Hey guys, been away for a while and am now running a new box.
Build a scrubber myself, but was unable to get the 3-5 mm carbon, so instead got the next thing i could get my hand on, "Alcotec carbon blue" , 0.4-1.4 mm carbon
to compensate for the increased density of the filter material, i bought a fan with higher pressure (8.22 mmh2O manufacturer stat )
to counter some of the sound produced, I'm slowing it down, but so far, on a 6 volt PSU, its still to loud and moving air to fast
so i tried a 3 volt PSU, and that gave the desired effect, while still maintaining pressure( i have a powerful 12 v PSU inside the box i want it to draw its power from )
Google helped me to get this info:
to have a voltage loss of 9 volts, i need to dissipate 5400 mW
To do this i require a 15 ohm resistor @ 5.4 watts
after double checking this online, a site flagged a warning about the dissipation of that wattage in a single resistor. ( but the site had no option to add parallel resistors )
tho, I'm not an electrician by trade or schooled in it, so i asked a few people that are.
since no one was sure if series or parallel resistors would work, i came here for some help / confirmation of what we came to
To have a total, of 15 ohm @ 5 watts, i should connect 5 parallel 75 Ohm - 1 watt resistors, to get 15 ohm 5 watts on the circuit
and connect the fan on those.
I'm still lacking a 400 mw dissipation over those 5, increasing temperatures on them
i can place the resistors in the air flow of the fan itself to cool them a little.
Can anyone tell me if this would work By cooling them , or will i need to add another one to compensate for the 400 mw I'm still lacking?
Or perhaps tell me i am way off with this idea
PS:
This is assuming my basic stat of 15 Ohm 5.4watt is even correct
would love a confirmation on this as well
Build a scrubber myself, but was unable to get the 3-5 mm carbon, so instead got the next thing i could get my hand on, "Alcotec carbon blue" , 0.4-1.4 mm carbon
to compensate for the increased density of the filter material, i bought a fan with higher pressure (8.22 mmh2O manufacturer stat )
to counter some of the sound produced, I'm slowing it down, but so far, on a 6 volt PSU, its still to loud and moving air to fast
so i tried a 3 volt PSU, and that gave the desired effect, while still maintaining pressure( i have a powerful 12 v PSU inside the box i want it to draw its power from )
Google helped me to get this info:
to have a voltage loss of 9 volts, i need to dissipate 5400 mW
To do this i require a 15 ohm resistor @ 5.4 watts
after double checking this online, a site flagged a warning about the dissipation of that wattage in a single resistor. ( but the site had no option to add parallel resistors )
tho, I'm not an electrician by trade or schooled in it, so i asked a few people that are.
since no one was sure if series or parallel resistors would work, i came here for some help / confirmation of what we came to
To have a total, of 15 ohm @ 5 watts, i should connect 5 parallel 75 Ohm - 1 watt resistors, to get 15 ohm 5 watts on the circuit
and connect the fan on those.
I'm still lacking a 400 mw dissipation over those 5, increasing temperatures on them
i can place the resistors in the air flow of the fan itself to cool them a little.
Can anyone tell me if this would work By cooling them , or will i need to add another one to compensate for the 400 mw I'm still lacking?
Or perhaps tell me i am way off with this idea
PS:
This is assuming my basic stat of 15 Ohm 5.4watt is even correct
would love a confirmation on this as well
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