pressure is 551.58 kPa. If 174.5 kJ/kg are added during the constant volume reversible. Heating process and the values of k and R for air are 1.4 and 0.287 kJ/kg.deg.K respectively. 2. a. Draw the P-V Diagram b. Draw the T-S Diagram c. Find the temperature at the end of compression d. Find the temperature at the beginning of expansion e. Find Heat removed f. Find the compression ratio g. Find the thermal efficiency
THERMODYNAMICS
The displacement volume of an internal combustron engine is 5.6 liters. The processes within each cylinder of the engine are modeled as an air-standard Diesel cycle with a cutoff ratio ß of 2.4. The state of the air at the beginning of compression is fixed by P 95 kPa, T= liters. For air, take specific heat ratio y 1.4, and R 0.287 kJ kg.K. Determine the net work per cycle, in kl. //int find the temperatures at all states and apply Ocycle= Weycle) b. If the net work per cycle is equal to 4.78 kJ. determine the indicated mean effeetive pressure in kPa, Determine the thermal efficiency. d. Determine the power developed by the engine, in kW, if the cycle is executed 1500 times 27°C, and V = 6.0 a. C. per min
In a constant volume cycle, the pressure at the end of compression is 10 times that at the start, the temperature limits are 20 ° C and 1900 ° C. Determine i. Compression ratio, ii. Thermal efficiency and iii. Work done. Take R = 287 J/kg K, y = 1.4

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS