An ideal Otto cycle has a compression ratio of 12 .At the beginning of the compression process, air is at 100 kPa and 37°C, and 1000 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Utilizing the cold-air-standard assumptions (The gas constant of air is R = 0.287 kJ/kgK and its other properties at room temperature are cp =1,005 k/kgK, cv 0.718 KJ/kgK and k= 1.4) %3D Find the net-work output and the thermal efficiency for this cycle.

An ideal Otto cycle has a compression ratio of 12 .At the beginning of the compression process, air is at 100 kPa and 37°C, and 1000 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Utilizing the cold-air-standard assumptions (The gas constant of air is R = 0.287 kJ/kgK and its other properties at room temperature are cp =1,005 k/kgK, cv 0.718 KJ/kgK and k= 1.4) %3D Find the net-work output and the thermal efficiency for this cycle.

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

See similar textbooks

Related questions

Q: It is proposed to use a Brayton cycle with an intercooler added to the compressor. Air enters the…

A: Given data: ◆ The condition of air at entry to the compressor: P1 = 100 kPa and T1 = 25 ℃ = 298 K ◆…

Q: The compression ratio of an air-standard Otto cycle is 8. Prior to the isentropic compression…

Q: An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air…

A: Given:To find:Thermal efficiency.

Q: An ideal Otto cycle has a compression ratio of 6. At the beginning of the compression process, air…

Q: Someone has suggested that the air-standard Otto cycle is more accurate if the two polytropic…

Q: At the beginning of the compression process of an ideal Diesel cycle, air is at 95 kPa and 7°C, and…

A: A particular example of the adiabatic process is the isentropic process. It is an adiabatic process…

Q: A four-cylinder, four-stroke, 1.6-L gasoline engine operates on the Otto cycle with a compression…

A: Given data: *The compression ratio of the Otto cycle is r=11. *The initial temperature of the air at…

Q: Someone has suggested that the air-standard Otto cycle is more accurate if the two polytropic…

A: Given:r=8P1=95 KPaT1=15 deg C =288KT3=1500°C =1773 K

Q: A regenerator of 75 percent effectiveness is used in an air-standard Brayton cycle working between…

Q: In a cold-air standard diesel cycle, the volume of the cylinder amounts to 85 cm3 at the beginning…

Q: Heat of 2100 kJ/kg is supplied to a cold air-standard Otto cycle with a compression ratio of 8. If…

A: Given data: Heat supplied, Qs = 2100 kJ/kg. The pressure at the beginning of the compression…

Q: An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air…

A: Given:Find:The net work output of the cycle.

Q: In an ideal Otto cycle, air is compressed from a volume of 2.5 L to 0.21 L at a temperature of 20°C.…

Q: Explain the thermodynamic processes involved in a multi-stage compression system, outlining the…

A: In the realm of thermodynamics, compression systems play a crucial role, especially in applications…

Q: At the beginning of the compression process of an ideal Diesel cycle, air is at 95 kPa and 22°C, and…

Q: An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air…

A: Given, Compression ratio (r) =V1V2= 8 P1 = 100 kPa T1 = 17°C=17+273=290 K Q = 800 kJ/kg T2= ? P2 =?…

Q: al cycle has an initial temperature of 30°C. The compression ratio is 6 and the heat addition at…

A: Solution is attached below

Q: he compressor of this engine at 100 kPa and 30°C. The compres e ratio is 10; the maximum cycle…

Q: An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air…

A: The compression ratio of otto cycle is .The initial pressure is .The initial temperature is The heat…

Q: The compression ratio of an air-standard Otto cycle is 9.5. Prior to the isentropic compression…

A: To find: The mean effective pressure. Given: The compression ratio is r=9.5. The initial temperature…

Q: In a cold-air standard diesel cycle, the volume of the cylinder amounts to 85 cm3 at the beginning…

Q: Consider an air-standard Otto cycle. Prior to the isentropic compression process, the air is at 100…

Q: The temperature of air at the beginning of compression in an Otto cycle is 310 K and maximum…

A: Temperature of air at the beginning of compression in an Otto cycle, T1= 310 K Maximum temperature…

Q: In a gas turbine plant operating on the constant-pressure cycle, the pressure ratio is 6 and the…

A: Given Data Tmax=1088 K Tmin=272 K

Q: The Otto cycle with a compression ratio of 10. The air is at 100 kPa and 60°C at the beginning of…

Q: Consider a modification of the cold air-standard Otto cycle in which the isentropic compression and…

Q: An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air…

Q: An ideal Otto cycle has a compression ratio of 6. At the beginning of the compression process, air…

A: The air standard cycle

Q: A four-cylinder, two-stroke 2.4-L diesel engine that operates on an ideal Diesel cycle has a…

A: Given data ρ=1.8rc=22P1=97 kPaT1=70 °c

Concept explainers

IC engines

The term "engine" indicates a mechanical device/machine used to convert input energy to a specific mechanical output. The input energy may be in the form of chemical energy, thermal energy, or so on and mechanical output is in the form of mechanical energy (work done). Generally, the engines classify into two groups which are internal combustion type and external combustion type, and further, these two types can be classified into two types that are reciprocating and rotary engines.

Question

100%

An ideal Otto cycle has a compression ratio of 12 . At the beginning of the compression process, air is at 100 kPa and 37°C,
and 1000 kJ/kg of heat is transferred to air during the constant-volume heat-addition process.
Utilizing the cold-air-standard assumptions (The gas constant of air is R = 0.287 kJ/kgK and its other properties at room
temperature are cp =1,005 kJ/kgK, cv = 0.718 KJ/kgK and k = 1.4)
Find the net-work output and the thermal efficiency for this cycle.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Given

Step 1

Step 3

Step 4

Step by step

Solved in 4 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27°C, and 800 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Take into account the variation of specific heats with temperature. The gas constant of air is R = 0.287 kJ/kg-K. Determine the mean effective pressure for the cycle. The mean effective pressure for the cycle is 0 kPa.
A gas turbine for an automobile is designed with a regenerator. Air enters the compressor of this engine at 100 kPa and 30°C. The compressor pressure ratio is 8, the maximum cycle temperature is 800°C, and the cold airstream leaves the regenerator 10°C cooler than the hot airstream at the inlet of the regenerator. Assuming both the compressor and the turbine to be isentropic, determine the rates of heat addition and rejection for this cycle when it produces 105 kW. Use constant specific heats at room temperature. The properties of air at room temperature are cp = 1.005 kJ/kg-K and k=1.4. Compressor Heat exchanger Comb. 4+ Turbine The rate of heat addition for this cycle is The rate of heat rejection for this cycle is - kW. kW.
plementary Exam (1 x php?attempt=D176481 At the beginning of the compression process of an ideal Diesel cycle, air is at 95 kPa and 25°C, and 640 kJ/kg of heat is transferred to air during the heat-addition process. At the end of isentropic expansion process, air is at 265 kPa and 607°C. Taking into account the variation of specific heats with temperature, the thermal efficiency of the cycle is Lütfen birini seçin: а. 30.4% b. 27.5% c. 41.2% d. 37.3% e. 43.7% Sonraki sayfa
A gas turbine uses two compression and two expansion stages, each stage having a pressure ratio of 4. The working fluid is intercooled between the two compression stages and reheated between the two expansion stages. Air enters the gas turbine at 100kPa and 17°C. The combustion chamber and reheat stage each contribute 300kJ/kg of heat. A regenerator uses exhausted gases to increase the working fluid temperature prior to the combustion chamber by 20°C. Assume constant thermal properties of air evaluated at 300K during your solution. Assume all turbine and compressor stages are isentropic. Draw the T-s diagram based on the numbering convention in the schematic below. Determine the system's thermal efficiency. Determine the required air mass flow rate to obtain an output of 10MW. 26 REMEWS REHEAT JNTER. Ti C2 Come REGEN. Scannad wim Camirwner
An ideal Diesel cycle has a maximum cycle temperature of 2000°C. The state of the air at the beginning of the compression is P = 95 kPa and T₁-15°C. This cycle is executed in a four-stroke, eight-cylinder engine with a cylinder bore of 10 cm and a piston stroke of 12 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 1400 rpm. Use constant specific heats at room temperature. The properties of air at room temperature are cp=1.005 kJ/kg-K, cy=0.718 kJ/kg-K, R= 0.287 kJ/kg-K, and k=1.4. The power produced by this engine is 603 KTV. 2 W 3 E 4 R T U FB F9 0
A Carnot engine using 1lbm air has the following conditions: heat addition beginning at 2200 psia and 22000R and continuing until the pressure is 1400 psia; isothermal compression from 14.7 psia and 5400R and continuing until the pressure is 23.1 psia. Determine (a) the heat transfer into the cycle; (b) the heat transfer from the cycle; (c) the work for each of the processes; and (d) the cycle efficiency.
A diesel engine operating in an ideal system receives 30kJ/cycle of heat as it operates at 310 RPM. Air is at 100kPa, 310K, and 0.043 m3 at the beginning of the compression. During the beginning of heat addition, the air is at 3500kPa. Determine the pressure, volume, and temperature at each state, the net work, the total power, the thermal efficiency of the cycle, and the mean effective pressure. Draw the P-V and T-S diagrams.
Answer the question.
An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 103 kPa and 27°C, and 1850 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Accounting for the variation of specific heats of air with temperature, determine (a) The maximum temperature and pressure that occur during the cycle (b) The net work output (c) The thermal efficiency