Characterization of dielectric properties of residual ashes obtained from rice husk and annoni grass.

This paper presents a study about the characterization of dielectric properties (dielectric constant [Formula: see text] and dielectric-loss constant [Formula: see text]) of samples derived from two different biomass types: rice husk ash (RHA) and annoni grass ash (AGA).The procedure is carried out using the resonant cavity method along with a vector network analyzer. For this purpose, four different ashes were produced, by burning rice husk and annoni grass at two different temperatures and burning times: 400 °C/30 min (RHA40030 and AGA40030) and 800 °C/5 h (RHA8005h and AGA8005h).