4. An ideal dual combustion cycle has a compression ratio of 10.At the beginning of compression, the pressure andtemperature of air is 13 psia and 64 °F with a specific volumeof 11.22 ft^3/lbm. Calculate the following if the heat added atconstant volume and pressure is 150 BTU/lbm. a. The cycletemperature at the beginning of the heat rejection process in°R b. The cycle heat rejected, BTU/lb c. The cycle network,BTU/lb.

Answered: Image /qna-images/answer/166217be-afca-46b0-a723-3cc722ff0654.jpg

Answered: 4. An ideal dual combustion cycle has a…

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 a Diesel cycle, the volume at the end of the isentropic compression is 0.07 L. If the displaced volume of the cycle is 0.78 L, the cutoff ratio is 1.52, the specific heat ratio is y=1.37 and the heat rejected is 430 kJ/kg, the work done in kj per kg of air is: Select one: a. 705.2 Ob.521.4 Oc. 124.5 d. 566.0
24A petrol engine working on the constant volume cycle has a compressioni ratio of 9 to 1. If the pressure and temperature of the petrol-vapor air mixture at the beginning of compression are 99.30 kPa and 38 C respectively. Calculate the temperature at the end of compression assuming it follows the law PV = C. A 383.45 C B. 728.45°C C. 899.30°C D. 883.48°C
Task 04 b). Take γ for air as 1.4 for both. The compression ignition engine Assumed to be operating on ideal air-standard Diesel cycle has a compression ratio of 18 and a cut-off ratio of 2. At the beginning of the compression process, air is at 95kPa and 92 0C . Accounting for the variation of specific heats with temperature, i) determine the temperature after the heat-addition process ii) thermal efficiency. iii) using the available information determine the relative efficiency.
In a Diesel cycle, the volume at the end of the isentropic compression is 0.07 L. If the displaced volume of the cycle is 0.78 L, the cutoff ratio is 1.57, the specific heat ratio is y=1.38 and the heat added is 930 kJ/kg, the heat rejected in kJ per kg of air is: Select one: O a. 124.5 O b. 705.2 O c. 395.3 O d. 521.4
4
Read the question carefully before answering. Box or indicate your final answers when solving and draw your diagrams cleanly. Complete solution please. Use 2 decimal places when solving and for final answers. Draw the PV and TS diagram with proper label of points when required. 4. An ideal Brayton Cycle has air at 100kPc. and 25C entering the compresser After the heating process, the air has a max temperature of 870 C, and the pressure is 10 times of the initial pressure Draw the PV and TS diagrams, find the QA. WT. Wc, Whet, and efficiency.
An air-standard Compression Ignition cycle has a compression ratio of 18.2. Air is at 32000R at the end of the heat addition process. Neglecting the variation of specific heats with temperature,determine the following:a. Cut-off ratiob. Net output work of the cyclec. Heat rejection per unit mass, Btu/lbd. Thermal efficiency of the cycle(%). Compare this efficiency value if the cycle has to run on an airstandard Carnot Cycle.
Combustion Engineering 4 decimal places

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