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A closed system consists of gas of 2 kg initially in state 1 with p1 = 4bar and specific volume 1m3 /kg. The system undergoes a power cycle consisting of the following V1 = processes: Process 1-2: polytropic process to v2 = 2m³/kg, P2 = 1bar; Process 2-3: isobaric compression to v1; Process 3-1: isochoric process to P1. Write the formula for the cycle work. Determine Wcycle and Qcycle-

= 95°F and m3 = 1.5 lb/s. Refrigerant 134a The figure belows shows three components of an air-conditioning system, where T3 flows through a throttling valve and a heat exchanger while air flows through a fan and the same heat exchanger. Data for steady- state operation are given on the figure. There is no significant heat transfer between any of the components and the surroundings. Kinetic and potential energy effects are negligible. Air Tj = 535°R C,= 0.240 Btu/I6•°R Saturated liquid R-134a T3, ṁ3 Fan Wey = -0.2 hp Throttling valve 4 Saturated vapor P5=P4 P4 = 60 lbf/in.2 T = 528°R -Heat exchanger Modeling air as an ideal gas with constant c, = 0.240 Btu/lb· °R, determine the mass flow rate of the air, in Ib/s. i Ib/s

Carbon dioxide (CO2) contained within a piston cylinder undergoes three processes in series: = p1 10 bar, V₁ = 0.25 m³, to V₂ = 2.3 m³ during Process 12: Expansion from which the pressure-volume relationship is pV = constant Process 23: Constant volume heating from state 2 to state 3 where p3 = 10 bar Process 31: Constant pressure compression to the initial state. Sketch (don't have to use a computer) the process in series on a pV diagram (p on y-axis, V on x-asix) and evaluate the moving boundary work for each process.

The figure below shows a turbine-driven pump that provides water to a mixing chamber located dz = 5 m higher than the pump, where in = 50 kg/s. Steady-state operating data for the turbine and pump are labeled on the figure. Heat transfer from the water to its surroundings occurs at a rate of 2 kW. For the turbine, heat transfer with the surroundings and potential energy effects are negligible. Kinetic energy effects at all numbered states can be ignored. h2 = 417.69 kJ/kg Mixing chamber Ocy = 2 kW Steam P3 = 30 bar T3 = 400°C dz Turbine Pump P4 = 5 bar T4 = 180°C Saturated liquid water m, Pi = 1 bar Determine: (a) the magnitude of the pump power, in kW. (b) the mass flow rate of steam, in kg/s, that flows through the turbine.

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.

I need to draw the graph also.

Please can you solve this question in thermodynamics

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Air contained within a piston–cylinder assembly undergoes three processes in series: Process 1–2: Compression during which the pressure–volume relationship is pV = constant from p1 = 10 lbf/in.2, V1 = 4 ft3 to p2 = 50 lbf/in.2 Process 2–3: Constant volume from state 2 to state 3 where p = 10 lbf/in.2 Process 3–1: Constant pressure expansion to the initial state. Sketch the processes in series on p–V coordinates. Evaluate (a) the volume at state 2, in ft3, and (b) the work for each process, in Btu.

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Q A horizontal piston-cylinder assembly contains 2.00 kg of a fluid. The assembly is fitted with both a heater and a paddle wheel. It is found that the fluid undergoes an expansion from state 1 to state 2. During the process, the paddle wheel transmits 16.4 kJ of mechanical energy (Wp.w.) to the fluid via mixing, and the heater supplies 83 kJ of thermal energy (Q) to the fluid. The specific internal energy changes from U1 = 2386.6 kJ/kg to U2 = 2409.1 kJ/kg during the process. Determine the work done by the steam on the piston during the process (Wpiston) (kJ). Your Answer: 45°F hp Insert * 24 % 8. 4 R H J K D F CV B N M

A closed system contains 1.2 kg of fluid, initially at 1.3 bar with a specific volume of 0.8 m3/kg. It undergoes a simple cycle as follows: 1-2 Constant volume heat addition of 26 kJ to 2.9 bar 2-3 Adiabatic expansion back to original pressure (k=1.4) • 3-1 Constant pressure process back to original conditions. Find for each process: • Work done Heat transfer Change of internal energy

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0.5-kg of air undergoes a power cycle consisting of the following process: Process 1-2: Constant volume from p1 = 1.4 bar, T1 = 5 °C to T2 = 180 °C. Process 2-3: Adiabatic expansion to v3 = 1.4v2 Process 3-1: Constant-pressure compression Assuming ideal gas behavior, determine a) the pressure at State 2, in bar. b) the temperature at State 3, in °C. c) the thermal efficiency of the cycle.

2.15 Air undergoes two processes in series! Process 1-2: polytropic compression, with n = 1.3, from pi= 100 kPa. v₁ = 0.04 m³/kg to 1/2 = 0.02 m³/kg Process 2-3: constant-pressure process to 3 = V₁ Sketch the processes on a p-v diagram and determine the total work per unit mass of air, in kJ/kg.

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Include simple schematic , process digram , and assumption

A fixed-mass system contains mass, m = 1.0 kg of air. A thermodynamic process occurs from state one to state two, where T₁ = 300 °K, P₁ = 100 kPa; T₂ = 2700 °K, P₂ = 204.9953251 kPa. Determine S₂ - S₁ = m (S₂-S₁) in kJ / °K. Note: You are required to assume constant specific heats in this problem, with Cpo = 1.004 kJ/(°K * kg); for air, the gas constant is R = 0.287 kJ/(°K * kg).

Solve for velocity in ft/s and the power required in hp. Step by step solution thank you