An adiabatic expansion of air occurs through a nozzle from 830 KPa and 750C to 140 KPa. The initial kinetic energy is negligible. For an isentropic expansion, 4.1 Determine the specific volume 4.2 Determine the final temperature 4.3 Solve for the speed at the exit section

Q: 7. If 10 kgm/min of air are compressed isothermally from p1 = 96 kPa and V1 = 7.65 m³/min to p2 =…

A: According to the question data m=10kg/min P1=96kPa P2=620kPa V1=7.65m3/min Process 1 to 2 is an…

Q: The air in a car tire is held at a pressure of 220 kPa (gage) in an atmosphere where the atmospheric…

A: Given, Gauge pressure inside car tire  = Pcg = 220 kPa Atmoshpheric pressure = Patm = 94 kPa Air…

Q: The adiabatic compressor shown in the figure operates steadily using Hydrogen with the following…

A: Write the given information.

Q: If you had a fixed mass of hot air stored in a rigid container and decided to transfer heat from the…

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Q: Steam at a velocity of 60 m/s and 250°C and 7 bar absolute is expanded through a nozzle to 200 C and…

A:

Q: The probability of event A occurring is 3/20, event B is 11/20, event C is 6/20. What is the entropy…

A: Given: The probability of event A is P1=320. The probability of event B is P2=1120. The probability…

Q: The compressor of a jet engine tested at sea level on a stationary test bed on a day when the…

A: Given data At atmospheric pressure and temperatureT01 = 298 KP01 = 101 kPaMass flow rate = m˙ =  15…

Q: vessel. The vessel is heated until the pressure is 2500 kpa. Compute of the change of entropy in…

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Q: Q3//500 litre of air is compressed in a cylinder fitted with a frictionless piston from 150 KPa and…

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Q: As shown in the figure below, water behind a dam enters an intake pipe at a pressure of 24 psia and…

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Q: Q6: piston cylinder contains I kg water at 200C with a constant load on the piston such that the…

A: The initial state conditions of water are p1=250 kPa, T1=20°C, and the exit state conditions of the…

Q: Two boilers, both operating at 200 psia, discharge equal amounts of steam into the same steam main.…

A: Given data is

Q: Q2: 26 tons of ice from and at 0°C is produced per day in an ammonia refrigerator. The temperature…

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Q: In the air compressor the pressure at inlet and out are 1 bar and 5 bar, respectively. The…

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Q: Compute the change in specific entropy when helium, initially at a temper- ature of 273 K and a…

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Q: A heat pump design creates a heating effect of 35 kW while using 15 kW of electrical power. The…

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Q: Q3: 1kg of air can expand reversibly in cylinder behind a piston in such a way that the temperature…

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Q: e) To prevent the heat loss from the compressor to the surrounding, the compressor is well…

A: As I have solved previous parts of this question so I am attaching those answers for reference.

Q: Q3/ 0.34 m' of a perfect gas at constant pressure of 2.8 bar is heated from 100°C to 300°C and it is…

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Q: Water is compressed adiabatically, but inefficiently, from p1 = 150 kPa and T1 = 160 ∘C to a…

A: Using steam table,

Q: nozzles at a 7. steam enters a group of convergent-divergent pressure of 2.2MPa and with a…

A: When a bod moves in a linear direction, then the displacement by that body in a unit time is known…

Q: There are two masses of finite size in contact with a constant thermal reservoir. Initially, the…

A: Consider a subsystem 1 having an  incompressible fluid of mass mh ,specific heat ch and initial…

Q: reversible non-flow proccess occurs from which work is 9.4 BTU. If the pressure varies as P = -V^2 +…

A:

Q: 3) 2.4 kg of air at a temperature of 523K and a pressure of 650 kPa expand according to the rocesses…

A: P1 = 6.5 bar = . 65 Mpa  T1 = 523 K  R = 0.287 kJ/kg.K  By ideal gas law equation  at point 1 : -…

Q: Problem 4. An air compressor handles 6 L of air at 120 kPa and 20 °C, and delivers it at 1000 kPa…

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Q: Q4: A diffuser, has air entering at 100 kPa, 280 K, with a velocity of 200 m/s. The inlet…

A: ◆ The exit pressure is 124.585 kPa. ◆ The exit temperature is 300 K.

Q: Determine the mass flow rate on an ideal Brayton cycle whose heat addition is 500 kW and 300 kW on…

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Q: where volume V is in m³. Find the final volume.

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Q: are 1.5 Kgm of a gas where K = 1.3 and R = 0.38 KJ/Kgm - °R that undergo an isochoric process from…

A: Given:m=1.5 Kgk=1.3R=0.38 KJ/kg.RP1=0.552 MPaT1=58.5°CP2=1.66 MPaQ=100 KJ

Q: Engr. Darmis is tasked to design a frictionless and constant temperature steady-flow system that…

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Q: 2·5 kg of air at 27 °C and 0·21 m^3 is expanded to 1·05 m^3 . The law of expansion being PV^1.3=C.…

A: Given: The mass of air, m = 2.5 kg The temperature of air initially, T1 = 27oC = 300 K The volume of…

Q: nd k = 1.26. If 20 Btu are added to 5 lb of this gas at constant volume when the initial temperature…

A: Given: R=58.8 ft-lb/lb-0R k=1.26 Q=20 Btu m=5 lb Process- constant volume process Initital…

Q: Hot water at a constant volumetric flow rate of Fh and temperature Th(t) is mixed with cold water…

A: Given: Hot water at a constant volumetric flow rate of Fh and temperature Th(t) cold water at a…

Q: Q2 Calculate the total entropy change when: (a) A block of heat capacity of 200 J/K at 100 °C is…

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Q: An insulated, electrically heated tank for hot water contains 260 kg of liquid water at 95°C when a…

A: The given values are -  Mass of water in tank (M) = 260 kg  Mass flow rate (m) = 0.2 kg/s  Assuming…

Q: Steam at a temperature of 235.5C has a specific volume of 0.17541 m3/kg. What are the pressure,…

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Q: Q3// Air at 290 K is compressed from 101.3 kPa to 2 MPa in a two stage reciprocating compressor. The…

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Q: Air expands in a piston from V1=5L, P1=400kPa, T1=150C to V2= 20L, P2=150kPa. Boundary temperature…

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Q: Don't solve wrong this is important for me. Try to solve in minimum time

A: Tsteel=500o C or 773 KTwater=120o C or 393 Kmwater=20 kgT=150o C or 423 K

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.