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Revista Facultad Nacional de Agronomía Medellín
versão impressa ISSN 0304-2847versão On-line ISSN 2248-7026
Resumo
GUERRA GARCIA, Lina Marcela et al. Bioclimatic performance of wet coffee processing facilities: conditions for workers and coffee. Rev. Fac. Nac. Agron. Medellín [online]. 2022, vol.75, n.1, pp.9763-9772. Epub 31-Jan-2022. ISSN 0304-2847. https://doi.org/10.15446/rfnam.v75n1.96247.
This study aimed to evaluate the bioclimatic performance of three wet coffee processing facilities in Colombia, focused on the conditions for workers and coffee parchment, through computer simulation. In addition to temperature and relative humidity, the Wet-Bulb Globe Temperature index (WBGT) was simulated during the highest coffee production month. The proposed simulation model was able to predict hygrothermal behavior within the three coffee processing facilities. Case 3 presented the warmest environment, and case 2 the most humid environment concerning the appropriate conditions for the coffee and the worker. The WBGT index limit was exceeded in case 3. Since this type of facility emits large amounts of heat and steam, constructive modifications are suggested to improve the environmental conditions of workers and coffee. Mainly, the physical separation of the heat exchangers is recommended, which ideally should be outside the post-harvest facility. The steam produced in the drying process should be quickly evacuated with ventilation strategies. Additionally, the use of strategies that reduce the energy gain from solar radiation is suggested.
Palavras-chave : Computational simulation; Hygrothermal behavior; Post-harvest coffee; Thermal comfort; WBGT index..