Energy-saving performance of respiration-type double-layer glass curtain wall system in different climate zones of China: Experiment and simulation

Kong, Xiangming; Ren, Yue; Ren, Jing; Duan, Shasha; Guo, Chenli

doi:10.1016/j.enbuild.2021.111464

Cited by 16 publications

(10 citation statements)

References 25 publications

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“…Thermal performance and energy performance of hybrid DSFs were evaluated by Goes and Silva [26] in Brazil and Abdul Majid and Ghazali [27] in Malaysia, while double skin facade energy performance in hot-humid climate was examined by Göksal Özbalta and Yıldız [28], and Alakavuk [29], who examined an approach that can be used for the design of double-skin glass facade systems in hot climate regions; Alakavuk's evaluation in the province of Izmir are among the DSF studies in the literature. According to studies by [19,[30][31][32][33], tropical climates have a greater danger of the DSF's outer warming. Rahmani et al [34], Torres et al [35], Radhi et al [36] , and Ahriz et al [37] have investigated the effects of the DSF's cavity depth on the amount of solar heat passed through the cavity and the consequent temperature and airflow rates produced.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Thermal and Energy Performance of Double Skin Facades in Hot Climate Regions in Turkey

Qurraie¹,

Arslan²

2022

CRPASE

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Double-skin facade systems are essential to minimize energy losses and provide maximum efficiency from the energy used. In this study, a corridor-type double-skin façade system was applied to the south front of the fifth floor of a five-story office building designed in Alanya, Antalya, in the hot climate region of Turkey. In addition, the usefulness of double skin facade systems in hot climate regions is determined by evaluating thermal and energy performance comparatively over three different parameters: material type, cavity widths between the two walls, and window opening ratios on the facade. This research is aimed to raise awareness around the comparative use of brick walls, wood, and composite panels with opaque qualities within the scope of material, with 1 m, 1.5 m, and 2 m as the width of the gap between the two walls. For all materials, thermal performance and energy performance decreased as the window opening ratio on the facade increased and as the cavity between the two walls decreased. However, worse performance was observed in the use of wood because of the low U-Value compared to the single-skin façade (SSF) building. In contrast, excellent performance was seen in using brick walls and metal panels compared to the SSF building, and overall, the metal panel showed the best performance. In the metal sample with a WWR of ten percent, the most significant reduction (27%) in annual cooling load can be seen.

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Section: Introductionmentioning

confidence: 99%

Investigation of Thermal and Energy Performance of Double Skin Facades in Hot Climate Regions in Turkey

Qurraie¹,

Arslan²

2022

CRPASE

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“…The evaluations were calculated for the energy consumption of ventilation and filtration systems [ 11 , 50 , 51 , 52 ] and the operating cost-effectiveness of the ventilation and filtration systems. The optimal return air heights for different types of supply air were subsequently identified, and, thus, the results can not only meet the air quality requirements, but also save energy.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, reduced levels of airborne SARS-CoV-2 can be dependent on the characteristics of ventilation systems (e.g., location, type, flow rate, etc.) [ 11 , 12 ]. In recent years, based on experimental and simulation methods, many studies have analyzed the impacts of ventilation and filtration systems on indoor air quality.…”

Section: Introductionmentioning

confidence: 99%

Effects of Return Air Inlets’ Location on the Control of Fine Particle Transportation in a Simulated Hospital Ward

Ren

Duan

Guo

et al. 2022

IJERPH

Self Cite

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The COVID-19 pandemic has made significant impacts on public health, including human exposure to airborne pathogens. In healthcare facilities, the locations of return air vents in ventilation systems may have important effects on lowering airborne SARS-CoV-2 transmission. This study conducted experiments to examine the influence of different return air vents’ heights (0.7 m, 1.2 m, and 1.6 m) on the particle removal effects in a simulated patient ward. Three different ventilation systems were examined: top celling air supply-side wall return (TAS), underfloor air supply-side wall return (UFAS) and side wall air supply-side wall return (SAS). CFD simulation was applied to further study the effects of return air inlets’ heights (0.3 m, 0.7 m, 1.2 m, 1.6 m, and 2.0 m) and air exchange rates. The technique for order of preference by similarity to ideal solution (TOPSIS) analysis was used to calculate the comprehensive scores of 60 scenarios using a multi-criterion method to obtain the optimal return air inlets’ heights. Results showed that for each additional 0.5 m distance in most working conditions, the inhalation fraction index of medical staff could be reduced by about 5–20%. However, under certain working conditions, even though the distances between the patients and medical personnel were different, the optimal heights of return air vents were constant. For TAS and UFAS, the optimal return air inlets’ height was 1.2 m, while for SAS, the best working condition was 1.6 m air supply and 0.7 m air return. At the optimum return air heights, the particle decay rate per hour of SAS was 75% higher than that of TAS, and the rate of particle decay per hour of SAS was 21% higher than that of UFAS. The location of return air inlets could further affect the operating cost-effectiveness of ventilation systems: the highest operating cost-effectiveness was 8 times higher than the lowest one.

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“…Air conditioning energy consumption can account for 20-40% of a building's energy consumption. Replacing energy-intensive mechanical ventilation with natural ventilation can therefore reduce energy consumption in hospitals in warmer climates [59]. Other studies analyzed utilizing thermal insulation as a passive strategy for reducing cooling and heating energy consumption in hospitals.…”

Section: The Influence Of Climate Zone On Energy Unit Costs By Hospital Activitiesmentioning

confidence: 99%

Determinants of Electrical and Thermal Energy Consumption in Hospitals According to Climate Zones in Poland

Cygańska

Kludacz-Alessandri

2021

Energies

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Energy use in hospitals is higher than in other public buildings, so improving energy efficiency in healthcare buildings is a significant challenge in this sector of engineering. For this, it is necessary to know the various determinants of energy consumption. Until now, the main factor affecting energy consumption in healthcare facilities studied in the literature was hospital capacity. However, the commonly used variables connected with hospital size and the number of beds do not take into account the medical activities carried out in these buildings. Assuming that energy consumption in hospitals is multiple and shaped by many factors that overlap, not only on an individual level but also on a higher scale level, this study devises a more integrated approach to its determinants. This study aims to investigate the determinants of electrical energy costs (EEC) and thermal energy costs (TEC) in Polish hospitals with regard to factors related to their size, work intensity and climate zones. The analysis was carried out using financial and resource data from all Polish hospitals for the years 2010–2019. The study used a multivariate backward stepwise regression analysis. In order to use climate as a moderating variable, a sample of Polish hospitals from 16 Polish NUTS 2 was divided into four climate zones. This article provides new empirical evidence on the determinants of electricity consumption in Polish hospitals related to their size and medical activity, taking into account climate zone as a moderating variable. The results of the analysis show that both electricity and heat consumption in hospitals are positively related to the number of doctors, beds and the number of medical operations performed. As expected, larger hospitals seem to use more energy. Moreover, there is regional heterogeneity in energy consumption in hospitals related to the climatic zone in which they operate. The conducted analysis shows that Polish hospitals located in the warmest climatic zone are characterized by higher energy consumption than hospitals in the coldest zone. It especially regards EEC in surgery hospitals. The warmer the climate zones, the higher intensity in terms of the number of surgeries, the higher EEC. In terms of nonsurgical hospitals, the influence of climate zone on EEC was not observed. Knowing the factors influencing energy consumption in hospitals can facilitate the correct adoption of an energy-saving strategy in the health sector, which is a reasonable response to climate change and supports a healthy and sustainable future.

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Energy-saving performance of respiration-type double-layer glass curtain wall system in different climate zones of China: Experiment and simulation

Cited by 16 publications

References 25 publications

Investigation of Thermal and Energy Performance of Double Skin Facades in Hot Climate Regions in Turkey

Investigation of Thermal and Energy Performance of Double Skin Facades in Hot Climate Regions in Turkey

Effects of Return Air Inlets’ Location on the Control of Fine Particle Transportation in a Simulated Hospital Ward

Determinants of Electrical and Thermal Energy Consumption in Hospitals According to Climate Zones in Poland

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