Equations
, , and . "Predicted Efficiency of a Low-Temperature Nanofluid-Based Direct Absorption Solar Collector." J. Sol. Energy Eng. 131 (2009) 041004.
, and . "High Rayleigh Number Laminar Convection in Low Aspect Ratio Enclosures With Adiabatic Horizontal Walls and Differentially Heated Vertical Walls." Journal of Heat Transfer 104.1 (1982) 103–110.