Hand Cranked Blower/ventilator?

D

Dazed

Guest
Does anyone have a source for a hand cranked ventilator for shelters?

TIA
Bert
 
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L

LONEWOLF

Deceased
I've been looking for one of those off and on for years now, and no success. Ditto for the source out there if anyone has one....
 
tangent

tangent

Membership Revoked
That Utah fallout shelter place has a swiss air vent/pump... expensive though...

otherwise:

http://www.oism.org/nwss/s73p917.htm

http://www.oism.org/nwss/s73p937.htm

http://www.oism.org/nwss/s73p940.htm

http://www.oism.org/nwss/s73p941.htm

Dean In'gs SciFi book "Pulling Through" has plans for a bellows type pump, I believe also of DoE / Kelsy origin in the back that is made from cardboard boxes and uses TP rolls as a filter...

btw: use your legs - not arms... more power in the stroke and won't get tired as soon... Treadles ROCK!

-t
 
Lurking LRRP

Lurking LRRP

Contributing Member
I spent 3 hours in our shelter with my 2 kids the other night and came to the conclusion that we needed a fan of some sort, haven't found anything yet but thought of using those hand held fans you buy at the zoo that take 2 AA bats. one for each of us, or may be a dynamo powered tent fan, solar fan. I don't know, anybody ever seen such a thing??


Lurking LRRP :sh1:
 
Airborne Falcon

Airborne Falcon

Resident Ethicist
IMHO the seashell bicycle design in the best and most efficient. I can take a picture of ours - I am not sure if they are still making them but I have often thought that you could do something very similar with a squirrel cage fan and a bicycle.

Hand cranked fans are not enough - you just can't get it done with a hand-cranked fan. Remember this:

SPACE AND VENTILATION REQUIREMENTS.

(a)Ten square feet of shelter floor area per person shall be provided.

(b)At least 65 cubic feet of space per person shall be provided.

(c)If the shelter capacity is based on minimum space requirements, then at least
three cubic feet of fresh air per minute per person are required.

(d)No filters are required on mechanical ventilation systems other than those
necessary for the normal daily use of the space. Ventilation systems should
be designed to prevent an effective temperature exceeding 85 Fahrenheit.
Wherever practical, owners should design for this condition by increasing the
fresh air supply rather than through air cooling and humidity control equipment.
Click to expand...

Russ
 
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