Dont reject. Hiii plz solve all Parts for me Problem 1 (Ideal Diesel Cycle)A six-cylinder, four-stroke, 3.2-L compression-ignition engine operates on the ideal diesel cyclewith a compression ratio of 20. The air is at 100 kPa and 67°C at the beginning of the compressionprocess and the engine speed is 2000 rpm. The engine uses light diesel fuel with a heating valueof 45,000 kJ/kg, an air-fuel ratioof 29, and a combustion efficiency of 95 percent.Although the air-fuel mixture in a real Diesel engine is combusted inside the cylinder, considerhere an idealized scenario in which the cylinder contains only air. The energy provided viacombustion is then treated as heat transfer across the boundary of the cylinder.mairmfuelUsing constant specific heats at 850 K, determinethe maximum temperature in the cycle and the cutoff ratio,the net work output per cycle,the thermal efficiency,the net power output,Note: Since this is a 4-stroke engine, each process on the P-v diagram represents onestroke of the piston. Furthermore, there are 2 piston strokes for every one enginerevolution, and so it takes 2 engine revolutions to complete the thermodynamic cyclerepresented on the P-v diagram.the specific fuel consumption in g/kWh, defined as the ratio of the mass of the fuelconsumed to the net work produced.Hint: The total thermal energy provided by the combustion of the fuel can be written as= mfuel HVf fuel combustionQfuel

To given:The compression ratio is the initial pressure is the initial temperature is The swept…

Answered: A six-cylinder, four-stroke, 3.2-L…

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

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6. In an air-standard Diesel cycle, the pressure and temperature at the beginning of the compression stroke are 100 kPa and 295 K respectively, and the heat supplied is 1500 J/mol, what are the compression ratio and the expansion ratio of the cycle if the pressure at the end of combustion step is 400 kPa. Assume air to be an ideal gas with Cp = (7/2)R and Cy = (5/2)R.
1. Cylinder conditions at the start of compression of a four-stroke cycle SIO engine are 27C and 100 kPa. The engine has a compression ratio of = 6:1, and heat addition from combustion is qin = 2400 kJ/kg. Calculate: Temperature at each state of the cycle, using air-standard Otto cycle analysis with constant specifics heats. 2. A gasoline engine has a volumetric has a volumetric compression ratio of 10 and before compression has air at 290 K, 85 kPa, in the cylinder. The combustion peak pressure is 6000 kPa. Assume cold air properties. What is the highest temperature in the cycle? Find the temperature at the beginning of the exhaust (heat rejection) and the overall cycle efficiency. 3. A supercharged spark-ignition engine operates on the air-standard Otto cycle. The inlet conditions are 210kPa and 100°C and the maximum temperature and pressure are 2250°C and 7.5MPA. Determine (a) the network; (b) the cycle efficiency. (use k=1.4)
4] A Diesel engine operates on the air-standard cycle and has a displacement of3.5 liters. The engine’s compression ratio is 19, and the cutoff ratio is 2.4. The conditionsat the beginning of compression are 37 oC, 98 kPaa, and 3.7 liters. If the engine operatesat 1500 rpm, determine a) the compression ratio; b) the cycle work; and c) the powereddeveloped.
An ideal Diesel cycle operates on a 2 liters engine with a compression ratio 20 and cutoff ratio of 1.6. At the beginning of the compression process, the air is at 50°C and 75 kPa. By considering the cold-air standard assumptions, 1. Calculate power output if the engine operates at 2500 rpm. 2. Calculate the thermal efficiency of the cycle.
A 4-litre 4-cylinder air-standard Otto cycle engine works on benzene fuel at an air-fuel ratio of 15.The compression ratio of the engine is 10. At the start of the compression stroke, conditions in the cylinders are 60°C and 100 KPa. the benzene low heating value is 41800 KJ/kg Calculate: 1. Temperature and pressure at each state of the cycle, Indicated thermal efficiency, Residual gas temperature after blow down and ambient temperature 2.plot the PV diagram of this cycle and If this engine is operating on the dual cycle, will the efficiency be larger or smaller than the diesel cycle?
Cylinder conditions at the start of compression of a four-stroke cycle SIO engine are 27C and 100 kPa. The engine has a compression ratio of rc= 6:1, and heat addition from combustion is qin = 2400 kJ/kg. Calculate: Temperature at each state of the cycle, using air-standard Otto cycle analysis with constant specifics heats.
The cylinder of an Ideal Dual Combustion Cycle,, with a pressure ratio of 2, has a bore of 7 inches and a stroke of 7.5 inches. Theengine operates at 6000 rpm having a compression ratio of 21 and a cut-off ratio of 1.34. Air enters with a temperature and pressure of 67°F and 15 psi. Determine the following:a. Pressure & Temperature at each state.b. Power output of the engine (hp).c. Thermal Efficiency.
1. An engine operates on the air-standard diesel cycle. The condition at the start of compression are 27 degree celsius and 100kPa. The heat supplied is 1840kJ/kg, and the compression ratio is 16. Determine the maximum temperature and pressure, the thermal efficiency and the mean effective pressure. 2. Calculate the bore and stroke of a six-cylinder engine that delivers 22.4 kW at 1800 rpm with a ratio of bore to stroke of 0.71. Assume the mean effective pressure in the cylinder is 620 kPa and the mechanical efficiency is 85%. 3. A spark-ignition engine produce 224 kW whle using 0.0169 kg/s of fuel. The fuel has a higher heating value of 44 186 kJ/kg, and the engine has a compression ratio of 8. The friction power is found to be 22.4 kW. Determine the brake thermal efficiency, mechanical efficiency,and the rest of the efficiencies.
A 2-stroke engine that works based on the diesel cycle admits air conditioning 100kPa and 280K. The compression ratio is 20:1 and the fuel-air ratio is 7.5x10^-3 kg fuel/kg air. If the calorific value of the fuel is 42750 KJ/kg, the displacement volume is 0.8L (with a diameter equal to 1.1 the stroke of the piston) The engine is 6-cylinder and rotates at 3600 rpm, use air tables and tables of combustion products with 200% excess air to determine: a) The cycle in a pressure-volume diagram with its corresponding numbering. b) The maximum temperature of the cycle, in K c) The cutoff ratio d) The temperature of the combustion gases at the engine outlet, in K e) The cooling water mass flow, in kg/s f) The motor power, in kW g) The mean effective pressure, in kPa h) Thermal efficiency, in %
ces ! Required information A four-cylinder, four-stroke, spark-ignition engine operates on the ideal Otto cycle with a compression ratio of 11 and a total displacement volume of 1.8 L. The air is at 90 kPa and 50°C at the beginning of the compression process. The heat input is 1.1 kJ per cycle per cylinder. The gas constant of air is R = 0.287 kJ/kg-K and use constant specific heats with cv=0.821 kJ/kg-K, cp = 1.108 kJ/kg-K, and k= 1.35. Determine the maximum temperature and pressure that occur during the cycle. (You must provide an answer before moving on to the next part.) The maximum temperature during the cycle is The maximum pressure during the cycle is K. kPa.
Given the same compression ratio for both air standard Otto and air standard Diesel cycle, which cycle has higher thermal efficiency? Answer the same question this time for the Otto cycle versus the Brayton cycle
Cylinder conditions at the start of compression in a spark ignition engine operating atwide open throttle on an air-standard Otto cycle are 60oC and 98kPa.The engine has a compression ratio of 9.5:1 and uses petroleum with an air-fuel ratio(AF) of 15.5.Combustion efficiency is 96%, and it can be assumed that there is no exhaust residual.If the petroleum has a heating value (QHV) of 43kJ/kg,Calculate the following: 1) Temperature in oC and Pressure in kPa at all states in the cycle 2) Specific work done during the power stroke in kJ/kg 3) Heat added during combustion in kJ/kg 4) Net specific work done in kJ/kg5) Indicated thermal efficiency

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