In an engine working on Dual cycle, the temperature and pressure at the beginning of the cycle are 90°C and 1 bar respectively. The compression ratio is 9. The maximum pressure is limited to 68 bar and total heat supplied per kg of air is 1750 kJ. Determine: (i) Pressure and temperatures at all salient points (ii) Air standard efficiency (iii) Mean effective pressure.

In an engine working on Dual cycle, the temperature and pressure at the beginning of the cycle are 90°C and 1 bar respectively. The compression ratio is 9. The maximum pressure is limited to 68 bar and total heat supplied per kg of air is 1750 kJ. Determine: (i) Pressure and temperatures at all salient points (ii) Air standard efficiency (iii) Mean effective pressure.

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: Air enters the compressor of an ideal air-standard Brayton cycle at P1-98 kPa and T1-320 K, with a…

A: Ans Given Now calculate the mass flow rate of the fluid asNow process 1-2 is isentropic process…

Q: QI/ An Otto cycle engine has Pressure at the beginning of compression is 1 bar and pressure at the…

Q: A cold air-standard Otto cycle has a compression ratio of 9 and the temperature and pressure at the…

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

A: Given:n=1.3r=12P1=1 barT1=300 KV1=2270 cm3T3=2000 K

Q: ) the maximum temperature of the cycle, in K. ) the net work, in kJ/kg. ) the percent thermal…

A: Given: Otto cycle P1=1 bar T1=300 K Qin=1400 kJ/kg Compression ratio=3.5 To determine:

Q: Air enters the compressor of an ideal air-standard Brayton cycle at 158 kPa, 340 K, with a…

Q: A cold air-standard Otto cycle has a compression ratio of 12 and the temperature and pressure at the…

A: Given data: r=12p1=14.2 lbf/in2T1=520°RQ=400 Btu/lb Need to determine the the maximum temperature,…

Q: Consider an air-standard Diesel cycle. Operating data at principal states in the cycle are given in…

Q: The compression ratio of an air-standard dual cycle is 10:1, it begins at 120 kPa and 300 K, and the…

Q: Air enters the compressor of an ideal air-standard Brayton cycle at 83 kPa, 329 K, with a volumetric…

A: Given Flow rate, Q = 4.9 m3/s Temperature, T1 = 329 K Pressure, P1…

Q: Air enters the compressor of an ideal air-standard Brayton cycle at 118 kPa, 329 K, with a…

A: Find effiecency of the brayton cycle.

Q: Required information Problem 09.015 - 3-Step Air-Standard Cycle with Constant Specific Heats -…

Q: only need help with letter (d). At the beginning of the compression process of an air-standard…

Q: Air enters an air - standard Otto cycle with a pressure and temperature of 1 bar and 15"…

Q: Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 285 K, with a…

Q: The pressure and temperature at the beginning of compression of an air-standard Diesel cycle are 90…

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

A: ● All of the above options are not matching. The Right answer is 1.36 kJ ( This solution is RIGHT to…

Q: At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300…

Q: At the beginning of the compression process of an air-standard diesel cycle, air is at 107 kPa and…

Q: At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300…

Q: At the beginning of the compression process in an air standard dual cycle, P1 = 1 bar and T1 = 300…

A: P1=1 bar =100kPaT1=300KQin=1000 kjkgCompression ratior range 10 to 20 so lets assume r=15…

Q: Determine: (a) the cutoff ratio. (b) the heat addition per unit mass, in kJ/kg. (c) the net work…

Q: If the higher and lower temperature limit of the Carnot cycle is 250°C and 20°C, determine the work…

Q: An engine works on an Otto cycle. It has a compression ratio of 10.5, and the intake conditions of…

A: Otto cycle P1= 1 bar T1 = 28 C qin = 900 kJ/kg Find: 1) Air standard efficiency 2) Mean effective…

Q: An engine working on Otto cycle has a volume of 0.5 m³, pressure 1 bar and temperature 27°C at the…

A: P-V diagram of otto-cycle:- T-S…

Q: 1. A power plant working on an ideal Brayton cycle has a pressure ratio of 8. The gas temperature is…

A: Brayton cycle used in gas power plant is a type of power producing device having 4-processes…

Q: The following data belong to a Diesel cycle : Compression ratio = 19 :1; Heat added = 2500 kJ/kg ;…

A: given data- compression ratio r = 19 heat added = 2500 kJ/kg P1 = 1 bar , T1 =27 deg C = 300 K…

Q: An engine is working on Otto cycle with the following specifications: Pressure and temperature of…

Q: A cold air-standard Otto cycle has a compression ratio of 12 and the temperature and pressure at the…

A: As per bartleby guidelines we are allowed to solve only 1st 3 subparts if multiple subparts are…

Q: Draw the graph of Otto air standard cycle and prove that the thermal efficiency is equal to: Motto =…

Q: An air-standard cycle consists of the following processes (i) isentropic compression from 15°C, 1.01…

A: Note: Only First Part Has Been Solved.You have posted to many question and we are bound to answer…

Q: (a) the net work of the cycle, in kJ. (b) the percent thermal efficiency. (c) the mean effective…

Q: At the beginning of the compression process of an air standard Otto cycle, p1 = 1 bar, T1 = 300 K.…

A: given data; ⇒initial temperature (T1)=300K⇒initial…

Q: At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300…

Q: The rate of heat addition to an ideal air-standard Brayton cycle is 1.0 x 107 Btu/h. The pressure…

A: Brayton Cycle works in the Gas Power Plant having 4-components i.e., Compressor, Combustion…

Q: At the beginning of the compression process of an air—standard Diesel cycle operating with a…

A: Here, given data: T1 = 300 KP1 = 0.1 MPar = 18 = V1V2ρ = 2 = V3V2 For air, γ = 1.4Cp = 1.005 kJ/kg K…

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

9. In an engine working on Dual cycle, the temperature and pressure at the
beginning of the cycle are 90°C and 1 bar respectively. The compression ratio
is 9. The maximum pressure is limited to 68 bar and total heat supplied per kg
of air is 1750 kJ.
Determine:
(i) Pressure and temperatures at all salient points
(ii) Air standard efficiency
(iii) Mean effective pressure.

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Given

Solution

Page 2

Page 3

Page 4

Page 5

Trending now

This is a popular solution!

Step by step

Solved in 6 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

THERMODYNAMICS Consider an air-standard Otto cycle with a heat addition of 800 Btu/bm of air, a compression ratio of 7, and a pressure and temperature at the start of the compression process of 13 lbf/in2, 50 F to simulate an actual spark-ignition engine. Determine the maximum pressure and temperature of the cycle, the thermal efficiency of the cycle, and the mean effective pressure assuming the variation of specific heat with the value from table A-19E Show Complete solution on a paper.
The state at the beginning of compression of an air-standard Diesel cycle is fixed by p₁ = 100 kPa and T₁ = 310 K. The compression ratio is 18 and the cutoff ratio is 1.9. Determine: (a) the maximum temperature, in K. (b) the pressure at the end of the expansion, in kPa. (c) the net work per unit mass of air, in kJ/kg. (d) the percent thermal efficiency.
In an Otto cycle, the volume at the beginning of the isentropic compression is 0.74 L. If the displaced volume of the cycle is 0.68 L, the specific heat ratio is γ=1.3 and the work done is 455.6 kJ/kg, the heat rejected in kJ per kg of air is: Select one: a. 124.5 b. 521.4 c. 705.2 d. 405.0
In an Otto cycle, the volume at the beginning of the isentropic compression is 0.8 L. If the displaced volume of the cycle is 0.72 L, the specific heat ratio is γ=1.32 and the work done is 455 kJ/kg, the heat rejected in kJ per kg of air is: Select one: a. 417.7 b. 124.5 c. 521.4 d. 705.2
Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 314 K, with a volumetric flow rate of 5 m3/s. The compressor pressure ratio is 9:1. The turbine inlet temperature is 1400 K. Take Specific heat at constant pressure and constant volume for air as 1.006 kJ/kg K and 0.717 kJ/kg K respectively. Calculate the compressor exit absolute temperature to one decimal place and place the correct unit. Use the cold air-standard assumption.
Air enters the compressor of an ideal air-standard Brayton cycle at 80 kPa, 299 K, with a volumetric flow rate of 6.1 m3/s. The compressor pressure ratio is 7. The turbine inlet temperature is 1886 K. Adopting the cold air-standard assumption, calculate: the mass flow rate of air to 3 d.p. in SI unit and privide unit symbol. Take the gas constant as 289 J/kg.K
At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300 K. The compression ratio is 8.5 and the heat addition per unit mass of air is 1400 kJ/kg.Determine:(a) the maximum temperature of the cycle, in K.(b) the net work, in kJ/kg.(c) the percent thermal efficiency of the cycle.(d) the mean effective pressure, in kPa.
The pressure and temperature at the beginning of compression of a cold air-standard Diesel cycle are 90 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 7.2 MPa and the temperature is 2250 K. Assume constant specific heats evaluated at 300 K. Determine the mean effective pressure, in kPa.
At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300 K. The compression ratio is 3.5 and the heat addition per unit mass of air is 1300 kJ/kg. Determine: (a) the maximum temperature of the cycle, in K. (b) the net work, in kJ/kg. (c) the percent thermal efficiency of the cycle. (d) the mean effective pressure, in kPa.
Lol is this the correct answer you gave me? Guess not, please help me out what is the correct answer?
A compression ratio of 18:1 is utilized in the functioning of an air-standard dual cycle. The temperature is 298 degrees Kelvin, there is 1 bar of pressure, and the volume is 4 liters. The total amount of heat that is added is 6.3 kJ, of which only 30% is added while maintaining a constant volume and the remaining 60% is added while maintaining a constant pressure. What is the temperature after the constant pressure heat addition process in Kelvin?