Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Validation of daylighting model in CODYRUN building simulation code   CODYRUN is a multi-zone software integrating thermal building simulation,
airflow, and pollutant transfer. A first question thus arose as to the
integration of indoor lighting conditions into the simulation, leading to a new
model calculating natural and artificial lighting. The results of this new
daylighting module were then compared with results of other simulation codes
and experimental cases both in artificial and natural environments. Excellent
agreements were obtained, such as the values for luminous efficiencies in a
tropical and humid climate. In this paper, a comparison of the model output
with detailed measures is presented using a dedicated test cell in Reunion
Island (French overseas territory in the Indian Ocean), thus confirming the
interest for thermal and daylighting designs in low-energy buildings.
Introduction Several software packages are available for thermal and airflow
simulation in buildings. The most frequently used are ENERGY+ [1], ESP-r [2],
and TRNSYS [3]. These applications allow an increasing number of models to be
integrated, such as airflow, pollutant transport, and daylighting. In the
latter category, we may note ENERGY+, ESP-r and ECOTECT [4] software. After
more than 20 years of developing a specific code named CODYRUN, we decided to
add a lighting module to our software. This paper therefore provides some
details on this evolution and elements of validation. The CODYRUN initial
software and its validation Developed by the Physics and Mathematical
Engineering Laboratory for Energy and Environment at the University of Reunion
Island, CODYRUN [5-14] is a multi-zone software program integrating ventilation
and moisture transport transfer in buildings. The software employs a zone
approach based on nodal analysis and resolves a coupled system describing
thermal and airflow phenomena. Numerous validation tests of the CODYRUN code
were successfully applied to the software. Apart from the daylighting model,
the majority applied the BESTEST procedure [15]. The International Energy
Agency (IEA) sponsors a number of programs to improve the use and associated
technologies of energy. The National Renewable Energy Laboratory (NREL)
developed BESTEST, which is a method based on comparative testing of building
simulation programs, on the IEA's behalf. The procedure consists of a series of
test cases buildings that are designed to isolate individual aspects of
building energy and test the extremes of a program. As the modelling approach
is very different between codes, the test cases are specified so that input
equivalency can be defined thus allowing the different cases to be modelled by
most of codes. The basis for comparison is a range of results from a number of
programs considered to be a state-of-art in United States and Europe.
Associated with other specific comparisons, a very confident level of
validation was obtained for the CODYRUN initial software [8].

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The categories of this paper are: stat
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat
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The categories of this paper are: math
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat