Home
FAQ
Search
Memberlist
Usergroups
Galleries
Register
Log in
View previous topic :: View next topic |
Author |
Message |
rgnbtj86j Master of STF
|
Posted:
Fri 15:20, 30 Aug 2013 |
|
|
Joined: 11 Jul 2013
Posts: 9571 Read: 0 topics
Warns: 0/3
Location: England
|
For the past 45 years huge amounts of hydrogen have been used in business. Hydrogen has been used in applications such as food processing to fuel in rockets. As a result practices have been developed to safely make store and ship hydrogen safely. Knowing a few of the attributes of hydrogen will greatly increase safely handling it. The following [link widoczny dla zalogowanych] is a short list of some differences between hydrogen and other fuels.
Except for oxygen any gas can cause suffocation. Hydrogen is unlikely to achieve levels that cause suffocation because of its penchant to dissipate rapidly.
Hydrogen’s small molecular size makes it hard to create a combustible situation. For a hydrogen fire to start requires a sufficient concentration of hydrogen along with of an ignition source and the correct amount of oxygen. The energy necessary to ignite hydrogen can be extremely low. However, at concentrations less then 10% the energy required to ignite [link widoczny dla zalogowanych] hydrogen increases. This [link widoczny dla zalogowanych] makes hydrogen more difficult to ignite close to the lower flammability levels.
In addition,it is foreseeable [link widoczny dla zalogowanych] that transportation of hydrogen could be greatly diminished by generating it at the point of use. The hydrogen refueling site could produce hydrogen at the refueling site. Similarly, hydrogen could be generated in the home and piped to the appliance for use.
Hydrogen is lighter than air and as a result it diffuses quicker. Hydrogen dissipates almost 4 times faster then natural gas. This means that when released hydrogen concentrations rapidly drops under flammable concentration. Hydrogen rises 2 times faster than helium and 6 times faster than natural gas.
At this time hydrogen generators are added to an automobile and the hydrogen is piped directly into the gasoline intake where it is combined with the gasoline. When [link widoczny dla zalogowanych] the motor is started hydrogen production starts and when the motor is turned off production ceases. If an accident were to occur the only hydrogen available is that in any tubes and that would [link widoczny dla zalogowanych] rapidly and safely disperse.
For [link widoczny dla zalogowanych] a hydrogen explosion to take place 10% pure oxygen must be present or 41% or air. Hydrogen is volatile at concentrations of 18.3% to 59%. Gas explosion can take place at lower concentration, from 1.1% to 3.3% thus [link widoczny dla zalogowanych] presenting a more hazardous situation. It is very improbable that hydrogen will blow up in open air due to its inclination to quickly dissipate. This is unlike other gases such as gasoline or propane, which remain near the ground, producing a greater danger of an explosion.
In summary, the use of hydrogen has already led to the generation safely standards and equipment. The use of hydrogen will cause [link widoczny dla zalogowanych] us to reexamine current safety standards for other fuel. These differences are not insurmountable and with proper education hydrogen can become a safe fuel for consumers to handle.
Hydrogen is not inherently more hazardous than other sources of energy. Some of hydrogen’s characteristics in reality improve its safety when compared to other energy sources. As with all energy source hydrogen must be managed correctly to guarantee [link widoczny dla zalogowanych] safety.
Burning hydrogen [link widoczny dla zalogowanych] results in heat and water. Due to the water vapor generated when hydrogen burns, a hydrogen flame has less radiant heat contrasted to a hydrocarbon fire. The low levels of heat next to the flame (the flame is just as hot), decreases the risk of secondary fires starting.
Find Out methods to boost your gasoline mileage with water by dropping in to Hydrogen Fuel Today.. Also published at Hydrogen Safety Concerns When Used In Vehicles.
Hydrogen is non-toxic or poisonous. [link widoczny dla zalogowanych] Furthermore, it does not contaminate the ground or water. The inadvertent release of hydrogen into the atmosphere doesn’t contribute to pollution.
Therefore, in a correctly ventilated area hydrogen will not concentrate around a leak. As the lightest element, confining hydrogen is very hard. One way of insuring safety is by building suitably ventilated buildings that do not allow hydrogen concentrations to build to unsafe levels.
相关的主题文章:
[link widoczny dla zalogowanych]
[url=http://www.zgx520.com/home.php?mod=space&uid=222042][/url]
The post has been approved 0 times |
|
|
|
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|
fora.pl - załóż własne forum dyskusyjne za darmo
|
|