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CWatters[_2_] CWatters[_2_] is offline
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Default Oxyhydrogen Radiant Heater

On 26/01/2011 04:15, GreenXenon wrote:
> Hi:
>
> I’m thinking of hypothetical oxyhydrogen-fired radiant heater in which
> the significant emitter of thermal radiation is the flame itself.
>
> In terms of oxidant/fuel ratio, the flame is lean – more oxygen than
> hydrogen. Oxygen [O2] is the only oxidant to burn the fuel.
>
> Each and every molecule of the hydrogen is fully-oxidized by the
> oxygen. There is also an additional oxygen pumped in with the
> oxyhydrogen mixture to ensure that there all hydrogen molecules are
> completely burned into water molecules. This is so that there is no
> unburned hydrogen to any extent.
>
> There are 6 sides to this radiant heater. Left, right, back, front,
> up, and down. The height of the left, right, front and back are the
> same. The top and bottom are shorter in length than the heights of the
> aforementioned. However, the top and bottom are of the same width as
> the widths of the left and right. The front of the heater is what
> faces the object intended to be heated. The front consists of eco-
> friendly material that is completely transparent to all EM radiation
> from 100,000 nm to 300 nm. The interior of the back of the heater
> consists of eco-friendly material that completely reflects all
> wavelengths of EM radiation from 100,000 nm to 300 nm. The interiors
> of the left and right of the panel also consist of eco-friendly
> material that totally reflects wavelengths of EM radiations from
> 100,000 nm to 300 nm. The bottom of the panel is where the flame is
> emitted. The length of the flame is almost as long as the bottom of
> the panel. The top of the panel is where hot gases from the combustion
> escape – this is the exhaust and is as long as the flame. The material
> on the front of this heater has a low-enough heat conduction
> coefficient that it remains perceptibly cool even though it allows
> thermal radiation to escape outward.
>
> There are three pipes attaches to the bottom of this heater. One
> carries the hydrogen, while the other two carry oxygen.
>
> This infrared heater is air-tight prior to combustion. Also, prior to
> combustion, the only gas present in the heater is additional amount of
> oxygen. There is a sufficient amount of oxygen [but not more] such
> that the air pressure inside the heater equates to the air pressure
> outside the heater – this is to prevent any damage to the heating
> panel caused by pressure differences. Just before ignition of the
> fuel, the correct amount of oxygen is removed such that the high-
> temperature of the flame does not raise the internal air pressure to
> the point of damage. Also, the ignition is smooth and completely non-
> explosive. Just prior to the ignition, an adequate amount of hydrogen
> and oxygen are discharged into the heater in the slow, smooth,
> continuous manner. Now, when the amount of the oxyhydrogen mixture is
> enough for ignition and self-sustaining combustion, an electric spark
> is discharged which causes the fuel to catch fire. The amount of flame
> is adjustable in terms of height and width – however the length is
> constant. At the lowest setting there is just enough flame for the IR
> radiation to be perceptible as warmth. At the highest setting the
> flame nearly fills up the entire heating panel.
>
> I’m thinking of two applications for this radiant heater:
>
> 1. Use mild versions of the heater in cold parts of the world in
> outdoor public places to keep citizens warm – such as the roof-tops
> dining locations of restaurants in Northern Europe, where the climate
> is often cold and wet.
> 2. More intense versions of this heater can be used to cook food
> "medium rare". Think charred pork that’s bloody red on the inside.
>
>
> Thanks,
>
> Green Xenon


Fantastic idea, the steam produced could even be used to cook the
vegtables.

I suggest you would be better spending your time building one instead of
wasting time telling the world about it.