Thermodynamics 1 3. Two kg of helium operates on a three-process cyclewhere the processes are constant volume (1-2); constantpressure (2-3); and constant temperature (3-1). Given that P₁ =100 kPa, T₁ = 300 °K and P2/P1 = 5, determine (a) the pressure,and temperature around the cycle; (b) the workfor each process; (c) the heat added.Draw the cycle on diagrams below:PTS3.a.13.a.23.a.33.a.43.b.13.b.23.b.33.c.13.c.23.c.35.aP2 =T2=P3=T3=W1-2W2-3W3-1Q1-2Q2-3Q3-1

Answered: Image /qna-images/answer/815d13d7-79da-4806-ba73-f731ae8ee023.jpg

Answered: 3. Two kg of helium operates on 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

5. Two and one-half pounds of air actuates a cycle composed of the following processes: polytropic compression 1-2 with n = 1.5; constant pressure process 2-3; and constant volume process 3-1. The known data are as follows: p1 = 20 psia, ti = 100°F, QR = -1682 BTU. Determine (a) the temperature and pressure at each state, (b) the net work of the cycle, and (c) the thermal efficiency.
A gas undergoes a cycle in a piston–cylinder assembly consisting of the following three processes:Process 1–2: Constant pressure, p = 1.4 bar, V1 = 0.028 m3, W12 = 5 kJProcess 2–3: Compression with pV = constant, U3 = U2Process 3–1: Constant volume, U1 - U3 = -25 kJThere are no significant changes in kinetic or potential energy.(a) Calculate the net work for the cycle, in kJ.(b) Calculate the heat transfer for process 1–2, in kJ.
20 g of air undergoes a closed cycle, illustrated in Figure Q2, which consists of the following 3 processes: 1-2 Constant pressure heat rejection. 2-3 Constant volume heat addition. 3-1 Isothermal expansion back to the original conditions. P (kPa) 75 1 V (m') 0.025 0.04 Figure Q2: Three process cycle Given that Rair = 287 J/kg-K, and Cy = 718 J/kg-K, and assuming ideal gas conditions throughout: (a) Determine the temperatures at points 1, 2 and 3, and the pressure at point 3. (b) Determine the work during each process, and the net work from the cycle. (c) Determine the heat transferred during each process. (d) Verify that this is a cycle.
2. Two and one-half pounds of air actuate a cycle composed of the following processes: polytropic compression 1-2, with n constant volume 3-1. The known data are: p1 = 20 psia, t -1682 Btu. Determine (a) T2 and T3, (b) the work of the cycle, in Btu; (c) QA, (d) 1.5; constant pressure 2-3B 100°F, QR = %3D %3D the thermal efficiency, and (e) Pm.
Find the minimum work done per Kg of air in a cycle according to the following process: a. isothermal expansion from state 1 to state 2 b. Constant volume compression form state 2 to state 3 c. Constant pressure compression from state 3 to the initial state Data: P1= 350KPa T3= 1650⁰C V1 = 1 m³/Kg represent the work in a P-V diagram
2.Find the minimum work done per Kg of air in a cycle according to the following processes: a. Isothermal expansion from state 1 to state 2. b. Constant volume compression from state 2 to state 3. c. Constant pressure compression from state 3 to the initial state. Data: P1= 350 KPa V1 = 1 m3 /Kg T3 = 16500 C d. Represent the work on a p-V diagram.
2. Two and one-half pounds of air actuate a cycle composed of the following processes: polytropic compression 1-2, with n=1.5; constant pressure 2-3; constant volume 3-1. The known data are: p1 = 20psia, t1 = 100degF, Qr = -1682 Btu. Determine a) T2 and T3, b) the work of the cycle using the pV plane, in Btu; c) Qa, d) the thermal efficiency and e) pm.
A gas inside a piston-cylinder assembly undergoes a refrigeration cycle consisting of these three processes: Process 1–2: Compression with pV = constant from p1 = 1 bar, V1 = 1 m3, to p2 = 10 bar, V2 = 0.1 m3. Process 2–3: Constant volume heating until p3 = p1. Process 3–1: Constant-pressure, adiabatic expansion. There are no changes in kinetic or potential energy. a) Find the work for process 1–2 in kJ. b) Find the work for process 2–3 in kJ. c) Find the work for process 3–1 in kJ. d) Find the net work for the entire cycle in kJ. e) Find the net heat transfer for the entire cycle, in kJ. f) Find the heat transfer for process 3–1 in kJ. g) Knowing Q12 = –100 kJ, find the heat transfer for process 2–3 in kJ.
H.W2: Air undergoes two processes in series: Process 1-2: polytropic compression, with n = 1.3, from pi = 100 kPa, vị = 0.04 m’/kg to v2 = 0.02 m²/kg Process 2–3: constant-pressure process to V3 = Vị Sketch the processes on a p-v diagram and determine the work per unit mass of air, in kJ/kg
The first step of a thermodynamic cycle is an isobaric process with increasing volume. The second is an isochoric process, with decreasing pressure. The last step may be either an isothermal or adiabatic process, ending at the starting point of the isobaric process. Sketch a graph of these two possibilities, and comment on which will have greater net work per cycle.
air undergoes a power cycle composed of the following processes:•Process 1-2: Constant volume fromp1= 138 kPa,T1= 280 K toT2= 455 K•Process 2-3: Adiabatic expansion tov3= 1.4v2•Process 3-1: Constant-pressure compression with a heat loss of 56.8 kJ Sketch the cycle on ap−vdiagram. Considering a mass of air ofm= 0.5 kg, andassuming air as ideal gas, determine: a) the pressure at state 2, in kPa b) the temperature at state 3, in K c) the thermal efficiency of the cycle
H.W2: Air undergoes two processes in series:Process 1–2: polytropic compression, with n = 1.3, from p1 = 100 kPa, v1 = 0.04 m3/kg tov2 = 0.02 m3/kgProcess 2–3: constant-pressure process to v3 = v1Sketch the processes on a p-v diagram and determine the work per unit mass of air, inkJ/kg.

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