Answered: Sarah mentions that burning the sludge…

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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Question

Sarah mentions that burning the sludge as fuel is effective. To burn this, fuel oil is mixed with it, and the mixture is burned in a furnace with air. Her boss agrees with burning but further data is needed in order to proceed with the plan. Since additional cost is required for the fuel oil, Sarah needs to determine if burning is worth it. The data below shows the analysis for the sludge and the combustion products.

Determine the weight percentage of carbon and hydrogen in the fuel oil to be used in order to produce a combustion products analysis, shown above, that is acceptable in DENR regulations.
To be able to determine the additional cost needed for the fuel oil, how much dry sludge needs to be burned for every pound of fuel oil in the mixture?

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