Please show solutions to part (b), (c), and (d). Thank you. A system consisting of 1.0...
Please show solutions to part (b), (c), and (d). Thank you.
A system consisting of 1.0 kg of water and undergoes a thermodynamic power cycle composed of the following four processes:
Process 1 – 2: Constant pressure heating at 1 MPa from saturated vapor
Process 2 – 3: Constant volume cooling to p3 = 500 kPa, T3 = 160°C
Process 3 – 4: Isothermal compression with Q34 = -815.8 kJ
Process 4 – 1: Constant volume heating
(a) Sketch the cycle on T - v and p - v diagrams.
(b) Is this a power or refrigeration cycle? Explain.
(c) Determine the work and heat transfer for each process.
(d) Determine the thermal efficiency of the cycle.
(e) Is energy conserved during this cycle? Explain
Please show solutions to part (b), (c), and (d). Thank you.
Homework Answers
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Please show solutions to part (b), (c), and (d). Thank
you.
A system consisting of 1.0...
A system consisting of 1.0 kg of water and undergoes a thermodynamic power cycle composed of...
A system consisting of 1.0 kg of water and undergoes a thermodynamic power cycle composed of the following four processes: Process 1 – 2: Constant pressure heating at 1 MPa from saturated vapor Process 2 – 3: Constant volume cooling to pz = 500 kPa, Tz = 160°C Process 3 – 4: Isothermal compression with Q34 = -815.8 kJ Process 4-1: Constant volume heating (a) Sketch the cycle on T - v and p - v diagrams. (b) Is this...
A piston-cylinder assembly undergoes a cycle consisting of the following three processes:
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100 lb of R22 are in a thermodynamic cycle, consisting of the following process Process 1-2:...
100 lb of R22 are in a thermodynamic cycle, consisting of the following process Process 1-2: isobaric compression from P1=340 psia y T1=215 °F until saturated vapor Process 2-3: constant volume cooling until T3= 120 °F Process 3-4: isobaric expansion Process 4-1: isochoric heating Complete the tables and write if it's a power cycle or a refirgeration cycle State P (psia) T(°F) V(ft3/lb) U(Btu/lb) 1 340 215 2 3 120 4 Process Q(Btu) W(Btu) ΔU(Btu) 1-2 2-3 3-4 4-1 Total
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In this question, assume no changes in Ek or Ep (a) In one cycle of a heat engine: 70 J are input by working, 90 J are output by working, 100 J are input by heating, 80 J are output by heating. Write down which one of the following is true: (A) |Wnet-160 J (B) Iw.et-20 J (C) η-0.25 (b) For a fixed amount of gas,...
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3. A Sterling engine using 1.00 mol of an ideal gas initially at a volume of 24.6L and a temperature of 400K performs a cycle consisting of four steps: (1) An isothermal expansion at a temperature of 400K to twice its initial volume. (2) Cooling at constant volume to a temperature of 300K (3) An isothermal compression to its original volume (4) Heating at constant volume to its original...
Thermodynamics 2.56 A gas within a piston-cylinder assembly undergoes a thermo- dynamic cycle consisting of three...
Thermodynamics
2.56 A gas within a piston-cylinder assembly undergoes a thermo- dynamic cycle consisting of three processes: Process 1-2: Constant volume V1 m, pi bar, to p2 3 bar, U2- U400 kJ Process 2-3: Constant pressure expansion to V 2 m3 Process 3-1: Adiabatic compression, with W1120 kJ There are no significant changes in kinetic or potential energy. De- termine the net work for the cycle, in kJ, and the heat transfers for Processes 1-2 and 2-3, in kJ. Is...
One pound of oxygen O2 undergoes a power cycle consisting of the following processes: 3.145 One...
One pound of oxygen O2 undergoes a power cycle consisting of
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3.145 One lb of oxygen, 02, undergoes a power cycle consisting of the following processes: Process 1-2: Constant-volume heating from P1 = 20 lbf/in. 7, = 500°R to T2 = 820°R. Process 2-3: Adiabatic expansion to = 1.432 Process 3-1: Constant-pressure compression to state 1. Sketch the cycle on a p-v diagram. Assuming ideal gas behavior, determine (a) the pressure at state 2, in lbf/in.2 (b)...
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Determine the constant volume specific heat (kj/kg-K) if the constant pressure specific heat is 1.31 kj/kg-K and the specific heat ratio is 1.49 Selected Answer: [None Given] Correct Answer: 0.879 ± 1 % Question 2 Determine the change in specific enthalpy (kJ/kg) of an incompressible substance with constant specific heats given the following information. C- 4.179 k/kg-K and v 1.021E-3 m3kg T1-300.1°C,P1 -162.3 kPa T2 = 437°C...
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is modeled as an...
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is modeled as an ideal gas with a constant specific heat ratio, k = 1.4. The air undergoes a power cycle consisting of four processes in series: Process 1-2: Constant-temperature expansion at 600 K from P1 = 0.5 MPa to P2 = 0.4 MPa Process 2–3: Polytropic expansion with n=k to P3 = 0.3 MPa Process 3–4: Constant-pressure compression to V4 = V1 Process 4–1: Constant-volume heating. (a)...
Please answer the following question completely and correctly. Please show all work and write neatly. 3....
Please answer the following question completely and correctly.
Please show all work and write neatly.
3. A sample of 1.00 mol ideal gas molecules with Cp, m = 7/2 R is initially at p = 1.00 bar and V = 22.44 L and then put thought the following cycle in reversible processes: (a) constant-pressure expansion to twice its initial volume, (b) constant-volume cooling to its initial temperature, (c) isothermal-compression back to 1.00 bar. Calculate q, w, AU, AH, AS for...
A system consisting of 1.0 kg of water and undergoes a thermodynamic power cycle composed of the following four processes: Process 1 – 2: Constant pressure heating at 1 MPa from saturated vapor Process 2 – 3: Constant volume cooling to pz = 500 kPa, Tz = 160°C Process 3 – 4: Isothermal compression with Q34 = -815.8 kJ Process 4-1: Constant volume heating (a) Sketch the cycle on T - v and p - v diagrams. (b) Is this...
A, B , D ,E PLEASE SOLVE THEM
( DETAILED SOLUTION + CLEAR HANDWRITING)
In this question, assume no changes in Ek or Ep (a) In one cycle of a heat engine: 70 J are input by working, 90 J are output by working, 100 J are input by heating, 80 J are output by heating. Write down which one of the following is true: (A) |Wnet-160 J (B) Iw.et-20 J (C) η-0.25 (b) For a fixed amount of gas,...
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3. A Sterling engine using 1.00 mol of an ideal gas initially at a volume of 24.6L and a temperature of 400K performs a cycle consisting of four steps: (1) An isothermal expansion at a temperature of 400K to twice its initial volume. (2) Cooling at constant volume to a temperature of 300K (3) An isothermal compression to its original volume (4) Heating at constant volume to its original...
Thermodynamics
2.56 A gas within a piston-cylinder assembly undergoes a thermo- dynamic cycle consisting of three processes: Process 1-2: Constant volume V1 m, pi bar, to p2 3 bar, U2- U400 kJ Process 2-3: Constant pressure expansion to V 2 m3 Process 3-1: Adiabatic compression, with W1120 kJ There are no significant changes in kinetic or potential energy. De- termine the net work for the cycle, in kJ, and the heat transfers for Processes 1-2 and 2-3, in kJ. Is...
One pound of oxygen O2 undergoes a power cycle consisting of
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Determine the constant volume specific heat (kj/kg-K) if the constant pressure specific heat is 1.31 kj/kg-K and the specific heat ratio is 1.49 Selected Answer: [None Given] Correct Answer: 0.879 ± 1 % Question 2 Determine the change in specific enthalpy (kJ/kg) of an incompressible substance with constant specific heats given the following information. C- 4.179 k/kg-K and v 1.021E-3 m3kg T1-300.1°C,P1 -162.3 kPa T2 = 437°C...
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Please answer the following question completely and correctly.
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3. A sample of 1.00 mol ideal gas molecules with Cp, m = 7/2 R is initially at p = 1.00 bar and V = 22.44 L and then put thought the following cycle in reversible processes: (a) constant-pressure expansion to twice its initial volume, (b) constant-volume cooling to its initial temperature, (c) isothermal-compression back to 1.00 bar. Calculate q, w, AU, AH, AS for...
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