![EBK THERMODYNAMICS: AN ENGINEERING APPR](https://www.bartleby.com/isbn_cover_images/8220100257056/8220100257056_largeCoverImage.jpg)
EBK THERMODYNAMICS: AN ENGINEERING APPR
8th Edition
ISBN: 8220100257056
Author: CENGEL
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 15.7, Problem 114RP
Consider the combustion of a mixture of an alcohol, CnHmOx, and a hydrocarbon fuel, CwHz, with excess theoretical air and incomplete combustion according to the chemical reaction as follows:
where y1 and y2 are the mole fractions of the fuel mixture, Ath is the theoretical O2 required for this fuel, and B is the excess amount of air in decimal form. If a is the fraction of carbon in the fuel converted to carbon dioxide and b is the remaining fraction converted to carbon monoxide, determine the coefficients Ath, D, E, F, G, and J for a fixed B amount of excess air. Write the coefficients D, E, F, G, and J as functions of y1, y2, n, m, x, w, z, a, b, B, and Ath in the simplest correct forms.
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
Complete Combustion of methane with theoretical air (or 100% air)
methane, C H, is to be burned with 100% air for complete combustion. The products of combustion or flue gas is at 105
kPa and 950 C
Find (a) write the balanced mol equation (b) mass of theoretical air (c) mass of fuel (d) theoretical air-fuel ratio (e)
volumetric analysis and molar analysis of wet flue gas (f) mass and volume of wet flue gas (g) gravimetric analysis of wet
flue gas (h) dew point of wet flue gas (i) volumetric analysis and molar analysis of dry flue gas (j) mass and volume of
dry flue gas (k) gravimetric analysis of dry flue gas
Calculate(A/F)s,(F/A)s and the molecular weights of the reactants and the products of hydrocarbon fuel of composition 84.1 percent by mass C and 15.9 percent by mass H has a molecular weight of 114.15. Determine the number of moles of air required for stoichiometric combustion and the number of moles of products produced per mole of fuel? If the fuel burned with 125% theoretical air in the four cylinder automobile engine. Calculate the equivalence ratio? *
C,Hs is burned in an engine with a fuel-rich air-fuel ratio. Dry analysis of the exhaust gives
the following volume percents: CO, 14.95%, C,H, 0.75%, CO 0%.
H = 0%, O, 0%, with the rest being
N. Higher heating value of this fuel is Quav 46.9 MJ/kg. Write the balanced chemical
equation for one mole of this fuel at these conditions
Calculate:
(a) Air-fuel ratio.
(b) Equivalence ratio.
(c) Lower heating value of fuel. [MJ/kg]
(d) Energy released when one kg of this fuel is burned in the engine with a combustion
efficiency of 98%. [MJ]
Chapter 15 Solutions
EBK THERMODYNAMICS: AN ENGINEERING APPR
Ch. 15.7 - How does the presence of N2 in air affect the...Ch. 15.7 - Prob. 2PCh. 15.7 - Prob. 3PCh. 15.7 - Is the airfuel ratio expressed on a mole basis...Ch. 15.7 - Prob. 5PCh. 15.7 - Prob. 6PCh. 15.7 - Prob. 7PCh. 15.7 - What does 100 percent theoretical air represent?Ch. 15.7 - Consider a fuel that is burned with (a) 130...Ch. 15.7 - Are complete combustion and theoretical combustion...
Ch. 15.7 - What are the causes of incomplete combustion?Ch. 15.7 - Which is more likely to be found in the products...Ch. 15.7 - Methane (CH4) is burned with the stoichiometric...Ch. 15.7 - Prob. 14PCh. 15.7 - n-Butane fuel (C4H10) is burned with the...Ch. 15.7 - Prob. 16PCh. 15.7 - Prob. 17PCh. 15.7 - 15–18 n-Octane (C8H18) is burned with 50 percent...Ch. 15.7 - In a combustion chamber, ethane (C2H6) is burned...Ch. 15.7 - Prob. 20PCh. 15.7 - Prob. 21PCh. 15.7 - 15–22 One kilogram of butane (C4H10) is burned...Ch. 15.7 - 15–23E One lbm of butane (C4H10) is burned with 25...Ch. 15.7 - Prob. 24PCh. 15.7 - A fuel mixture of 60 percent by mass methane (CH4)...Ch. 15.7 - A certain natural gas has the following volumetric...Ch. 15.7 - Prob. 27PCh. 15.7 - A gaseous fuel with a volumetric analysis of 45...Ch. 15.7 - Prob. 30PCh. 15.7 - 15–31 Octane (C8H18) is burned with dry air. The...Ch. 15.7 - Prob. 32PCh. 15.7 - Prob. 33PCh. 15.7 - Prob. 34PCh. 15.7 - Prob. 35PCh. 15.7 - Prob. 36PCh. 15.7 - Prob. 37PCh. 15.7 - Prob. 38PCh. 15.7 - Prob. 39PCh. 15.7 - Prob. 40PCh. 15.7 - Prob. 41PCh. 15.7 - Prob. 42PCh. 15.7 - Prob. 44PCh. 15.7 - Repeat Prob. 1546 for liquid octane (C8H18).Ch. 15.7 - Ethane (C2H6) is burned at atmospheric pressure...Ch. 15.7 - Reconsider Prob. 1550. What minimum pressure of...Ch. 15.7 - Calculate the HHV and LHV of gaseous n-octane fuel...Ch. 15.7 - Prob. 49PCh. 15.7 - Prob. 50PCh. 15.7 - Consider a complete combustion process during...Ch. 15.7 - Prob. 53PCh. 15.7 - Prob. 54PCh. 15.7 - Propane fuel (C3H8) is burned with an airfuel...Ch. 15.7 - 15–56 Hydrogen (H2) is burned completely with the...Ch. 15.7 - Prob. 57PCh. 15.7 - Prob. 58PCh. 15.7 - Octane gas (C8H18) at 25C is burned steadily with...Ch. 15.7 - Prob. 61PCh. 15.7 - Liquid ethyl alcohol [C2H5OH(l)] at 25C is burned...Ch. 15.7 - Prob. 63PCh. 15.7 - Prob. 64PCh. 15.7 - A constant-volume tank contains a mixture of 120 g...Ch. 15.7 - Prob. 67PCh. 15.7 - Prob. 68PCh. 15.7 - Prob. 69PCh. 15.7 - A fuel is completely burned first with the...Ch. 15.7 - Prob. 71PCh. 15.7 - Acetylene gas (C2H2) at 25C is burned during a...Ch. 15.7 - Octane gas (C8H18) at 25C is burned steadily with...Ch. 15.7 - Express the increase of entropy principle for...Ch. 15.7 - Prob. 81PCh. 15.7 - What does the Gibbs function of formation gf of a...Ch. 15.7 - Liquid octane (C8H18) enters a steady-flow...Ch. 15.7 - Benzene gas (C6H6) at 1 atm and 77F is burned...Ch. 15.7 - Prob. 87PCh. 15.7 - Prob. 88PCh. 15.7 - A steady-flow combustion chamber is supplied with...Ch. 15.7 - Prob. 91RPCh. 15.7 - 15–92 A gaseous fuel with 80 percent CH4, 15...Ch. 15.7 - Prob. 93RPCh. 15.7 - Prob. 94RPCh. 15.7 - Prob. 95RPCh. 15.7 - Prob. 96RPCh. 15.7 - Prob. 97RPCh. 15.7 - Prob. 98RPCh. 15.7 - Prob. 99RPCh. 15.7 - Prob. 100RPCh. 15.7 - A 6-m3 rigid tank initially contains a mixture of...Ch. 15.7 - Prob. 102RPCh. 15.7 - Propane gas (C3H8) enters a steady-flow combustion...Ch. 15.7 - Determine the highest possible temperature that...Ch. 15.7 - Prob. 106RPCh. 15.7 - Prob. 107RPCh. 15.7 - A steam boiler heats liquid water at 200C to...Ch. 15.7 - Repeat Prob. 15112 using a coal from Utah that has...Ch. 15.7 - Liquid octane (C8H18) enters a steady-flow...Ch. 15.7 - Prob. 111RPCh. 15.7 - Prob. 112RPCh. 15.7 - Prob. 113RPCh. 15.7 - Consider the combustion of a mixture of an...Ch. 15.7 - A fuel is burned steadily in a combustion chamber....Ch. 15.7 - A fuel is burned with 70 percent theoretical air....Ch. 15.7 - Prob. 123FEPCh. 15.7 - One kmol of methane (CH4) is burned with an...Ch. 15.7 - An equimolar mixture of carbon dioxide and water...Ch. 15.7 - The higher heating value of a hydrocarbon fuel...Ch. 15.7 - Acetylene gas (C2H2) is burned completely during a...Ch. 15.7 - Prob. 129FEPCh. 15.7 - A fuel is burned during a steady-flow combustion...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Write the complete combustion reaction of fuel oil with atmospheric air. The fuel has the following mass composition: C = 85.5%, H = 10.6% and S = 3.9%. Calculate the content of CO₂ and SO₂ in volume, on a dry basis.arrow_forwardPropal alcohol (C3H7OH) is burned with 50 percent excess air. Write the balanced reaction equation for complete combustion and determine the air-to-fuel ratio.arrow_forwardLiquid propane (C 3 H 8 ) enters a combustion chamber at 25 °C at a rate of 0.05 kg/min where it is mixed and burned with theoretical air that enters the combustion chamber at 7 °C. an analysis of combustion gases reveals that all the hydrogen in the fuel burns to H 2 O but only but only 90% of carbon burn to CO 2 with the remaining 10% forming Co if the exit temperature of combustion gases is 1500 K (a) the mass flow rate of air and (b) the rate of heat transfer from the combustion chamberarrow_forward
- An analysis of the dry exhaust gas from an engine burning Benzole shows 15% Carbon Dioxide present by volume. The Benzole contains 90% C and 10% H₂ by mass. Assuming complete combustion, determine the air/fuel ratio used.arrow_forwardThe organic fuels methane and ethane has a volumetric analysis of 62% and 38%, respectively. If a complete combustion happens with 25% excess air, calculate for the theoretical total number of moles of water as a product of combustion.arrow_forwardOne mole of Carbon Dioxide burns completely in the presence of 3 moles of diatomic oxygen in a constant volume enclosure. The original temperature and pressure of the reactants are 25 C and 1 atm. A) If combustion takes place adiabatically calculate final temeprature and pressure of the products. B) If combustion does not take place adiabatically calculate the heat transfer per mole of CO when the products are cooled to a final temperature of 500K.arrow_forward
- A fuel consist of 84% Carbon, 13% Hydrogen, 2% Oxygen, and the remainder incombustible solid matter. Calculate the calorific value and the theoretical mass of air required per kg fuel and the mass analysis of the flue gas of 22kg of air are supplied per kg of fuel burned.arrow_forwardA one mole of Methane is burned at equivalence ratio (0.7), the fuel air mixture at initial temperature 298K. After complete combustion. After complete combustion, determine (a) the mole fraction of production analysis. (b) the adiabatic flame temperature.arrow_forwardMethane is burned with atmospheric air. The analyses of the products are determined by an Orsat analyzer and are as follows: CO2 10%, O2 2.37%, CO 0.53% and N2 87.1%. Determine the combustion equation and calculate (a) the air-fuel ratio on volume and mass basis, (b) the percentage theoretical air, and (c) the percent excess air. [Hint: % theoretical air = (actual A/F ÷ stoichiometric A/F)x100%]arrow_forward
- A certain petrol engine fuel contains 86% C and 14% H2 by mass. If the fuel is burnt with 20% excess air and the combustion is complete, estimate the volumetric composition of the products of combustion including water vapor formed *arrow_forwardThere is a well-insulated open combustion chamber that ethane (C2H6) goes into at 77°F and 1 atm. The theoretical amount of air also enters at 220°F and 1 atm. The combustion is complete. Determine: a) The temperature of the combustion products coming out (°F)arrow_forwardEthane (C2H6) is burned with atmospheric air and the volumetric analysis of the dry products of combustion yields the following: 10% CO2, 1% CO, 3% 02 and 86% N2. Develop the combustion equation and determine (a) the percentage of the excess air (b) the air fuel ratio. (Solve for 100 kmol of dry products).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
![Text book image](https://www.bartleby.com/isbn_cover_images/9780190698614/9780190698614_smallCoverImage.gif)
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
![Text book image](https://www.bartleby.com/isbn_cover_images/9780134319650/9780134319650_smallCoverImage.gif)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
![Text book image](https://www.bartleby.com/isbn_cover_images/9781259822674/9781259822674_smallCoverImage.gif)
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
![Text book image](https://www.bartleby.com/isbn_cover_images/9781118170519/9781118170519_smallCoverImage.gif)
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337093347/9781337093347_smallCoverImage.gif)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781118807330/9781118807330_smallCoverImage.gif)
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Extent of Reaction; Author: LearnChemE;https://www.youtube.com/watch?v=__stMf3OLP4;License: Standard Youtube License