***Show your correct and complete solution neatly. Thank you! ***A four-cylinder compression-ignition engine with a compression ratio of 18 has pistonswith a bore of 9 cm and a stroke of 10 cm. The air pressure at the beginning ofcompression is 98 kPaa, and the temperature is 37 °C. The engine may be modeled bythe air-standard Diesel cycle. The maximum cycle temperature is 1700 °K. If the engineproduces 75 kW of power, determine:a) the heat supplied per cylinderb) the thermal efficiencyc) the rpm required.

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Answered: A four-cylinder compression-ignition…

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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An ideal gas Diesel engine, that has an inlet temperature, pressure and compression ratio of 21 °C and 102 kPa 18:1 respectively. The maximum cycle temperature is 1,264 °C. Take Specific heat at constant pressure and constant volume for air as 1.004 kJ/kg K and 0.715 kJ/kg K respectively. Calculate the thermal efficiency of the cycle to one decimal place and include the correct unit (percentage). Add unit symbol.
The compression ratio of the ideal Otto cycle working with air is 8. The highest and lowest temperatures of the cycle are 1625K and 315K, respectively. Considering the variation of specific heat with temperature, calculate a) the heat supplied to the cycle, b) the thermal efficiency of the cycle, c) the efficiency of a Carnot cycle operating between the same temperature limits.
An ideal gas Diesel engine, that has an inlet temperature, pressure and compression ratio of 22 0C and 102 kPa 21:1 respectively. The maximum cycle temperature is 1,276 0C. Take Specific heat at constant pressure and constant volume for air as 1.005 kJ/kg K and 0.717 kJ/kg K respectively. Calculate the specific heat rejected during the cycle to one decimal place and include the correct SI unit.
An air-standard Otto cycle has a compression ratio of 9. At the beginning of compression, P1 = 100 kPa and T1 = 300 K. The heat addition per unit mass of air is 1350 kJ/kg. Determine: a) the net work, in kJ per kg of air b) the thermal efficiency of the cycle c) the mean effective pressure, in kPa
Q₁) In an ideal otto cycle engine, the temperature and Pressure at the beginning of Compression are 43 C 100 kpa respectively and the temperature at the end of adiabatic Compression is 323%. if the temperature. at the end of Gnstant Volume heat addition is 1500°C calculate: (a) the Compression ratio, (b) the air- standard efficiency, (c) the temperature and pressure at the end of adiabatic expansion. Assume Yas 1.4 Por 2
An ideal gas Diesel engine, that has an inlet temperature and pressure of 19 0C and 102 kPa respectively with a compression ratio of 23:1. The maximum cycle temperature is 1,237 0C. Take Specific heat at constant pressure and constant volume for air as 1.005 kJ/kg K and 0.717 kJ/kg K respectively. Calculate the specific heat received to one decimal place and include the correct SI unit.
There are supplied 400 kJ per cycle to an ideal diesel engine operating on 0.5 kg of air. At the beginning of compression, pressure is 100 kPa and temperature is 50 degrees Celsius. At the end of compression, pressure is 4000 kPa. Determine the ff: Compression ratio t2, t3, V3, P4, t4 in degree Celsius, m³ and kPa Heat rejected in kJ Network in kJ Thermal efficiency, % MEP in kPa
An ideal otto engine , operating on the hot air standard with k= 1.3, has a compression ratio of 6.At the beginning of the compression the volume is 0.1982 cubic meter , the pressure is 15 psia and the temperature is 560 R .During the constant volume heating , 259 Btu are added per cycle . Find (a) c,(b) t3 ,(c) p3 ,(d) e, and (e) pm?
3. What are the four major accessories of a Rankine Cycle? Define each.
An ideal Diesel engine uses air initially at 20°C and 90 kPa at the beginning of the compression process. If the compression ratio is 15 and the maximum temperature in the cycle is 2000ºC, determine the following: .net work (kJ) produced a. 812 b. 930 c. 1010 d. 1414 mean effective pressure (kPa) a. 812 b. 930 cut-off ratio a. 1.3 b. 2.8 c. 1010 d. 1414 c. 2.6 d. 5.7
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In an ideal diesel cycle the pressure and temperature at the beginning of the adiabatic compression are 98.5kN/m^3 and 60°c, respectively.themaximum pressure attained during the cycle is 4.5MN/m^3 and the heat received during the cycle is 580kJ/kg gas.Determine for the cycle a) the volume ratio of compression b) the temperature at the end of compression c) the temperature at the end of heat reception d) the temperature at the end of adiabatic expansion e) the net work done/kg of gas f) the thermal efficiency g) the work ratio h) the mean effective pressure I) the Carnot efficiency within the cycle temperature limits.

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