Effect of HVAC’s Management on Indoor Thermo-Hygrometric Comfort and Energy Balance: In Situ Assessments on a Real nZEB

This paper proposes the analysis of real monitored data for evaluating the relationship between occupants’ comfort conditions and the energy balance inside an existing, nearly zero-energy building under different operational strategies for the heating, ventilation, and air-conditioning system. Durin...

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Autores principales:	Rosa Francesca De Masi, Antonio Gigante, Valentino Festa, Silvia Ruggiero, Giuseppe Peter Vanoli
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	nZEB HVAC management monitoring campaign indoor comfort load matching computational fluid dynamics Technology T
Acceso en línea:	https://doaj.org/article/e681c03f47c74968a57e72ac58c047a3
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spelling	oai:doaj.org-article:e681c03f47c74968a57e72ac58c047a32021-11-11T15:57:37ZEffect of HVAC’s Management on Indoor Thermo-Hygrometric Comfort and Energy Balance: In Situ Assessments on a Real nZEB10.3390/en142171871996-1073https://doaj.org/article/e681c03f47c74968a57e72ac58c047a32021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7187https://doaj.org/toc/1996-1073This paper proposes the analysis of real monitored data for evaluating the relationship between occupants’ comfort conditions and the energy balance inside an existing, nearly zero-energy building under different operational strategies for the heating, ventilation, and air-conditioning system. During the wintertime, the adaptive comfort approach is applied for choosing the temperature setpoint when an air-to-air heat pump provides both heating and ventilation. The results indicate that in very insulated buildings with high solar gains, the setpoint should be decided taking into consideration both the solar radiation and the outdoor temperature. Indeed, when the room has large glazed surfaces, the solar radiation can also guarantee acceptable indoor conditions when a low setpoint (e.g., 18.7 °C) is considered. The electricity consumption can be reduced from 17% to 43% compared to a conventional setpoint (e.g., 20 °C). For the summertime, the analysis suggests the adoption of a dynamic approach that should be based on the outdoor conditions and differentiated according to room characteristics. Considering the indoor comfort and the maximization of renewable integration, the direct expansion system has better performance than the heat pump; this last system should be integrated with a pre-handling unit to be energy convenient.Rosa Francesca De MasiAntonio GiganteValentino FestaSilvia RuggieroGiuseppe Peter VanoliMDPI AGarticlenZEBHVAC managementmonitoring campaignindoor comfortload matchingcomputational fluid dynamicsTechnologyTENEnergies, Vol 14, Iss 7187, p 7187 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	nZEB HVAC management monitoring campaign indoor comfort load matching computational fluid dynamics Technology T
spellingShingle	nZEB HVAC management monitoring campaign indoor comfort load matching computational fluid dynamics Technology T Rosa Francesca De Masi Antonio Gigante Valentino Festa Silvia Ruggiero Giuseppe Peter Vanoli Effect of HVAC’s Management on Indoor Thermo-Hygrometric Comfort and Energy Balance: In Situ Assessments on a Real nZEB
description	This paper proposes the analysis of real monitored data for evaluating the relationship between occupants’ comfort conditions and the energy balance inside an existing, nearly zero-energy building under different operational strategies for the heating, ventilation, and air-conditioning system. During the wintertime, the adaptive comfort approach is applied for choosing the temperature setpoint when an air-to-air heat pump provides both heating and ventilation. The results indicate that in very insulated buildings with high solar gains, the setpoint should be decided taking into consideration both the solar radiation and the outdoor temperature. Indeed, when the room has large glazed surfaces, the solar radiation can also guarantee acceptable indoor conditions when a low setpoint (e.g., 18.7 °C) is considered. The electricity consumption can be reduced from 17% to 43% compared to a conventional setpoint (e.g., 20 °C). For the summertime, the analysis suggests the adoption of a dynamic approach that should be based on the outdoor conditions and differentiated according to room characteristics. Considering the indoor comfort and the maximization of renewable integration, the direct expansion system has better performance than the heat pump; this last system should be integrated with a pre-handling unit to be energy convenient.
format	article
author	Rosa Francesca De Masi Antonio Gigante Valentino Festa Silvia Ruggiero Giuseppe Peter Vanoli
author_facet	Rosa Francesca De Masi Antonio Gigante Valentino Festa Silvia Ruggiero Giuseppe Peter Vanoli
author_sort	Rosa Francesca De Masi
title	Effect of HVAC’s Management on Indoor Thermo-Hygrometric Comfort and Energy Balance: In Situ Assessments on a Real nZEB
title_short	Effect of HVAC’s Management on Indoor Thermo-Hygrometric Comfort and Energy Balance: In Situ Assessments on a Real nZEB
title_full	Effect of HVAC’s Management on Indoor Thermo-Hygrometric Comfort and Energy Balance: In Situ Assessments on a Real nZEB
title_fullStr	Effect of HVAC’s Management on Indoor Thermo-Hygrometric Comfort and Energy Balance: In Situ Assessments on a Real nZEB
title_full_unstemmed	Effect of HVAC’s Management on Indoor Thermo-Hygrometric Comfort and Energy Balance: In Situ Assessments on a Real nZEB
title_sort	effect of hvac’s management on indoor thermo-hygrometric comfort and energy balance: in situ assessments on a real nzeb
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e681c03f47c74968a57e72ac58c047a3
work_keys_str_mv	AT rosafrancescademasi effectofhvacsmanagementonindoorthermohygrometriccomfortandenergybalanceinsituassessmentsonarealnzeb AT antoniogigante effectofhvacsmanagementonindoorthermohygrometriccomfortandenergybalanceinsituassessmentsonarealnzeb AT valentinofesta effectofhvacsmanagementonindoorthermohygrometriccomfortandenergybalanceinsituassessmentsonarealnzeb AT silviaruggiero effectofhvacsmanagementonindoorthermohygrometriccomfortandenergybalanceinsituassessmentsonarealnzeb AT giuseppepetervanoli effectofhvacsmanagementonindoorthermohygrometriccomfortandenergybalanceinsituassessmentsonarealnzeb
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Effect of HVAC’s Management on Indoor Thermo-Hygrometric Comfort and Energy Balance: In Situ Assessments on a Real nZEB

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