Memorias de investigación
Ponencias en congresos:
Advanced characterization of a coffee fermenting tank by multi-distributed wireless sensors: spatial interpolation and phase diagrams
Año:2013
Áreas de investigación
  • Tecnología de alimentos,
  • Ingenierías
Datos
Descripción
In coffee processing the fermentation stage is considered one of the critical operations by its impact on the final quality of the product. However, the level of control of the fermentation process on each farm is often not adequate; the use of sensorics for controlling coffee fermentation is not common. The objective of this work is to characterize the fermentation temperature in a fermentation tank by applying spatial interpolation and a new methodology of data analysis based on phase space diagrams of temperature data, collected by means of multi-distributed, low cost and autonomous wireless sensors. A real coffee fermentation was supervised in the Cauca region (Colombia) with a network of 24 semi-passive TurboTag RFID temperature loggers with vacuum plastic cover, submerged directly in the fermenting mass. Temporal evolution and spatial distribution of temperature is described in terms of the phase diagram areas which characterizes the cyclic behaviour of temperature and highlights the significant heterogeneity of thermal conditions at different locations in the tank where the average temperature of the fermentation was 21.2 °C, although there were temperature ranges of 4.6°C, and average spatial standard deviation of ±1.21ºC. In the upper part of the tank we found high heterogeneity of temperatures, the higher temperatures and therefore the higher fermentation rates. While at the bottom, it has been computed an area in the phase diagram practically half of the area occupied by the sensors of the upper tank, therefore this location showed higher temperature homogeneity
Internacional
Si
Nombre congreso
8th CIGR International Technical Symposium on "Advanced Food Processing and Quality Management"
Tipo de participación
960
Lugar del congreso
Guangzhou, China on November 3-7, 2013
Revisores
Si
ISBN o ISSN
00000000
DOI
Fecha inicio congreso
03/11/2013
Fecha fin congreso
07/11/2013
Desde la página
1
Hasta la página
4
Título de las actas
Proceedings of the 8th CIGR Section VI International Technical Symposium 'Advanced Food Processing and Quality Management' Guangzhou, China 3-7 November, 2013
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: LPF-TAGRALIA: Técnicas Avanzadas en Agroalimentación
  • Departamento: Ingeniería Rural