Seasons and Greenhouses
Greenhouse Solar Gain Calculator
This worksheet addresses one practical question: estimate solar energy transmitted through greenhouse glazing. Its formula and assumptions remain visible with the result.
Enter values for transmitted solar gain
Keep Greenhouse Solar Gain units with their measurements.
Input definitions for transmitted solar gain
The Greenhouse Solar Gain input panel defines Glazed area, Solar intensity, and Transmission fraction. Note any Greenhouse Solar Gain conversion.
Glazed area. Default in Greenhouse Solar Gain: 500 sq ft.
Solar intensity. Default in Greenhouse Solar Gain: 180 BTU/hr-ft².
Transmission fraction. Default in Greenhouse Solar Gain: 0.72.
A practical check for glazed area
Place sensors near the crop zone and away from direct heater discharge or unrepresentative sun. Several points may be needed in a large structure. Need water volume per degree? Open Greenhouse Thermal Mass Water Calculator.
Transmitted solar gain: practical constraint
Orientation, clouds, framing, and crop shading change actual gain. The Frost Free Growing Season Calculator provides frost-free season.
What Greenhouse Solar Gain answers
Estimate solar energy transmitted through greenhouse glazing. Greenhouse Solar Gain limits that task to Glazed area, Solar intensity, and Transmission fraction.
Save Transmitted solar gain with the Greenhouse Solar Gain units and scenario name.
Arithmetic used for Greenhouse Solar Gain
Greenhouse Solar Gain multiplies factors from Glazed area, Solar intensity, and Transmission fraction to produce transmitted solar gain.
Glazed area at 500 sq ft, solar intensity at 180 BTU/hr-ft² and transmission fraction at 0.72 produces 64,800.00 BTU/hr in the demonstration case.
What the transmitted solar gain output means
Greenhouse Solar Gain summarizes its formula as Transmitted solar gain. For estimated maturity day, use Crop Maturity Day Calculator.
Common questions about glazed area
Can Greenhouse Solar Gain guarantee field or greenhouse conditions?
No. The transmitted solar gain value reflects the entered dates or readings. Confirm it with a current forecast or sensors positioned near the crop.
How does “Orientation, clouds, framing, and crop shading change actual gain.” affect transmitted solar gain?
Greenhouse Solar Gain uses the entered numbers only. Let glazed area reflect that condition before calculating.