2) The compression ratio of an ideal Otto cycle is 7 and prior to compression air is at 285K and90kPa. The maximum pressure of the cycle is 4100kPa. Assuming that the specific heats areconstant where k = 1.4 and cp = 1.005 kJ/kgK. Calculate₂c) the temperature at the end of expansion processďof the cycle if heat is transferred from a source havi-.1.'........... a dead staterature of 85kf

Answered: Image /qna-images/answer/2ad78763-e671-480d-b058-402ad130733e.jpg

Answered: 2) The compression ratio of an ideal…

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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In an ideal otto cycle, heat supplied is 920 Kj/kg and the highest temperature inthe cycle is 1600 deg. C. Calculate the following:a. Temperature at the end of the isentropic compression processb. Change in entropy of a process.
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.
In an ideal Ericsson cycle with a regenerator the pressure ratio is 2.5. The pre-compression pressure is 0.5 Mpa, and the maximum and minimum volumes are 0.02 m ^ 3 and 0.005 m ^ 3, respectively. Since there is 0.06 kg of air in the cycle: a) pre-compression volumeb) compression end pressurec) minimum temperatured) Find the efficiency of the cycle. R = 0.287 kj / kh.K
In an ideal Otto Cycle, the temperature at the end of the heat addition process is2600 deg. F. and the temperature at the end of the expansion process is 883deg. F. What is the compression Ratio?
Instead, assume variable specific heat An ideal Diesel cycle has a compression ratio of 17and a cutoff ratio of 1.3. Determine the maximum tempera-ture of the air and the rate of heat addition to this cycle whenit produces 140 kW of power and the state of the air at thebeginning of the compression is 90 kPa and 578C. Use con-stant specific heats at room temperature
In an ideal Rankine cycle, the steam throttle condition is 4.10 MPa and 440oC. If turbine exhaust is 0.105 MPa, determine the thermal efficiency of the cycle.
1. .An Otto cycle with a compression ratio of 7.5 operates from the suction conditions of 97.91 Kpaa,29.4C.find the pressure and temperature at the end of compression a)if coldair(k=1.4) is the working sustance b) if hot air(k=1.32) is the working substance.
An ideal air standard Otto cycle has a compression ratio of 8.5 If the ratio of the specific heats of air (y) is 1.4 what is the thermal efficiency (in percentage) of the Otto cycle?
An air standard Otto cycle has a compression ratio of 9. At the beginning of the compression process, the air is at 95 kPa, 27 oC and 500 cm3. The temperature at the end of the expansion process is 790 K. Assume constant specific heats for air at room temperature. Determine: 2.1 the highest temperature and pressure in the cycle, 2.2 the amount of heat supplied in Joules, 2.3 thermal efficiency of the cycle, and 2.4 sketch the processes on a P–v and T–s diagrams clearly showing the values of pressures and temperature obtained in 2.1.
An Otto Cycle, with a 7 to 1 compression ratio, has 320 Btu/lb of heat supply. Atthe beginning of the compression process the pressure and temperature are 14.7Psia and 60 deg. F. Assuming constant specific heat, Calculate:a. Peak Temperatureb. Peak Pressurec. Net Workd. Thermal Efficiency
A standard Otto air cycle has a r=8 compression ratio. Initially, theCompression temperature is 27ºC and the pressure is 100 kPa. The heat supplied is 3MJ/Jg. Data k= and R=287 J/kg. K and imagining that the cycle represents a 4T engine of displacement of 1600 cm³, at 3600 rpm, determine a) The efficiency of the cycle b) The properties p, T and v at each point
In diesel cycle at the beginning of the compression process, air is 95 kPa and 690 K. The ideal Diesel cycle has a cutoff ratio of 1.3 and the maximum temperature and peak pressure of 2000K and 6000kPa, respectively. Taking into account the variation of specific heats with temperature, determine a)The compression ratio b) rate of heat addition c) the work cycle d) thermal efficiency in %

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