A long roll of 2-m-wide and 0.5-cm-thick 1-Mn manganese steel plate (ρ = 7854 kg/m3 and cp = 0.434 kJ/kg·°C) coming off a furnace at 820°C is to be quenched in an oil bath at 45°C to a temperature of 51.1°C. If the metal sheet is moving at a steady velocity of 10 m/min, determine the required rate of heat removal from the oil to keep its temperature constant at 45°C.

Q: A pneumatic (air charged) lifting device is shown in the figure, which consists of a piston-cylinder…

A: First law of thermodynamics  First law of thermodynamics says that energy can not be created nor be…

Q: Determine the heat in kJ/s of 11.37-kg/s of steam from 2.8 MPa at 340°C to 0.76 MPa at 200°C.

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Q: A 0.5-m3 rigid tank contains nitrogen gas at 600 kPa and 300 K. Now the gas is compressed…

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Q: In the condenser of a thermoelectric plant, steam will be condensed at a temperature of 50°C by…

A: The principle of heat balance is used to solve the problem that is heat absorbed by the lake water…

Q: piston cylinder assembly initially contains 25g of saturated water vapor at 600kpa pressure. Then,…

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Q: Consider a vessel which has a resistance heater and a mixer. is filled with 3.6 kg of saturated…

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Q: A rigid tank contains 2.2 lbm of R-134a, initially at 70 psia and 160F. The fluid is then allowed…

A: Given: The mass of the R-134a in the tank, m = 2.2 lbm The initial pressure of R-134a in the tank,…

Q: (4) A mass of 3 kg of R-134a fill a piston-cylinder device with and initial volume of 0.279 m³ at a…

A: Refrigerant R-134a, also known as 1,1,1,2-tetrafluoroethane, R-134a, Freon 134a, Forane 134a,…

Q: 7-107 A constant-volume tank contains 5 kg of air at 100 kPa and 327°C. The air is cooled to the…

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Q: What happens when a saturated vapor is heated at constant pressure? What happens when it is…

A: Water is considered to be in the state of saturated vapor when it contains all the composition of…

Q: A 14-ft3 tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank is…

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Q: a) Draw the process on the PV diagram and explain the changes of pressure and volume durin the…

A: Pneumatic: The pneumatic is the system in which the pressurized air used for the applications. The…

Q: Before the widespread use of mechanical refrigeration, cooling was provided by ice, which was…

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Q: Determine the ratio of work steady flow for isobaric process to the work steady flow for polytropic…

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Q: At P = 0.5 MPa and H = 990 kJ/kg, explain why steam exists as a wet steam.

A: Given Data P = 0.5 MPa  H = 990 kJ/kg,

Q: An insulated rigid tank of 0. 3 m3 is to be filled with steam by connecting it to a high-pressure…

A:

Q: There is 1.57 kg of gas, for which R= 432.5 J/kg•K and k= 1.34, that undergo a non-flowmetric…

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Q: How much thermal energy is required to boil 2.00 kg of water at 100.0°C into steam at 125°C? The…

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Q: How long does it take a 750- W coffeepot to bring to a boil 0.56 L of water initially at 9.6 ∘C ?…

A: According to the givn data Power, P = 750 W mass of water, m = 0.56 L =0.56x10-3m3 mass of aluminum,…

Q: n this compression pro

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Q: Please do not use the answers to calculate the answer, Find the answer the normal way.

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Q: A cooling device removes the heat in the amount of 2368 J/s from the cooled environment at -2°C and…

A: Given ,  T_L= -2 degree Celsius  Q_in = 2368 w  T_H = 28 degree Celsius

Q: An isentropic steam turbine processes 2 kg/s of steam at 3 MPa, which is exhausted at 100 kPa and…

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Q: Air enters an adiabatic nozzle at 750 kPa and 307°C with velocity of 300 m/s. It leaves the nozzle…

A: Given Data  At state 1 P1=750KPa T1=307C C1=300 m/s At state 2 T2=77C A1=2A2

Q: In a boiler of a steam power plant the incoming water is heated to steam by hot gas flowing around…

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Q: a. b. C. A jet lands on an aircraft carrier at 60 m/s. What is its acceleration if it stops in 2 -30…

A: Option A is the correct answer

Q: 4- Frictionless piston cylinder device contains 8 kg of steam at 500 kPa and 300°C. The steam now is…

A: As per the guidelines, I can solve only first three sub-parts. For rest parts, please re-post in a…

Q: A spring-loaded piston-cylinder device contains 2.5 kg of carbon dioxide. This system is heated from…

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Q: A 0.8-m3 rigid tank contains nitrogen gas at 600 kPa and 300 K. Now the gas is compressed…

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Q: Nitrogen gas flows through a long, constantdiameter adiabatic pipe. It enters at 100 psia and 120°F…

A: In order to proceed with the given problem some assumptions need to be taken into consideration.…

Q: An ideal free piston-cylinder with an initial volume of 0.5500 m³ contains 19.00 kg of refrigerant…

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Q: Steam enters an adiabatic nozzle at 2 MPa and 350°C with a velocity of 55 m/s and exits at 0.8 MPa…

A: Given data P1=2 MPaT1=350 °cV1=55 m/sP2=0.8 MPaV2=390 m/sA1=7.5 cm2

Q: ces Neon is compressed from 100 kPa and 23°C to 500 kPa in an isothermal compressor. Determine the…

A: Given data  P1 = 100 kpa T1= T2 = 23°C Compressed to P2 = 500 kpa. Find the change in specific…

Q: Stainless steel ball bearings (p = 8085 kg/m³ and cp = 0.480kJ/(kg °C)) having a diameter of 1.5 cm…

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Q: Consider a rigid container that is initially empty, connected by a valve to a feed line of water at…

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Q: Stainless-steel ball bearings (ρ = 8085 kg/m3 and cp = 0.480 kJ/kg·°C) having a diameter of 1.8 cm…

A: Given data: The density of ball, ρ = 8085 kg/m3. The specific heat, cp = 0.480 kJ/kgˑo The diameter…

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.