Thermodynamics - Experiment 1

JJ508
ENGINEERING
LABORATORY 3
THERMODYNAMICS 2
EXPERIMENT 1
HEAT TRANSFER 1

At the end of the lab session students should be able:
To understand the use of the Fourier Rate
Equation in determining rate of the heat flow
through solid material for one dimensional,
steady flow heat.
Experiment Outcome

i. Unit H110A
ii. Material Brass Intermediate Specimen
Apparatus/Equipment

 When operating or carrying out maintenance on the equipment
the Health and Safety of the students can be safeguarded in
many ways by wearing protective clothing.
 Loose fitting clothes should never be worn in a laboratory.
These clothes can cause a serious accident if caught in rotating
equipment. i.e. tie etc. Protective gloves must be used if
handling toxic materials or where there is a high temperature
present.
 Ear protectors should be worn when operating noisy
equipment.
 Eye protection should always be used when there is a risk to the
eyes.
Procedures

 Again following the above procedure ensure the cooling water
is flowing and then set the heater voltage V to 9 Volts.
 Monitor temperature T1, T2, T3, T7, T8 until stable.
 When the temperatures are stabilized record: T1, T2, T3, T6, T7,
T8, V, and I.
 Reset the heater voltage to 12 Volts and repeat the above
procedure again recording the parameters T1, T2, T3, T6, T7, TX,
V, I when temperatures have stabilized.
 Reset the heater voltage to 21 Volts and repeat the above
procedure a recording the parameters T1.
Procedures

 T2, T3, T6, T7, T8, V, I when
temperature have stabilized.
 When completed, if no
further experiments are to
be conducted reduce the
heater volts to zero and shut
down the system as detailed
in the operation section.
Procedures

 Table 1: Experiment Database on Without and Intermediate
Section in Place
Result/Data
Sample
No
T1 (°C) T2
(°C)
T3
(°C)
T4
(°C)
T5
(°C)
T6
(°C)
T7
(°C)
T8
(°C)
V
(Volt)
I
(Amps)
Distance
from T1
(m)

 Table 2: Material: Brass Intermediate Specimen cross sectional
area, A = ……. m2
Result/Data
Sample
No
Q
(Watts)
ΔT1-3
hot
(K)
ΔT4-5
int
(K)
ΔT6-8
cold
(K)
ΔX1-3
hot
(m)
ΔX4-5
int
(m)
ΔX6-8
cold
(m)
k1-2
hot
(W/mk)
K4-5
int
(W/mk)
K6-8
cold
(W/mk)

i. Plot a graph of temperature against distance from
T1 (m) for each Q.
ii. Explain your observation.
Discussion

 Your conclusion should be related to your practical
and theoretical understanding on the related topic.
Conclusion and Recommendation

Thermodynamics - Experiment 1

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