Experiment 3: Completed-No Excess Heat
|January 18, 2015||Posted by Jack Cole under Uncategorized|
The third experiment in this series has started with a new control run. The following modifications have been made: 1) external temperature sensor attached to the top of the tube furnace, and 2) improved mechanical connections between the wire from the power supply to resistance heater wire. The external temperature sensor data is collected through an Android app, which was written for electrolysis experiments conducted previously by this author. Along with this is an additional temperature sensor for measuring ambient temperature (this in addition to the type K thermocouple measurement system).
This new setup will allow two separate measurement systems for both ambient temperature and temperature of the apparatus (type K for the core and a temperature sensor from Atlas Scientific for the temperature on the outside surface of the tube furnace). Therefore, there will be two separate calibration curves from which to perform calculations of excess heating.
Because the tube furnace contains ceramic, fire brick, and steel, the calibration steps were extended to 2 hours from 1 hour to allow for a longer time constant for the external temperature sensor. The control run will take 12 hours. If there is time today after the reactor has cooled, the fuel will be added and seal applied. It will be allowed to sit overnight, and the active run will start tomorrow (assuming no major problems or equipment failure).
Results (1/20/15): The run failed to demonstrate excess heating. Also notably absent was the variability in resistance noted in the successful run. The experiment did demonstrate the utility of the secondary set of temperature measurements providing a calorimetric measure, which will be utilized in future experiments.