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do you have a working link of the videos of it in use? i just have a little photobucket square saying the movie has been moved or deleted!cheers,martin

What would you like to see? I had an issue with my photo bucket account a while back and lost a lot of data. I might be able to re do a video. If I haven't use any of the pieces for something else.
 
i mainly want to see how you've attached it to your mashtun to deliver the steam,it may be in a picture but i can't see the majority of them!
also,when you were using steam to boil,how did you get the steam to the coil?did you valve the output somewhere?cheers,martin
 
Here is a shot of the steam mixer built for the second steam injection system https://picasaweb.google.com/kevin.ladue/NewSystemSteamMixer#5156297767550785986. Steam enters through small tube at right, wort through side of right hand tee, mixture leaves out side of left hand tee. After testing the screen was shortened to 1" and the transparent tubing was replaced with stainless tubing for better support for the leaving tubing. The primary principals involved here are high velocity/turbulent flow over screen, and screen provides boundary for steam absorption into the liquid. At high steam flow the sound is a sizzling sound like frying bacon, at low steam flow it is not noticeable.
When you route the boiler flow through the mixer to the mash tun you will not need to move plumbing connections, just adjust fire and water flow for the various modes, strike water, step heating, and fly sparging. Having built the first steam injection system 8 years ago and brewed quite a few beers with it, and tought SWMBO to operate it, it is not difficult to use. Here is a picture of the old steam system https://picasaweb.google.com/kevin.ladue/OldBrewingSystem#5035126853377761794.
 
ok,that makes sense,sort of like a mini rims tube with the element replaced by steam injection!
originally i pictured the steam being injected directly to the mash via the false bottom or whatever is in your system which is why i thought it must be valved in order to fly sparge.
what is the actual mixer part? is it an off the shelf item?
cheers,martin:)
 
The mixer is stainless steel screen wire, 12 wires/inch, rolled over a 1/8" rod and expanded to fit over a 1/4" stainless tube. the screen was then silver soldered to the tube with 56% silver as my welding skills are not anywhere close to GreenMontis, with the correct flux and a butane micro torch, it is not difficult.
This was a scaled copy of the same process used for water heating in sterilizing bottling equipment and starch cooking for paper industry. The steam injection lets you transfer much more heat than is possible with electric RIMS system, but the automatic control is much more complicated and expensive. For a manual control scheme I used a needle valve in the gas supply to the burner, and a needle valve and flow meter for the water flow into boiler. There is no outlet valve in the boiler so pressure developed is a function of plumbing back pressure only, no explosion potential.
 
ok,that makes sense,sort of like a mini rims tube with the element replaced by steam injection!
originally i pictured the steam being injected directly to the mash via the false bottom or whatever is in your system which is why i thought it must be valved in order to fly sparge.
what is the actual mixer part? is it an off the shelf item?
cheers,martin:)

No, its not an off the shelf item.
It sounds like you may have it. Kladue is the guy to listen to though. I've only followed in his foot steps. He soldered his screen material, and I welded mine. Believe it or not, for me it was easier to weld then solder. This is a pic of the two I have on hand for my build.
P1010230.jpg
 
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