Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

problem: 5 kg of air is contained in a piston-cylinder device, initially at a pressure of 2MPa and a specific volume of 0.08m3/kg. The air then expands, as an ideal gas, via a polytrophic process, with variable values of n, to a final specific volume of 0.30m3/kg.

Objective: prepare down a MATLAB code to resolve for the pressure and temperature variation all through the expansion process and to compute the work and heat produced in the processes for variable values of n.

Procedure:

1) Start by defining the temperature at initial state and then define the temperature and pressure at final state. Sketch a rough graph of what the procedure looks like on P-v coordinates. prepare out by hand the equations and steps you would take to find out the actual P, T, and v at all points along the process. Recognize unknowns, equations, constants and computation orders.

2) By using your hand computations as a guide, prepare a simple MATLAB m-file to compute the properties at points all along the process (minimum of 20 points, but must be a variable that can be modified) using one of the values of n (I recommend using n =1.5). Plot P-v and T-v diagrams for the process by using MATLAB.

3) Compute the work performed for the process through integrating the curve of pressure versus specific volume. Use the “trapezoidal area method” for computing the integral.

4) Suppose that the specific internal energy for the air in this problem can be defined as a function of temperature as given:

u(T) = (1.0344 ∗ 10−4) ∗ T2 + (6.4476 ∗ 10−1) ∗ T + (1.3727 ∗ 102)

Add code to your MATLAB program to find out the specific internal energy for the process using the information of the pressure and specific volume at each state.

5) Using conservation of energy and the work find outd, determine the amount of heat transferred for each process.

6) prepare a loop in the code to analyze the different values of n, or run the code for the different values of n.

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M9147

Have any Question? 


Related Questions in Mechanical Engineering

The wrong size bolts were used to connect the flanges in

The wrong size bolts were used to connect the flanges in Problem 5.8, and when the torque is applied to flange B it rotates by 2 degrees (twisting shaft AB) before engaging flange C. Once flange C is engaged both B and C ...

A rigid vessel of volume 0400 m3 containing h2 at 2125degc

A rigid vessel of volume 0.400 m3 containing H2 at 21.25°C and a pressure of 715 X 10 3 Pa is connected to a second rigid vessel of volume 0.750 m 3 containing Ar at 30.15°C at a pressure of 203 X 10 3 Pa. A valve separa ...

Calculate the second-order correction to the energy for the

Calculate the second-order correction to the energy for the system described in Problem 6.4 and calculate the ground-state wavefunction. Account for the shape of the distortion caused by the perturbation.

Calculate the power factor of an electronic system subject

Calculate the power factor of an electronic system subject to a reasonable amount of harmonics given as THD(v) = 1.0%, the displacement factor is 0.92. What would be the calculated error if harmonic components were not t ...

Use castiglianos second theorem to determine the tip

Use Castigliano's second theorem to determine the tip deflection of this cantilever with a length L, a constant E I, and a linearly increasing load with a maximum force/length q0. Confirm your result using Table 9.1.

Invent a structure that can completely eliminate the narrow

Invent a structure that can completely eliminate the narrow gate effects. This is known as the fully recessed stepped oxide (FROSOX) whose sidewall oxide is thicker than the gate oxide and they are connected by a step or ...

Task to identify research and present in both written and

Task: To identify, research, and present (in both written and oral formats) a topic in engineering that is currently the focus of ongoing (within the past 5 years) research, investigation, and/or development.The topic mu ...

Rework given problem if the plates are circular and have

Rework given Problem. if the plates are circular and have radius L. Problem :- Two very long parallel plates of length 2L are separated a distance b. The upper plate moves downward at a constant rate V. A fluid fills the ...

It has been observed that the most effective way to crush

It has been observed that the most effective way to crush an empty aluminum beverage can is to apply an eccentric compressive load. Use buckling theory to explain this phenomenon. The can wall thickness is 80 μm, and the ...

Define a shear joint define an axial shear joint define

Define a shear joint? Define an axial shear joint? Define faying surface? Define friction-type joint? Define bearing-type joint? Draw a graph illustrating the way a shear joint fails? Is bolt preload important in a shear ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen