One kmol of benzene gas (C6H6) enters a combustion chamber designed to operate at steady state where it is mixed and burned with air. C,H, +a (0, +3.76N,)→ BCO, + yH,0 + 8N, Determine the following: 54. the balanced reaction equation for the theoretical amount of air, if the combustion products include CO2, H20 and N2, only. 55. the balanced reaction equation for 30 percent excess air, if all the hydrogen in the fuel burns to H20, but only 92 percent of the carbon burns to CO2, while the remaining 8 percent burns to CO. There is also some free O2 in the product gases. 56. the air-fuel ratio on a molar basis, in kmol air / kmol fuel (for 30 percent excess air); 57. the air-fuel ratio on a mass basis, in kg air / kg fuel (for 30 percent excess air); 58. the mass flow rate of the air entering the chamber, in kg air / min, if the fuel enters the chamber at a rate of 0.05 kg fuel / min (for 30 percent excess air); 59. the dew point temperature of the combustion products, in °C, when cooled at 1 atm (for 30 percent excess air); 60. Would the dew point temperature of the combustion products when cooled at 1 atm be higher, lower or the same for 100% theoretical air (when comparing your answer from question 59)? Explain your reasoning.
One kmol of benzene gas (C6H6) enters a combustion chamber designed to operate at steady state where it is mixed and burned with air. C,H, +a (0, +3.76N,)→ BCO, + yH,0 + 8N, Determine the following: 54. the balanced reaction equation for the theoretical amount of air, if the combustion products include CO2, H20 and N2, only. 55. the balanced reaction equation for 30 percent excess air, if all the hydrogen in the fuel burns to H20, but only 92 percent of the carbon burns to CO2, while the remaining 8 percent burns to CO. There is also some free O2 in the product gases. 56. the air-fuel ratio on a molar basis, in kmol air / kmol fuel (for 30 percent excess air); 57. the air-fuel ratio on a mass basis, in kg air / kg fuel (for 30 percent excess air); 58. the mass flow rate of the air entering the chamber, in kg air / min, if the fuel enters the chamber at a rate of 0.05 kg fuel / min (for 30 percent excess air); 59. the dew point temperature of the combustion products, in °C, when cooled at 1 atm (for 30 percent excess air); 60. Would the dew point temperature of the combustion products when cooled at 1 atm be higher, lower or the same for 100% theoretical air (when comparing your answer from question 59)? Explain your reasoning.
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
Related questions
Question
Transcribed Image Text:One kmol of benzene gas (C6H6) enters a combustion chamber designed to operate at steady state
where it is mixed and burned with air.
C,Hạ + a (O, +3.76N,)→ BCO, + yH,O+8N,
Determine the following:
54. the balanced reaction equation for the theoretical amount of air, if the combustion products
include CO2, H20 and N2, only.
55. the balanced reaction equation for 30 percent excess air, if all the hydrogen in the fuel burns to
H20, but only 92 percent of the carbon burns to CO2, while the remaining 8 percent burns to CO.
There is also some free Oz in the product gases.
56. the air-fuel ratio on a molar basis, in kmol air / kmol fuel (for 30 percent excess air);
57. the air-fuel ratio on a mass basis, in kg air / kg fuel (for 30 percent excess air);
58. the mass flow rate of the air entering the chamber, in kg air / min, if the fuel enters the chamber at
a rate of 0.05 kg fuel / min (for 30 percent excess air);
59. the dew point temperature of the combustion products, in °C, when cooled at 1 atm
(for 30 percent excess air);
60. Would the dew point temperature of the combustion products when cooled at 1 atm be higher,
lower or the same for 100% theoretical air (when comparing your answer from question 59)?
Explain your reasoning.
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