ENGR 210 Introduction to Thermodynamics
Course Description: Introduces thermodynamics from a classical point of view. Covers work, heat, entropy, thermodynamic properties, equations of state, and first and second law analysis of closed systems, control vo

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ENGR 210 Introduction to Thermodynamics Exam 1 1 Feb 11 55 minutes
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DREXEL UNIVERSITY - ENGR 202-065
Beam Design
Lab 1&2 Report
Jeff Eckert, Raj Patel, Sabrina Villanti
1/20/2011
Introduction
The main objectives of the labs were to build a beam within limited dimensions using the
computer analysis spreadsheet made using E

1. How does Duska characterize whistleblowing? How does it fit into his overall view
of loyalty?
RonaldDuskacharacterizewhistleblowingbyarguingthatblowingthewhistleisgood
thingaswedontoweanyloyaltytothecompany.
Employeesshouldbeloyaltothecompanyunlessthey

ENGR 232 Dynamical Engineering
Winter 2011
Practice Problems for Exam 2
Solution
Exam I will cover sections 2.2, 2.3, 2.4, 2.5, 3.1 and 3.2, in the text.
The material is the same as the problems on the homework assignments 3, 4, 5.
Section 2.2. Solve the

Results and Discussions
In this lab, a prototype weighing scale was designed, fabricated, and tested by analyzing
the strength and deflection of a beam, which was successfully accomplished. Figure 1
indicates an ABS-plus beam deflection, where the deflect

1) Consider a piston cylinder arrangement as shown in the below figure. The piston is loaded with
mass, , the outside atmosphere 0 , a linear spring and a single point force 1 . The piston is
restricted in its motion by lower and upper stops trapping the

Homework set 4
a) What is the difference between saturated liquid and compressed
liquid?
b) What is the difference between saturated vapor and superheated
vapor?
c) If the pressure of a substance is increased during a boiling process,
will the temperature

ENTROPY-HOMEWORK
1.
2.
3.
A rigid tank contains an ideal gas at 40C that is being stirred by a paddle wheel. The paddle wheel does 200 kJ
of work on the ideal gas. It is observed that the temperature of the ideal gas remains constant during this process
a

Homework Set-2
1. Consider the process of heating water on top of an electric range. What are the forms of
energy involved during this process? What are the energy transformations that take place?
Inelectricheaters,electricalenergyisconvertedtosensibleint

Beam Calibration
ENGR 202-069
Zachary Hawkins
Yu-Chung Chau
Evan Dimmerling
February 4, 2010
ABSTRACT
In these two labs we measured the beam using both the mechanical and electrical system,
respectively. The mechanical system utilized a dial gauge while t

Evaluation and Presentation of Experimental
Data II
Lab 3&4: Calibration
Lab Date: July 15 & 22, 2010 (07/15 & 22/10)
Presented By:
Michael Sohanic, Antony Kiptoo, Riddhiman Yadava, Omer Hashmi
Lab Section 069
Abstract
This report concentrates upon creati

Introduction
This lab was designed to create a familiarity among students with new ways of using
technology as a way to perform research experiments. The goal of the lab session was to
understand and practice a method for taking measurements that can be u

Introduction
The objective of this lab was to build a weighing scale with accuracy, precision and
within certain range of uncertainty. The project involves electric and mechanical calibration of an
ABS beam, manufactured using a 3-D Printer, by using Stra

1
Abstract
Over several weeks of set up and gathering experimental data to determine the strain
gauge calibration curve to go from volts to mass, a LabVIEW VI was created. The equation for
the calibration curve produced a linear relation, indicating that

1
Abstract
Over several weeks of set up and gathering experimental data to determine the strain
gauge calibration curve to go from volts to mass, a LabVIEW VI was created. The equation for
the calibration curve produced a linear relation, indicating that

In this lab, a prototype weighing scale was designed, fabricated, and tested by analyzing the
strength and deflection of a beam. Figure 1 indicates an ABS-plus beam deflection, where the
deflection of the beam was determined by the strain gage taken at di

Experimental Program:
The group began by calculating the optimal dimensions of the beam. Many variables
were considered such as Youngs modulus, Max Stress, and Max Tension. The team designed the
beam in the program ProEngineering, and then made the beam u

Introduction
The objective of this lab was to build a weighing scale with accuracy, precision and
within certain range of uncertainty. The project basically involves electric and mechanical
calibration of an ABS beam, manufactured using a 3-D Printer, by

1-Assumptions The gas in the tank is given to be an ideal gas.
Analysis The temperature and the specific volume of the gas remain constant IDEAL GAS
during this process. Therefore, the initial and the final states of the gas are the
40C
same. Then s2 = s1

Homework 5
A blower handles 1 kg/s of air at 20C and consumes a power of 15 kW. The inlet
and outlet velocities of air are 100 m/s and 150 m/s respectively. Find the exit air
temperature, assuming adiabatic conditions. Take cp of air is 1.005 kJ/kg-K. (An

ENGR 210 winter 2015—2016 Thermodynamics |
Namezfgmm—u—gQ- W Lecture time (12.01.00) (1.00-2.00)
+3 lo: meeakm Yedﬁaldm‘.
Two clowns work as entertainers before basketball games. Their entertainment scheme goes as follows:
Clown Ijumps from a high podium

SOLUTION HOME WORK SECOND LA W
I-Assumptions 1 The plant operates steadily. 2 Heat losses from the working uid at the pipes
and other components are negligible.
Analysis The rate of heat supply to the power plant is determined from the thermal efciency
re

3-Analysis (a) This is a reversible isothermal process, and the entropy
change during such a process is given by
Q 3
AS=~
T
Noting that heat transferred from the working uid is equal to the heat
transferred to the sink, the heat transfer become
Quid = Tl

5-2133me 1 Both the water and the iron block are incompressible substances with constant specic heats at room
temperature. 2 Kinetic and potential energies are negligible.
We: The specic heats of iron and copper at room temperature are cm = 0.45 kJ/kg.C a

Homework 5
A blower handles 1 kg/s of air at 20C and consumes a power of 15 kW. The inlet and outlet velocities of
air are 100 m/s and 150 m/s respectively. Find the exit air temperature, assuming adiabatic conditions.
Take 0; of air is 1.005 kJ/kgK. (Sin

Q = W" = 300 W = 937 5 MW
m, 0.32
Q, = QinAt = (937.5 MJ/s)(24 x 3600 s) = 8.1x107 M1
The amount and rate of coal consumed during this period are
. 7
mm =QA=W=2393X105 kg
411v 28MJ/kg
, mcoal 2.893x10" kg
m =-=33.48k s
1 At 24x3600s g]
(b) Noting that

cop =_- _ _
R W lkW 3600kJ/h
neLin
QL 5040kJ/h( IkW ]_14
The rate of heat rejection to the surrounding air, per kW of power
consumed, is determined from the energy balance,
Q: QL+ an =(5040kJ/h)+(1><3600 kJ/h)=8640kJ/h

1-Assumptions The gas in the tank is given to be an ideal gas.
Analysis The temperature and the specic volume of the gas remain constant
during this process. Therefore, the initial and the nal states of the gas are the
same. Then sZ = 51 since entropy is