#tittle thrumo , ES 347 - Thermodynamics Project Assigned: 3/28/2013 Due: 4/25/2013, Mechanical Engineering

#tittle thrumo , Mechanical Engineering

Assignment Help:

ES 347 - Thermodynamics Project
Assigned: 3/28/2013
Due: 4/25/2013
Problem specification
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, through a polytropic process, with variable values of n, to a final specific volume of 0.30m3/kg.
Objective:
Write a MATLAB code to solve for the pressure and temperature variation throughout the expansion process and to calculate the work and heat produced in the processes for variable values of n.
Procedure:
1. Begin by defining the temperature at the initial state and then define the temperature and
pressure at the final state. Sketch a rough graph of what the process looks like on P-v coordinates. Write out by hand the equations and steps you would take to determine the actual P, T, and v at all points along the process. Identify unknowns, equations, constants, and calculation orders.
2. Using your hand calculations as a guide, write a simple MATLAB m-file to calculate the properties at points along the process (minimum of 20 points, but should be a variable that can be changed) using one of the values of n (I recommend using n=1.5). Plot P-v and T-v diagrams for the process using MATLAB.
3. Calculate the work performed for the process by integrating the curve of pressure versus specific volume. Use the “trapezoidal area method” for calculating the integral.
4. Assume that the specific internal energy for the air in this problem can be defined as a function of temperature as follows:
??(??) = (1.0344 * 10-4) * ??2 + (6.4476 * 10-1) * ?? + (1.3727 * 102)
Add code to your MATLAB program to calculate 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 calculated, determine the amount of heat
transferred for each process.
6. Write a loop in the code to analyze the different values of n, or run the code for the different
values of n asked for below.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages

#tittle thrumo , Mechanical Engineering

Related Discussions:- #tittle thrumo

Jigs and fixtures, Face plate turning fixtures

Communication, is effective commucation an intergral aspect in the mecheni...

Define the abrasive jet cutting machines, Define the Abrasive Jet Cutting M...

Ventilation fan belt assembly, The aim of this assignment is for the studen...

Define external broaching - types of broaching, Define External Broaching -...

.VIABRATIONS, WHAT IS DAMP VIBRATION FACE ANGLE SIMPLE HARMONIC MOTION NAT...

Calculate additional force required to maintain equilibrium, Calculate Addi...

What is data unification, What is Data Unification To optimize the UPR ...

Gantry crane, A gantry crane shown in figure above acts an auxiliary to...

General factors behind accidents , GENERAL FACTORS BEHIND ACCIDENT: Follow...

Write Your Message!

Featured Services

Online Tutoring

Project Development

Exam Preparation

Course Help

Assignment Help

Popular Subjects

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT