How do the volumetricefficiency and air-fuel ratiochange as the engine'srotational speed changes?With a brief explanation of thechange process with anexplanation of the reasons

Volumetric Efficiency : Volumetric efficiency is defined as the efficiency of an engine with which…

Answered: How do the volumetric efficiency and…

Engineering

Mechanical Engineering

How do the volumetric efficiency and air-fuel ratio change as the engine's rotational speed changes?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: Which of the following statements is/are TRUE? I. Diesel engines have higher thermal efficiencies…

Q: An ideal Diesel cycle is very close to an ideal Otto cycle. What is the main difference between the…

A: Otto cycle is used in petrol engine / Spark-ignition engine whereas Diesel cycle is used in…

Q: 2. A four-cylinder 2.5 L spark-ignited engine is mounted on a dyno and operated at a speed of W=3000…

Q: Because the diesel engine has a lower compression ratio the thermal efficiency will be higher…

A: given: A comparison between the actual gasoline engine and actual diesel engine is to be made.…

Q: discuss the Compression-ignition engine its parts and functions

A: Introduction: Combustion, commonly known as the burning of fuel particles, is the chemical process…

Q: These are Otto cycle characteristics: * The working fuel is used as Petrol Fuel injector is used for…

A: The automobile engines basically work on two type of cycle: Otto cycle Diesel cycle The otto cycle…

Q: If a turbo engine has an efficiency of 1. What’s does that mean? Does that mean it very efficient?

A: In this context, efficiency refers to the ability of the engine to convert the energy contained in…

Q: To see the effect of maximum temperature on engine efficiency in the ideal Brayton cycle, a variable…

A: The P-v diagram of Brayton cycle is Maximum temperature in the cycle occurs at state 3 i.e., T3

Q: Why expansion stroke in a four-stroke engine is called working stroke?

A: A 4-stroke engine is a very common variation of an internal combustion engine. Most modern internal…

Q: 3. A Diesel engine operates on the air-standard cycle and has a displacement of 3.5 liters. The…

A: Given data: Displacement (D) = 3.5 liters = 0.0035 m3 Compression ratio (r) = 19 Cutoff ratio (rc) =…

Q: In your own words, differentiate diesel engine from gasoline engine.

A: Both gasoline and petrol engines are internal combustion engines used very widely for road…

Q: Brake power output of the engine ?

A: Given; The indicated power developed by an engine with compressionratio,r=8It is calculated using an…

Q: 5- What happens when petrol is used in diesel engine? Which engine is more efficient?

A: Given :- What happens when petrol is used in diesel engine? .

Q: Power (KW) 89 Torque Nm @ rpm 170 @ 5500 Bore (mm) (6.80x10^1) Stroke (mm) (7.2000x10^1) Compression…

Q: Two strokes Cl engine develops a break power of 368 kW while its frictional power is 73.6 kW. Its…

A: As per given question Two strokes Cl engine develops a break power of 368 kW while its frictional…

Q: What are the advantages and disadvantages of diesel and gasoline engine as a source of power?

A: Diesel Engine:- It is an engine in which heat of compressed air is used to burn the fuel. Diesel is…

Q: In a Diesel engineRequired to answer. Single choice. OPTIONS: 1.Only spark plug is used 2.Spark…

A: In a Diesel engine Answer: 3) None

Q: 1- In hybrid electric vehicle, the thermal engine operates at constant or variable speed. Justify.…

A: Given Hybrid vehicle Electronic control To find Thermal engine operation in hybrid vehicle…

Q: Discuss the difference between gasoline and diesel engines. Explain how octane rating affects…

A: To find: Difference between gasoline and diesel engines. Octane rating significance in gasoline…

Q: Expain How to make an engine that does achieve the maximum possible efficiency ?

A: given: Explain How to make an engine that does achieve the maximum possible efficiency ?

Q: Which of the following equations describes the chocked nozzle thrust in a gas turbine engine? O…

A: Given: The type of flow in nozzle = choked

Q: where is the injector located in a diesel engine with indirect injection and where is the combustion…

A: An injector is a device that delivers fuel into an internal combustion engine. In a diesel engine…

Q: ‏What are the main differences between Otto and Diesel Cycles?

Q: An HCCI engine needs to compress a fuel-air mixture to 1300 K at top dead center for proper auto-…

Q: The friction mean effective pressure: Select one: a. Decreases when the engine rotational speed…

A: In IC engine, there are many types of losses, like mechanical rubbing losses, pumping losses and…

Q: explain? 2- Explain the differences and similarities between the engine temperature sensitivity and…

A: In engine, the burning of fuel results in transformation of chemical energy into thermal energy. In…

Q: Explain the term delay period as associated with CI engines and its factors

A: Delay Period: The ignition delay in a CI engine is defined as the time or crank angle interval…

Q: In a 4 Stroke petrol Engine, during a Compression Stroke Select one: O a. Inlet valve is open and…

A: A four-stroke petrol engine is a type of internal combustion engine in which the engine cycles…

Q: 12. What will be loss in the ideal efficiency of a Diesel engine with compression ratio 14 if the…

A: Diesel Cycle Efficiency

Q: The thermal efficiency of a two stroke cycle engine is_ La four stroke cycle engine O a. Less than O…

A: Two Stroke Engine

Q: 3. How are 4-cylinder and V6 engines different? 4. What's The Difference Between a Turbocharger and…

A: Difference between 4cylinder and V6 engines Four cylinder V6 Engines Engines cylinders are…

Q: What is normal air flow rate? How is air flow pressure measured? 4- Which engine produces the most…

A: (2) Normal air flow rate: Means 1 atmosphere or 101.3KPa Base pressure Base Temperature…

Q: 5. A Gasoline (otto) engine develops 67 kw brake power and operates on 0.052 kg/s of air (R = 0.287…

Q: Question Three: a- Describe in details the methods of turbocharging with the arrangement of the…

A: Now we can discussed here, What is the method of turbocharging? A turbocharger is nothing but an…

Q: Identify the correct order of the cycles in the four-stroke engines analyzed in lab, with the first…

Q: Q1 Answer the following: 1. NASA X-43A scramjet aircraft is considered one of the air breathing…

A: 1. The statement" NASA x-43A scramjet is considered one of the air breathing engines" is true. This…

Q: 1. Discuss the Balancing of V-Engine.

A: V engine is a type of radial engine in which line of stroke of two cylinders make a V shape like…

Concept explainers

IC engines

The term "engine" indicates a mechanical device/machine used to convert input energy to a specific mechanical output. The input energy may be in the form of chemical energy, thermal energy, or so on and mechanical output is in the form of mechanical energy (work done). Generally, the engines classify into two groups which are internal combustion type and external combustion type, and further, these two types can be classified into two types that are reciprocating and rotary engines.

Question

How do the volumetric
efficiency and air-fuel ratio
change as the engine's
rotational speed changes?
With a brief explanation of the
change process with an
explanation of the reasons

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

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

Explain the relation between RVP with gasoline in a combustion engine if a car start at cold condition. ii. hot condition.
3
ROUND UP TO 4 DECIMAL PLACES. Draw and label the P-V and T-S diagrams. 2. A diesel generator running on Ideal Air standard Diesel cycle has the following initial conditions; air at 25°C & 1 atm, having an initial volume of 0.5 m3. The compression ratio is 14 and the cut-off occurs at 8% of the stroke. The generator completes 300 cycles per minute. Determine the following: a. Pressure, volume & temperature at each state b. Cut-off ratio c. Heat Added
When cold starting of CI engines becomes difficult?
3. In what way does the atmospheric condition affects the performance of the engine? Give examples.
Discuss the basic operating principles of a diesel and gasoline engine.
3. What is the main factors are considered in Fuel-Air Cycle analysis compared to Air-Standard Cycle analysis?
QUESTION 10 A four-cylinder, 3.6-liter, four-stroke cycles Sl engine operates at 2700 RPM with a volumetric efficiency of 87 %. The fuel used is methyl alcohol. The chemical reaction of methyl alcohol in a Stoichiometric condition is: CH3OH + 1.5(02 + 3.76N2) - CO2 + 2H20 + 1.5(3.76N2) The chemical reaction of methyl alcohol in an equivalence ratio of o = 1.23 is: CH3OH + m(02 + 3.76N2) → NCO2 + pCO + 2H20 + m(3.76N2) During combustion, all hydrogen is converted to water, and all carbon is converted to CO2 and CO. The density of standard air is 2.25 kg/m. The atomic masses are as follows: H=1, C=12, 0-16, and N=14. Calculate the following: m is n is p is Mole fraction of CO in the exhaust is The mass flow rate of air into the engine is gram/s.
In three hundred words, explain how does a diesel engine works.
For same compression ratio and same heat added which is more efficient Otto or diesel engine?
6. What do you understand by the auto-ignition temperature? How it is important for the SI and CI engines?
: (a) Discuss the performance and emission characteristics of a stationary diesel engine. (b) Explain the objectives, merits and demerits of EGR. (c) Explain about M type combustion chamber with a neat sketch.