Hi,
I purchased a HEPA filter rated H14 99,995% ef. on 0,3 microns, 300 Pa and 305x610x292mm and I want to get the correct blower.
According to the example of "match a suitable blower" in the Flowhood pictorial, my filter is the same except for the 300 Pa initial resistance and the 292mm. In the example the HEPA filter is at an initial 250 Pa + 50 Pa for the prefilter = 300 total. Mine is 300 + 50 for the prefilter=350 Pa initial resistance. How many more cfm?s do the blower need to work at to get the desired 0,5m/sec.-30m/min-1800m3/hour for that initial resistance and the 292mm?
I hope somebody understands what I mean :D
Thanks anyhow :lol:
It depends on the blower, on the working curve of the blower.
You want a blower that outputs 340m3/h at 350 Pa.
Thanks man.
as long as were on the topic, what is the formula for the amount of cfm's needed for whatever measurement is used for the opposing HEPA filter? I've never used a flow hood but can see many benefits to doing so... as should everyone
whats a flowhood for?
http://www.fungifun.org/English/Flowhood
Hey folks,
I just ordered a blower which I intend to use for constructing my own laminar flowhood.
Specifications (Model R2E190-A026-55, ebm Papst):
air volume 570 m³/h
Schalldruckpegel 62 dB(A) <--- is this the static pressure?
I am not sure whether or not this blower suffices for building a flowhood ????
Thanks alot for any helpful comments,
W
What followeth is the technical information, in German:
Technische Daten
Spannung 230 ~ VAC
Frequenz 50 Hz
Volumenstrom 570 m³/h
Drehzahl 2500 1/min/2700
Leistungsaufnahme 58 W/75W
Stromaufnahme 0.26 A/0,34A
Kondensator Kapazität 2.0 / 400 uF/V
Schalldruckpegel 62 dB(A)
Umgebungstemperatur 50Hz -25 .. 50 °C
Material Lüfterrad Kunststoff PA 6.6
Lagerung wartungsfreie Kugellager
Drehrichtung rechts, auf Rotor gesehen
Anzahl Lüfterradschaufeln 7
Kabelausführung variabel
Einschraubtiefe max. 5 mm
Betriebsart S1
Isolationsklasse "B"
Schutzklasse I
Schutzart IP 44
Motorschutz Temperaturwächter
Gewicht Temperaturwächter
edit:
The HEPA Filter I am gonna use is a
240-03050610-M078E080
HS-Mikro SF, Gr.:305x610x78 mm, EN 1822 Kl. H14"
>Specifications (Model R2E190-A026-55, ebm Papst):
This is an axial blower and is NOT suitable for building a flowhood, because it doesn't deliver air against static pressure.
>Schalldruckpegel 62 dB(A) <--- is this the static pressure?
No, this is the noise the blower produces.
>I am not sure whether or not this blower suffices for building a flowhood ????
No, it doesn't.