Induction Heating/Calorimeter Charateristics: Updated
|April 30, 2015||Posted by Jack Cole under Andrea Rossi, E-Cat, Hobbyist LENR|
As noted in a previous post, I have been working for some time on a new combined induction heating/calorimetry system. The induction heating coil also serves as a heat exchanger for transferring the heat of the reactor to water. This is then circulated to a 10 gallon beverage cooler. The cooler has two submersed temperature sensors from Atlas Scientific (one higher and one lower in the water). The cooler sits on top of a 4 spot magnetic stirrer. There are 4 magnetic stir bars at the bottom of the beverage cooler which are spun by the stirrer.
Here is a video overview of the system in operation.
Update (5/3/15): Input Energy Measurement
As part of a control run, I measured input power utilizing two different methods. The first method was performed by DC current and voltage sensors attached to the Arduino device, whereas the second method was performed by the programmable DC lab supply. The Arduino samples constantly up to 25khz (which were averaged over each second). Samples were taken from the lab supply every 5 seconds. The two different measurement techniques demonstrated an accumulated error of <4% over 10 hours.
Chart A. Comparison of Two Energy Input Measurements
Chart B. Comparison of Energy Input vs. Collected Energy
Over the last 120 seconds of the 10 hour run, the ratio of energy collected to energy input was 58%. It can be presumed that 42% was lost to the electrical control system of the induction heater and thermal losses.