I’m planning to take advantage of Ignition Maker Edition to historically log static pressure (along with other things) and text alert when filter changes are ACTUALLY needed, and when static pressure is at system damaging levels. I live where wildfires hit hard, so “3 month filters” means nothing.
Any recommendations on sensors that will either work with a PLC (I happen to have an automated logic T1H-EBC100 and analog ac and dc modules) or ideally something with a protocol that could talk directly to an Ignition server over Ethernet, without any PLC at all.
And ideally the sensor is under $200 since it’s for home use.
Any guidance extremely appreciated.
UPDATE: ncd.io seems to have good wifi options and integration to mqtt. I’m still searching.
For a lab/R&D setting I need to supply ~30 bars of static water pressure to some product samples for testing. Purpose is to test plastic creep, aka how fast do they break. The samples are small (roughly 2dl of water).
The hard part: test should run for several weeks. Maybe months. So the hand pump we have is a no go.
How would you do it?
Just shoot some ideas! Bad ones! Good ones! I'll sort later. Assume I am competent from a safety perspective.
EDIT: Some more details I perhaps should've added from the start. Didn't want to make the post too long...
Ping: u/shenaniganizer, u/pinchaser, u/Should_be_less, u/Sir_FlobeA and more.
A valve between the pump and the test system have been tried! I have a setup like this running right now over the weekend logging pressures to a laptop. I also added a ~1m hydraulic hose suspended above the setup which I pre-filled with air to 8 bars from our shop air. Gives a bit more margins for small leakages. Leak obv lowers the pressure but not as drastic as if everything was water filled.
Hand-pump-and-closeoff-valve is nicely simple and it sure works but has some drawbacks since we want to:
- Have 9 samples in gangs of 3 in 3 vessels of water of different temps. Lots of valves needed to separate them if one bursts...
- The wish from above is more like months and not weeks.
- This is likely a test that will continue with other products and other test. I'd rather spend a bit more time/money now and have it behave more like a 30-bar-faucet... I expect mission creep 😅
Hello, fellow designers
I have designed many parts that use oring seals to keep pesky ocean water away from the precious electronics that the company I work for sells. I usually use 70 duro buna-n orings, with the occasional 90 duro for extra deep stuff.
Currently im trying to get one of our products cast rather than fabricated, and the shape that I want the casting to be is more of a semi circular tube with tabs for mounting. I've done some research and I cant find much info on non circular high pressure static seal design. The only solutions I've come across is getting custom orings made ( which is out of the question ) and using gasket maker ( which I don't trust for this ).
Im hoping someone here can point me in the right direction.
Thanks!
My unraid pc case has the drive bays in the very front with the front intake fans blowing across the 12 hard drives.
Is it best to use high CFM fans or Static Pressure fans?
I have been using high CFM 100+ fans. My hottest hard drives are at 91F that go up to 101F when the room temp is high. My cache drive runs at 115F when in use and 97F at idle it's a NVME with no heat sink guess i should add one.
From what i have read i should use static pressure fans.
I'm looking at case fans, and can't seem to figure out if AF or SP is better for intake with dust filters infront of the fans, no obstructions behind the fans. Thanks.
I am looking to swap out my p14 fans for better static pressure fans for my 280mm aio. I have noticed that phanteks fans gets good reviews but their static pressure specs they post seem abysmal.
Is it possible these ratings have different testing criteria?
I’m trying to do a stress analysis of a rocket in flight and was wondering if I could carry the pressure load data from Fluent over to another module that would let me do a structural analysis.
I'm just learning about instrument systems, from what I understand a static port is mounted flush to the fuselage so that it can better measure ambient air pressure. But wouldn't a side mounted port be subject to wind hitting the aircraft on the side? If it does make a difference, is it major?
Sorry, the house is new to me but it's an old house. Built in 1953.
Hello. Just got my new gas furnace and AC installed. The total external pressure seems high at high fire, it might even trigger the high limit switch a few times. Here's the measurements: return duct -0.21", after filter -0.356", before coil: 0.465", and after coil: 0.264". It seems like my supply duct is restricted?
I’m sure this is a thing we have in common. But I just had this feeling all day and having my husband give me some deep pressure squeezes on my arm made it go away. What is up with this?
I'm scratching my head with the Noctua stuff. I need airflow, not static pressure but their naming on the fans are a little ridiculous. I looked up their guide on the website but the 92mm fans don't even have those names.
Hi, I will build a PC with a closed-look AIO CPU cooler in it, and I have come to realize that I need a high static pressure fan for my radiator contrasting the high airflow fans for general airflow in a case. But with all the options in the market, and being a noob who's concerned with getting a bang for the buck deal, I seek opinions as to what a good static pressure is.
I would also appreciate suggestions for 120mm casing fans that are less expensive.
I'm super new to flying. I have about 3hrs flight time. I'm flying a Cessna 172 and there is a static port on the side of the airplane.
Now, with some research I'm told that it measures barometric pressure. However, in trying to find what barometric pressure was, I found that it's simply the weight of air pushing down on you.
So, if this little port on the side of the plane measures barometric pressure, how can it do that if it's on its side. Wouldn't it make sense to have it facing upwards and placed on the roof or the top of the wing of the plane?
I don't know if this makes sense or not, it's just it seems like something super thin on its side would be better at measuring, I don't know, wind pushing against it or something. Certainly not air pressing downward though.
