In a bio reactor I need to steam heating up to 1 barg to sterilize it.
First I will allow the steam to flow trough all openings , then close all it , and let the steam to build up at 1barg for 15 minutes.
After it I will shut off the steam.
Here it cames my concern, how quick will the...
I have this facts.
To supply air at 2m3/min at 1.5 bar abs to a fermentation vessel.
Air shall be filtered to 99.99 % particulate < 0.2 micron.
Air supply could be
1.-
A roots type blower at 1.5 bar absolute
2._
A screw or piston compressor rated at 8 bar absolute.
Cons for roots type
I can...
By the costumer requirement I have to supply 2 m3 /min at 0.5 bar,or 70CFM at 7 PSIG .
Of course the best option to it is a ROOTS type blower.
But I want the source to be a 7 bar or 100 PSIG commpresor , just because I need to filter and dry the air to be esteril, and I can not get filters...
I know that on ships, the HVAC run in a HIGH PRESSURE air syitem , just to get small duct size .
My question is what kind of filter media and shape is used , and what is the standard pressure rated.
What is the best way to makeup air to 100% hr , after filtrating the air to be sterile.
I will make the air sterile by filtration , then I need to make it to be 100%HR , of course the water will be distillate,
Flow is about 2 m3 / min , 35.31467 f/min .
Pressure will be about 5" water column...
In a old book named BOMBAS , "PUMPS" by Julio Hirschmann R. edited in Chile in year 1958 it have a chapter named
CALCS THE HEAD FOR WATER AND VISCOUS LIQUIDS
in spanish
CALCULO DE LA ALTURA DE ELEVACIÓN PARA AGUA Y LIQUIDOS VICOSOS
About it , it states that according to a article by...
In a system I have a mono ethylene glycol 60% water 40%.
The fluid is runing from -20 to -5 °C flow is 45 m3/hour and spectec head 22 meter water column .
Despite this data I need to know how to choose the proper pump and spec it as handling water.
Thanks in advance
Could you tell me please how to scale a proyect
I have this values
flow 1100 m3/h [5000 gal/min]
leaving from a 430 mm wide 380 heigth [ 17" 15" ] open
Guess I want to have the open to be scale by 5 or 0.20 factor so the open will be 86 mm W 76 H
Shall I have the flow also by this...
what is the name of this solution, English is not my first tounge.
water 100 pound
portland cement 50 pound
fluidizer 10 poun ,
It is used to injet on 65' dep, 4"diam hole each at 7 feet pattern to build a soil barrier at a big slope on a river coast
there is a town on the border at 220...
Could this spring be made?
Length: 38 +/-2.0 mm
Out Diameter of spring: 5.6 +/-0.5 mm
Diameter of spring material: 0.5 +/-0.15 mm
Effective turn quantity: 53 (+/-5)
Total turn quantity: 55 (+/-5)
Load: 0.3 kg for all length
Type: Compression spring
The important is that the material working...
Which standard or procedure cover the testing for grinding wheel at the manufacturer plant , before sending it to the customer use.
I know that a test it is to run it at 150% the surface speed for a while, but I do not have a standard to follow.
Thanks in advance
In Spanish we call PEDRAPLEN , to the railroad base when it it shall be done over a flood area, as to rise the old railroad level
It is made whit rocks .
My question is what is this word in English ?
TERRAPLEN , is the same but made on dry terrains with soil or earth.
At both of them there is...
From the all fan's wheel types , as
backward inclined
airfoil
industrial process open wheel
forward curved
and so
which one make the most power effiecient fan ??
I has bee asked to study this treatment.
Put on a stove at 35°C and 100 % relative humdity of "RUBBER" piece.
I have no more data, not known what kind of rubber it is or what is the purpouse of such treatment
Could you please route me to some where I can get such info??
Thanks in advance
I post this topic with all the data I have and in a true situation.
Fact : to fill with air a 1500 liters [about 400 Gallons] film bag to up a 0.050 Bar [0.7251887 PSI or 20 " water column ] pressure in about no more than 15 seconds
Source of air . 7 bar [about 100 PSI]
Mean of delivery : a...
Hi all
How deep in water could I sink a 20" schedule 20 pipe, assuming the internal pressure of pipe is the atmosphere??
Of course it have not to collapse or be deformed.
www.cadtutorforum.net
Odd question I know but some roof cowls that were painted on a previous job incorrectly has to be corrected.They have added rubbersised paint to a plastice finished rough surfaced roof cowls.What can have done with this mess?Is it best rubbed down,primed and paint reapplied?Thing is if its left...
