Also, if you can find a minature version of an air compressor, you can use a vortex cooler

or if you get the power use a peltier plate.

With the vortex tube you'd sound like a tyre going down lol.

for a power source, you could use your body. have aliquid in a near vacuum with a turbine-like electric generator. your body heat will boil the liquid, which will turn the turbine.

Use step pressure to drive it. Use a fan to blow air into a chamber to create pessure, heat sink the chamber and blow air past it. Allow the pressurised air to leak into clothing slightly inflating it and then it will leak away through the holes in the fabric. Constant circulation of air will keep humidity down around the skin and allow heat to be carried away faster.

to the Dept of Homeland Security.

 

I was at a conference last fall about the needs of the Department of Homeland Security. The head honcho of the Bio-Hazards Division talked about their requirements.

 

Their unit had to deal with the anthrax attack on the Capital Building. The existing bio-hazards suits are designed to be worn for a very short period of time. It takes a long time to get into them, and a long time to get out of them. However - in order to do an effective cleanup, the workers had to wear them for hours at a time. They do not have any kind of cooling mechanism, they don't even have a way that the wearer can get a sip of water without completely decontaminating and taking off the suit.

 

Just to let you know that there is a real incentive for someone to come up with an effective wearable cooling unit - if it could be worn and would function beneath a bio-hazard suit.

and idealy not as costly as the sort used in space suits.

It'd would be hard to use a space suit anyways, as we have air pressure,

I was thinking more of the tubes that hold the coolant throught the suit, maybe woven into spandex or lycra. that could be wearable undeneath one of these possitive pressure bio suits

I get ya,

Well, someone had mentioned that the cooling process moves through the blood in your wrists? That may be true, but look at it this way. You could use some sort of hat/cap system that could cool you down.

 

Now dont say this wouldnt work, because think of it like this. When your out walking or running, or just doing somthing strenuous enough to get you a sweat, and you dump water on your head, doesnt that cool your whole body down? It does for me, I might be wrong but, I think you should try it, or maybe I will try and come up with somthing. Just some ideas.?

 

Good luck.

idea: have a spandex-type suit with small rubber tubes running all over it like blood vessels. have a body heat-powered generator power a small pump to pump the fluid through the tube.

that wouldnt help because:

(a) movement [of liquid] and electrical current creates heat

(b) it would only circulate the heat, would dispose of it.

 

what the blood cooling effect is, is bringing hot blood to the surface of the body, where it can be lost quicker.... external "blood system" or so to say, would not have a similar effect.

that wouldnt help because:

(a) movement [of liquid] and electrical current creates heat

(b) it would only circulate the heat' date=' would dispose of it.

 

what the blood cooling effect is, is bringing hot blood to the surface of the body, where it can be lost quicker.... external "blood system" or so to say, would not have a similar effect.[/quote']

 

isn't an "external 'blood system'" the basis for the cooling suits astronauts wear?

The head and the feet are where heat is lost most readily. we've touched on a cap/hat system for the head but what about cooling the feet? It's easier to hide a cooling system in trainers or boots and there a pump can very easily be built in the sole or heel powered by walking/moshing. Move a fluid around the inside of the shoe via narrow tubing and secrete some sort of heat sink in there to dissipate heat.

 

Just a thought but it's the way I would head as the cooling probably doesn't have to be that great to provide relief and maybe wouldn't need an 'active' cooling system.

 

Sadly, I reckon the idea is flawed from the outset though if we stick within the parameters of cooling only a small area of skin. To reduce the temperature of the entire body when it is being heated quite so much would need that small area to be cooled to an uncomfortable temperature ("Hey I feel nice and cool but if I bend my wrist my hand will snap off!").

 

I would go with YT's suggestion of a garment that would fit under clothing and cool more surface area although his use of the word "spandex" is utterly uncalled for and causes images of 80's rock stars strutting their stuff to come to mind. Unforgiveable YT!