A diesel engine takes in air at 0.95 bar and 21oC and operates on the dual combustion cycle. Calculate the air standard thermal efficiency if the compression ratio is 19/1 and the maximum cycle pressure is 68 bar. Assume that 40% of the total heat supplied is added at constant volume and the remaining 60% at constant pressure.

Q: ycle work of an air standard otto engine is 1100 kj/kg. Maximum cycle temperature is 3300 deg. C and…

A: Given:Wc=1100 KJ/KgT3=3300°C =3573 KT2=700°C =973 K

Q: QI/ An Otto cycle engine has Pressure at the beginning of compression is 1 bar and pressure at the…

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Q: A compression ignition engine operates on a diesel cycle has a compression ratio of 20 and uses air…

A: Given data: r=20rc=1.5P1=100 kPaT1=30°C=303 KT3=2000°C Need to define the mechanical efficiency for…

Q: An engine working on dual cycle has bore of 25 cm and stroke of 40 cm. The pressure and temperature…

A:

Q: An engine Operates on the air-standard Otto Cycle. The cycle work is 1050KJ/kg. What is the…

A: Given data: The cycle work is W=1050 kJ/kg The maximum temperature in the cycle is T3=3176 K The…

Q: ses a four-stroke Otto cycle with turbocharging that is air-standard. The air-fuel mixture enters…

A: To determine the amount of net effort done during the compression stroke.

Q: An ideal Diesel cycle operates on a 2 liters engine with a compression ratio 20 and cutoff ratio of…

A:

Q: An ideal Diesel cycle has the air inlet temperature and pressure of 20 °C and 92 kPa respectively.…

A:

Q: 17. A diesel engine working on an air standard cycle has a peak temperature of 1200K. If the…

A: Given Data Tmax=1200 K rc=20 T1=30°C

Q: In an unused area of test facility, lies two internal combustion engines that were brought in for…

A: For compression ignition engine The compression ratio is rk=6. The cut-off ratio is rc=3.6. The…

Q: A beam is supported by a pin at point A and a roller at point B. Distributed loads are applied to…

A:

Q: (a) A spark ignition engine operates on the air-standard Otto cycle. Air is induced at 1 bar and 30…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: The maximum pressure of an ideal Otto cycle is 5.6 MPa. The compression ratio of the cycle is 8.2…

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Q: 3. The compression ratio of an Otto cycle is 9.32 with a T1 and T3 of 328 K and 1,123 K,…

A:

Q: (b) A diesel engine has a compression ratio of 18 and a cut off ratio of 2.4. At the beginning of…

A:

Q: An engine operates on the theoretical diesel cycle with a compression ratio of 14. The heat addition…

A: Diesel Cycle: Compression ratio: r= 1.4 CP=1.005 kJ/kg.K CV=0.718 kJ/kg.K R=0.287 kJ/kg.K…

Q: A spark ignition engine operates on the air-standard Otto cycle. Air is induced at 1 bar and 30 oC…

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Q: In an air standard Otto Cycle, air enters at 101.25Kpa and 36°C. The compression ratio is 4:1. If…

A: Given data: The pressure at the inlet of compressor is P1=101.25 kPa The temperature at the inlet of…

Q: A modern diesel engine operating on the dual combustion cycle with a compression ratio of 15.5/1…

A: Givenrk=15.5p=1.013barT=23oCQV=168kJ/kgQp=375kJ/kg

Q: An ideal Brayton cycle has a pressure ratio of 8. At the beginning of the compression process, air…

A:

Q: An engine working on air-standard dual cycle has compression ratio 9.the pressure and temperature at…

A: Given data as per the question compression ratio = 9 Pressure at beginning =1 bar The temperature at…

Q: The maximum temperature and pressure in a dual- combustion cycle are 2100 degree centigrade and 72…

A: Write the given data with suitable variables. T4=2100 °CP3=P4=72 barT1=20 °CP1=1 barT1=20 °Cr=18

Q: A constant volume fuel-air cycle of compression ratio of 7, operates on a hydrocarbon fuel of CsH17.…

A: Internal combustion engine It is a device that is used to convert chemical energy of fuel into heat…

Q: 4 cylinder engine is operating with a compression ratio of 10 and maximum pressure of 50 bar. At the…

A: Given: Total volume, V1=2.5 LPressure in the beginning of compression stroke,P1=1 barTemperature at…

Q: Compression begins at 100kPaa and 3000K in an air standard diesel cycle. The compression ratio is a…

A: Given Data r=12  State 1: 100 kPa, 300 K Tmax=2000 K

Q: If the isentropic compression ratio of a Carnot cycle is 5 and the lower temperature limit of the…

A: Putting all these value in efficiency formula for air standard otto cycle, we got power is equal to…

Q: A 4 cylinder, 4 liter compcompression-ignition engine operates on the air standard dual cycle. It…

A: For one cylinder calculate the displacement volume.

Q: An engine operates on an air-standard Otto cycle with a compression ratio of 9. pressure and…

A: Given:Compression ratio, r=9Pressure at the end of compression, P2=800 kPaTemperature at the end of…

Q: An ideal Diesel cycle has the air inlet temperature and pressure of 28 0C and 92 kPa respectively.…

A:

Q: Thermal efficiency of standard Otto cycle for a compression ratio 5.5 will be

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Q: Consider an ideal 4-stroke Diesel engine cycle. Air is compressed isentropically and combustion is…

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Q: A diesel engine has a compression ratio of 18 and a cut off ratio of 2.4. At the beginning of the…

A: Air standard assumptions: Air is the only working fluid. Air is assumed to be perfect gas. It…

Q: Calculate the efficiency of an Diesel cycle assuming Cold Air-Standard Analysis operating in air (k=…

A: Given is  for cold air standard diesel cycle  k = 1.4  r = 20 cutoff ratio( rc ) = 1.7     To…

Q: 2. (a) Define the physical processes which comprise the four stroke cycle AND Define the…

A: 2 (a) To define: The physical processes comprise the four stroke cycle and the thermodynamic…

Q: (a) Derive an expression for the air standard efficiency of a Brayton cycle in terms of pressure…

A: The derivation of the air standard efficiency is given below step by step.

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.