Adiabatic expansion to V₁. ● Constant volume heat rejection back to P₁, T₁ to complete the cycle. The gas in the cylinder has the following fixed values of the specific heats; Cp = 1004.0J/kg. K, and C₂ = = 717 J/kg K. Perform the following analysis: . a. Calculate pressure, temperature, and volume at each state point and enter in a table like the one below. b. Make a sketch of the cycle on a P-V diagram. Label the cycle state points. c. What is the value of the cutoff ratio for this cycle? d. Find the amount of heat added per cycle, Qin. e. Find the net work produced per cycle, Wnet. f. Find the cycle efficiency, Diesel. Cycle State Point 1 2 3 4 Volume, V (liters) 1.0 Temperature, T (Kelvin) 300.0 Pressure, P (kPa) 100.0

Adiabatic expansion to V₁. ● Constant volume heat rejection back to P₁, T₁ to complete the cycle. The gas in the cylinder has the following fixed values of the specific heats; Cp = 1004.0J/kg. K, and C₂ = = 717 J/kg K. Perform the following analysis: . a. Calculate pressure, temperature, and volume at each state point and enter in a table like the one below. b. Make a sketch of the cycle on a P-V diagram. Label the cycle state points. c. What is the value of the cutoff ratio for this cycle? d. Find the amount of heat added per cycle, Qin. e. Find the net work produced per cycle, Wnet. f. Find the cycle efficiency, Diesel. Cycle State Point 1 2 3 4 Volume, V (liters) 1.0 Temperature, T (Kelvin) 300.0 Pressure, P (kPa) 100.0

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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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

Problem 4: An engine operating on an ideal Diesel cycle has a cylinder volume when the piston is at
bottom-dead-center (BDC), V₁
1 liter = 0.001 m³. The intake pressure and temperature are P₁ =
300 K. The engine cycle contains the following processes:
100 kPa and T₁ =
Adiabatic compression to V₁/24.
Constant pressure heating to V₁/14.
=

Adiabatic expansion to V₁.
Constant volume heat rejection back to P₁, T₁ to complete the cycle.
.
The gas in the cylinder has the following fixed values of the specific heats; Cp = 1004.0J/kg · K, and
C₂ = 717 J/kg. K. Perform the following analysis:
a. Calculate pressure, temperature, and volume at each state point and enter in a table like the one
below.
b. Make a sketch of the cycle on a P-V diagram. Label the cycle state points.
c. What is the value of the cutoff ratio for this cycle?
d. Find the amount of heat added per cycle, Qin.
e. Find the net work produced per cycle, Wnet.
f. Find the cycle efficiency, Diesel.
Cycle State
Point
1
2
3
4
Volume, V
(liters)
1.0
Temperature, T
(Kelvin)
300.0
Pressure, P
(kPa)
100.0

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