Mini Summary of Funk

Parametric Model of Solar Cooker Performance
P.A. Funk and D.L. Larson
Bradley University of Peoria, IL
University of Arizona, Tucson AA
1997

Mini Summary:

Parametric Model for prediction of cooking power of solar cookers.
Based on: Solar Intercept Area, Overall Heat Loss Coefficient, Absorber Plate Thermal Conductivity

Intro: each cooker "needs to be suited to its specific climate, customs and economic factors"

Determined factors based on perceived most influential design parameters

Previous testing "identified solar input and overall heat loss coefficient as primary factors" adds internal heat transfer efficiency as third factor.

Heat loss from box cookers added or subtracted by "adding/ removing glazing, adding vents, or adding foam insulation."

Reflectivity of materials drastically diminished by dust/weathered/ wrinkled surfaces.

Conclusion:
Parametric model = needs improvement and evaluation, but "provides a basis for the systematic understanding of solar cooker performance."