solve the problem Problem 3Crude oil, cp=1.92 kJ/(kg.K), flows at a rate of 0.33 kg/s through the inner pipe of a tube-in-tubeheat exchanger and it is heated from 28 °C to 97 °C. Another hydrocarbon, cp=2.54 kJ/(kg.K),enters at 246 °C. The overall coefficient of heat transfer is found to be 4321 W/(m2.K). Determinefor a minimum temperature difference of 20 °C between the hot and cold fluids: a) the LMTDfor parallel flow and for counter-flow heat exchanger; b) the surface area for both heatexchanger configurations; c) mass flow rate of hot fluid for both heat exchanger configurations.

Step 1: To solve the given problem for a tube-in-tube heat exchanger with crude oil and another…

Answered: Problem 3 Crude oil, cp=1.92 kJ/(kg.K),…

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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Crude oil, Cp = 1.9 kJ/(kg.K), flows at a rate of 0.32 kg/s through the inner pipe of a tube-in-tube heat exchanger and it is heated from 29 °C to 96 °C. Another hydrocarbon, Cp = 2.50 kJ/(kg. K), enters at 240 °C. The overall coefficient of heat transfer is found to be 4200 W/(m?K). Determine for a minimum temperature difference of 20 °C between the hot and cold Nuids; a) the LMTD for parallel flow and for counterflow heat exchamger; b) the surface area for both heat exchanger configurations; c) mass Now rate of hot Nuid for both heat exchanger configurations.
A 1-2 shell and tube heat exchanger is used to heat glycerin (C3H8O3, b.p.= 290 °C, cp= 3.43 kJ/kg °C) from 20 °C to 50 °C when it flows through the very thin tubes (radius =2 cm). Water (heat capacity = 4.174 kJ/kg° ° C) enters the shell at 80 °C and leaves at 40 °C. The total length of the tube is 60 m. The convection heat transfer coefficients between the tube and fluids are 25 W/m2 °C on the shell side and 160 W/m2 °C on the tube side. Determine the heat transfer rate in the heat exchanger method.
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