Abstract

TORRES-GALLO, Ramiro; MIRANDA-LUGO, Pedro J.  and  MARTINEZ-PADILLA, Keimer A.. Design and construction of a hybrid system of heating air by combustion of biomass and solar radiation, using phase change material (PCM) as a source of thermal storage, for cassava drying. TecnoL. [online]. 2017, vol.20, n.39, pp.71-83. ISSN 0123-7799.

Abstract This study consisted of designing, building and validation a hybrid system of heating air by combustion of biomass and solar radiation, using phase change material (PCM) as a thermal storage source, for cassava drying, a small scale. The dryer consists of a centrifugal fan, two solar collectors, a fuel burner solid (rice husk) and a tray dryer. System validation was performed drying up Yucca. The PCM allowed to follow the drying process, even when the solar radiation was below 116,22 ± 31,94 W/m², being able to maintain drying air temperatures in the two solar collectors at 46 ± 4,29 °C and 51 ± 4,08 °C for an additional 45 min. The drying time was 10 h and 45 min, the efficiency of the solar collectors was 43.91 % and the rice husk burner of 36.72 %.

Keywords : Drying; cassava; PCM; hybrid; heating.

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