Q4/4. in the spark ignition engines the air- * ?fuel mixture is burned by self ignited. O compression the air-fuel mixture above its self ignition temperature. compression the air-fuel mixture below its self ignition temperature. Q4/5. the heat engine can be classify to SI ?engine and Cl engine depending on All of the above. how the air-fuel mixture is initiated. how the heat is supplied to the working fluid. the type of the burned fuel. O

Q: CyH8 is burned in an engine with a rich fuel-air Vartio.Dry amaly sis of the exhoust Jives the…

A:

Q: If the air-to-fuel ratio for propane is 17.16, the combustion in this process will be called O rich…

A: The stoichiometric air-fuel ratio for propane is 15.67:1.

Q: Fill in the Blanks or Say 'Yes' or 'No': 1. may be defined as a relatively rapid chemical…

A:

Q: Explain why constant-volume combustion gives a higher indicated fuel conversion efficiency than…

A: We are assuming a condition that the heat supplied for both the engines are same along with…

Q: • The . assumes that the water vapor in the combustion products condenses, and thus, includes the…

A: Lower heating value (LHV): It is the defined as the amount of heat released during the combustion of…

Q: //Ethane (CnH2n+2 ) is burned with atmospheric air. The analysis of the products on a dry basis is…

A: Introduction: Thermal engines generate energy through combustion by burning fuel and oxygen. Certain…

Q: Natural gas is burned to produce hot water to heat a clothing store. Assuming that the natural gas…

A:

Q: What causes high CO emissions?   lean air/fuel mixtures   rich air/fuel mixtures   high…

A: Causes of high CO emissions are

Q: The fuel supplied to a petrol engine is assumed to have the composition C10H22. If 42% excess air is…

A:

Q: Determine the actual air-fuel ratio of Butane (C4H10) with 200% stoichiometric air (100% excess…

A: Air fuel ratio = 3.25

Q: If Pentane (C 5 H 12 ) is burned with an air to fuel ratio by weight of 20, calculate: a) percent…

A: As given that air to fuel ratio = 20  means  ⇒mass of airmass of fuel= 20 Consider 1 mol of pentane…

Q: 15.)Find the mole fraction in percent of H,0 at the products of combustion in real combustion of 1…

A: moles of CH4=1 amount of air exceed=30% mole fraction of H2O

Q: 4) If ethane is used as the fuel for the Brayton cycle, conduct an analysis of its complete…

A:

Q: 2. Determine the stoichiometric air-fuel ratio of 1 kg butane, assume complete combustion.

A:

Q: Q 1 Determine the air-fuel ratio for the complete combustion of n-Butane (C4H10) with a) theoretical…

A: Answere100mol C4H10complete combustion  of 100% of n butane C4H10+132O2→4CO2+5H2OAccording to…

Q: Hydrogen (H2) with a flow rate of 0.02 kg/s into a continuous flow combustion chamber, standard…

A:

Q: Q1//Ethane (CnH2n+2 ) is burned with atmospheric air. The analysis of the products on a dry basis is…

A:

Q: in an ideal combustion cycle, if the cut off ration is 1.5 and the volume at the beginning of the…

A:

Q: CO2, H20, 02, and N2, determine the air-fuel ratio for this combustion process.

A:

Q: Balance stoichiometric combustion reaction C7H16 + Air Find the air-fuel ratio A/F.

A:

Q: How do you account for the existence of both complete and incomplete combustion? Explain.

A: Combustion:  It is a reactions between the fuel and oxygen at high temperatures and heat (energy) is…

Q: The Compression stroke is where the piston moves from BDC to TDC to compress the fuel and air…

A: Internal combustion engine: Heat engines are classified based on how the fuel is burned; if the…

Q: Dodecane is burned at constant pressure with 120% excess air. What is the actual air fuel ratio for…

A:

Q: Propane is burned completely with 25% excess air. Compute the number of moles of  nitrogen in the…

A:

Q: A flexible - fuel vehicde operates with a stoichiomderie fuel mixture of one -thrid isooctane ,…

A: Given: In the stoichiometric fuel mixture of one-third isooctane, one-third methanol, and one third…

Q: Differentiate complete combustion from incomplete combustion.

A: Distinguishing, complete combustion from incomplete combustion.

Q: In a bus engine, diesel fuel is burned with dry air. Both the diesel fuel and the dry air enter the…

A: Diesel combustion is based on its unique method of releasing the chemical energy held in the fuel.…

Q: 2. One kg of carbon for theoretically complete combustion requires kg of air. 8.05 C-23 d. 12 3. E…

A: Handwriting.jpg

Q: The organic fuels methane and ethane has a volumetric analysis of 62% and 38%, respectively. If a…

A: Given: Based on volumetric analysis: %CH4 = 62% %C2H6 = 38% Excess air = 25%

Q: There are general compression-ignit combustion initia provide sketches t

A: SI Engines are spark-ignition Engines where from the name itself we can understand it uses a spark…

Q: Producer gas from bituminous coal contains following molar analysis. CH4 = 3 %, H2 = 14.0%, N2 =…

A: GivenCH4=3%H2=14.0%N2=50.9%O2=0.6%CO=27.0%CO2=4.5%

Q: When combusting octane (C8H18) with air, what is the main reactant within the air mixture? O Methane…

A: What is the main reactant in combustion of octane with air.

Q: A boiler firing 30 gal/hr No. 6 oil (Heavy oil) requires 18.5 % excess air for complete combustion.…

A: Given data as per question Bolier firring rate = 30 gal/hr type of oil =No. 6 excess air required…

Q: An advantage of using natural gas, rather than oil, as a fuel is that natural gas is?

A:

Q: Show the complete combustion equation and calculate the minimum amount of air (in kg) required for…

A:

Q: Determine the equivalence ratio for the complete combustion of n-Butane (C4H10) with 50% excess air.

A: To find :- Equivalence ratio

Q: 1. A fuel is represented with C, Hg is burned with 42% excess air. If mass of fuel is 0.18 kg, find…

A:

Q: complete combustion of an ideal gas, which of the following yields a higher exit temperature in the…

A: Ans: option  c is correct.

Q: 1.hydrocarbon fuel of CH is burned in steady flow combustion chamber with 85% theoretical air,…

A:

Q: Problem Statement: 1 kg/s Propane (C3H8)  is burned with 35 kg/s air (O2 + 3.76N2). As 80% of Carbon…

A: The balanced reaction of complete combustion of any hydrocarbon is given as, Here, the values of…

Q: The supply of excess air in an engine working on diesel fuel will ensure Select one: O a. No effect…

A:

Q: Dodecane is burned at constant pressure with 120% excess air. What is the actual air fuel ratio for…

A: To find : determine the actual fuel ratio. Given :  dodecane is burned at constant pressure 2C12H26…

Q: Q4/4. in the spark ignition engines the air-fuel ?mixture is burned by

A: Ignition temperature is an important property of any fuel because the combustion reaction of the…

Q: 7. Describe the difference(s), if any, between pre-mixed and diffusion type combustion. Please…

A: Premixed combustion: fuel and oxidizer are homogeneously blended before response happens. Laminar…

Q: A boiler firing 30 gal/hr No. 6 oil (Heavy oil) requires 18.5 % excess air for complete combustion.…

A: Given data  A boiler firing 30 gal/hr No. 6 oil (Heavy oil) requires 18.5 % excess air for complete…

Q: Ethane, C2H6, burns to completion with 21% excess air. Determine (a) the chemical reaction…

A:

Q: What is the pressure ratio in an ideal dual combustion if the pressures at the beginning and end of…

A: GivenP2=2910.57KpaP3=4400.43Kpa

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.