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Revista Árvore

Print version ISSN 0100-6762

Abstract

CARVALHO, Solidônio Rodrigues de et al. Thermal instrumentation applied to charcoal production. Rev. Árvore [online]. 2012, vol.36, n.4, pp. 787-796. ISSN 0100-6762.  http://dx.doi.org/10.1590/S0100-67622012000400020.

This work proposes the thermal analysis of rectangular brick kilns which has an individual capacity to produce 30 tons of charcoal for carbonization cycle. The objective of this work was to measure the temperature from thermocouples located in different sites in the kilns and to establish a relationship between temperature and charcoal production. In this sense, the thermal instrumentation predicted the installation of 22 PT100 thermocouples in each kiln. These sensors were connected to a mother boarder that emits the signal to a computer by an electronic circuit and a wireless net. The temperatures were stored in a supervisory system which presented the measured data in form of graphs and tables. Such information can be used to guide and to assist the carbonizing agent during the whole stages of the charcoal production. This measurement procedure with a statistical analysis represents an important tool to reduce the time of drying, pyrolysis and cooling. It can also minimize the losses and increase the thermal efficiency of the production process.

Keywords : Instrumentation; Charcoal; Temperature.

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