Barn temperature last 36 h
solid = temp, dotted = humidity
Upper 98° / 56%
Lower 85° / 33%
Outside 86° / 26%
Water in the air — inside vs outside g/m³, last 36 h
Inside 9.9Outside 7.9
When green sits below blue, outside air is drier and good to pull in.
Dryer effectiveness — outside air vs barn air last 36 h
4.7 g/kg
Intake air can take on
6.0 g/kg
Outside air can take on
+13.7 g/kg
Water leaving, exhaust minus intake
5.8%
Exhaust air would hold the top of the bin at
3.9%
Intake air alone (fan only) would hold nuts at
Where the air would take the nuts · equilibrium moisture of the intake air and the outside air; the color bands are the Bin Map colors
A line sitting in the tan band means that air, by itself, parks the nuts at 8 to 9%. Above the red line nothing reaches target. Gray columns are night.
How hard the air pulls · water each kg of air can still carry away (left), as pounds of water per hour per 1,000 cfm of fan air (right)
An upper bound: wet nuts give water up this fast, nuts near target give up far less. The shaded gap is what the barn adds to (or takes from) the outside air before the fans get it.
Intake air (Lower)
Outside station
night
Nights (10 pm to 7 am): exhaust air would hold the top of the bin at 7.6%, intake capacity 2.0 g/kg.
Days: 6.5%, intake capacity 2.3 g/kg.
Capacity is the water the air can absorb before it is saturated at its wet-bulb temperature; evaporation cools the air, so this is well under the dry-bulb deficit. Equilibrium moisture is where nuts stop losing water in that air (Modified Henderson isotherm, oil-nut constants, approximate until fitted to our probes). Water leaving is exhaust (Upper) minus intake (Lower) per kg of air; a direct-fired gas burner itself adds about 0.3 g/kg of that at the current heat. Download the 15-minute table
Outside station — Wheatland (BRW)
89°F
22% humidity · dew point 45°
Wind1 mph W · gust 5
Rain today0.00"
as of Sat 5:15 PM
Rain — last 14 days
Daily rainfall in inches at the Wheatland station.
Source: Weather Tools station via BlightCaster.