EML 4304L Thermal Fluids Lab
Thermal Conduction
Experiment #3
Teaching Group #3: Christopher Hokes, Ryan Prentiss, Chris Bolyard, Fredrick Davidson, and Siye Baker
Home Objectives Background Testing Equipment Pictures Procedure Questions Links
All the units are heated up at least four hours prior
to the experiment. The hot plates and the furnace are regulated for the desired
heating. The coolant flow rate is
regulated to register a noticeable temperature difference between the inflow and
the outflow temperatures. All this
work will be performed by the lab assistant.
The volume of water, Vw displaced in time Dt
will be measured with a large graduated cylinder.
The temperature readings will be measured using a compensating reference
temperature, thermocouple digital display gage. For Units #3 and #4, the temperature data will be taken at
all the thermocouple locations at two different hot plate temperatures.
1.
Select
Unit # 3 on the unit selector switch (USS).
2.
Using the
thermocouple selector switch (TSS), step through the 10 thermocouples (TC’s)
for Unit #3.
3.
Record the temperature indicated by each TC.
4.
Select
Unit #5 on the USS. The TC’s #5
and #3 on Unit #5 indicate the
coolant water inlet and outlet temperature for Unit #3.
5.
Record the coolant inlet and outlet temperatures
for Unit #3.
6.
In order
to obtain Vw/Dt, hold
the outflow hose from the Unit #3 over the graduated cylinder.
7.
Record the time, Dt,
required to fill up the cylinder to a desired volume, Vw.
8.
Record the volume, Vw.
9.
After
consulting the lab assistant, raise the hot plate temperature to the next
setting.
10.
Now
select Unit # 4 on the USS.
11.
Go
through Steps 2-9 for Unit #4. Remember
that for Unit #5 on the USS, TCs #5 and #4 indicate the coolant water inlet and
outlet temperature for Unit #4.
12.
Proceed
to the analysis for units 1 and 2.
13.
Select
Unit #1 on the USS.
14.
Go
through Steps 2-8 for Unit #1. Remember
that for Unit #5 on the USS, TCs #5 and #1 indicate the coolant water inlet and
outlet temperature for Unit #1.
15.
Select
Unit #2 on the USS.
16.
Go
through Steps 2-8 for Unit #2. Once
again, remember that for Unit #5 on the USS, TCs #5 and #2 indicate the coolant
water inlet and outlet temperature for Unit #2.
17.
Wait for
at least 30 minutes for the temperatures on Units #3 and #4 to reach steady
state.
18.
Follow Steps 1-11.