numerator gives the actual heat2-3. Heat Exchange Between Oil and Water. Water is flowing at the rate of 1.13 kg/s ina 1-2 shell-and-tube heat exchanger, and is heated from 45°C to 85°C by an oil hav-ing a heat capacity of 1.95 kJ/kg K. The oil enters at 120°C and leaves at 85°C. Cal-culate the area of the exchanger if the overall heat-transfer coefficient is 300 W/m2. K

Consider the heat exchanger to be counter flow type and draw the temperature profiles for the same.

Answered: numerator gives the actual heat 2-3.…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Water from a natural river source at 22°C and a flow rate of 25,000 kg/s is used as the heat sink for a condenser unit at a large manufacturing company. The condenser consist of 20,000 tubes and is used to condense steam to liquid at 50°C. construction and 20mm nominal diameter. The condenser is a one The tubes are of thin wall shell, two-tube-passes heat exchanger. convective heat transfer coefficient of 11,500 W/m².K on the tube outer surface and the water flowing in the tubes is required to remove heat at a rate of 2 x 10° W. Environmental laws require that the effluent from the condensing unit to the river source should be less than 35°C. Using both the e-NTU and LMTD methods, calculate the outlet temperature of the cooling water and the required tube length per pass. The specification is a Use T =27°C; and for flow through the tubes use, Nu, = 0.023 Re Pr°4
Hello Sir,Good Evening. I have a question in my homework related Heat Transfer lesson. The following below is my question. Please Advice. Thank You "Explain the equation used to calculate the heat flux of a counter flow type heat exchanger with a fouling factor using the LMTD concept. Write down the equations involved"
27. Air is being heated with steam in a heat exchanger as shown in following fiqure. Saturated water opy yer vapor enters this unit at 35°C at a rate enters the unit at 20°C, and leaves at 30°C at same twarie, process. 10,000 kg/h and leaves as saturated liquid at Marut, iwarr Air generation associated with Determine the rate of MarutPrewari Air 20°C 32°C Steam 35°C 10,000 kg/h Marut Tiwari 30°C Marut Tiwari
20,000 lb/hr of air is to be cooled from 150°f to 100°f by water flowing in a shell-and-tube heat exchanger. cooling water is available at 70°f and should leave the exchanger at 95°f. available to do this cooling assignment is a one-shell pass, two-tube pass exchanged consisting of fifty 1-in OD 18 BWG copper tubes, each 10 ft long. the tubes are arranged inside a 10-in shell on a staggered 1-1/4- inch triangular pitch with baffles spaced every 6 in. is this exchanger satisfactory?
A 95kg/hr hot fluid is used to heat a cold fluid from 10oC to 70oC using a double pipe heat exchanger (DPHE). The hot fluid enters at 205°C and leaves the DPHE at 108°C. The Cp of hot fluid is 1.10 kcal/kg°C and the Cp of cold fluid 0.95 kcal/kg°C. a) Calculate the LMTD if the the flow is cocurrent in oC b) Calculate the LMTD if the the flow is countercurrent in oC
he shell fluid,ethylene glycol, enters at 120oC and leaves at 60oCwitha flow rate of 4000 kg/h. Water flows in the tubes, entering at 35oCand leaving at85oC. The overall heat-transfer coefficient for this arrangement is 900W/m2·oC.The exchanger is a shell tube with two shell passes and two tube passes.Calculate the following: a) The water exit temperature if flow rate of glycol to the exchanger is reduced in half with the entrance temperatures of both fluids remaining the same and by how much is the heat-transfer rate reduced?; b) The percentage reduction of heat transfer if water-flow rate is reduced by 25percent,while the gas flowrate is maintained constant along with the fluid inlet temperatures. Assume that the overall heat-transfer coefficient remains the same; andc) The flow rate of water required andthe area of the heat exchanger;
FLUIO HEATER HEATS 250 kg PER SECOND OF FLUID FROM 35°C TO 100't IN A PARALLEL FLOW HEAT EXCHANGER.THE SPECIFIC HEAT OF THIS FLUID 1s 2.5 kg °C ANEXHAUST GAS WAS USED.FOR HEATING HAVING A SPECIFIC HEAT OF 1 gC, A MASS FLOW RATE OF 625 ks AND AN INITIAL TEMPERATURE OF 200°C THE OVERALL HEAT TRANSFER COEFTICIENT IS 7.5 kw /m2. C.ETERMINE THE FOLLOWING: ) FINAL TEMPERATURE IN °C 2.) AMTD 3) SURFAC E HEAT TRANSFER 4.) HEATING SURFACE IN m2 OTE GAFLUID = QRGAS = HEAT TRANSFERRED TO THE SURFACE SE HEAT CALCULATION FRUM THER Mo 1 AND AMTD FOR THE SURFACE HEAT TRANSFER.
A counter flow single body single pass heat exchanger is used to cool the lubricating oil of an industrial gas turbine. The flow rate of the cooling water flowing in the pipe is 0.2 kg/s and the pipe diameter is 25mm. The flow rate of the oil flowing between the pipe and the body is 0.1 kg/s and the body diameter is 45 mm. Oil enters at 100°C, while water enters at 30°C. What should be the length of the pipe so that the outlet temperature of the oil is 60 °C ?
Why the use of shell and tube heat exchanger is more compared to other heat exchangers?
i need the answer quickly

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