+ Reply to Thread
Results 1 to 8 of 8

Thread: Air Injection during boiling

  1. #1
    Join Date
    Nov 2011
    Location
    Lemington, Vermont
    Posts
    503

    Default Air Injection during boiling

    Visited one of my relatives sugarhouse in Quebec this week and was introduced to air injection into the back and front pans. Design appeared to be a basic copper piping into the back and front pan attached to a small air pump which releases fresh air into the sap/syrup.

    I was told the concept of injecting air results in an increase in the production of light amber syrup and results in the use of less fuel to boil.

    Anyone employing the air injection concept or have research/articles on it?
    3x10 Leader Inferno Arch
    14,200 Taps
    2 - 14 HP Indiana Vacuum pump
    1800gph Lapierre RO
    10" Lapierre filter press
    2 - 25,000 tap Lapierre releasers
    3 - SS 1500 gallon tanks
    1 - SS 8,400 gallon tank
    8x8 Argo ATV
    50k John Deere generator


    24'x32' sugarhouse

  2. #2
    Join Date
    Feb 2008
    Location
    DeKalb, NY
    Posts
    1,707

    Default

    I have air ijection or a "bubbler". Not sure about the increase in boiling rate as the injected air slightly cools the sap. It does make the production of "Fancy" syrup much easier.

  3. #3
    Join Date
    May 2009
    Location
    UVM Proctor Maple Research Center, Underhill Ctr, VT
    Posts
    6,414

    Default

    Quote Originally Posted by sjdoyon View Post
    Anyone employing the air injection concept or have research/articles on it?
    http://www.uvm.edu/~pmrc/air_injection.pdf

    The major effect is that you make lighter syrup. It does slightly cool the syrup, so evaporation rate is reduced a little (5% or so).
    Dr. Tim Perkins
    UVM Proctor Maple Research Ctr
    http://www.uvm.edu/~pmrc
    https://mapleresearch.org
    Timothy.Perkins@uvm.edu

  4. #4
    Join Date
    Nov 2011
    Location
    Lemington, Vermont
    Posts
    503

    Default

    Quote Originally Posted by DrTimPerkins View Post
    http://www.uvm.edu/~pmrc/air_injection.pdf

    The major effect is that you make lighter syrup. It does slightly cool the syrup, so evaporation rate is reduced a little (5% or so).
    Thank you Dr. Perkins, exactly what I was looking for.
    3x10 Leader Inferno Arch
    14,200 Taps
    2 - 14 HP Indiana Vacuum pump
    1800gph Lapierre RO
    10" Lapierre filter press
    2 - 25,000 tap Lapierre releasers
    3 - SS 1500 gallon tanks
    1 - SS 8,400 gallon tank
    8x8 Argo ATV
    50k John Deere generator


    24'x32' sugarhouse

  5. #5
    Join Date
    Feb 2011
    Location
    vermont
    Posts
    150

    Default

    Anyone have any pics of this? Or a better description? What are you useing to make the air?

  6. #6
    Join Date
    Jan 2006
    Location
    Oneida NY
    Posts
    11,577

    Default

    A blower is used for the air. I do not have one but did look at one a few years ago. It is extremely important that the air source is clean or is charcoal filtered. Anything in the air can contaminate the syrup. I felt it was too risky to try.
    Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
    Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
    Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
    After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.

  7. #7
    Join Date
    Feb 2010
    Location
    Milan Qc
    Posts
    551

    Default

    Quote Originally Posted by bairdswift View Post
    Anyone have any pics of this? Or a better description? What are you useing to make the air?
    http://maple.h2oinnovation.com/en/ev...rs/accessories
    200 Buckets 2015
    14 x 16 Cabane à sucre
    2 x 5 Cantin evaporator

  8. #8
    Join Date
    Nov 2006
    Location
    South Lincoln,vermont
    Posts
    1,802

    Default

    It does cool the sap, but with woodfired evaporators it increases the evaporation, because of the constant fake boil releasing steam just like a piggyback, or steamaway. I have witnessed this with a flowmeter several times. With a oilfired evaporator you will most likely not see any change because of the constant heat delivered by these units, but with woodfired arches and their ever changing heat you will.
    Success is not final,failure is not fatal.It is courage to continue that really counts

    “I have not failed. I’ve just found 10,000 ways that won’t work.”

    – Thomas Edison

+ Reply to Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts