Hiii plz solve all Parts for me Problem 6- Diesel cycle with irreversibilityA diesel cycle is modeled with air. The compression ratio and cutoff ratio are 18 and 1.5,respectively. The adiabatic compression process has an isentropic efficiency equal to 90%, andthe adiabatic expansion process has an isentropic efficiency equal to 95%. Using the method ofthe cold-air standard when at the start of the compression the pressure and temperature are95 kPa and 17°C, respectively, please answer the following.Sketch the cycle on a P-v and T-s diagrams.Determine the maximum temperature of the air inside the cylinder.Compute the net work for one cycle in kJ/kg.Determine the heat supplied per until mass of air during the constant pressure process.Compute the thermal efficiency for the cycle.Now you want to estimate the amount of fuel consumption per cycle, in kg. Considerthat the diesel fuel has a heating value equal to 42000 kJ/kg and the combustionefficiency is 92%.

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Answered: A diesel cycle is modeled with air. The…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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(c) In an engine working on the ideal Otto cycle, the pressure and temperature at the beginning of compression are 100 kPa and 40 °C respectively. The ratio of specific heat capacities is 1.4. If the airstandard efficiency of the engine is 50%, determine(i) The compression ratio. (ii) The pressure and temperature at the end of adiabaticcompression.
Air undergoes Isothermal expansion in a Carnot cycle where the pressure. decreases from 2.5 MPa to 1.5 MPa. This process has a temperature of 550 K and it decreases to 400 K before the Isothermal compression stroke. Find a.) Qa, b.) Qr, c.) Whet (kJ/kg), d.) the efficiency (%), e) draw the T-S diagram with proper label of points, and f.) the pressures before and after Isothermal compression
In a standard Diesel cycle, compression starts at the final ambient conditions of the addition of heat, conditions are 5.0MPA for pressure and 1750 ° C for temperature. Using with specific heats evaluated at 300K. Determine: a) The mean effective pressure, in kPa. b) The thermal efficiency of the cycle. c) The cut-off ratio. d) The compression ratio.
A turbojet-powered aircraft is flying at 220 m/s and 8000-m altitude, where the ambient temperature and pressure are 236K and 35kPa, respectively.The pressure ratio of the compressor is 6 and the turbine inlet temperaturer is 970k. Estimate the thrust developed by the engine when the air flow rate is 55kg/s. employ an air standard-cycle analysis using the constant-pressurree specific heat c_p and specific heat ratio γ for air and neglecting the fuel properties.
A Diesel cycle has a compression ratio of 22 and begins its compression at 87 kPa and 15°C. The maximum cycle temperature is 1200°C. Utilize air-standard assumptions. The properties of air at room temperature are R = 0.287 kPa·m3/kg·K, cp = 1.005 kJ/kg·K, cv = 0.718 kJ/kg·K, and k = 1.4. Determine the thermal efficiency of this cycle using variable specific heats at room temperature. Use data from the tables. The thermal efficiency of this cycle is?
3. Assume an Otto cycle with compression ratio of CR = 9 : 1. The intake air is at 100kPa, 20oC, and the volume of the chamber is 500cm3 prior to the compression stroke. The temperature at the end of the adiabatic expansion is T4 = 800K. If air specific heat capacity at constant pressure of air at atmospheric pressure and room temperature is cp = 1.01KJ/kgK. Specific heat capacity at constant volume of air at atmospheric pressure and room temperature: cv = 0.718KJ/kgK. Calculate: (i) the mass of the intake air; (ii) the temperature T3; (iii) the pressure p3; (iv) the amount of heat added by burning fuel-air mixture; (v) the thermal efficiency of the cycle; (vi) the mean effective pressure (MEP).
3. Assume an Otto cycle with compression ratio of CR = 9 : 1. The intake air is at 100kPa, 20oC, and the volume of the chamber is 500cm3 prior to the compression stroke. The temperature at the end of the adiabatic expansion is T4 = 800K. If air specific heat capacity at constant pressure of air at atmospheric pressure and room temperature is cp = 1.01KJ/kgK. Specific heat capacity at constant volume of air at atmospheric pressure and room temperature: cv = 0.718KJ/kgK. Calculate: (iv) the amount of heat added by burning fuel-air mixture; (v) the thermal efficiency of the cycle; (vi) the mean effective pressure (MEP).
Show a derivation of final temperature of otto cycle and diesel cycle in terms of initial temperature and ratios
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.
A gas turbine power plant operating on an ideal brayton cycle has a pressure ratio of 8. The gas temperature is 320k at the compressor inlet and 1400k at the turbine inlet. Using the air-standard assumptions, determines: 1. The back work raio 2. The temperature at the exits of the turbine and exits of the compressor 3. The thermal efficiency in decimals
An ideal Diesel cycle has a maximum cycle tempera¬ture of 2000°C. The state of the air at the beginning of the compression is P1 = 90 kPa and T1 = 15°C. This cycle is exe¬cuted in a four-stroke, eight-cylinder engine with a cylinder bore of 12 cm and a piston stroke of 14 cm. The minimum volume enclosed in the cylinder is 5 percent of the maximum cylinder volume. Determine the power produced by this engine when it is operated at 1500 rpm. Use constant specific heats at room temperature.
Consider a Diesel cycle with cold-air-standard assumptions, and compression ratio of 21. The temperature and pressure at the beginning of the compression process are 320K and 120kPa respectively. The cutoff ratio for this cycle is 1.8. The isentropic efficiency of the compression and expansion process are 85%. Determine the temperature and pressure at the end of each process of the cycle, the heat transfer per unit mass in and out of the air; qin and qout, thermal efficiency of the cycle, and the mean effective pressure of the cycle.

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