Hacked my barbecue, and went from there...
Propane Monitoring - Not Easy To Do!
In order to understand why I believe the ProReg will be a breakthrough in the measurement of pressurized finite fuel systems, it is important to understand the physics behind the liquid and gas mixture that resides inside of your propane tank. When holding temperature constant, the liquid and gas mixture of your tank will always return to an equilibrium pressure. To clarify, a propane tank with 30% liquid will have the same pressure as a tank with 70% liquid on a 70 degree day. Thus, taking an on the spot pressure measurement is useless. With this project, I hope to prove that it is possible to accurately predict fuel levels without a scale or a liquid float gauge inside of the tank.
Making this technology work before the IoT revolution was not commercially viable, as each propane monitoring system would require expensive hardware and software at the sight of the measurement. With the proliferation of low energy wireless connectivity, we can finally create a cost effective system that will send data readings to the cloud where a central database computes propane usage and sends that calculation back to the user. Below is an example of the data-set provided by the maiden run of the ProReg. It shows an initial reduction in gas with the burners on medium, then the slope decreases as I turned the burners up to high, then pressure starts to increase back to its equilibrium after I turned the grill off, then It begins to decrease again after I turn the grill back on, and eventually flat-lines as the tank runs out of gas.