Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An observer for partially obstructed wood particles in industrial drying
  processes   In order for biomass drying processes to be efficient, it is crucial to
achieve the target residual water content within a close margin, since more
conservative drying would result in a waste of energy. A method for a reliable
estimation of the water content is therefore of obvious importance. Ideally,
such a method does not require any expensive sensors. We show reduced order
models and extended Kalman filters can be combined to reliably determine the
water content and temperature of wood particles based on only surface
temperature measurements. The proposed observer works reliably if measurements
are only available for parts of a particle face. It can therefore still be
applied if particle surfaces are partially obstructed, which is a prerequisite
for use in industrial processes and units, such as rotary dryers. The extended
Kalman filter uses a reduced order model that is obtained by applying proper
orthogonal decomposition and Galerkin projection to coupled PDEs that model
heat conduction and water diffusion in anisotropic particles. In contrast to
the original PDE simulation model, the reduced model and the filter based on it
are suitable for real time computations and monitoring.

24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex