Oxygen » oxygen cylinders

2009 02 19 captured under water scooter

admin — Fri, 09 Jul 2010 17:44:21 +0000

Army troopos advanced into LTTE hiding area entering Ampalavanpokkanai town perimeter have found underwater scooter, diving kits, oxygen cylinders and many other diving equipments from west of Puthukudiyirippu area yesterday, 19 February.

Duration : 0:3:57

[youtube 3vYE_Mlx_uo]

Welding Safety, Equipment, Tips & Techniques : Handling Gas Cylinders Safely When Welding

admin — Mon, 05 Jul 2010 12:26:10 +0000

Learn handling gas cylinders from a welding expert in this welding safety video.

Expert: Malcolm MacDonald
Bio: Malcolm MacDonald graduated from Connestoga College in 1968 taking the Fitter Welding Program.
Filmmaker: Melissa Schenk

Duration : 0:2:5

[youtube dMw1SjVl0gc]

Qantas 747 Explosion Update

admin — Thu, 01 Jul 2010 11:02:29 +0000

CHEN:
And a follow-up to a story we ran last month. Australian investigators have figured out what caused a blast that forced a Qantas 747 into an emergency descent. An exploding oxygen cylinder blew a large hole in the plane when it was flying from Hong Kong to Melbourne last month. But now the challenge is to pinpoint the cause of the explosion.

Since the emergency, Qantas has inspected the oxygen cylinders on all its aircraft and hasn’t found any problems.

None of the 365 passengers and crew were injured in the incident.

Duration : 0:0:31

[youtube nADHDCf3-UI]

Qantas Nervous About Safety Woes

admin — Fri, 25 Jun 2010 18:42:58 +0000

WONG:
And Qantas has suffered a hard hit since the incident last week in which one of its fleet suffered a blow in the side of the aircraft forcing an emergency landing in the Philippines. Now investigators are trying to find the cause of the blow. Let’s take a look.
STORY:
Qantas Chief Executive Geoff Dixon’s final four months before handing over to his successor has hit an unwelcome spot of turbulence. He’s having to defend the Australian airline’s safety record after a hole was blown in the fuselage of one of its planes mid-flight. An exploding oxygen bottle is thought the most likely cause.

[Geoff Dixon, Qantas CEO]:
“There is every chance that what happened to the aircraft, the trauma suffered by the aircraft, would have interfered with other systems. I mean, we know that happened but we’ll look at there if there is anything wrong. We believe everything in that aircraft was in good shape when it took off.”

The Boeing 747 suffered cabin pressure loss as the hole was ripped in its fuselage on a flight from Hong Kong to Melbourne.

The plane made an emergency landing in the Philippines where all 365 passengers and crew get off safely.

One oxygen cylinder is missing and the discovery of fragments and parts in the hold is adding weight to the investigators’ suspicions that it exploded.

[Neville Blyth, Australian Transport Bureau]:
“We’re looking at the size, form and nature of the hull breach. We’re looking at the fact that there was not a cylinder in that location. We’re examining the fracture mechanism of the valve and handle pieces that were recovered from the cabin.”

Qantas is checking the oxygen cylinders on its entire fleet of Boeing 747s in the wake of Friday’s drama.

The firm, with 225 aircrafts around the world, has a reputation stretching back nearly 90 years as one of the industry’s safest, a record its bosses say they’re anxious to maintain.

Duration : 0:1:52

[youtube kgihdPloUu8]

Luxfer Gas Cylinders (Portuguese audio)

admin — Sun, 20 Jun 2010 12:32:58 +0000

A member of the Luxfer Group of companies, Luxfer Gas Cylinders serves customers in major gas markets, including medical, life support, beverage, fire, scuba and specialty gases. No company offers a broader range of aluminum and composite gas cylinder products. Luxfer has grown to be a world leader in product quality and in product safety, with innovative programs for the markets it serves. With nearly 40 million cylinders already in service in more than 50 countries, Luxfer Gas Cylinders is truly setting the standard worldwide.

Duration : 0:10:1

[youtube Zg1JZWk3t4g]

Compressed Gas Cylinder Training Video – Missle Hazard

admin — Wed, 16 Jun 2010 04:15:20 +0000

The Compressed Gas Cylinder is half of a two module Compressed Air package that covers gas fundamentals, compressor design and operation, benefits and uses of compressed air, and best practices for storage, transport and use of compressed gas cylinders.

Duration : 0:1:3

[youtube pe9gYRXQTTY]

Luxfer Gas Cylinders (Korean audio)

admin — Sat, 12 Jun 2010 05:05:34 +0000

Duration : 0:10:1

[youtube d2F7ImB1LmA]

20 cm diameter cylinder 40 cm long contains 44 g of oxygen gas at 50°C. What is the pressure?

admin — Tue, 08 Jun 2010 17:49:03 +0000

A 20 cm diameter cylinder that is 40 cm long contains 44 g of oxygen gas at 50°C.
What is the reading of a pressure gauge attached to the tank?

You would have to use the ideal gas law pv=nRT.
Start with known values:
R=8.31 J / mol*K (constant)
T= 50 C or 323K
r = 10 cm
h = 40 cm
m(O2) = 44g
M(O2) = 32 g/mol

Then find unknown values:
v=pi*r^2*h
=3.1415*10cm ^ 2*40cm
v = 13 000 cm3 or 13L

n(O2)= m(O2)/M(O2)
=44g / 32 g/mol
n(O2) = 1.4 mol

Then substitute and solve.
pv=nRT
p=(nRT)/v
=(1.4 mol * 8.31 J/mol K * 323K) / 13L
p= 290 kPa

NGKG at Everest Camp Four

admin — Tue, 08 Jun 2010 02:18:22 +0000

After arriving in the South Col at Everest C4, Rob Hill and Teng Dorje found 5 oxygen cylinders from their cache had been “borrowed” by another unknown team.

Duration : 0:5:21

[youtube Se37PiXMETQ]

Can we fix our carbon dioxide problem with gas cylinders?

admin — Thu, 03 Jun 2010 05:22:21 +0000

As a welder, I know that there is available technology to take carbon dioxide out of the air and put it into gas cylinders. It would be the same as the stored fossil fuels carbon under ground but in cylinders, but then the problem of separating the oxygen from the carbon so we don’t suffocate ourselves. So is there a way to separate the carbon from oxygen in carbon dioxide?

"Is there a way to separate the carbon from oxygen in carbon dioxide?"

Coal is mostly carbon. When you burn it, the process consumes a lot of oxgyen, it liberates a lot of energy, and it turns the coal and the oxygen into mostly carbon dioxide. You are asking if it is possible to reverse the process.

Any chemical reaction can be reversed under the right conditions. I don’t know what those conditions would be exactly to reverse the burning of coal, but the process would consume a whole lot of carbon dioxide and a whole lot of energy, and it would give you back coal (well, pure carbon actually, maybe as coke or as graphite) and oxygen. How much energy would it take? Well it would take at LEAST as much energy as you got from burning the coal in the first place. Probably more. Probably a LOT more because (a) no process is 100% efficient, and (b) there’s this little problem called "entropy."

If your goal at the end of the day is to have a big pile of coal and some oxygen to breathe, then you are way ahead of the game if you just don’t burn the coal in the first place.

_____________________________
D’Oh! Almost forgot, Probably the most cost effective way to separate carbon dioxide into carbon and oxygen.

Plant trees.

When the trees mature, cut ‘em down, bury the logs in some slightly acidic swampy place, and then sit back and wait about 300 million years. If you do it right, they’ll turn to coal. If you don’t want to wait the whole 300 million years, you can bake the logs in an oxygen-free kiln until all of the cellulose has been converted to charcoal and steam.

If your goal is to remove CO2 from the atmosphere, then they key is to sequester the logs/charcoal. If you just leave the logs exposed to the weather, or if you bury them in the wrong sort of place, then they will be decomposed by fungi, and all of the carbon will eventually be released back into the atmosphere.