Evaluation of Multiyear Weather Data Effects on Hygrothermal Building Energy Simulations Using WUFI Plus

Transient building energy simulations are powerful design tools that are used for the estimation of HVAC demands and internal hygrothermal conditions of buildings. These calculations are commonly performed using a (often dated) typical meteorological year, generated from past weather measurements ex...

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Autores principales: Michele Libralato, Alessandra De Angelis, Giulia Tornello, Onorio Saro, Paola D’Agaro, Giovanni Cortella
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/9d8821813cc84028a47a196f4c0dd8ea
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spelling oai:doaj.org-article:9d8821813cc84028a47a196f4c0dd8ea2021-11-11T15:56:20ZEvaluation of Multiyear Weather Data Effects on Hygrothermal Building Energy Simulations Using WUFI Plus10.3390/en142171571996-1073https://doaj.org/article/9d8821813cc84028a47a196f4c0dd8ea2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7157https://doaj.org/toc/1996-1073Transient building energy simulations are powerful design tools that are used for the estimation of HVAC demands and internal hygrothermal conditions of buildings. These calculations are commonly performed using a (often dated) typical meteorological year, generated from past weather measurements excluding extreme weather conditions. In this paper the results of multiyear building simulations performed considering coupled Heat and Moisture Transfer (HMT) in building materials are presented. A simple building is simulated in the city of Udine (Italy) using a weather record of 25 years. Performing a multiyear simulation allows to obtain a distribution of results instead of a single number for each variable. The small therm climate change is shown to influence thermal demands and internal conditions with multiyear effects. From this results it is possible to conclude that weather records used as weather files have to be periodically updated and that moisture transfer is relevant in energy and comfort calculations. Moreover, the simulations are performed using the software WUFI Plus and it is shown that using a thermal model for the building envelope could be a non negligible simplification for the comfort related calculations.Michele LibralatoAlessandra De AngelisGiulia TornelloOnorio SaroPaola D’AgaroGiovanni CortellaMDPI AGarticleheat and moisture transferwhole building simulationmultiyear weather filesTechnologyTENEnergies, Vol 14, Iss 7157, p 7157 (2021)
institution DOAJ
collection DOAJ
language EN
topic heat and moisture transfer
whole building simulation
multiyear weather files
Technology
T
spellingShingle heat and moisture transfer
whole building simulation
multiyear weather files
Technology
T
Michele Libralato
Alessandra De Angelis
Giulia Tornello
Onorio Saro
Paola D’Agaro
Giovanni Cortella
Evaluation of Multiyear Weather Data Effects on Hygrothermal Building Energy Simulations Using WUFI Plus
description Transient building energy simulations are powerful design tools that are used for the estimation of HVAC demands and internal hygrothermal conditions of buildings. These calculations are commonly performed using a (often dated) typical meteorological year, generated from past weather measurements excluding extreme weather conditions. In this paper the results of multiyear building simulations performed considering coupled Heat and Moisture Transfer (HMT) in building materials are presented. A simple building is simulated in the city of Udine (Italy) using a weather record of 25 years. Performing a multiyear simulation allows to obtain a distribution of results instead of a single number for each variable. The small therm climate change is shown to influence thermal demands and internal conditions with multiyear effects. From this results it is possible to conclude that weather records used as weather files have to be periodically updated and that moisture transfer is relevant in energy and comfort calculations. Moreover, the simulations are performed using the software WUFI Plus and it is shown that using a thermal model for the building envelope could be a non negligible simplification for the comfort related calculations.
format article
author Michele Libralato
Alessandra De Angelis
Giulia Tornello
Onorio Saro
Paola D’Agaro
Giovanni Cortella
author_facet Michele Libralato
Alessandra De Angelis
Giulia Tornello
Onorio Saro
Paola D’Agaro
Giovanni Cortella
author_sort Michele Libralato
title Evaluation of Multiyear Weather Data Effects on Hygrothermal Building Energy Simulations Using WUFI Plus
title_short Evaluation of Multiyear Weather Data Effects on Hygrothermal Building Energy Simulations Using WUFI Plus
title_full Evaluation of Multiyear Weather Data Effects on Hygrothermal Building Energy Simulations Using WUFI Plus
title_fullStr Evaluation of Multiyear Weather Data Effects on Hygrothermal Building Energy Simulations Using WUFI Plus
title_full_unstemmed Evaluation of Multiyear Weather Data Effects on Hygrothermal Building Energy Simulations Using WUFI Plus
title_sort evaluation of multiyear weather data effects on hygrothermal building energy simulations using wufi plus
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/9d8821813cc84028a47a196f4c0dd8ea
work_keys_str_mv AT michelelibralato evaluationofmultiyearweatherdataeffectsonhygrothermalbuildingenergysimulationsusingwufiplus
AT alessandradeangelis evaluationofmultiyearweatherdataeffectsonhygrothermalbuildingenergysimulationsusingwufiplus
AT giuliatornello evaluationofmultiyearweatherdataeffectsonhygrothermalbuildingenergysimulationsusingwufiplus
AT onoriosaro evaluationofmultiyearweatherdataeffectsonhygrothermalbuildingenergysimulationsusingwufiplus
AT paoladagaro evaluationofmultiyearweatherdataeffectsonhygrothermalbuildingenergysimulationsusingwufiplus
AT giovannicortella evaluationofmultiyearweatherdataeffectsonhygrothermalbuildingenergysimulationsusingwufiplus
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