CONTROL OF TEMPERATURE AND VELOCITY OF DRYING AIR IN A MEDICINAL PLANT DRYER

Authors

  • Mauro de Oliveira Prates
  • Tarcísio de Assunção Pizziolo
  • Evandro de Castro Melo
  • Ronicely Pereira Rocha
  • José Vitor Nicácio

DOI:

https://doi.org/10.13083/reveng.v19i2.148

Keywords:

inversor de frequência, secagem, sistemas de controle

Abstract

This study reports installation of a system to control temperature and velocity of the air in a medicinal plant dryer using a PIC16F877A microcontroller. The air velocity was monitored by an anemometer and controlled by a frequency inverter. The temperature was measured by LM35 sensor and controlled with a TRIAC. The microcontroller performed actions of PID that determines the pulse of a PWM signal, which turns on the frequency inverter and also the TRIAC. The comparison between the manual and automated controls showed that automatic method reduced energy consumption by 63 %.

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Published

2011-04-14

How to Cite

Prates, M. de O., Pizziolo, T. de A., Melo, E. de C., Rocha, R. P., & Nicácio, J. V. (2011). CONTROL OF TEMPERATURE AND VELOCITY OF DRYING AIR IN A MEDICINAL PLANT DRYER. Engineering in Agriculture, 19(2), 101–111. https://doi.org/10.13083/reveng.v19i2.148

Issue

Vol. 19 No. 2 (2011)

Section

.

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