Articles
DRYING OF MEDICINAL PLANTS IN A PLASTIC-HOUSE TYPE SOLAR DRYER
Article number
344_9
Pages
79 – 85
Language
Abstract
A solar heated dryer in modular design has been developed at the Institute for Agricultural Engineering in the Tropics and Subtropics of Hohenheim University.
The roof of a standard plastic film covered greenhouse is used as solar air heater area.
A batch dryer has been installed inside the greenhouse.
Different medicinal plants have been dried in a high quality with this type of dryer.
A comparative economic evaluation showed, that the plastic-house type solar, dryer is economically more efficient than the conventional drying system, as soon as supplementary heating is used.
The roof of a standard plastic film covered greenhouse is used as solar air heater area.
A batch dryer has been installed inside the greenhouse.
Different medicinal plants have been dried in a high quality with this type of dryer.
A comparative economic evaluation showed, that the plastic-house type solar, dryer is economically more efficient than the conventional drying system, as soon as supplementary heating is used.
Authors
J. MÜLLER, T. CONRAD, M. TEŠIC, J. SABO
Keywords
Solar energy, medicinal plants, drying, economics, unit costs of solar drying
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