Design a solar air heater panel for space heating with air flow rate, outlet temperature, and efficiency.
Input Parameters
Results
--
Collector Efficiency
%
--
Heat Output
BTU/hr
--
Outlet Temp
°F
--
Temp Rise
Δ°F
Note: Solar air heaters are 40-60% efficient. Optimal air flow is 2-4 CFM per ft² of collector. Higher flow = more heat but lower outlet temp.
Reference
Solar Input = Irradiance x Collector Area [BTU/hr]
Heat Output = Solar Input x Efficiency
Air Heat Capacity = CFM x 1.08 [BTU/hr/°F]
Temp Rise = Heat Output / (CFM x 1.08)
Outlet Temp = Inlet Temp + Temp Rise