Implementation of the equivalent-homogeneous-layers-set method in whole-building simulations: Experimental validation
Por:
Barrios G., Rojas J., Huelsz G., Tovar R., Jalife S.
Publicada:
1 oct 2017
Resumen:
This work presents the experimental validation of the
equivalent-homogeneous-layers-set method (EHLS) implemented in
EnergyPlus, a whole-building energy simulation program. The EHLS method
generates a constructive system that is thermally equivalent, under
time-dependent heat transfer, to a wall/roof constructive system that
has air-cavities inside. The equivalent constructive system is a set of
homogeneous layers, some of them with time-dependent equivalent thermal
conductivity. The EHLS method takes into account the heat transfer
through the constructive system by two-dimensional conduction, natural
convection inside the air-cavities and radiation between the air-cavity
surfaces. To validate the EHLS method implemented in EnergyPlus, a whole
year of experimental results were taken from a non-air-conditioned
test-hut constructed with concrete hollow-block walls and the roof
comprised of concrete hollow-blocks and T-beams. The numerical results
show a good agreement with the experimental ones. The differences
between EnergyPlus simulation results and experimental results are of
the same order of magnitude as the differences between EnergyPlus
simulation and experimental results from two adjacent test-huts made of
homogenous constructive systems over the same time-period and reported
previously. (C) 2017 Elsevier Ltd. All rights reserved.
Filiaciones:
Barrios G.:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco 62580, Mor, Mexico
Instituto de Energías Renovables, Universidad Nacional Autónoma de Mexico, Temixco, Mor. 62580, Mexico
Rojas J.:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco 62580, Mor, Mexico
Instituto de Energías Renovables, Universidad Nacional Autónoma de Mexico, Temixco, Mor. 62580, Mexico
Huelsz G.:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco 62580, Mor, Mexico
Instituto de Energías Renovables, Universidad Nacional Autónoma de Mexico, Temixco, Mor. 62580, Mexico
Tovar R.:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco 62580, Mor, Mexico
Instituto de Energías Renovables, Universidad Nacional Autónoma de Mexico, Temixco, Mor. 62580, Mexico
Jalife S.:
Meccano Mexico, Antonio Duenez 170, Torreon 27019, Coah, Mexico
Meccano de México, Antonio Dueñez 170, Zona Industrial, Torreón, Coah. 27019, Mexico
|