Consider an air-standard Diesel cycle. Operating data at principal states in the cycle are given in the table below. The states arenumbered as in the figure below.Determine:(a) the cutoff ratio.(b) the heat addition per unit mass, in kJ/kg.(c) the net work per unit mass, in kJ/kg.(d) the percent thermal efficiency.State T(K) p (kPa) u (kJ/kg) h (kJ/kg)1234S=C380 1001032 40741864950.6271.5786.24074250.2 716.71546b380.610822081989.5p=c3=0

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Answered: Consider an air-standard Diesel 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

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At the beginning of compression in an air-standard Diesel cycle, p1 = 96 kPa, V1 = 0.016 m3, and T1 = 290 K. The compression ratio is 15 and the maximum cycle temperature is 1290 K. Determine (a) the mass ofair, in kg. (b) the heat addition and heat rejection per cycle, each in kJ. (c) the net work, in kJ, and d) the thermal efficiency. (e) Solve the problem on a cold air-standard basis with constant specific heats.
In an air standard brayton cycle, air enters the compressor at 27 degree C and 100 kPa. The pressure ratio is 10, and the maximum allowable temperature is 1350 K. the compressor and turbine efficiencies are 85%, and pressure drops 27 kPa between the compressor discharge and turbine inlet. Determine the pressure and temperature at each state in the cycle, the compressor and turbine work, and the cycle thermal efficiency. Please show the PV and TS diagram. Please show complete formulas and solutions.
Consider a cold air-standard Diesel cycle. Operating data at principal states in the cycle are given in the table below. The states are numbered as in Fig. 9.5 with p1 = 100 kPa, T1 = 340 K, and T3 = 4850.3 K, r = 15 and rc = 2. For n = 1.3, cv = 0.718 kJ/(kg-K), and cp = 1.005 kJ/(kg-K), a.) determine T2 in deg-C. b.) determine p2 in bar. c.) T4 in deg-C. d.) the mean effective pressure in kPa, for the modified cycle. e.) the heat transfer during heat addition process per unit mass in kJ/kg.
Consider a cold air-standard Diesel cycle. Operating data at principal states in the cycle are given in the table below. The states are numbered as in Fig. 9.5 with p1 = 100 kPa, T1 = 340 K, and T3 = 4850.3 K, r = 12 and rc = 2. For n = 1.3, cv = 0.718 kJ/(kg-K), and cp = 1.005 kJ/(kg-K), determine p2 in kPa.
Air enters the compressor of an ideal air-standard Brayton cycle at 110 kPa, 289 K, with a volumetric flow rate of 5 m3/s. The compressor pressure ratio is 12:1. The turbine inlet temperature is 1567 K. Take the gas constant as 289 J/kg.K and Specific heat at constant pressure and constant volume for air as 1.004 kJ/kg K and 0.708 kJ/kg K respectively. Calculate the net power developed to two decimal places and include the correct SI unit symbol.
Given a Brayton cycle, with a pressure ratio equivalent to 12, as shown in the figure, determine its thermal efficiency, in %. Use simplified standard cold air assumption method.
3The rate of heat addition to an ideal air-standard Brayton cycle is 1.0 x 107 Btu/h. The pressure ratio for the cycle is 12 and the minimum and maximum temperatures are 520°R and 2800°R, respectively.Determine:(a) the percent thermal efficiency of the cycle.(b) the mass flow rate of air, in lb/h.(c) the net power developed by the cycle, in hp.
At the beginning of the compression process in an air standard dual cycle, P1 = 1 bar and T1 = 300 K. Qin is 1000 kJ/kg.Consider compression ratio ranging from 10 to 20. Determine v1 and v2
Essay Topic: Define the following terms related to reciprocating engines: cycle, stroke, bore, clearance volume, volume displacement, clearance percentage, compression ratio, cut-off ratio, pressure ratio, and thermal efficiency.
Consider an ideal Brayton cycle of air where the pressure ratio ñ across the compressor is equal to 5 and the air temperature at the turbine inlet is 900 °C. If the pressure and temperature of the air ambient are equal to 1 bar and 40 °C, respectively a) Determine the pressure, temperature and specific volume in the different states of the cycle. b) Calculate the work per unit mass developed by the turbine. e) Determine the work per unit mass required by the compressor. d) Calculate the net work per unit mass developed by the gas turbine. e) Determine the thermal efficiency of the cycle.
9.1 An air-standard Otto cycle has a compression ratio of 8.5. Atthe beginning of compression, p1= 100 kPa and T1 = 300 K.The heat addition per unit mass of air is 1400 kJ/kg. Determine(a) the net work, in kJ per kg of air.(b) the thermal efficiency of the cycle.(c) the mean effective pressure, in kPa.(d) the maximum temperature in the cycle, in K. 9.2 Solve Problem 9.1 on a cold air-standard basis with specificheats evaluated at 300 K. 9.3 At the beginning of the compression process of an air standard Ottocycle, p1 1 bar, T1 290 K, V1 400 cm3. The maximum temperature in the cycle is 2200 K and the compression ratio is 8. Determine(a) the heat addition, in kJ.(b) the net work, in kJ.(c) the thermal efficiency.(d) the mean effective pressure, in bar. 9.4 Solve Problem 9.3 on a cold air-standard basis with specific heatsevaluated at 300 K.
At the beginning of the compression process in an air standard dual cycle, P1 = 1 bar and T1 = 300 K. Qin is 1000 kJ/kg. Consider compression ratio ranging from 10 to 20. Determine T5 and P5

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