UVM Extension Ag Engineering

Forced Air Cooling: Field Trial Results

Last summer we performed a series of precooling trials using small-scale forced air coolers to cool eggplant, watermelon, strawberries, blueberries, zucchini, and roasting peppers. The forced air cooling was done in parallel with standard room cooling and was shown to result in cooling rates ranging from 1.2 to 2.2 times faster than room cooling. This […]

Construction Details for a Counter-top Forced Air Cooler

To learn more about forced air cooling visit go.uvm.edu/forcedaircooling To download the PDF version of this plan click here! Farms that need to cool smaller volumes of produce can also benefit from forced air cooling. Whether cooling stacked pallets, pallet bins or individual cartons, the same principals apply. A smaller pallet cooler was noted on […]

Construction Details for a Pallet Forced Air Cooler

To learn more about forced air cooling visit go.uvm.edu/forcedaircooling To download the PDF version of this guide click here! Framing: 2”x12” lumber to make a 43” wide x 74” tall x 11-1/4” deep plenum for suction air distribution. Plenum Panel: 3/8” CDX Plywood with an 11-1/4” circle cut out for the blower suction inlet. Position […]

Forced Air Cooling On The Farm

A downloadable/printable pdf of this article is available here. Introduction The preservation of quality in fresh market and storage crops on small and medium-sized farms in the Northeast depends on the rapid reduction of pulp temperature and maintenance of relatively low temperatures to slow metabolic respiration. There is strong foundational work showing that rapidly reducing […]

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