When cold starting of CI engines becomes difficult?

Q: Why do we need very high pressure for fuel injection in a diesel engine?

A: The fuel is injected into the cylinder by the use of heavy pressure difference and the opening of…

Q: eseI Engine? 3. What is the stroke and explain the strokes of a four-cycle engine?

A:

Q: 2. There are supplied 317 KJ/cycle to an ideal Diesel engine operating on 227 g air; p= 97.91 KPa, t…

A:

Q: Why thermal efficiency of diesel engine is more than petrol engine?

A: A diesel engine has a compression ratio of 12-24 The petrol engine has compression ration 4-10 Due…

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: 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: 4. The efficiency of an Otto cycle is 50% and yis 1.5. What is the compression ratio? [Ans. 4]

A: Given:Efficiency of otto cycle,ηo=50%=0.5Adiabatic index of working fluid in cycle,γ=1.5To find…

Q: (17 blanks) Calculate the efficiency of the Carnot Engine for ideal gas. Consider the figure below…

A: Given DataCarnot cyclevfor Ideal gasad>ab>bc>cd

Q: What are the advantages and disadvantages of an over-square engine?

A: Internal Combustion Engine: In the internal combustion engine, also known as IC Engine, combustion…

Q: 2. An ideal combustion cycle operates on 500g of air. At the beginning of the compression, the air…

A: Given data: r=10rc=1.65α=1.5 Need to determine the efficiency.

Q: Bas engines WiLh plication ?.-

A:

Q: At the beginning of compression and ideal dual combustion cycle using air has a  pressure of 15…

A: Given data: T1 = 75°C = 348 KP1 = 15 Psia = 103421.359 Pav1 = 13.2 ft3/lb = 0.824 m3/kg Constant…

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

A:

Q: 1. Why ICE is always open cycle while the ECE can be open or closed cycle? 2. Compare between the SI…

A:

Q: 04: A) Prove that the ratio of work to the petrol engine works according to the Otto cycle equal: rw…

A:

Q: An air standard dual-combustion cycie has a mean effectne pressure t0 bar T minimum pressare and…

A: A) Question No 1 Given Data: Mean Effective Pressure P1​=1bar Compression Ratio V1​/V2​=16 Maximum…

Q: same compression ratio which is more efficient Otto or dies

A: To explain : For same compression ratio which is more efficient Otto or diesel engine .

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: Which of the following is the T-S diagram of the engine using a true Brayton cycle?

A: The ideal Brayton cycle and actual Brayton cycle are different from each other. The ideal cycles of…

Q: Temperature and pressure of air at the start of isentropic compression in a Dual Combustion Engine…

A:

Q: What is the effect of compression ratio change on the performance of I.C. engines What is the action…

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Q: A compression ratio of 14 and cut off ratio of 2.3 is used for an ideal air standard Diesel cycle…

A: Given dataCompression Ratio = CR = 14Cut-off ratio = 2.3Minimum Pressure = 98 kPaa

Q: (a) Describe with the aid of diagrams the operational sequence of four stroke spark ignition engines…

A: We are authorized to answer three subparts at a time since you have not mentioned which part you are…

Q: n Automotive Engineering company has a task to setup a odel. The engine has four-cylinder,…

A: Four-cylinder, Four-stroke Displacement Volume, Vs = 3 Litres =3 × 10-3 m3 Compression Ratio, r = 17…

Q: c) Sketch a P-V diagram overlaying the approximated actual Diesel cycle and idealised Diesel cycle…

A: C.

Q: Explain the mechanical efficiency for an ideal diesel cycle of two and four stroke engines

A: The mechanical efficiency of two stroke diesel engine is higher than that of four stroke diesel…

Q: A four-stroke cycle engine may or may not have a pressure boost (supercharger, tur- bocharger) in…

A:

Q: What is the difference between "miller" and " otto" cycles?

A: Solution:   Three major differences between Otto cycle and Miller Cycle:

Q: 1. (Otto Cycle) An Otto cycle operates on0.1 Įb/s of air from 13 psia and 130 °F at the beginning of…

A:

Q: Q3/ Answer the following question A 3.3 liters and 6 cylinders S.I. engine operates with a…

A: Given:r=7.5P1=1 bar =100 KPaT1=25°C =298 KQa=1250 KJ/Kg

Q: Explain the processes of Rankine cycle with a neat TS diagram.

A: Given Data  Explain the processes of Rankine cycle with a neat TS diagram.

Q: If the volumes at the end of compression and at the beginning of expansion in an ideal Diesel engine…

A:

Q: Vhy do most very large engines operate on a two-stroke cycle?

A: Most Very large engines operates on  a Two stroke cycle: because  Explaination: Two stroke has…

Q: Which are the reference fuels for knock rating of 5.1. engines?

A: Reference fuels for knock rating of S.I engines,

Q: Show all sets of equations belonging to two-time ideal diesel cycle and two-time ideal mixed cycle…

A: As this is a multiple question , so i would be answering the first question as per the guidelines…

Q: Give the design formulae of a dry liner in an internal combustion engine.?

A: To write: The design formula of a dry liner in an internal combustion engine. Concept used: Dry…

Q: An air standard Diesel engine operates as follows, at the end of expansion, the pressure is 360 kPa…

A:

Q: Compare S.I and C.I engines with respect to compression ratio

A: Given :-  Compare S.I and C.I engines with respect to compression ratio

Q: Describe how actual internal combustion engine cycle(i.e. Otto and Diesel)thermal efficiency differ…

A: In several ways, the real IC cycle for otto and diesel different from the air standard cycles.…

Q: An engine working on air standard Otto cycle is supplied with air at 0.1 MPa and 35°C. The…

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Q: What are the advantages and disadvantages of an under-square engine?

A: the benefit of over square motors is that they can fire up higher and produce a superior force range…

Q: A compression ratio of 14 and cut off ratio of 2.3 is used for an ideal air standard Diesel cycle…

A:

Q: a) Explain the Working of a Turbojet engine with the help of block diagram and T-S diagram. Define…

A: The turbojet engine is the most commonly used air-breathing engine compared to the Pulse-jet and…

Q: An alr-standard diesel cycie engine operates as follows: Inlet temperature, temperature after…

A: Given T1=30+273=303 kT2=700+273=973 kw=590.1 kJ/kgQ1=925 kJ/kgQ=cp(T3-T2)925=1.0075(T3-973)B)…

Q: 2. A four-cycle, 5.866 L engine consumes 19 kg/hr of fuel and 413 kg/hr of air while running under…

A: given data; ⇒for four cycle no of cylinder k=4;⇒swept volume…

Q: Draw a typical indicator diagram of pressure versus volume (p-v) to illustrate the cycle of a four…

A: Indicator diagrams are used in assessing the engines performance and help us in understanding its…

Q: Q1: Two spark ignition petrol engines having the same swept volume and compression ratio are running…

A:

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.