I am investigating the performance of a model parabolic dish in terms of cooking power, optical efficiency, heat loss coefficient. Which other parameters can be evaluated?
You may want to add economic and non-technical parameters, including: cost, materials, weight (in particular weight to power ratio), easiness to transport and assemble/disassemble. Also, you may consider that the overall performance of a solar cooker also depends on the pot used for cooking, which is related to the kind of food to be cooked.