Substitute for a compressor?

[100]

Hi!

I'm wondering if I could trouble the techies in this forum for a moment of their time ? :)

Think about this

[Parker stock code : 145.5IR

3/8" connector 8mm port solenoid valve... £35.]

+ Two Immersion heaters in a bath of boiling water at 100'c

In a sealed copper container.

Two valves (one entry to box) and (one exit to box), conduct the cold gas into the box from the 'suction line'.

Cold gas is heated in chamber, and exits by being 'pulled' by the exit solenoid into the condensor. This creates a vacuum, which draws in more cold gas. Recurring cycle.

Would this work? I've changed my habits into thinking recently as I'm taking a break from my VPC sys.

[gkiing]

I dount know, but there are some strange compressor designs out there. Maybe you could mspaint up a diagram or something.

[Epsilon]

Probably there is amonia in it as a gas :)

This technic is called "absorption cooling". This type of cooling isn't very strong, but it can be made small. The good thing of this type of cooling, is that de heating (the hot water in your story) can ben done with electricity, OR burning butane. It makes it portable because of the butane tank.

[100]

Nice translation Epsilon! Thanks!

[pythagoras]

http://www.nh3tech.org/icons/smhot.gif

http://www.nh3tech.org/icons/smcold.gif

http://www.nh3tech.org/icons/continue.gif

They work using Daltons law.

Regards

John.

[HawainPanda]

Originally posted by Epsilon
Probably there is amonia in it as a gas :)

This technic is called "absorption cooling". These type of cooling isn't very strong, but it can be made small. The good thing of this type of cooling, is that de heating (the hot water in your story) can ben done with electricity, OR burning butane. It makes it portable because of the butane tank.

oh man, i had no clue wat 100 meant, but when i read ur post epsilon i remember reading that in physics, yeah i think some scientists tried that in Hawaii, they did a theoretical model and the plant itself absorbed 80% of the power it produced, compared to a conventional plant that uses less than 1% so im thinking...the compressor would be super weak...or atleast if u want to get it working its gonna take up alotta juice

[pythagoras]

Wonder if they could shrink one of these for mobile computers.

Regards

John.

[Redwolf]

Absorbtion doesn't work that well. Ever seen one of those RV refrigerators that took all day to come down to 40F? Their big and bulky.

These small absorbtion systems have Water, Amomonia, and a bit of Hydrogen to help raise the pressure. Made mostly out of steel.

Closest type of system out there are those "Heat Pipe" But they are relitivly small.

[Unknown_road]

they are made out of steel because copper and ammonia can't stand each other. :p:

[chilly1]

There used to be a syssystem by Crosley called an icyball it was an ammonia absorber ans had no moving parts. There is also lythium bromice absorbers, Ammonia absorbers are limited to -10 to -15 F and the lithium bromide absorbers are limited to 20 to 40 degreesF There may be colder ones out there but none that I have seen.

These work by taking advantage of the endothrermic reaction that occurs when ammonia or lithium bromide s mixed with H2O

[pythagoras]

Now your really showing your age;)

Have you seen one of these?

http://www.ggw.org/~cac/IcyBall/IB-Diag-lg.GIF

[gkiing]

What is that?

[EDIT] looks like some sort of distillery apparatus

[pythagoras]

Its the crosely icyball circa 1858:D

[HawainPanda]

lmao, whoa!!!

[Redwolf]

Nice.. Old crazy ways of doing things has always fasinated me. Look at some of the machines ppl have invented back in the late 1800 early 1900s. Truely amazing.

Once Fuel-Cells become cheep in price. Absorbtion refrigeration might become the next best thing. Seeing some fuel cells produce a large amount of heat. Or maybe just large efficent vertions of Heat-Pipes with cheap CO2.

[chilly1]

Actually one just sold on Ebay for 600.00
How you would use it , heat the upper ball and the lower ball would ice up.

[100]

TY :)