1.19) A thermodynamic cycle involves the following 4 processes. Draw the cycle on a single PT diagram. (a) An isobaric heating from 500 K and 400 kPa to a temperature of 700 K (b) An isothermal compression to a pressure of 800 kPa (c) An isobaric cooling to a temperature of 500 K (d) An appropriate isothermal expansion to close the cycle Note: The chart should be drawn to scale, neatly accurately. Use a ruler and label your axis.

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2. A steam power plant works between 40 bar and 0.05 bar. If the steam supplied is dry saturated and the cycle of operation is Rankine, find : (1) Cycle efficiency (i) Specifie steam consumption. (Ans. G) 35.5%, (i) 3.8 kg/kWh]

Thermodynamics: Please make a sketch of a Carnot cycle for an ideal gas on a) a u-h diagram b) P-T diagram Also, explain why the sketches look the way they do on a u-h diagram and a P-T diagram. In other words, how did you come to the conclusion that a Carnot cycle makes such a cycle in a u-h and a P-T diagram? Please need complete answer of all parts in details and every step If u don't know all parts please skip because short answer gives u downvotes

Thermodynamics of the Otto cycle (gasoline engine) A gasoline engine is an internal combustion engine, typically consisting of one or more piston-cylinder assemblies. The operation of a gasoline engine is approximated by the Otto cycle, composed of the following processes: Point 1: (start of the cycle), the cylinder is at its maximum volume Vmax: A cold mixture of fuel and air is introduced into the cylinder. Process 1 → 2 (compression stroke): The cylinder contracts until the volume of the cylinder reaches Vmin, compressing the fuel-air mixture adiabatically. Work is done by on the system by its surroundings. Process 2 → 3 (): A spark is generated within the cylinder, igniting the fuel-air mixture. The fuel burns very rapidly, such that the volume of the cylinder changes by approximately zero during this step. The combustion of the fuel corresponds to a heat transfer Qin into the system during this constant-volume, or isochoric, process. Process 3 → 4 (power stroke): The cylinder…

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6.15 A quantity of air undergoes a thermodynamic cycle consisting of three processes in series. Process 1-2: constant-volume heating from P₁ = 0.1 MPa. T₁ = 15°C. V₁ = 0.02 m² to P2 = 0.42 MPa Process 2-3: constant-pressure cooling Process 3-1 isothermal heating to the initial state Employing the ideal gas model with cp = 1 kJ/kg K, evaluate the change in entropy for each process. Sketch the cycle on p- coordinates.

Problem 1) Rankine Cycle Analysis Consider a simple Rankine cycle, steam power plant. The state points are defined in the schematic and the operating conditions are given in the Table la. The steam flow rate is 137.4 lbm/s. You may use "EES," but supply your code. a) Provide a quantitative T-s diagram including all state points, lines of constant pressure, and the "dome." b) Determine all the energy quantities and complete Table 1b. Discuss the value of the quality at state 4. c) Determine all the exergy quantities and complete Table 1c. Assume the dead state temperature is 77°F and the dead state pressure is 14.7 psia. d) Discuss your results. What additional insights does the exergy analysis provide? 3 Quoiler 4 Fuel State 1 2 3 4 State 1 2 3 4 State br (Btu/lbm) 1 ? 2 ? Boiler ? ? Table 1a: State Points and Other Items T (°F) p (psia) Variable ? 0.71 XI ? 700 turbine 1057 700 pump ? 0.71 boiler T (°F) p (psia) ? 0.71 Turbine ? 1057 ? Condenser Table 1b: Energy Results 700 700 0.71 W…

Mechanical Engineering Question

1.) A four-cylinder, 2.4-liter engine operates on a four-stroke cycle at 3200 RPM. The compression ratio is 9.4:1, the connecting rod length r= 18 cm, and the bore and stroke are related as S = 1.06B. %3D (a) clearance volume of one cylinder in cm³, (b) bore and stroke in cm, (c) average piston speed in cm/sec. (d) the piston speed when the crank angle 0 = 90° aTDC? (m/sec)