1.A piston-cylinder device contains air at 427 degrees and 134kPa. A pressure increase of 1.378kPa was recorded after the air was compressed isentropically with minimum work input of 1.422KJ. Assuming air has constant specific heats evaluated at given temperature. Determine the mass of air in the device. 2. Air is used as the working fluid in a simple ideal brayton cycle that has a pressure ratio of 12, a compressor inlet temperature of 300k, and a turbine inlet temperature of 1000k. Determine the required mass flow rate in (kg/s) of air for a net power output of 70MW, assuming both the compressor and the turbine have an isentropic efficiency of 100%. Assume constant specific heats at room temperature
1.A piston-cylinder device contains air at 427 degrees and 134kPa. A pressure increase of 1.378kPa was recorded after the air was compressed isentropically with minimum work input of 1.422KJ. Assuming air has constant specific heats evaluated at given temperature. Determine the mass of air in the device. 2. Air is used as the working fluid in a simple ideal brayton cycle that has a pressure ratio of 12, a compressor inlet temperature of 300k, and a turbine inlet temperature of 1000k. Determine the required mass flow rate in (kg/s) of air for a net power output of 70MW, assuming both the compressor and the turbine have an isentropic efficiency of 100%. Assume constant specific heats at room temperature
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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1.A piston-cylinder device contains air at 427 degrees and 134kPa. A pressure increase of 1.378kPa was recorded after the air was compressed isentropically with minimum work input of 1.422KJ. Assuming air has constant specific heats evaluated at given temperature. Determine the mass of air in the device.
2. Air is used as the working fluid in a simple ideal brayton cycle that has a pressure ratio of 12, a compressor inlet temperature of 300k, and a turbine inlet temperature of 1000k. Determine the required mass flow rate in (kg/s) of air for a net power output of 70MW, assuming both the compressor and the turbine have an isentropic efficiency of 100%. Assume constant specific heats at room temperature
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