A Diesel air-standard cycle has a compression ratio of 17.6:1. The pressure and temperature at the beginning of compression are 1 bar and 290 K, respectively. If the maximum temperature of the cycle is 2100 °C, determine Match each item to a choice: the cutoff ratio the thermal efficiency

A Diesel air-standard cycle has a compression ratio of 17.6:1. The pressure and temperature at the beginning of compression are 1 bar and 290 K, respectively. If the maximum temperature of the cycle is 2100 °C, determine Match each item to a choice: the cutoff ratio the thermal efficiency

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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THERMODYNAMICS The compression ratio of an air-standard dual cycle is 14 and the cutoff ratio is 1.2. During the constant-volume heat addition process, the pressure ratio is 1.5. Determine the thermal efficiency, heat added, maximum gas pressure, and temperature when this cycle is run at 80 kPa and 20 degree celcius at the start of the compression. Make use of the cold-air assumption. Show complete solution on a paper.
At the beginning of the compression process of an air—standard Diesel cycle operating with a compression ratio of 18, the temperature is 300 K and the pressure is 0.1 MPa. The cutoff ratio for the cycle is 2. Determine (a) the maximum temperature and pressure at the cycle. (b) Determine the thermal efficiency, (c) Determine the mean effective pressure, in atm.
1. An engine operating on the air diesel cycle with k=1.3 has thermal efficiency of 63% and a cut-off ratio of 1.9. If the pressure atthe end of isentropic expansion is 2.6 bar and bore & stroke of the engine are 105 mm and 130 mm respectively. Determine The maximum pressure of the cycle The compression ratio • The cut off volume
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