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Heat absorbed

Heat absorbed

Introduction to Chemical Engineering Thermodynamics
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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Please, I want you to help me solve this question in petroleum refining as soon as possible
Q3): A furnace is to be designed for a heat duty of 35 x 10° Btu/hr. If the overall efficiency is 70%. The furnace is fired with (21 lb air / Ib fuel), and an oil fuel of (NHV = 17000 Btu/lb). The tubes are arranged in two rows and are of 5 in OD., 40 ft length and 2x OD. Spacing, heat rate of 24000 Btu/hr of projected area is recommended calculate: 1) Heat absorbed in radiation section. 2) The number of tubes in the radiation section. 3) Heat absorbed in the convection section. Assume Furnace losses =5% Stack losses =11%
Transcribed Image Text:Q3): A furnace is to be designed for a heat duty of 35 x 10° Btu/hr. If the overall efficiency is 70%. The furnace is fired with (21 lb air / Ib fuel), and an oil fuel of (NHV = 17000 Btu/lb). The tubes are arranged in two rows and are of 5 in OD., 40 ft length and 2x OD. Spacing, heat rate of 24000 Btu/hr of projected area is recommended calculate: 1) Heat absorbed in radiation section. 2) The number of tubes in the radiation section. 3) Heat absorbed in the convection section. Assume Furnace losses =5% Stack losses =11%
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