E-Cylinder Math
An E cylinder contains 900 psi and is running at 10 L/min. Approximately how long will it last?
What is 25 minutes?
An H cylinder contains 1500 psi and runs at 8 L/min. Approximately how long will it last?
What is 9.8 hours?
One liter of liquid oxygen weighs approximately this many pounds.
What is 2.5 lb?
This method separates components of liquefied air according to differences in boiling points.
What is fractional distillation?
Of a concentrator, bulk oxygen system, compressor, and liquid oxygen cylinder, this is commonly used to supply home oxygen continuously.
What is an oxygen concentrator?
An E cylinder has 1800 psi and is running at 3 L/min. Calculate its duration without subtracting a reserve.
What is 2 hours 48 minutes?
An H cylinder contains 1600 psi and is changed at 300 psi. At 3 L/min, approximately how long will it last?
What is 22 hours 40 minutes?
One cubic foot of liquid oxygen produces approximately this many cubic feet of gaseous oxygen.
What is 860 cubic feet?
This method is the least expensive and most commonly used oxygen-production process.
What is fractional distillation?
This home oxygen system can provide a lightweight portable supply after being filled from a reservoir.
What is liquid oxygen?
An E cylinder has 2200 psi and will be changed at 400 psi. At 2 L/min, how long can it be used?
What is 4 hours 12 minutes?
When calculating H-cylinder duration, cylinder pressure is multiplied by this number before dividing by flow.
What is 3.14?
A 40-lb supply of liquid oxygen running at 5 L/min lasts approximately this long.
What is 45.9 hours?
This home oxygen device uses molecular-sieve material to concentrate oxygen from room air.
What is an oxygen concentrator?
A concentrator produces oxygen from this readily available source.
What is room air?
Increasing the liter flow while keeping cylinder pressure unchanged does this to cylinder duration.
What is decreases it?
If liter flow is doubled and all other variables remain unchanged, cylinder duration changes in this way.
What is cut approximately in half?
A portable LOX system weighs 30 lb, but the empty container weighs 8 lb. This is the actual weight of liquid oxygen present.
What is 22 lb?
Oxygen concentration delivered from a concentrator is affected by this user-adjustable setting.
What is the flow rate?
As the set flow from many oxygen concentrators becomes excessively high, oxygen concentration generally does this.
What is decreases?
Two E cylinders contain equal pressure. Cylinder A runs at 2 L/min and cylinder B at 4 L/min. This cylinder lasts approximately twice as long.
What is Cylinder A?
Compared with an E cylinder at the same pressure and flow, an H cylinder generally lasts much longer because of this.
What is its much larger cylinder factor/capacity?
That 22-lb LOX supply operating at 3 L/min lasts approximately this long.
What is 1 day and 18 hours?
Fractional distillation can produce this form of oxygen.
What is pure liquid oxygen?
The two oxygen-storage/delivery options identified as appropriate for home care are these.
What are an oxygen concentrator and liquid oxygen?