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Nowadays, there is increased interest in valuing energies that are often unused. This phenomenon is called energy harvesting. Thermoelectric generators are often used to -harvest- thermal energy and to transform it into electrical energy. In the preliminary study presented in this paper have the purpose to use thermoelectric elements to capitalize thermal energy release outdoor by the air conditioning equipment. The results of experimental research showed a mean temperature difference (?t) of 50-C between the hot ...

Due to the rising demand of energy, in the last years is a growing interest to develop new equipment-s and to improve the existing, to produce as much as possible energy from renewable sources. Therefore, in this article are studied the effects of two shrouds geometries over the patterns of flow and over the velocity-s distributions. This study was performed experimentally in the laboratory using an experimental stand a with closed-circuit trough water was recirculated and a Particle Image Velocimetry (PIV) system...