Calculatiopn of Efficiency

ABSOLUTE FILTERS

CLIENTS NAME & ADRESS:

INSTRUMENT USED FOR PARTICLE COUNT : MET ONE

INLET READING FOR 0.3 MICR3ONS :

BLUE LINE ENTERPRISES, COLOMBO

MODEL 237 B OF 0.1 CFM. MAKE: MAKE

427233 (X) COMMON FOR ALL FILTERS

FILTER SERIAL NO.OUTLET READING AFTER FILTER FOR 0.3 MICRONS (Y)EFFIENCY, E=(X-Y) x100/XREMARKS
1 4 E=(427233-4)/427233=99.99% OK
2 1 E=(427233-1)/427233=99.99% OK
3 7 E=(427233-7)/427233=99,99% OK
4 3 E=(427233-3)/427233=99.99% OK

NOTE:- ALLTHE FILTERS WERE SERIALLY NUMBERED &TESTED. TEST REPORT IS PASTED ON FILTER ITSELF.

Selection of filter media

(A) Rated capacity, Where,
Q = V xA,
V= RFV, Rough Face Velocity, as measured, FPM, ( Feet per Minute
A= Filter face area, Sq. Ft,
 
(B) I.P.D Initial Pressure Drop, Where,
P= (P2- P1), mm WG
P1= Pressure at air entry side of filter , mm WG
P2= Pressure at air exit side of filter, mm WG
 

(A) Selection of media

Pleat depth, d= 50 mm
Pleat size, = 100mm
No of pleats per ft = 11 folds per RFT.
Calculations for filter size, 600x 600 x50 mm
No of pleats (Folds ) in 600 mm = 0.600 *11*3.28=21.64 nos. say 22 nos
Allowing for one fold at each end of media extra for clamping/ fixing to frame.
No of folds in panel = 24 nos.
Length of media =24x0.100= 2.4 RM or 2.4x 3.28 = 7.87 RFT
Area of filter media = width of panel x Running Length of media
= 0.600 M x 2.4 RM = 1.44 M3, or 1.44 x 3.28x3.28
= 1.44 x 10.76 sq ft
= 15.49 sq. ft.
 

We select HIGH LOFT FILTER MEDIA , quality 269 F, polyester , having Air Permeability of 7000 CMH/ SQ. M at 5.0 mm W G.

Face Velocity



Required face velocity
= 7000/60x60 : 0,600x0.600
= 1.95 :.36
= 5.27 m/s

= 500 FPM ( feet per minute )
= 500 : 3.28 X 60 = 2.54 m/s
Hence media selected is ok
 

NUMBER OF PLEATES

1.0 : Input information
Area to be provided, A - Ft2
VOLUME of air flow required, V- FT3, at initial pressure drop , P1
2.0 size of filter panel, say 24”x 24”X6”
3.0 area=24x 24/144=4 sq. ft
4.0 filtration area = 55 sq.ft , or 55/(3.28X3.28)= 5.11 sq. mt
approximate no of pleats
filtration area= 5.. sq. mt
width of panel= 24” or 610 mm or 0.61 mt
area = width x runnining length of media,L,
5.11 = 0.61 x L
There fore , L= 5.11/0.61=8.38 mt
Depth of filter panel= 6” or 0.1524 mt ,
Approximate no of spacers, S , required=L/ H or 8.38/ 0.1524= 55 nos
Approximate no of pleats, N , required= S/2 = 55 / 2 ( FOLDS ) 27 nos
Considering physical width of spacers, no of pleates should = 23 or 24 nos
Selection of filter media
Panel size = 24”x24”x6”(W x H x D )
Filtration area, + 55 sq. ft= 5.11 sq. mt. Rated capacity at 6,5 mm WG,=1700 cmh
=28.34 m3 per min
air permeabilty= 1700 cmh / 5.11 sq. mt=332 mt3/hr/mt2 at 6.5 mm WG quality select 306A a. p= 7500 mt 3/hr/ mt 2 at 5 mm wg

Questi nervi rilasciano una sostanza chimica (ossido nitrico) che, con una cascata di eventi, provoca il http://www.friulicollinare.it/t3lib/stddb/file/comprar-cialis-generico-en-valencia.html comprar cialis senza prescrizione italia Ancona rilasciamento della suddetta muscolatura liscia delle artiere dei corpi cavernosi causando come comprare viagra senza ricetta medica l’erezione. Alla lunga una disfunzione sessuale non approcciata e discussa all’interno della https://pillolemg.com/viagra-professional-prezzo/ acquisto viagra professional italia coppia, crea zone d’ombra, acredine, incomprensione e soprattutto mette in discussione e compromette http://premioinnovazione.cnr.it/dist/inc/lib/si-puo-comprare-viagra-senza-ricetta-it.html prezzo viagra pfizer la relazione stessa. “Affermo categoricamente che l’oios non ha fatto fotografie di vittime nude”. Ad es.

Photos Gallary

Joomla Templates and Joomla Extensions by ZooTemplate.Com