SUMMARY: This report represents the outcome of heat exchange via 4 tubes that are fitted within the shell with four thermocouples to determine the temperature for every pass, two passes for the hot water (in/out) and two for the cold water (in/out). The experiment was commencing according to the amount of hot and cold water that was supplied to the inputs of the heat exchange. The supply was managed by the use of taps that would restrain or allow the gush of water. The temperature for the inputs was constant in the most of the 5 runs while the outputs had been changed due to heat exchange occurring within the shell. Hot water had lost temperature while cold water had gained temperature. An experiment was set up to resolve the energy losses that affect the hot and cold water, by using thermodynamic laws. During the experiment the water gush rates were measured carefully and the data had been collected and entered to allow the calculations of the energy losses that came out. Finally, it was discovered the heat had been exchanged from the hot into the cold to maintain the temperature inside the shell. Contents: SUMMARY:i 1.0INTRODUCTION:1 2.0AIM:1 3.0EXPERIMENTAL METHOD:1 4.0EXPERIMENTAL DATA:2 5.0DATA ANALYSIS:2 6.0DISCUSSION:4 7.0CONCLUSION4 ii INTRODUCTION: The exchanger consists of a number of tubes that sit inside a shell that allows cold water to flow through them. Hot water flow through the bordering shell and the two fluids exchange heat. Heat exchanger can come in various forms and as such can have many different motives. A radiator in a car and a boiler in a steam engine are both heat exchanger with the radiator cooling the engine, and the boiler exchanging raw materials into steam that can be used for power generation. The heat exchanger that has been used in this experiment was a basic shell and tube style as shown in figure 1. A Jenco digital thermometer and Jenco thermocouple switches are used in the heat exchanger set up to allow to calculate the measurements for the experiment. Flow meters fitted on the inlet of hot and cold water taps are used to change volume flow rates. AIM: The aim of the report is to evaluate the heat losses that came out for the hot water. The experiment will carry of recording temperatures and flow rates and then calculating other possible factors that may cause heat loss.EXPERIMENTAL METHOD: 1) Be familiar with the different part of the experimental. 2) Turn on the cold and hot water taps. 3) Turn valves for the cold water at an initial flow rate (approximate 15 L/min for cold water) Make sure that all the water passes through the flow meters (turn off one of the valves in each water supply line) 4) Water for couple of minutes before reading the data. 5) Take the temperature reading for the thermocouples 1 to 5 by press the Jenco thermocouple buttons. 6) Repeat steps from 3) to 5) for 5 different flow rate combinations.EXPERIMENTAL DATA: Room temperature: 15°C Run/Quantities (L/min) (L/min) in ...

1. SUMMARY:
This report represents the outcome of heat exchange via 4 tubes
that are fitted within the shell with four thermocouples to
determine the temperature for every pass, two passes for the hot
water (in/out) and two for the cold water (in/out). The
experiment was commencing according to the amount of hot and
cold water that was supplied to the inputs of the heat exchange.
The supply was managed by the use of taps that would restrain
or allow the gush of water. The temperature for the inputs was
constant in the most of the 5 runs while the outputs had been
changed due to heat exchange occurring within the shell. Hot
water had lost temperature while cold water had gained
temperature.
An experiment was set up to resolve the energy losses that
affect the hot and cold water, by using thermodynamic laws.
During the experiment the water gush rates were measured
carefully and the data had been collected and entered to allow
the calculations of the energy losses that came out. Finally, it
was discovered the heat had been exchanged from the hot into
the cold to maintain the temperature inside the shell.
Contents:
SUMMARY:i
1.0INTRODUCTION:1
2.0AIM:1
3.0EXPERIMENTAL METHOD:1
4.0EXPERIMENTAL DATA:2
5.0DATA ANALYSIS:2
6.0DISCUSSION:4
7.0CONCLUSION4

2. ii
INTRODUCTION:
The exchanger consists of a number of tubes that sit inside a
shell that allows cold water to flow through them. Hot water
flow through the bordering shell and the two fluids exchange
heat. Heat exchanger can come in various forms and as such can
have many different motives. A radiator in a car and a boiler in
a steam engine are both heat exchanger with the radiator
cooling the engine, and the boiler exchanging raw materials into
steam that can be used for power generation. The heat
exchanger that has been used in this experiment was a basic
shell and tube style as shown in figure 1. A Jenco digital
thermometer and Jenco thermocouple switches are used in the
heat exchanger set up to allow to calculate the measurements
for the experiment. Flow meters fitted on the inlet of hot and
cold water taps are used to change volume flow rates.
AIM:
The aim of the report is to evaluate the heat losses that came out
for the hot water. The experiment will carry of recording
temperatures and flow rates and then calculating other possible
factors that may cause heat loss.EXPERIMENTAL METHOD:
1) Be familiar with the different part of the experimental.
2) Turn on the cold and hot water taps.
3) Turn valves for the cold water at an initial flow rate
(approximate 15 L/min for cold water) Make sure that all the
water passes through the flow meters (turn off one of the valves
in each water supply line)
4) Water for couple of minutes before reading the data.
5) Take the temperature reading for the thermocouples 1 to 5 by
press the Jenco thermocouple buttons.

3. 6) Repeat steps from 3) to 5) for 5 different flow rate
combinations.EXPERIMENTAL DATA:
Room temperature: 15°C
Run/Quantities
(L/min)
(L/min)
inlet
inlet
outlet
outlet
1
1.5
1
47
15
30
32
2
3
3
42
15
22
22
3
4
7.5
41
14

4. 23
23
4
5.5
10
41
14
22
24
5
6.5
11
47
14
26
28
DATA ANALYSIS:a) Mass and Energy equations:
,
b) Energy Loss:
Run/Quantities
ṁhot (kg/s)
ṁcold (kg/s)
∆Thot
∆Tcold
ṁhot×Cp×∆Thot
ṁcold×Cp×∆Tcold
Qloss (kJ)

5. 1
0.025
0.0167
17
17
1.7791
1.1884
0.5907
2
0.05
0.05
20
7
4.186
1.4651
2.7209
3
0.0667
0.125
18
9
5.0257
4.7093
0.3164
4
0.0917
0.1667
19
10
7.2933
6.9781
0.3152
5
0.1083
0.1833
21

6. 14
9.5202
10.7421
-1.2219
c) Enthalpy changes for run 3:
i. Method 1:
From steam table
(A-4)
ii. Method 2:
d) Theoretical value of :
= 26.4
There is the different between the resulting temperature and the
data collection which is 1.6. This suggests that there is a little
bit of heat loss
DISCUSSION:
During a heat exchanger experiment, heat exchange has been
observed between two water tubes baring different temperature.

7. It has been noticed that the heat exchange occurred due to the
conduction from source with more energy than that of the
source baring less energy. Thus, it prevails that the loss of
energy in hot water was not due to the heat energy but from the
cold water and mechanics of flow rate. In addition, it is the
same as the second law of thermodynamics in which the cold
temperature adapts to the warm temperature.
CONCLUSION:
For industrial applications the shell and tube heat exchange are
preferred widely as they are much efficient in converting
between two different fluids temperatures. The more mass two
fluids have the more heat is exchanged between fluids (which
are exposed to each other in the exchanger) as the exchange
area is increased. Therefore, the plate heat exchanger is
considered more efficient in terms of cooling hot water. For
measuring the rate of flow of fluids per meter in our (shell and
pipe) heat exchanger two flow meter is useful in this regard. On
the other hand thermocouples are preferred for the temperature
readings. The procedure is generally consists of water supply
and meter readings for five different water flow rates.
According to the calculations the heat transmission between the
fluids is equal to the total heat quantity after the loss of heat in
the system.
5
EXPERIMENTAL DATA:
Room temperature: 15°C
Run/Quantities
(L/min)
(L/min)

8. inlet
inlet
outlet
outlet
1
1.5
1
47
15
30
32
2
3
3
42
15
22
22
3
4
7.5
41
14
23
23
4
5.5
10
41
14
22
24
5

9. 6.5
11
47
14
26
28
VIVTORIA UNIVERSITY
COLLEGE OF ENGINEERING AND SCIENCE
NEM2201 THERMOFLUIDS
Laboratory Experiments
On
Shell and Tube Heat Exchanger
2. Operating Procedure
a) Be familiar with the different parts of the experimental
equipment.
b) Turn on the cold and hot water taps.
c) Turn valves for the cold and hot water at an initial flow rate
(approximate 15 L/min for cold water). Make sure that all the
water passes through the flow meters (turn off one of the valves
in each water supply line).

10. d) Water for a couple of minutes before reading the data.
e) Take the temperature reading for thermocouples 1 to 5 by
press the Jenco thermocouples buttons.
f) Repeat c) to e) for 5 different flow rate combinations.
3. Data Collection
Run/Quantities
Qhot (L/min)
Qcold
(L/min)
Thot
inlet
Tcold
inlet
Thot
outlet
Tcold
outlet
1
2
3

11. 4
5
4. Data Analysis
a) Write down the mass and energy equations.
b) Calculated the energy loss from each run and table the
results.
c) For run 3, try to calculate the enthalpy changes of the water
by using 1) tables and 2) formula using constant specific heat.
d) Select run 5, assuming the temperature for the exit cold fluid
is not measured and there is no energy loss, calculate the exit
temperature of the cold fluid, compare this with the measured
results, and discuss the where the heat loss can occur.
e) Give a brief discussion on the possible temperature change of
hot and cold waters along the heat exchanger.