Subject: Re: Atomizing Nozzles

From: [email-masked] (Ray Spinhirne)
Date: 29 Jul 1996 20:45:23 GMT

Marty Jones ([email-masked]) wrote:
: On a recent visit to Las Vegas, I noticed that several businesses on the strip had installed
: an interesting cooling apparatus - some very, very fine nozzles that sprayed water in such a fine 
: mist that you didn't actually feel wet - it was more like a fog - but apparently the subsequent
: evaporation cooled the carrier air over the sidewalk quite a bit.

: I was thinking I'd like to try making some of these for my patio, for the comfort of guests at 
: cookouts and watermelon feasts during these hot Dallas summers.  Anyone know the particulars
: of the system, such as nozzle construction and pressure required to get the fogging effect?

: I can say with fair certainty that the system did not atomize using an air jet, like a paint gun.  There
: was only one tube leading to the nozzles, which had to be water under pressure.

: Best Regards,

: Marty Jones

This method of evaporative cooling will work much better in the desert
at 10% humidity than in Dallas.

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From: [email-masked] (Marty Jones)
Date: 26 Jul 1996 21:14:14 GMT

On a recent visit to Las Vegas, I noticed that several businesses on the strip had installed
an interesting cooling apparatus - some very, very fine nozzles that sprayed water in such a fine 
mist that you didn't actually feel wet - it was more like a fog - but apparently the subsequent
evaporation cooled the carrier air over the sidewalk quite a bit.

I was thinking I'd like to try making some of these for my patio, for the comfort of guests at 
cookouts and watermelon feasts during these hot Dallas summers.  Anyone know the particulars
of the system, such as nozzle construction and pressure required to get the fogging effect?

I can say with fair certainty that the system did not atomize using an air jet, like a paint gun.  There
was only one tube leading to the nozzles, which had to be water under pressure.

Best Regards,

Marty Jones

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From: [email-masked] (Felice Luftschein)
Date: Tue, 30 Jul 1996 16:14:42 GMT

Irrigation stores have all manner of interesting misting nozzles, and lots
of parts for different applications.
In article <[email-masked]> [email-masked] (Marty 
Jones) writes:>From: [email-masked] (Marty Jones)
>Subject: Atomizing Nozzles
>Date: 26 Jul 1996 21:14:14 GMT

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From: [email-masked] (Kevin AstirCS "1U" KO0B)
Date: Wed, 31 Jul 1996 09:23:05 -0700 (PDT)

I was in Home depot last night.

The nozzles cost 3 for $4.50.  They run off city water pressure, and
are rated at .5 to 1.5 gal./hr.

They were in blister pack, so hard to get a good look, but they appear
to use the principle I outlined in previous posting.

The orifice appeared to be extreamly fine.  They also sold filters for
the misting system so it is possible that there is a plugging problem.

-KF-

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From: [email-masked] (Bill Webster)
Date: Wed, 31 Jul 1996 07:59:52 -0400

> evaporation cooled the carrier air over the sidewalk quite a bit.

I wonder if this is similar to the misting system used at the Olympic
Games in Atlanta?  Atlanta seems to have more 'mist' than fog coming out
of the jets.  And, they help it along with large blower fans.  At least,
that's what I've seen on TV.

regards.

-- 
Bill Webster   [email-masked]