Write down the total thermal resistance for a double-pipe heat exchanger. Show how to convert from total resistance to an overall heat-transfer coefficient. Explain how flow regime may affect overall heat transfer rate.

Q: Concentric Tube Heat Exchanger What are thermal and hydrodynamic entrance length? Are either (or…

A: Let us discuss about hydrodynamic entrance length and thermal entrance length.

Q: An acid (Cp = 2000 J/kg-K) is being cooled from 80 degC to 55 degC by heat exchange with water…

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Q: Functionality, advantages and disadvantages and efficiencies of a tube and shell heat exchanger and…

A: Shell and Tube Heat Exchanger : Functionality :  Tubular heat exchanger is mainly used to raise the…

Q: For phase-free heat transfer and turbulent flow on both sides of a tube-boiler type heat exchanger,…

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Q: With sketches, distinguish between parallel and counterflow heat exchangers. Why is the counterflow…

A: To find : 1. distinguish between parallel and counter-flow heat exchangers               2. Why is…

Q: A counter-flow heat exchanger is stated to have an overall heat transfer coefficient, based on…

A: Given data: When operating under clean conditions, Uclean = 50 Btu/h·ft2·°F Fouling factor, Rf =…

Q: An unfinned single-pass cross-flow heat exchanger is being designed with an available surface area…

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Q: A double-pipe heat exchanger is made up from an interior thick-tube (k = 110 W/m K) with internal…

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Q: Illustrate example of heat exchanger with baffle. Explain the role of the baffles in a…

A: Heat exchangers are defined as the energy conversion devices that involve heat exchange among two…

Q: A doube pipe heat exchangeris to be designed to heat 1 kg/s of cold fluid from 30 degree celusis to…

A: Heat Exchanger is a steady flow adiabatic device(open system) in which two flowing fluids exchange…

Q: QUESTION 8 A concentric-tube, counter-flow heat exchanger, as shown below, is used to cool mercury…

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Q: In a double pipe heat exchanger handling a hot fluid from 95 °C to 85 °C with help of cold fluid…

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Q: A double tube heat exchanger is made of copper (k=380 W/m.°C). Inner diameter of inner tube Di=1.2…

A: Given: The thermal conductivity of the copper, k = 380 W/m°C The inner diameter of inner tube, Di =…

Q: Which one of the following options is the reason for lower operating cost of double pipe heat…

A: Answer: SMALL AREA

Q: Water with a density of 1000 kgm³ is pumped through a counter flow heat exchanger mounted on a large…

A: Given:Pipe diameter, d=50 mm=0.05 mLength of the pipe, L=150 mPressure drop in heat exchanger,…

Q: Water with a flow rate of 225 kg / h and a specific temperature of 4188 J / kgK is heated by a…

A: Given data: Mass flow rate of water, m˙w=225 kg/hr and it's specific heat, Cw=4188 kJ/kg.K.…

Q: Explain the procedure of design and analysis of a heat exchanger using concept of LMTD and the…

A: In parallel or counter flow heat exchangers the temperature difference between hot and cold fluid…

Q: Water is used to cool ethylene glycol in a 60-ft-long double pipe heat exchanger made of 4-std and…

A: Given,T1 = 180oFmw = 20 lbm/secmc = 30 lbm/sect1 = 60oFFrom Copper Tubing:4 - std => IDa = 0.3279…

Q: Under what conditions can a counter-flow heat exchanger have an effectiveness of one? What would…

A: Effectiveness of heat exchanger is given by If the capacity ratio is one, then the NTU value is…

Q: Hot water at 90°C flows on the inside of a 2.5-cm-ID steel tube with 0.8-mm wall thickness at a…

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Q: and 2.5cm in diameter, determine (a) the rate of heat transfer and (b) the outlet temperatures of…

A: To calculate the rate of heat transfer, and outlet temperature of the glycerine and glycolgiven the…

Q: Which type of heat exchangers among parallel, counter, shell and tube and cross flow heat exchangers…

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Q: The heat exchanger efficiency depends   Only on the heat capacity flows ratio. On the heat capacity…

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Q: Figure shows a heat exchanger designed to cool 5250 kg/h of an ethyl alcohol solution (Cp = 3810…

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Q: What are the advantages and disadvantages of micro-channel (tube) heat exchangers? Please include…

A: A heat exchanger is a device that allows heat to be transferred between two or more fluids. Both…

Q: Calculate the tube-side heat transfer coefficients.  Type : 1 - 2 exchanger : O.D = 0.01905m I.D…

A: Given: The outside diameter, OD = 0.01905 m The inner diameter, ID = 0.01483 m The length, L = 1…

Q: Concentric Tube Heat Exchanger List at least two assumptions that are being made in the heat…

A: TO DETERMINE :- (a) two assumptions, (b) reasons for the assumptions taken.

Q: In a double pipe heat exchanger if the wall resistance can be neglected and the convective heat…

A: Given:The convective heat transfer coefficient based on the inner diameter of the inner pipe, The…

Q: A counterflow, concentric tube heat exchanger is designed to heat water from 22 to 80 deg Cusing hot…

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Q: What are the classifications of the heat exchanger, what are it applications, and what are the…

A: Complete information about heat excahanger given below: Heat exchanger defined as a device which…

Q: 2. Explain and analyze effectiveness and heat transfer coefficients for parallel and counter-flow…

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Q: Steam condensing at 120°C (h = 2203 kJ/kg) on the shell side of (1 shell and 12 thin- walled tubes)…

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Q: Determine the length needed for a simple concentric-tube, parallel flow heat exchanger to transfer…

A: Rate of heat transfer from hot water to cold water, Q=900 WThermal conductivity of copper tube,…

Q: Briefly describe the meaning of the efficiency coefficient for a heat exchanger and the parameters…

A: Heat Exchanger

Q: What are mixed and unmixed flow heat exchangers? Explain with the help of an example

A: Heat exchanger: The heat exchanger is a device used to exchange the heat from one fluid to another…

Q: A crossflow heat exchanger uses oil (Cp =2.1 kJ/kg · oC) in the tube bank with an entering…

A: To Find : The area required for the heat exchanger using LMTD  method. Given : The specific heat of…

Q: A mathematical expression for the overall heat transfer rate of a cross section exchanger in…

A: Formula Of Cross Flow Heat Exchanger Is Used

Q: Derive an expression for the mean temperature difference in cross flow heat exchanger and show the…

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Q: Two engineers are having an argument about the efficiency of a tube-side multipass heat exchanger…

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Q: a shell and tube heat exchanger must be designed to heat 2.5 Kg / s of water from 15 C to 85 C. the…

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Q: How to determine the pressure drop caused by a shell-and-tube heat exchanger? Is there a catalog…

A: In a shell-and-tube heat exchanger, the pressure drop is the reduction in fluid pressure that occurs…

Q: t is desired to heat 230 kg / h of water from 36 to 94 ºC with oil (Cp = 2.1 kJ / kg ºC) that has an…

A: GIVEN DATA HOT FLUID- OIL MASS FLOW RATE m=230kg/h INLET TEMPRATURE Th1=175'C COLD FLUID - WATER…

Q: Explain the meaning and usefulness of the effective diameter (a type of equivalent diameter) for the…

A: Solution:

Heat Exchangers

Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.

Heat Exchanger

The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.