Difference between revisions of "Team:Sherbrooke/Experiments"
| Line 2: | Line 2: | ||
<html> | <html> | ||
| − | + | ||
<h1>Experiments & Protocols</h1> | <h1>Experiments & Protocols</h1> | ||
| Line 132: | Line 132: | ||
<span id="MC1.5_Maintain_Cold"> </span> | <span id="MC1.5_Maintain_Cold"> </span> | ||
<h5>Maintaining a temperature below room temperature test</h5> | <h5>Maintaining a temperature below room temperature test</h5> | ||
| − | <h6>Purpose</h6> | + | <h6><b>Purpose</b></h6> |
<p> | <p> | ||
Determine if the module temperature stability fits the specified of ±1.5℃, when the | Determine if the module temperature stability fits the specified of ±1.5℃, when the | ||
| Line 138: | Line 138: | ||
the set temperature relation. | the set temperature relation. | ||
</p> | </p> | ||
| − | <h6>Material</h6> | + | <h6><b>Material</b></h6> |
<ul> | <ul> | ||
<li><i>MC1.5</i> sub-module</li> | <li><i>MC1.5</i> sub-module</li> | ||
| Line 146: | Line 146: | ||
</ul> | </ul> | ||
| − | <h6>Setup</h6> | + | <h6><b>Setup</b></h6> |
<ol> | <ol> | ||
<li>Connect the power supply (Topward 6303D) to the fan</li> | <li>Connect the power supply (Topward 6303D) to the fan</li> | ||
| Line 156: | Line 156: | ||
</ol> | </ol> | ||
| − | <h6>Measurement</h6> | + | <h6><b>Measurement</b></h6> |
<ol> | <ol> | ||
<li>Set the voltage of the high current power supply to 1V</li> | <li>Set the voltage of the high current power supply to 1V</li> | ||
| Line 170: | Line 170: | ||
<span id="MC1.5_Maintain_Hot"> </span> | <span id="MC1.5_Maintain_Hot"> </span> | ||
<h5>Maintaining a temperature over room temperature test</h5> | <h5>Maintaining a temperature over room temperature test</h5> | ||
| − | <h6>Purpose</h6> | + | <h6><b>Purpose</b></h6> |
<p> | <p> | ||
Determine if the module temperature stability fits the specification of ±1.5℃, when the | Determine if the module temperature stability fits the specification of ±1.5℃, when the | ||
| Line 176: | Line 176: | ||
the set temperature relation. | the set temperature relation. | ||
</p> | </p> | ||
| − | <h6>Material</h6> | + | <h6><b>Material</b></h6> |
<ul> | <ul> | ||
<li><i>MC1.5</i> sub-module</li> | <li><i>MC1.5</i> sub-module</li> | ||
| Line 184: | Line 184: | ||
</ul> | </ul> | ||
| − | <h6>Setup</h6> | + | <h6><b>Setup</b></h6> |
<ol> | <ol> | ||
<li>Connect the power supply (Topward 6303D) to the fan</li> | <li>Connect the power supply (Topward 6303D) to the fan</li> | ||
| Line 194: | Line 194: | ||
</ol> | </ol> | ||
| − | <h6>Measurement</h6> | + | <h6><b>Measurement</b></h6> |
<ol> | <ol> | ||
<li>Set the voltage of the high current power supply to 1V</li> | <li>Set the voltage of the high current power supply to 1V</li> | ||
| Line 208: | Line 208: | ||
<span id="MC1.5_to_Cold"> </span> | <span id="MC1.5_to_Cold"> </span> | ||
<h5>Cooling speed test</h5> | <h5>Cooling speed test</h5> | ||
| − | <h6>Purpose</h6> | + | <h6><b>Purpose</b></h6> |
<p> | <p> | ||
Determine if the module cooling speed fits the specification of 0.5 to 1℃/s. | Determine if the module cooling speed fits the specification of 0.5 to 1℃/s. | ||
Also, this test determines the optimal voltage to apply to cool the aluminium mold. | Also, this test determines the optimal voltage to apply to cool the aluminium mold. | ||
</p> | </p> | ||
| − | <h6>Material</h6> | + | <h6><b>Material</b></h6> |
<ul> | <ul> | ||
<li><i>MC1.5</i> sub-module</li> | <li><i>MC1.5</i> sub-module</li> | ||
| Line 222: | Line 222: | ||
</ul> | </ul> | ||
| − | <h6>Setup</h6> | + | <h6><b>Setup</b></h6> |
<ol> | <ol> | ||
<li>Connect the power supply (Topward 6303D) to the fan</li> | <li>Connect the power supply (Topward 6303D) to the fan</li> | ||
| Line 231: | Line 231: | ||
</ol> | </ol> | ||
| − | <h6>Measurement</h6> | + | <h6><b>Measurement</b></h6> |
<ol> | <ol> | ||
<li>Set the voltage of the high current power supply to reach 85℃</li> | <li>Set the voltage of the high current power supply to reach 85℃</li> | ||
| Line 253: | Line 253: | ||
<span id="MC1.5_to_Hot"> </span> | <span id="MC1.5_to_Hot"> </span> | ||
<h5>Heating speed test</h5> | <h5>Heating speed test</h5> | ||
| − | <h6>Purpose</h6> | + | <h6><b>Purpose</b></h6> |
<p> | <p> | ||
Determine if the module heating speed fits the specified 0.5 to 1℃/s. | Determine if the module heating speed fits the specified 0.5 to 1℃/s. | ||
</p> | </p> | ||
| − | <h6>Material</h6> | + | <h6><b>Material</b></h6> |
<ul> | <ul> | ||
<li><i>MC1.5</i> sub-module</li> | <li><i>MC1.5</i> sub-module</li> | ||
| Line 266: | Line 266: | ||
</ul> | </ul> | ||
| − | <h6>Setup</h6> | + | <h6><b>Setup</b></h6> |
<ol> | <ol> | ||
<li>Connect the power supply (Topward 6303D) to the fan</li> | <li>Connect the power supply (Topward 6303D) to the fan</li> | ||
| Line 275: | Line 275: | ||
</ol> | </ol> | ||
| − | <h6>Measurement</h6> | + | <h6><b>Measurement</b></h6> |
<ol> | <ol> | ||
<li>Set the voltage of the high current power supply to reach -5℃</li> | <li>Set the voltage of the high current power supply to reach -5℃</li> | ||
Revision as of 13:00, 12 September 2015
Experiments & Protocols
Projects modules
MC96
Thermal experimentation
The only experimentations done are simulations because no prototype has been built yet.
Simulation
Thermal simulations have been done on the software COMSOL. These simulations have been used to verify the heat transfer of the aluminium mold of the modules, thus helping us improve their design. For the MC96, some simulation has been done on early design, but none on the final design, due to the impossibility to simulate heat pipes.
Simulation parameters
| Parameters | Values |
|---|---|
| Peltier element cooling power | 120W |
| Peltier element heating power | 500W |
| Air convective heat transfer coefficient | 50W/(m2 ℃) |
| Isolation conductive heat transfer coefficient | 5W/(m ℃) |
| Aluminium type | 6061-t6 |
| Aluminium conductive heat transfer coefficient | 167W/(m ℃) |
| Aluminium specific heat capacity | 0.896J/(g ℃) |
MC1.5
Thermal experimentation
Simulation
Simulation parameters
| Parameters | Values |
|---|---|
| Peltier element cooling power | 60W |
| Peltier element heating power | 250W |
| Air convective heat transfer coefficient | 50W/(m2 ℃) |
| Isolation conductive heat transfer coefficient | 5W/(m ℃) |
| Aluminium type | 6061-t6 |
| Aluminium conductive heat transfer coefficient | 167W/(m ℃) |
| Aluminium specific heat capacity | 0.896J/(g ℃) |
Trials protocols
These are the protocol used to test the thermal characteristic of the MC1.5 prototype. These protocols have been tested on a single sub-module of a MC1.5 .
Projects modules
- Maintaining a temperature below room temperature test
- Maintaining a temperature over room temperature test
- Cooling speed test
- Heating speed test
Maintaining a temperature below room temperature test
Purpose
Determine if the module temperature stability fits the specified of ±1.5℃, when the set temperature is below room temperature. Also, this test determines the voltage versus the set temperature relation.
Material
- MC1.5 sub-module
- High current power supply (bk precision 1694 power supply)
- Power supply (Topward 6303D)
- Electronic thermometer (Fluke 51K/J thermometer)
Setup
- Connect the power supply (Topward 6303D) to the fan
- Power up the power supply and adjust the voltage to 12V
- Connect the high current power supply (bk precision 1694 power supply) to the Peltier element (PS vcc to Peltier gnd and PS gnd to Peltier vcc)
- Set the thermocouple probe at the bottom of the middle hole of the aluminium mold
- Wait for the thermometer measure to stabilize for 20 second
Measurement
- Set the voltage of the high current power supply to 1V
- Wait for thermometer measure to stabilize for at least 20 second
- Note the thermometer measure and the voltage associated with it
- Repeats set 1, 2 and 3 and increased the voltage by 1V each time until the thermometer measure is below the specified lower limit (0℃)
- Stop the high current power supply
- Stop the fan power supply
Maintaining a temperature over room temperature test
Purpose
Determine if the module temperature stability fits the specification of ±1.5℃, when the set temperature is over room temperature. Also, this test determines the voltage versus the set temperature relation.
Material
- MC1.5 sub-module
- High current power supply (bk precision 1694 power supply)
- Power supply (Topward 6303D)
- Electronic thermometer (Fluke 51K/J thermometer)
Setup
- Connect the power supply (Topward 6303D) to the fan
- Power up the power supply and adjust the voltage to 12V
- Connect the high current power supply (bk precision 1694 power supply) to the Peltier element (PS vcc to Peltier vcc and PS gnd to Peltier gnd)
- Set the thermocouple probe at the bottom of the middle hole of the aluminium mold
- Wait for the thermometer measure to stabilize for 20 second
Measurement
- Set the voltage of the high current power supply to 1V
- Wait for thermometer measure to stabilize for at least 20 second
- Note the thermometer measure and the voltage associated with it
- Repeats set 1, 2 and 3 and increased the voltage by 1V each time until the thermometer measure is over the specified upper limit (80℃)
- Stop the high current power supply
- Stop the fan power supply
Cooling speed test
Purpose
Determine if the module cooling speed fits the specification of 0.5 to 1℃/s. Also, this test determines the optimal voltage to apply to cool the aluminium mold.
Material
- MC1.5 sub-module
- High current power supply (bk precision 1694 power supply)
- Power supply (Topward 6303D)
- Electronic thermometer (Fluke 51K/J thermometer)
- Chronometer
Setup
- Connect the power supply (Topward 6303D) to the fan
- Power up the power supply and adjust the voltage to 12V
- Connect the high current power supply (bk precision 1694 power supply) to the Peltier element (PS vcc to Peltier vcc and PS gnd to Peltier gnd)
- Set the thermocouple probe at the bottom of the middle hole of the aluminium mold
Measurement
- Set the voltage of the high current power supply to reach 85℃
- Wait for thermometer measure to stabilize for at least 20 second
- Stop the high current power supply
- Invert connection between the Peltier element and the high current power supply
- Set the high current power supply to 15.5V (calculated by this method)
- Start the chronometer when the thermometer measure reach 80℃
- For each 10℃ temperature drop, note the timestamp until 0℃ is reached
- Stop the high current power supply
- Invert connection between the Peltier element and the high current power supply
- Repeats step 1 to 9 for cooling voltage of 15V and 16V
Theoretical method to determine the optimised cooling voltage
Back to MC1.5 ProtocolsHeating speed test
Purpose
Determine if the module heating speed fits the specified 0.5 to 1℃/s.
Material
- MC1.5 sub-module
- High current power supply (bk precision 1694 power supply)
- Power supply (Topward 6303D)
- Electronic thermometer (Fluke 51K/J thermometer)
- Chronometer
Setup
- Connect the power supply (Topward 6303D) to the fan
- Power up the power supply and adjust the voltage to 12V
- Connect the high current power supply (bk precision 1694 power supply) to the Peltier element (PS vcc to Peltier gnd and PS gnd to Peltier vcc)
- Set the thermocouple probe at the bottom of the middle hole of the aluminium mold
Measurement
- Set the voltage of the high current power supply to reach -5℃
- Wait for thermometer measure to stabilize for at least 20 second
- Stop the high current power supply
- Invert connection between the Peltier element and the high current power supply
- Set the high current power supply to 24V (Maximal voltage available for the Peltier element)
- Start the chronometer when the thermometer measure reach 0℃
- For each 10℃ temperature rise, note the timestamp until 80℃ is reached
- Stop the high current power supply