It’s amazing that you are kind enough to share your knowledge. Thank you.

Very generous sharing of info, Ken. Thank you for all you do for the Fluid Bed roasting community!

Love that you're sharing your findings with the DIY community! Just picked up a Valenta 7, but one day I would love to build a little 1-kilo fluid bed roaster for home. Sounds like a fascinating process!

Looks like a Sivetz design from 1970's

Thanks for the video Ken. I was thinking of buying a sheet roller to make up prototypes. Your video has answered my questions.

@coffeecraftersllc

10 ай бұрын

Glad we could help!

You answered most of my questions. Now I have more. Thank you!

Sorry about your issues on your big roaster. I had the benefits of my best friend at Boeing Areospace helping me with the same issues. I sent you a email on your big roaster design , you will see a familiar design from 7 years ago

Informative

Vortex, swirling, low pressure, high pressure, cfm. None you can measure inside your chamber.

Really helpful content, Ken. Thank you for making these videos. Question, what do you think of the flat plate fluid bed roasters like the typhoon? Seems like it could be very compact and maybe a bit easier to manufacture for a diy guy.

What’s the ideal opening size for a hobby roaster cone hopper, less than 2 lbs?

Thank you for the really informative video, very generous of you to share the ups and downs of your journey. I’ve been plugging away at a couple of 1lb and 1/2lb designs for a while and am fascinated by your comments about high and low pressure, especially for chaff collection. So I have a couple of rookie questions: Is the pressure at the centre of the vortex high or low? If low, why not vent there? Secondly, will the pressure in the low pressure area equalise (or get close to) if a cyclone is fitted down the line? Can this be mitigated with a powered cyclone? I might have to stick a bunch of short threads in one of my mockups to see where the air goes 😂

@kenlathrop7106

Жыл бұрын

The center of the vortex changes with the load size plus the hopper bean mass volume fills the hopper on full loads making the top of the hopper the only exit option. The benefit came from a consistent re-introduction of the hot air stream to the top of the bean bed, no matter what load size. What was really interesting is how very small changes to the roast chamber design killed the vortex. If we weren't using the computer simulation we would never have seen it.

@ivankruk6634

2 ай бұрын

​@@kenlathrop7106great video ken thanks! what is the temp difference between the input and output air before and after you optimized the air vortex for a given bean mass? I have a diy 4 pound conical hopper and would like to know where am I standing in terms of energy efficiency... Any help where to start to optimize it without much complexity? Thanks again

@ivankruk6634

2 ай бұрын

I mean average delta temp between air going into the hopper and air exiting the hopper