Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental and numerical measurement of the thermal performance for
  parabolic trough solar concentrators   Parabolic trough mirror plants are a popular design for the conversion of
solar energy to electricity via thermal processes. The receiver unit (RU) for
absorbing the concentrated solar radiation is limited to maximum temperature
(580 degree Celsius) and is responsible for efficiency losses mainly via
thermal radiation. We built a RU in the laboratory to study the thermal
performance for different designs and we companied this study with a
mathematical module implemented on a simulation code. In this work, the
simulation and the first set of experiments show a good agreement, validating
the applicability of the code.

31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol