1. Consider the dual cycle.Given k - CpBTUlbm. RCvkg.°K'(Cv0.171; P₁ = 101 kPa (14.7 psi) Cv 0.719 kJ T₁-25°C (770F)T₂ - 1620°C (2948 °F) Engine Compression Ratio 17:12 The injectioncycle of this diesel engine is such sufficient energy is added under constant volume toachieve a temperature of 1620°C (2948 °F) at position 3. The additional fuel energyadded between point 3 and point 4 is 600 kJ/kg (260 BTUlb)a). Calculate all the unknown temperatures and pressure at all points in the cycleb). Determine net energy added to the cycle between point 2 and point 2ac). Determine the network for the cycled). Calculate the indicated thermal efficiency for the cycle 4

Answered: Image /qna-images/answer/c1ac70e0-4814-4dbb-a0ef-bd2244a6efe7.jpg

Answered: 1. Consider the dual cycle. Given k -…

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

The Fifth Question: A six-cylinder, 4-stroke petrol engine develops 62 H.P at 3000 r.p.m. The volumetric efficiency at N.T.P. is 85%. The bore is equal to the stroke and thermal efficiency of 25 % may be assumed. Calorific value of petrol is 44100 kj/kg. Air-fuel ratio is to be 15:1. Calculate the cylinder bore and stroke.
Hello, this is the problem attached below: An air-standard dual cycle has a compression ratio of 8.6 and displacement of Vd = 2.2 L. At the beginning of compression, p1 = 95 kPa, and T1 = 290 K. The heat addition is 4.75 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.
14. Horsepower produced if engine is 4 stroke type and has 2 cylinders 15. Mean Effective PRessure
2. An ideal Otto engine operating on the hot air standard with k = 1.34, has a compression ratio of 5. At the beginning of compression the volume is 6 cu ft, the pressure is 13.75 psi and the temp. is 100 °F. During the constant volume heating, 340 BTU are added per cycle. Find a. percent clearance b. T, с. Р, d. Efficiency е. Мер)
7. At the beginning of compression in an ideal air standard Diesel cycle, the compression ratio is 16 with P,= 100 kPa and T,=300K. The maximum temperature of the cycle is 2000K. If c,=1.005 Kj/Kgm-k and c=0.718 Kj/Kgm-k for the air, compute A) the pressure, temperature and volume at four corners of the cycle. B) the heat transfer. C)the work done per kgm for each process, and D) the cycle thermal efficiency
At the beginning of the compression process of air-standard Diesel cycle operating with a compression ratio of 18, the temperature is 300 K and the pressure is 0.1 MPa. The cut-off ratio for the cycle is 2 and the mass flow rate in the system is 1900 kg/hr. Cp=1.006 kJ/kg K Cv= 0.717 kJ/kg K 1) calculate the pressure after compression in kPa? 2) which formula should be used to determine the work output of the engine? 3) calculate the work output of the engine in kW?
An air-standard dual cycle has a compression ratio of 9.1 and displacement of Va= 2.2L.At the beginning of compression, p1= 95 kPa, and T = 290 K. The heat addition is 5 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 1 Your Answer Correct Answer (Used) Determine each of the unknown temperatures at the various states, in K. 684.1 K T3 = K 1217 T4 = 2311 K 1440 K Step 2 X Your answer is incorrect. Determine the net work of the cycle, in kJ. Weycle = I 3.470026652 kJ Hint Save for Later Attempts: 1 of 3 used Submit Answer Step 3 The parts of this question must be completed in order. This part will be available when you complete the part above.
Sketch the air-standard otto ott Diesel cycle on P-V and T-S diagrams. Two engines are to operate on Otto and diesel cycles with the following data; Maximum temperature 1400K, exhaust temperature 700K, state of air at the beginning of compression is 0.1 Mpa and 300k. Compare for 1kg/min of air for respective cycles; i) Compression ratios ii) Maximum pressures iii) Thermal efficiencies iv) Rate of work output
1. An ideal air-standard diesel cycle with inlet conditions: 21.11˚C and 14.7 psia, 700 Btu/lbm heat input, and a compression ratio of 15. Find P2, T2, T3, V3, P4, T4, and the efficiency of the cycle. Take Note: Assume air standard values for R and k Cp = kR/k-1 Cv = R/k-1 a. Find the value of P2. (in psi or lb/in^2) b. Find the value of T2. (in Rankine) c. Find the value of T3. (in Rankine) d. Find the value of V3. (in ft^3/lbm) e. Find the value of P4. (in psi or lb/in^2) f. Find the value of T4. (in Rankine) g. Find the value of efficiency of the cycle. (ex. 100-%)
In an ideal Stirling engine with air recirculation regenerator, the cycle takes place with a maximum and minimum volume of 10.1 and 1.1 liters. Since the cycle minimum pressure is 100 Pa, the maximum temperature is 900 K, the cycle minimum scaldia is 30 C. End of compression is your self (kPa) My cycle is your maximum self (Pa) Motorized air dry eam (kg) We find the right amount (kJ) taken from Cewe. R-0.287 kJg K for air, -1.005 kJ / kg K c − 0.718
COMBUSTION ENGINEERING In an air-standard Otto cycle engine, the following data were obtained: k = 1.4 , C, = 1.0045 ,C, = 0.7175 , P1 = 103 kPa , t, = 26°C, t2 = 414°C, tz = 2527°C, kgK kg-K t4 = 945.8°C. To be done: a. Find the compression ratio r. A. 6,5 В. 7 C. 7.5 D. 8.0 E. None of these b. Find the pressure at the end of the compression stroke p2. А. 1804 КРа В. 1894 КРа С. 1994 КPа D. 2004 КРа c. Find the pressure at the end of heat addition. A. 7700 kPa B. 7719 kPa C. 8019 kPa D. 8800 kPa E. None of these d. Find the pressure at the end of the expansion stroke P4. A. 410 kPa В. 420 kPa C. 8019 kPa D. 460 kPa E. None of these e. Find the Heat added qa to the cycle, in kJ/kg air. A. 1615 kJ/kg C. 1555 kJ/kg E. None of these B. 1575 kJ/kg D. 1516 kJ/kg f. Find the work of the cycle wey, in kJ/kg air. A. 866.1- kg air B. 877.1 k) kg air C. 880.2- D. 900- E. None of these kg air E. None of these kg air Page 1 of 2 g. Calculate the cycle efficiency for the cycle, in percent. A. Ncy =…
Q5 / In an ideal diesel cycle, the compression ratio is 15: the expansion ratio (V. / V.) is 7.5: 1. The pressure and temperature at the start of the pressure are 98 kN / m and 44 C. Select the maximum temperature in the cycle, thermal efficiency For the cycle, k = l.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