A shell and tube heat exchanger, with two tube passes and one shell pass, is used to cool the lubricant of an engine in a thermal power plant. The cold fluid is water (Cp = 4180 J/kg. °C) driven from a river that enters the tubes at 22°C. The lubricant (Cp = 2130 J/kg. °C) enters the shell with a temperature of 120°C. We assume that the overall heat transfer coefficient "U" is 450 W/m2 °C. If the lubricant is the minimum fluid, the effectiveness of this exchanger is E=0.7, the NUT = 2, and the heat transfer area A = 8 m2, determine the water output temperature Tc,out Select one: O a. 53.1°C O b. 58.9°C c. 56.3°C d. 60.6°C

A shell and tube heat exchanger, with two tube passes and one shell pass, is used to cool the lubricant of an engine in a thermal power plant. The cold fluid is water (Cp = 4180 J/kg. °C) driven from a river that enters the tubes at 22°C. The lubricant (Cp = 2130 J/kg. °C) enters the shell with a temperature of 120°C. We assume that the overall heat transfer coefficient "U" is 450 W/m2 °C. If the lubricant is the minimum fluid, the effectiveness of this exchanger is E=0.7, the NUT = 2, and the heat transfer area A = 8 m2, determine the water output temperature Tc,out Select one: O a. 53.1°C O b. 58.9°C c. 56.3°C d. 60.6°C

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Wheatstone Bridge Method

A Wheatstone bridge is a circuit used to measure unknown resistance by measuring the ratios of the two branches of the circuit such that each branch has two resistance and out of four resistance one is unknown. The two branches are joined in between with the help of galvanometer which is used to determine the direction of the current. The main advantage of this circuit is that it can provide the most accurate measurement (different from a simple voltage separator).

Question

A shell and tube heat exchanger, with two
tube passes and one shell pass, is used to
cool the lubricant of an engine in a thermal
power plant. The cold fluid is water (Cp =
4180 J/kg. °C) driven from a river that
enters the tubes at 22°C. The lubricant (Cp
= 2130 J/kg. °C) enters the shell with a
temperature of 120°C. We assume that the
overall heat transfer coefficient "U" is 450
W/m2 °C. If the lubricant is the minimum
fluid, the effectiveness of this exchanger is
E=0.7, the NUT = 2, and the heat transfer
area A = 8 m2, determine the water output
temperature Tc,out
Select one:
O a. 53.1°C
O b. 58.9°C
O c. 56.3°C
O d. 60.6°C

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