Explanation Show the given diesel cycle on P − v diagram as in Figure (1). Write the expression of temperature and specific volume relation for the isentropic compression process 1-2. T 2 = T 1 ( v 1 v 2 ) k − 1 (I) Here, the temperature at state 1 is T 1 , the temperature at state 2 is T 2 , specific volume at state 1 is v 1 , specific volume at state 2 is v 2 , and the specific heat ratio is k . Write the expression of temperature, pressure, and specific volume relation for the constant pressure heat addition process 2-3. P 3 ν 3 T 3 = P 2 ν 2 T 2 ν 3 T 3 = ν 2 T 2 T 3 = ν 3 ν 2 T 2 (II) As pressure remains constant for process 2-3, P 2 and P 3 are equal. Here, the temperature at state 3 is T 3 , specific volume at state 2 is v 2 , specific volume at state 3 is v 3 , pressure at state 3 is P 3 , pressure at state 2 is P 2 , and temperature at state 2 is T 2 . Write the expression of thermal efficiency of the diesel cycle ( η t h ) . η t h = 1 − 1 r k − 1 r c k − 1 k ( r − 1 ) (III) Here, the compression ratio is r , and cutoff ratio is r c . Write the expression of rate of heat addition for the given diesel cycle ( Q ˙ in ) . Q ˙ in = W ˙ net η th (IV) Here, the net work done by the cycle is W ˙ net

9th Edition

ISBN: 9781259822674

Author: Yunus A. Cengel Dr., Michael A. Boles

Publisher: McGraw-Hill Education

See similar textbooks

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 ener…

Question

Chapter 9.12, Problem 50P

To determine

The maximum temperature of the air and the rate of heat addition for the given diesel cycle.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 9.12, Problem 49P

Chapter 9.12, Problem 51P

Students have asked these similar questions

Calculate for the vertical cross section moment of inertia for both Orientations 1 and 2 of a 1 x 1.5 in. horizontal hollow rectangular beam with wall thickness of t = 0.0625 in. Use the equation: I = ((bh^3)/12) - (((b-2t)(h-2t)^3)/12)

Please answer 'yes' or 'no' and 'is' or 'is not' for the following:

Consider a large 23-cm-thick stainless steel plate (k = 15.1 W/m-K) in which heat is generated uniformly at a rate of 5 x 105 W/m³. Both sides of the plate are exposed to an environment at 30°C with a heat transfer coefficient of 60 W/m²K. The highest temperature will occur at surfaces of plate while the lowest temperature will occur at the midplane. Yes or No Yes No

Chapter 9 Solutions

Thermodynamics: An Engineering Approach

Ch. 9.12 - What are the air-standard assumptions?Ch. 9.12 - What is the difference between air-standard...Ch. 9.12 - Prob. 3P Ch. 9.12 - How does the thermal efficiency of an ideal cycle,...Ch. 9.12 - How are the combustion and exhaust processes...Ch. 9.12 - What does the area enclosed by the cycle represent...Ch. 9.12 - Prob. 7P Ch. 9.12 - Can the mean effective pressure of an automobile...Ch. 9.12 - What is the difference between spark-ignition and...Ch. 9.12 - Prob. 10P

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.

The maximum temperature of the air and the rate of heat addition for the given diesel cycle.

Solution Summary: The author explains the maximum temperature of the air and the rate of heat addition for the given diesel cycle.

Concept explainers

The maximum temperature of the air and the rate of heat addition for the given diesel cycle.

Want to see the full answer?

Chapter 9 Solutions