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(b) Given the following fuel composition, dry exhaust gas and refuse analysis. Fuel composition (fraction by mass) C 0.69; O 0.05; H 0.03; N 0.01; H20 0.10; Ash 0.12 Dry exhaust gas analysis (fraction by volume) CO2 0.145; CO 0.021; N2 0.779; O2 0.055 Refuse analysis (fraction by mass) C 0.45; Ash 0.55 On the basis of 1 kg of biofuel combustion process, find: (i) The mass of refuse, per kg of fuel burnt. [Hint: using an ash balance]. (ii) The mass of dry gaseous products, per kg of fuel burnt. [Hint: consider a carbon balance]. (iii) Show that the nitrogen in fuel is negligible and then estimate the mass of dry air, per kg of fuel burnt. [Hint: consider a nitrogen balance]. With Air: dry-bulb temperature 22.8°C, wet-bulb temperature 15.5°C: The standard compositions for (dry) air are 21% oxygen and 79% nitrogen on a mölar. basis. Take the molecular weight of dry air as 29 g/mol. - You may assume that .the atomic.mass of C, H, O and N are 12, 1, 16 and 14, * respectively.

(b) Given the following fuel composition, dry exhaust gas and refuse analysis. Fuel composition (fraction by mass) C 0.69; O 0.05; H 0.03; N 0.01; H20 0.10; Ash 0.12 Dry exhaust gas analysis (fraction by volume) CO2 0.145; CO 0.021; N2 0.779; O2 0.055 Refuse analysis (fraction by mass) C 0.45; Ash 0.55 On the basis of 1 kg of biofuel combustion process, find: (i) The mass of refuse, per kg of fuel burnt. [Hint: using an ash balance]. (ii) The mass of dry gaseous products, per kg of fuel burnt. [Hint: consider a carbon balance]. (iii) Show that the nitrogen in fuel is negligible and then estimate the mass of dry air, per kg of fuel burnt. [Hint: consider a nitrogen balance]. With Air: dry-bulb temperature 22.8°C, wet-bulb temperature 15.5°C: The standard compositions for (dry) air are 21% oxygen and 79% nitrogen on a mölar. basis. Take the molecular weight of dry air as 29 g/mol. - You may assume that .the atomic.mass of C, H, O and N are 12, 1, 16 and 14, * respectively.

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
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(b) Given the following fuel composition, dry exhaust gas and refuse analysis. Fuel composition (fraction by mass) C 0.69; O 0.05; H 0.03; N 0.01; H20 0.10; Ash 0.12 Dry exhaust gas analysis (fraction by volume) CO2 0.145; CO 0.021; N2 0.779; O2 0.055 Refuse analysis (fraction by mass) C 0.45; Ash 0.55 On the basis of 1 kg of biofuel combustion process, find: (i) The mass of refuse, per kg of fuel burnt. [Hint: using an ash balance]. (ii) The mass of dry gaseous products, per kg of fuel burnt. [Hint: consider a carbon balance]. (iii) Show that the nitrogen in fuel is negligible and then estimate the mass of dry * air, per kg of fuel burnt. [Hint: consider a nitrogen balance]. With Air: dry-bulb temperature 22.8°C, wet-bulb temperature 15.5°C: Thestandard compositions for (dry) air are 21% oxygen and 79% nitrogen on a mölar. basis. Take the molecular weight of dry air as 29 g/mol. You may assume that the atomic.mass of C, H, O andN are 12, 1, 16 and 14, respectively.
Transcribed Image Text:(b) Given the following fuel composition, dry exhaust gas and refuse analysis. Fuel composition (fraction by mass) C 0.69; O 0.05; H 0.03; N 0.01; H20 0.10; Ash 0.12 Dry exhaust gas analysis (fraction by volume) CO2 0.145; CO 0.021; N2 0.779; O2 0.055 Refuse analysis (fraction by mass) C 0.45; Ash 0.55 On the basis of 1 kg of biofuel combustion process, find: (i) The mass of refuse, per kg of fuel burnt. [Hint: using an ash balance]. (ii) The mass of dry gaseous products, per kg of fuel burnt. [Hint: consider a carbon balance]. (iii) Show that the nitrogen in fuel is negligible and then estimate the mass of dry * air, per kg of fuel burnt. [Hint: consider a nitrogen balance]. With Air: dry-bulb temperature 22.8°C, wet-bulb temperature 15.5°C: Thestandard compositions for (dry) air are 21% oxygen and 79% nitrogen on a mölar. basis. Take the molecular weight of dry air as 29 g/mol. You may assume that the atomic.mass of C, H, O andN are 12, 1, 16 and 14, respectively.
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