The temperature distribution during the microwave drying of wooden elements for structural defects in buildings

Abstract

This paper deals with the theory and application of microwave radiation and experimental optimization of microwav e radiation for the distribution of temperature field in the irradiated wooden elements. The article describes the experimental work performed at the Faculty of Civil Engineering, in close cooperation with the company S. P. UNI, s.r.o.. Analysis of the research results was to determine the optimal intensity of microwave emitters and the necessary length of exposure to moist building materials microwave radiation with respect to a particular type of a wooden element. A part of the research was divided into several separate experiments. In each experiment the heating under various conditions was carried out on: I.- samples of the same size, but different weight moisture content, irradiated in the same time periods, II.- samples of the same size, same weight moisture content, irradiated for different time periods.This paper deals with the theory and application of microwave radiation and experimental optimization of microwav e radiation for the distribution of temperature field in the irradiated wooden elements. The article describes the experimental work performed at the Faculty of Civil Engineering, in close cooperation with the company S. P. UNI, s.r.o.. Analysis of the research results was to determine the optimal intensity of microwave emitters and the necessary length of exposure to moist building materials microwave radiation with respect to a particular type of a wooden element. A part of the research was divided into several separate experiments. In each experiment the heating under various conditions was carried out on: I.- samples of the same size, but different weight moisture content, irradiated in the same time periods, II.- samples of the same size, same weight moisture content, irradiated for different time periods.