L ABORATORY AE308 P ROF S EUNG W OOK B AEK D EPARTMENT of A EROSPACE E NGINEERING KAIST IN KOREA R OOM Building N72 3304 T ELEPHONE 3714 MOBILE ID: 716540
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Slide1
AEROSPACE ENGINEERING LABORATORY (AE308)
P
ROF
.
S
EUNG
W
OOK
B
AEK
D
EPARTMENT
of A
EROSPACE
E
NGINEERING
, KAIST,
IN
KOREA
R
OOM
: Building N7-2 #3304
T
ELEPHONE
: 3714
MOBILE
:
010-5302-5934
swbaek@kaist.ac.kr
http://procom.kaist.ac.kr
T
A
:
Donggi
Lee
R
OOM
: Building N7-2 #1304
T
ELEPHONE
: 5754
MOBILE
:
010-8504-5841
kingdonggi
@kaist.ac.krSlide2
Contents
A. Objective
B. NecessityC. Background
Measurement of Heat Release usingBomb CalorimeterSlide3
Objective
Purpose of Experiment
Measurement of the calorific value of reactants
Measurement !!Slide4
Necessity
Bomb Calorimeter
In combustion processSlide5
Necessity
Heat Transfer
The process of reaching
thermodynamic equilibriumSlide6
Necessity
Predicting Unknown Substances
By experiments (Calorimeter)
- Fuel testing
- Propellant
and explosive testing
Products
Known
UnknownSlide7
Background
The First Law of Thermodynamics
“ Energy can be neither created nor destroyed
during a process
; it can only change forms”
Energy is conserved in any chemical reaction.
where
= heat added to system(positive)
=
internal energy
= work
done by
system
Slide8
Background
Closed System
( internal combustion engine, etc.)
For constant
v
olume process
(
)
»
Internal energy change
Slide9
Background
Open System
( pump, turbine, compressor etc.)
For constant pressure process
(
)
»
Enthalpy change
Slide10
Background
Calorimetry
The measurement of heat is generated (
exothermic process) or consumed (
endothermic process
) during a chemical reaction or event involving heat transfer.Slide11
Background
Calorimeter
In many cases, the study of heat exchange is measured with an apparatus called a calorimeter.