I evaluated solar oven usage and wood consumption in northern Nicaragua during both the rainy and dry seasons using surveys, temperature dataloggers placed in solar ovens, and direct measurements of wood consumption. Solar oven owners surveyed reported usage on 79% of days during the dry season, and 41% of days during the rainy season. I compared these results with oven temperature records, and...

Radiative cooling allows to cool down surfaces in a renewable way. It can be combined with solar collection functionality produce heat and cold single device known as Collector Emitter (RCE). In this paper we propose combine RCE compression pumps improve its performance, producing both cold. Two systems are studied: peak load shifting configuration where radiative production for demand occur si...

Chad, in regards to its geographical position is considered as one of the countries world that receives an important annual solar radiation over entire territory. The average sunshine duration about 10 hours North, 8 Center and 7 South. This can be used quantify whole territory evaluate potential. In this paper, some new correlations between have proposed four cities (Abeche, Bitkine, Mongo Ndj...