Hot oil at 150°C is used to preheat a cold fluid at 30°C in a I:I shell and tube heat exchanger. The exit temperature of the hot oil is 110°C. Heat capacities (product of mass flow rate and specific heat capacity) of both the streams are equal. The heat duly is 2 kW. Under counter-current flow conditions, the overall heat transfer resistance (I/UA) is A. 0.4°C/W B. 0.04°C/W C. 0.36°C/W D. 0.036°C/W
Hot oil at 150°C is used to preheat a cold fluid at 30°C in a I:I shell and tube heat exchanger. The exit temperature of the hot oil is 110°C. Heat capacities (product of mass flow rate and specific heat capacity) of both the streams are equal. The heat duly is 2 kW. Under counter-current flow conditions, the overall heat transfer resistance (I/UA) is A. 0.4°C/W B. 0.04°C/W C. 0.36°C/W D. 0.036°C/W
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Hot oil at 150°C is used to preheat a cold fluid at 30°C in a I:I shell and tube heat exchanger. The exit temperature of the hot oil is 110°C. Heat capacities (product of mass flow rate and specific heat capacity) of both the streams are equal. The heat duly is 2 kW.
Under counter-current flow conditions, the overall heat transfer resistance (I/UA) is
A. 0.4°C/W
B. 0.04°C/W
C. 0.36°C/W
D. 0.036°C/W
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