Papers by Giulio Cattarin
Energy retrofit for a climate resilient child care centre
Energy and Buildings, 2016
Previous studies have demonstrated that in summertime increased air velocities can compensate for... more Previous studies have demonstrated that in summertime increased air velocities can compensate for higher room temperatures to achieve comfortable conditions. In order to increase air movement, windows opening, ceiling or desk fans can be used at the expense of relatively low energy consumption. The present climatic chamber study examined energy performance and achievable thermal comfort of traditional and bladeless desk fans. Different effects of mechanical and simulated-natural airflow patterns were also investigated. 32 Scandinavians, performing office activities and wearing light clothes , were exposed to a increased air movement generated by a personal desk fan. The subjects could continuously regulate the fans under three fixed environmental conditions (operative temperatures equal to 26 °C, 28 °C, or 30 °C, and same absolute humidity 12.2 g/m 3 ). The experimental study showed that increased air velocity under personal control make the indoor environment acceptable at higher air temperatures. This will during summer season and in warmer countries improve thermal comfort without too high energy costs. There was significant individual difference in the preferred air velocities, which indicate that personal control is important. The accepted air velocities depended on the type and source of the increased velocity. The Scandinavian subjects did not accept so high velocities as found in studies with Chinese subjects.
Retrofit of a Kindergarten Targeting Zero Energy Balance
Energy Procedia, 2015
Outdoor test cells for building envelope experimental characterisation – A literature review
Renewable and Sustainable Energy Reviews, 2016
ABSTRACT
Previous studies have demonstrated that in summertime increased air velocities can compensate for... more Previous studies have demonstrated that in summertime increased air velocities can compensate for higher room temperatures to achieve comfortable conditions. In order to increase air movement, windows opening, ceiling or desk fans can be used at the expense of relatively low energy consumption. The present climatic chamber study examined energy performance and achievable thermal comfort of traditional and bladeless desk fans. Different effects of mechanical and simulated-natural airflow patterns were also investigated. 32 Scandinavians, performing office activities and wearing light clothes , were exposed to a increased air movement generated by a personal desk fan. The subjects could continuously regulate the fans under three fixed environmental conditions (operative temperatures equal to 26 °C, 28 °C, or 30 °C, and same absolute humidity 12.2 g/m3). The experimental study showed that increased air velocity under personal control make the indoor environment acceptable at higher air...
Applied Mechanics and Materials, 2014
Earth-to-Air Heat Exchangers (EAHE) represent a relatively simple technology that can be easily c... more Earth-to-Air Heat Exchangers (EAHE) represent a relatively simple technology that can be easily coupled with traditional HVAC systems as well as with hybrid systems in order to exploit the thermal capacity of the ground. The air is pre-heated in the cold season and pre-cooled in the warm season through the EAHE, thus smoothing the peak loads and reducing the primary energy consumption. The present paper presents an experimental set-up of an EAHE implemented in a rural area in the Sicily region, focusing on the selection of the type of soils and the characteristics of the monitoring system installed to collect information on the actual energy performance of the EAHE.
La riqualificazione energetico ambientale degli edifici, ottimalità in funzione dei costi e zero energia
Il settore edile è ritenuto cruciale per raggiungere gli obiettivi 20/20/20 dell’UE. L’Europa mir... more Il settore edile è ritenuto cruciale per raggiungere gli obiettivi 20/20/20 dell’UE. L’Europa mira inoltre a conseguire riduzioni delle emissioni di gas serra nei settori residenziale e terziario rispettivamente dell’88% e 91% rispetto al 1990 entro il 2050. Con la revisione delle due direttive Energy Performance of Buildings Directive (EPBD) e Energy Efficiency Directive (EED) e la pubblicazione delle Regulation e Guidelines che stabiliscono un methodology framework for calculating cost-optimal levels of minimum energy performance requirements for buildings and building elements cost-optimal, si è impostato il quadro generale per procedere lungo questa direzione. Due meccanismi saranno decisivi per lo sviluppo del settore edile: il principio degli edifici a energia quasi zero e il Il principio di ottimalità in funzione dei costi.
Applied Mechanics and Materials, 2014
Earth-to-Air Heat Exchangers (EAHE) represent a relatively simple technology that can be easily c... more Earth-to-Air Heat Exchangers (EAHE) represent a relatively simple technology that can be easily coupled with traditional HVAC systems as well as with hybrid systems in order to exploit the thermal capacity of the ground. The air is pre-heated in the cold season and pre-cooled in the warm season through the EAHE, thus smoothing the peak loads and reducing the primary energy consumption. The present paper presents an experimental set-up of an EAHE implemented in a rural area in the Sicily region, focusing on the selection of the type of soils and the characteristics of the monitoring system installed to collect information on the actual energy performance of the EAHE.
La riqualificazione energetico ambientale degli edifici, ottimalità in funzione dei costi e zero energia
ABSTRACT Il settore edile è ritenuto cruciale per raggiungere gli obiettivi 20/20/20 dell’UE. L’E... more ABSTRACT Il settore edile è ritenuto cruciale per raggiungere gli obiettivi 20/20/20 dell’UE. L’Europa mira inoltre a conseguire riduzioni delle emissioni di gas serra nei settori residenziale e terziario rispettivamente dell’88% e 91% rispetto al 1990 entro il 2050. Con la revisione delle due direttive Energy Performance of Buildings Directive (EPBD) e Energy Efficiency Directive (EED) e la pubblicazione delle Regulation e Guidelines che stabiliscono un methodology framework for calculating cost-optimal levels of minimum energy performance requirements for buildings and building elements cost-optimal, si è impostato il quadro generale per procedere lungo questa direzione. Due meccanismi saranno decisivi per lo sviluppo del settore edile: il principio degli edifici a energia quasi zero e il Il principio di ottimalità in funzione dei costi.
Multi-objective optimization of a nearly zero-energy building based on thermal and visual discomfort minimization using a non-dominated sorting genetic algorithm (NSGA-II)
Energy and Buildings, 2015
Applied Mechanics and Materials, 2014
Earth-to-Air Heat Exchangers (EAHE) represent a relatively simple technology that can be easily c... more Earth-to-Air Heat Exchangers (EAHE) represent a relatively simple technology that can be easily coupled with traditional HVAC systems as well as with hybrid systems in order to exploit the thermal capacity of the ground. The air is pre-heated in the cold season and pre-cooled in the warm season through the EAHE, thus smoothing the peak loads and reducing the primary energy consumption. The present paper presents an experimental set-up of an EAHE implemented in a rural area in the Sicily region, focusing on the selection of the type of soils and the characteristics of the monitoring system installed to collect information on the actual energy performance of the EAHE.
La riqualificazione energetico ambientale degli edifici, ottimalità in funzione dei costi e zero energia
Il settore edile è ritenuto cruciale per raggiungere gli obiettivi 20/20/20 dell’UE. L’Europa mir... more Il settore edile è ritenuto cruciale per raggiungere gli obiettivi 20/20/20 dell’UE. L’Europa mira inoltre a conseguire riduzioni delle emissioni di gas serra nei settori residenziale e terziario rispettivamente dell’88% e 91% rispetto al 1990 entro il 2050. Con la revisione delle due direttive Energy Performance of Buildings Directive (EPBD) e Energy Efficiency Directive (EED) e la pubblicazione delle Regulation e Guidelines che stabiliscono un methodology framework for calculating cost-optimal levels of minimum energy performance requirements for buildings and building elements cost-optimal, si è impostato il quadro generale per procedere lungo questa direzione. Due meccanismi saranno decisivi per lo sviluppo del settore edile: il principio degli edifici a energia quasi zero e il Il principio di ottimalità in funzione dei costi.
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Papers by Giulio Cattarin