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Solved: Consider a batch process in which 200 L of a

Introduction to Heat Transfer | 6th Edition | ISBN: 9780470501962 | Authors: Theodore L. Bergman ISBN: 9780470501962 111

Solution for problem 9.73 Chapter 9

Introduction to Heat Transfer | 6th Edition

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Introduction to Heat Transfer | 6th Edition | ISBN: 9780470501962 | Authors: Theodore L. Bergman

Introduction to Heat Transfer | 6th Edition

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Problem 9.73

Consider a batch process in which 200 L of a pharmaceutical are heated from 25C to by saturated steam condensing at 2.455 bars as it flows through a coiled tube of 15-mm diameter and 15-m length. At any time during the process, the liquid may be approximated as an infinite, quiescent medium of uniform temperature and may be assumed to have constant properties of 1100 kg/m3 , c 2000 J/kg K, k 0.25 W/m K, 4.0 106 m2 /s, Pr 10, and 0.002 K1 . The thermal resistances of the condensing steam and tube wall may be neglected. (a) What is the initial rate of heat transfer to the pharmaceutical? (b) Neglecting heat transfer between the tank and its surroundings, how long does it take to heat the pharmaceutical to 70C? Plot the corresponding variation with time of the fluid temperature and the convection coefficient at the outer surface of the tube. How much steam is condensed during the heating process?

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ENED 1020: Engineering Foundations Final Hands­on Experiment Fuel Cell Car Lab Report Intro Electric cars have begun to storm the market in the past few years due to their being an effective and cleaner alternative to the non­renewable resources we depend on. Fuel cell cars have also been considered an alternative, but have received less attention because of the lack of refueling stations for these novel vehicles. In this experiment, we look to explore the comparative efficiencies of electric and hydrogen powered cars. We will do this by using electricity to power a car to travel a distance of 15 feet, and then use electricity to produce hydrogen to power a car for 15 feet, and compare the amoun

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Chapter 9, Problem 9.73 is Solved
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Textbook: Introduction to Heat Transfer
Edition: 6
Author: Theodore L. Bergman
ISBN: 9780470501962

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Solved: Consider a batch process in which 200 L of a