Consider an ideal jet propulsion cycle in which air enters the compressor at 0.15mpa and 25oC. The pressure is 1mpa and the maximum temperature is 1150oC. The air expands in the turbine to a pressure at which the turbine work is just equal to the compressor work. On leaving the turbine, the air expands in a nozzle to 0.15mpa. The process is reversible and adiabatic.

Q: A Carnot cycle has a thermal efficiency of 32%. If the reject heat is 750 KJ at 500°C, determine the…

A: Thermal efficiency, η= 32%= 0.32 Heat rejected, Qout= 750 kJ Sink temperature, T2= 500∘C= 500+273=…

Q: Water vapor enters a turbine at a temperature of 300 ° C and a pressure of 600 kPa, leaving it as 20…

A: Given data: P1= 600kpa T1= 300 deg c P2= 20kpa

Q: pumped from 80 kPa to 3 MPa. The pump has an In a power plant, water (density = 1000 kg/m) is…

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Q: Professor Modyn operates an adiabatic turbine where steam enters at 5.0 MPa and 500 ∘C. The steam…

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Q: 2. Steam enters a turbine stage with an enthalpy of 3628 kJ/kg at 74 m/s and leaves the same stage…

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Q: In a real turbine, the entropy of the steam will increase somewhat. How will this affect the…

A: Given Data⇒turbineentropy of the steamProblem definition⇒Problem says how will increase in entropy…

Q: Air enters an air compressor at 100 kPa and 100°C and a flow rate of 5 kg/s. If the air exits at 389…

A: solution p1= 100 kPa      T1= 100 C     P2= 389 kPa      T2= 398 C

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Q: Air enters the compressor of a gas turbine with a regenerator at a temperature of 300 K and a…

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Q: EX1: Given are the following data for a commercial centrifugal water pump: ri =10 cm, r2 = 17.5 cm,…

A: A Centrifugal pump is a mechanical device that converts the low-pressure fluid into the…

Q: Air with mass flow rate of 1 kg/s enters the first stage of a compressor at 100 kPa and 300 K and…

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Q: In turbochargers a turbine is directly connected to a compressor. The power harvested by the turbine…

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Q: Let's assume that we generate electrical energy by means of a turbine generator. Before the steam…

A: Given data P1=105 KpaP2=150 KPaT1=723 KT2=373 K

Q: the compressor and expander have to be assumed to have an actual efficiency that is less than ideal.…

A: Given data: ηC=78%ηE=82% Need to determine the efficiency of the system.

Q: Question 31 Steam overheated at a flow of 3.5 kg/s enters a turbine at 500 °C and 900 kPa and exits…

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Q: Consider a heat engine that has an ideal gas (with heat capacity ratio of γ and δ degrees of…

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Q: B-Prove the Clausius equality for reversible and irreversible cycles

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Q: Refrigerant 134a enters an air-cooled condenser at 12 bars and 60°C, and leaves as a saturated…

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Q: A pump operates with liquid water entering at 200°F and 15 psia with a mass flowrate of 7 lbm/s.The…

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Q: An adiabatic steam turbine receives steam from two boilers. One flow has a mass flow rate (m) of 4.7…

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Q: A Camot engine rejects 1000 Btu/min at 500F and produces 40 hp. Determine (a) the temperature of…

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Q: 12 kg of air per minute is delivered by a centrifugal air compressor It enters the compressor at a…

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Q: A gas turbine compressor unit receives 32.6m^3/min of air at 98kPa and 295K and compresses it in a…

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Q: Q4/Air enters the compressor of a gas-turbine engine at 300 K and 100 kPa, where it is compressed to…

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Q: A large fridge freezer is to extract 80 kJ of energy every second from inside of the fridge,…

A: Dear student, we are suppose to solve only one question. Please post other question as a separate…

Q: Assume all the processes to be reversible and the heat losses from the pump and the turbine to be…

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Q: Water vapor enters the turbine at a steady state of 3 MPa pressure, 400°C temperature and 160 m/s…

A: Given data as per the question The pressure of water vapor at the entrance =3 Mpa The temperature of…

Q: An adiabatic and steady-flow turbine with air as the working fluid initially at 6000 kPa and 550 K…

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Q: compressor is fed with superheated steam at 300°C and 20 bar. The compressor inlet speed is 20 m/s…

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Q: A pump brings in 11.3 kg/s of liquid water feed at 1.66 bar and 50oC . The exit pressure from this…

A: Given- The mass flow rate of water m=11.3 kgs At pump inlet - P1=1.66 bar, T1= 50o C For liquid…

Q: 6. The isentropic efficiency of an actual compressor (air enters at 15 °C and 0.1 MPa at a rate of…

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Q: An air compressor is to be powered by a direct-coupled steam turbine (as shown in the figur that is…

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Q: determine P, in

A: COnversion chart 1 BTU 5.40395 psi ft^3 1 psi 6894.76 Pa     For a reversible process we…

Q: Let's assume that we generate electrical energy by means of a turbine generator. Before the steam…

A: Given in problems Turbine inlet condition P1=1000KPa, T1=450°CTurbine outlet conditionP2=150KPa,…

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.