Re: ozone-generators (fwd)

[Steven Roys <sroys@xxxxxxxx>]

---------- Forwarded message ----------
Date: Tue, 13 Apr 2004 09:41:05 -0600
From: Gomez Addams <gomez@xxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: ozone-generators (fwd)

On Apr 13, 2004, at 8:48 AM, High Voltage list wrote:

> Original poster: Steven Roys <sroys@xxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Sun, 11 Apr 2004 20:38:42 -0700 (PDT)
> From: Peter Lawrence <Peter.Lawrence@xxxxxxx>
> To: hvlist@xxxxxxxxxx
> Subject: ozone-generators
>
>
> Does anyone know how ozone generators are designed/built. I'ld like to
> DIY
> since I've got several NSTs for building Tesla Coils, but I'm wondering
> how the commercially available units avoid generating nitric oxides
> (like
> Tesla Coils do).

  The more serious commercial units use an oxygen concentrator before
the UV
lamp or corona tube to reduce the amount of nitrogen entering the
ionization
section.  An air drier is also crucial, so that the (normally benign)
oxides of nitrogen do not form nasty nitric acid, which is the real
culprit
associated with oxides of nitrogen.

> Searching the web leads me to believe they typically use a high
> frequency
> inverter for HV, but its not clear whether this is just a low-cost way
> of generating HV at very low current, or if high frequency is a part
> of the
> way to avoid generating the nitric-oxides.

  Corona generators create two to five times higher ozone concentration
than
UV ionizers and are thus more economical.