I just want to say thanks. I'm thoroughly enjoying this series. I would also like to ask you the same question I asked Zero (which, by the way, he never answered)- If overheating does become an issue (I'm not predicting that it will), wouldn't sandwiching a Peltier device between your aluminum housing and a heat sink be a better solution than a big honkin' fan. For about $20.00, it would be relatively unobtrusive and keep the entire project box ice cold.
IM2L844, The Peltiers I have looked at, pump 20Deg C either Direction, thats 68F. So one would probably work Might use 2 Stacked in series. Dont for get the Heat sink compound. The Heat sink on the outside has to handle the pumped heat. Thats the problem why use one if you still have to keep the output Radiated. If you dont it will burn up. And when they fail they act as a heat blocker. I would only use on on a PWM if all the MosFets were right next to each other.
This question is a little late for your series, but I was looking at Zero's web site. There's a question and answer on what a PWM does. He talks about the current limiting aspect of his PWM, but doesn't seem to address what use the PWM is. I realize the current is pulsed, but should you get more HHO out of an equal amount of current using a PWM as without one?
A quest for knowledge or a Question, never comes late as long as it is asked.The PWM, The Law of thermal dynamics(What goes in must come out) limits the Efficiency of a cell Because Not all the Current converts to HHO,the Part that is converted to Heat first Caused by leakage current around the cells, to much voltage between plates.Heat is generated because of the internal resistance of the cell.
PWM will control current, In turn prevents thermal runaway ie The cell starts cold and gets hotter current goes up and the cell gets even hotter. It allows the production of HHO to be constant. From the moment it is turned on to the end of your trip, short or 400 miles long.The cell will never go over the preset current limit. Remember: during the rest time, no current and no heat.I hope this helps.
I'm guessing this was in response to my question. If it is, you have misunderstood my question. I understand the dynamic between temperature, resistance and current during electrolysis. If you will read my question again I think you will see that I was referering to your PWM overheating. I hope this clears up my original question.
I just want to say thanks. I'm thoroughly enjoying this series. I would also like to ask you the same question I asked Zero (which, by the way, he never answered)- If overheating does become an issue (I'm not predicting that it will), wouldn't sandwiching a Peltier device between your aluminum housing and a heat sink be a better solution than a big honkin' fan. For about $20.00, it would be relatively unobtrusive and keep the entire project box ice cold.
IM2L844 3 years ago
IM2L844 No misunderstanding, The above was a response that YouTube did not want to deliver to joewilders question. Finicky YouTube!?
H2O2FromH20 3 years ago
IM2L844, The Peltiers I have looked at, pump 20Deg C either Direction, thats 68F. So one would probably work Might use 2 Stacked in series. Dont for get the Heat sink compound. The Heat sink on the outside has to handle the pumped heat. Thats the problem why use one if you still have to keep the output Radiated. If you dont it will burn up. And when they fail they act as a heat blocker. I would only use on on a PWM if all the MosFets were right next to each other.
H2O2FromH20 3 years ago
This question is a little late for your series, but I was looking at Zero's web site. There's a question and answer on what a PWM does. He talks about the current limiting aspect of his PWM, but doesn't seem to address what use the PWM is. I realize the current is pulsed, but should you get more HHO out of an equal amount of current using a PWM as without one?
joewilder 3 years ago
A quest for knowledge or a Question, never comes late as long as it is asked.The PWM, The Law of thermal dynamics(What goes in must come out) limits the Efficiency of a cell Because Not all the Current converts to HHO,the Part that is converted to Heat first Caused by leakage current around the cells, to much voltage between plates.Heat is generated because of the internal resistance of the cell.
H2O2FromH20 3 years ago
Thank you. I'm really enjoying your series.
joewilder 3 years ago
PWM will control current, In turn prevents thermal runaway ie The cell starts cold and gets hotter current goes up and the cell gets even hotter. It allows the production of HHO to be constant. From the moment it is turned on to the end of your trip, short or 400 miles long.The cell will never go over the preset current limit. Remember: during the rest time, no current and no heat.I hope this helps.
H2O2FromH20 3 years ago
I'm guessing this was in response to my question. If it is, you have misunderstood my question. I understand the dynamic between temperature, resistance and current during electrolysis. If you will read my question again I think you will see that I was referering to your PWM overheating. I hope this clears up my original question.
IM2L844 3 years ago