1
Introduction.
WHAT IS THERMAL SYSTEMS ENGINEERING?
The objective of this chapter is to introduce you to thermal systems engineering using several contemporary applications. Our discussions use certain terms that we assume are familiar from your b
Name: Lyc; JC M
Page U4
.9
ME 37203 Intro Fluid Thermo Eng Spring 2008
Test #3 (March 10, 08:05 08:55 am, open textbook only)
You do no! need rofollow any specific procedure. Use a handheld calculator.
Use margins to write down your derivatio
2
Introduction.
GETTING STARTED IN THERMODYNAMICS: INTRODUCTORY CONCEPTS AND DEFINITIONS
chapter objective
The word thermodynamics stems from the Greek words therme (heat) and dynamis (force). Although various aspects of what is now known as therm
ME 3720, Fall 2006
Solutions for Homework #3
1. Air is compressed adiabatically from P1 = 100 kPa, T1 = 300 K to P2 = 1.5 MPa,
v2 = 0.1227 m3/kg. The air is then cooled at constant volume to T3 = 300 K.
Assuming ideal gas behavior, and ignoring kinetic an
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A well-insulated rigid tank contains 5 kg of a saturated liquid-vapor mixture of water at 100 kPa.
Initially, three-quarters of the mass is in the liquid phase. An electric resistor placed
ME 3720
Homework Assignment #1
Due September 1, 2006
USE PROPER FORMAT
(See Page 13)
1.
Consider a classroom that is losing heat to the outdoors at a rate of 20,000
kJ/h. If there are 30 students in class, each dissipating heat at a rate of 100 W,
determi
ME 3720 SECTION B EXAMINATION #2-A
March 31, 2011
1 Hours
You may bring into the exam one 8-1/2 x 11 sheet of paper and a calculator. Show all of
your work. Write clearly and box your answers. Start each problem on a new sheet of
paper. Put your name on e
ME 3720 B EXAMINATION #1-A
February 24, 2011
1 1/2 Hours
You may bring into the exam one 8-1/2 x 11 sheet of paper and a calculator. Show all of your work.
Write clearly and box your answers. Start each problem on a new sheet of paper. Put your name on
ev
ME 3720 B FINAL EXAM B
May 5, 2011
3 Hours
You may bring into the exam three 8-1/2 x 11 sheets of paper and a calculator. Show all of your
work. Write clearly and box your answers. Start each problem on a new sheet of paper. Put
your name on every sheet y
ME 3720 B FINAL EXAM A
May 5, 2011
3 Hours
You may bring into the exam three 8-1/2 x 11 sheets of paper and a calculator. Show all of your
work. Write clearly and box your answers. Start each problem on a new sheet of paper. Put
your name on every sheet y
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Question 1. A piston-cylinder device contains 0.8 kg of steam at 300C and 1MPa. Steam is
cooled at constant pressure until one half of the mass condenses.
Before calculating values, it migh
ME 3720 Fall 2006
HW 4 Solutions
1.
Refrigerant 134a enters a heat exchanger in a steady state refrigeration system
as saturated vapor at 0 F and exits at 20 F with no change in pressure. A
separate liquid stream of Refrigerant 134a passes in counterflow
ME 3720
Fall 2006
Homework #2 Solution
Due 9/8/06
Use proper format, please, except as noted below.
Here each problem is worth 2 points as they are a bit long.
Fill in the following table for R-134a.
1.
NOTE: You do not need to follow the format for this
ME3720B Fall 2004 Quiz 4 - September 22, 2004
Danny Nguyen gtg570b
Question 1. Steam enters an adiabatic turbine at 600C and 6 MPa at a velocity of 80 m/s and
leaves at 50 kPa at a velocity of 140 m/s. The power output of the turbine is 8 MW. (7-97)
From
ME 3720B - Fall 2004 - Quiz 12 - November 17, 2004
Danny Nguyen - gtg570b
A 30cm 30cm circuit board that contains 121 square chips on one side is to be cooled by
combined natural and radiation by mounting it on a horizontal surface in a room at 25 C.
Each
ME3720B Fall 2004 Quiz 7 - October 13, 2004
Danny Nguyen gtg570b
(1) A 12-cm by 18-cm circuit board houses on its surface 100 closely spaced logic chips, each
dissipating 0.07 W in an environment of 40C. The heat transferred from the back surface of
the b
HW#10 Solution
20.16, 20.19E, 20.21, 20.26, 20.30
20-16 A horizontal hot water pipe passes through a large room. The rate of heat loss from the pipe by
natural convection and radiation is to be determined.
Assumptions 1 Steady operating conditions exist.
HW Set 5: (Due June 23rd): 7.24, 7.28E, 7.32, 7.37E, 8.26C, 8.31C, 8.65
7-24 A rigid tank contains an ideal gas that is being stirred by a paddle wheel. The temperature of the gas
remains constant as a result of heat transfer out. The entropy change of th
HW4: 6.21, 6.32, 6.51, 6.59, 6.98, 6.118
6-21 The power output and fuel consumption rate of a car engine are given. The
efficiency of the engine is to be determined.
Assumptions The car operates steadily.
Properties The heating value of the fuel is given
ME 3720 Fall 2006
Homework 9 Solutions
16-23 Heat is transferred steadily to boiling water in the pan through its bottom. The inner surface of the
bottom of the pan is given. The temperature of the outer surface is to be determined.
Assumptions 1 Steady o
ME3720B Fall 2004 Quiz 6 - October 6, 2004
Danny Nguyen gtg570b
(1) The heat generated in the circuitry on the surface of a silicon chip (k = 130 W/(mC) is
conducted to the ceramic substrate to which it is attached. The chip is 6-mm x 6-mm in size
and 0.5
ME 3720 A Fall 2011
Homework I Solutions
CH 5: 12, 25, 34, 46 & 56; CH 6: 14 & 32
ME 3720 A Fall 2011
Homework I Solutions
CH 5: 12, 25, 34, 46 & 56; CH 6: 14 & 32
ME 3720 A Fall 2011
Homework I Solutions
CH 5: 12, 25, 34, 46 & 56; CH 6: 14 & 32
ME 3720 A
ME 3720 A Fall 2011
Homework I Solutions
CH 3: 31, 41, 49, 50 & 54 ; CH 4: 2 (a - d)
ME 3720 A Fall 2011
Homework I Solutions
CH 3: 31, 41, 49, 50 & 54 ; CH 4: 2 (a - d)
ME 3720 A Fall 2011
Homework I Solutions
CH 3: 31, 41, 49, 50 & 54 ; CH 4: 2 (a - d)