An engine operating on an ideal Diesel cycle has a cylinder volume when the piston is at bottom-dead-center (BDC), V1 = 1 liter = 0.001 m3. The intake pressure and temperature are P1 = 100 kPaand T1 = 300 K. The engine cycle contains the following processes: • Adiabatic compression toV1/25. • Constant pressure heating to V1/16. • Adiabatic expansion to V1. • Constant volume heatrejection back to P1, T1.The gas in the cylinder has the following fixed values of the specific heats; Cp = 1004.0 J/kg - K, andCv = 717 Jkg K. Perform the following analysis:a. Calculate pressure, temperature, and volume at each state point and enter in a table like the onebelow and make a sketch of the cycle on a P-V diagram. Label the cycle state points.b. What is the value of the cutoff ratio for this cycle, and the amount of heat added per cycle, Qin?c. Find the net work produced per cycle, Wnet, the cycle efficiency, nDiesel, and how much power isproduced by this one cylinder if used in a 4-stroke engine rotating at 2400 RPM?Temperature, T(Kelvin)Cycle StateVolume, VPressure, PPoint(liters)(kPa)1-0300-0100-03

(a) The P-V diagram of the ideal diesel cycle is given as, The specific heat ratio, At point 1:…

Answered: An engine operating on an ideal Diesel…

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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In a 4-stroke ideal diesel cycle; The cylinder volume is 0.96 liters when the piston is in bottom dead center, and the cylinder volume is 0.06 liters when it is in top dead center. At the beginning of compression, the temperature is T1 = 336 K, P1 = 98 kPa. 1.64 kJ / cycle heat is released as a result of combustion. The mechanical efficiency of the 6-cylinder engine operating at n = 1860 rpm is m = 0.84. Since Cv = 716.5 J / kg K, Cp = 1003.5 J / kg K, R = 287.13 J / kg K; a) Thermodynamic values at the cycle points, b) Effective power of the engine.
Thermodynamics Answer the following questions with complete solutions. write legibly An engine operates with air on the cycle shown with isentropic processes 1 - 2 and 3 - 4, and constant volume processes at 2 - 3 and 4 - 1. If the compression ratio (r) is 12, the minimum pressure is 200 kPa, and the maximum pressure is 10 MPa, determine the net cycle work (Wcycle) in terms of the final volume of isentropic compression process (V2). (Note: r = V1/V2 = V4/V3).
For a Rankine cycle, decreasing minimum pressure while holding all other parameters constant will allow an engineer to make the following statements Group of answer choices The quality at the turbine exit will decrease increasing liquid water content and back stage turbine damage, Turbine net work output will increase due to the reduced pressure at the exit The quality at the turbine exit will increase improving turbine reliability The average temperature at which heat is rejected will increase increasing thermal efficiency
Steam enters the high-pressure turbine of an ideal reheat Rankine cycle at 10 MPa and 500°C. The low-pressure turbine inlet admits steam at 1 Mpa. Assume that the pump inlet is a saturated liquid at 10 kPa and that 80 MW of power is produced overall. 1. Report the overall thermal efficiency of the cycle as a percentage (number between 0 and 100) to one decimal place using rounding. 2. Report the mass flow rate, in kg/s, to one decimal place using rounding.
An engine operating on an ideal Diesel cycle has a cylinder volume when the the piston is at bottom-dead-center....
For a Rankine cycle, increasing maximum temperature while holding all other parameters constant will allow an engineer to make the following statements Group of answer choices Quality at the turbine exit will decrease increasing liquid water content and causing turbine erosion. Quality at the turbine exit will increase and improve turbine durability. Increasing maximum temperature increases the average temperarture at which heat is added and will increase thermal efficiency Increasing maximum tempearture will decrease required mass flow rate for a specified power output.
The temperature of T1 = 325 K and pressure P1 = 98 kPa at the start of compression of a spark ignition engine operating according to Ideal Otto cycle. The volumetric compression ratio is r = 6 H / Y = 15. Course volume of the cylinder is Vh = 624 cm3 and the number of revolutions is n = 3160 rpm. The lower heat value of the fuel is 38.2 MJ / kg. Combustion efficiency is ny = 0.76, mechanical efficiency is nm = 0.84 and the number of cylinders is 6. C v = 716.5 J / kg K, R = 287.13 J / kg K, n gasoline = 720 kg / m3, liter price of gasoline will be taken at the value of 5.26 TL. a) Find the thermodynamic coordinates of the cycle. b) Find the thermal efficiency and effective power of the engine. c) Find the hourly fuel consumption of the engine. d) Assume the outside air temperature of 15 degree Celcius and outside air pressure of 100 kPa, and find the volume of air polluted by the engine hourly.
Consider a simple and ideal Brayton cycle operating with a pressure ratio of 8, where the air enters the compressor at 300 K and 100 kPa, while it enters the turbine at 1050 K. Assume speciﬁc heats are evaluated at 700 K. 1.Report the thermal efficiency as a percentage (0 to 100) to one decimal place using rounding. 2. Report the amount of heat rejected by the cycle in kJ/kg to one decimal place using rounding.
A simple ideal Rankine Cycle operates between the pressure limits of 6969 kPa and 69 kPa. If the condenser pressure is to be set to 6.9kPa, and the turbine inlet steam is fixed, which of the following variables should decrease? I. Condenser DutyII.Turbine outlet steam quality a. I onlyb. Both I and IIc. II onlyd. Neither I nor II
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