Thermal-physical behavior and energy performance of air-supported membranes for sports halls: A comparison among traditional and advanced building envelopes

Suo, Hua; Angelotti, Adriana; Zanelli, Alessandra

doi:10.1016/j.enbuild.2015.10.011

Cited by 33 publications

(16 citation statements)

References 7 publications

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“…1 and 2). The polyester membranes are transparent, absorb part of the solar irradiation and have relatively high emissivity in the infrared spectrum [7]. Therefore, the solar heat gains are consisted of the directly transferred solar energy and the absorbed one, which is transferred by convection and radiation in the infrared spectrum to the indoor space.…”

Section: Thermal Balance Of Air Supported Domes For Tennismentioning

confidence: 99%

“…The estimation of the heating and the cooling power at the air supported domes depends on solar gains. They are difficult for computation at the complex geometry of the walls, causing complicated solar ray tracing and infrared radiation heat transfer into the structure [7]. Comprehensive investigations of these related processes have not been published so far.…”

Section: Introductionmentioning

confidence: 99%

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Cost analysis at different energy sources for heating of an air-supported dome for indoor tennis

et al. 2021

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Numerical analyses of the energy supply for heating of air supported structure for indoor tennis in Sofia via district heating, gas and liquid fuels are performed. The computational procedures are implemented through thermal balances of the structures, calibrated on the base of in situ measurements of the indoor temperature and the amount of the fuel, consumed at heating of an air supported balloon for tennis in University of Chemical technology and Metallurgy. The profitability of the different heating variants is estimated using the price of the energy and the systems.

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Section: Thermal Balance Of Air Supported Domes For Tennismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cost analysis at different energy sources for heating of an air-supported dome for indoor tennis

et al. 2021

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“…The first is generally preferred when disassembly and reassembly are foreseen, since the material can be folded many times without damaging. Therefore PES/PVC cushions are mainly found in temporary use installations, such as seasonal covers for sports halls (Suo et al 2015), or in adaptable textile envelopes, such as the Chianciano Terme Pavillion by P. Bodega. Conversely ETFE is preferred when a highly transparent solution is required, so that ETFE is often considered a lightweight alternative to glass for roofs and atria (Robinson-Gayle et al 2001).…”

Section: Introductionmentioning

confidence: 99%

“…However, since the heat flux across the cushion is measured only in three positions along the vertical axis in the center of the surfaces, it may be argued that the effects of the cushion curvature on the thermal performance are only partially detected and coherently the U-value is not given. Suo et al (Suo et al 2015) simulate the energy performance of different air-supported membranes for sports halls, namely single layer, double layer based on cushions and double layer with a slightly ventilated air cavity. As far as the double layer cushions simulation is concerned, the impact of thermal bridges on the center-of-the cushion thermal transmittance is firstly estimated by simplified 2D heat transfer simulations in THERM, resulting in an average extra heat flux equal to 9% on the hall envelope surface.…”

Section: Introductionmentioning

confidence: 99%

Measuring the thermal resistance of double and triple layer pneumatic cushions for textile architectures

Alongi

Angelotti

Rizzo³

et al. 2020

Architectural Engineering and Design Management

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Lightweight architecture, implementing coated fabric and membrane materials, increasingly adopts double or multiple layer pneumatic cushions. The reason lies in the possibility to guarantee adequate thermal insulation and better indoor comfort, especially in permanent buildings. The cushion thermal transmittance decreases as the number of layers increases. However, the U-value is generally assessed by simple calculations assuming the cushion layers are parallel planes. This way, the center-of-the cushion U-value is taken as the overall U-value, disregarding any effect of the curved geometry of the cushion on the heat transfer across it.In this paper an experimental approach to the evaluation of the overall U-value of multiple layer cushions is proposed. Two sample cushions made up of PVC coated polyester with a surface of about 1 m 2 are built, one double layer and one triple layer.They are tested in vertical position in a double thermal chamber laboratory apparatus, establishing a constant temperature difference equal to 25°C across them. The cushion surfaces exposed to the chambers are divided into thermally homogeneous portions where temperature and heat flow density probes are centrally placed. This way the overall thermal resistance and thermal transmittance of the cushions are measured. In parallel, the U-value for the two samples are calculated using literature correlations for free convection in rectangular cavities and assuming radiative heat transfer between parallel grey surfaces. The experimental results show that, passing from two to three layers, the overall thermal resistance of the cushion almost doubles (+ 91%) and the thermal transmittance reduces by about 30%. At the same time, simple calculations of the U-value are found to underestimate the insulation capacity of the cushions, especially for the double layer one. These outcomes point out the necessity of further investigations to understand the impact of the cushion shape on free convection in the air cavity.

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“…In the field of passive buildings, innovative air-supported membrane structures have also been recently employed in low-energy sports halls to investigate their physical and thermal behavior. In the study of Suo et al [23], it was proven that such double-layered envelopes allow savings of 11-18% of the heating energy compared to single-layer. Moreover, in that study further energy-saving strategies are proposed and quantified, considering low-emissivity coatings, reduction of cracks' areas, and modifying indoor air set points.…”

Section: Introductionmentioning

confidence: 99%

Field Measurements and Numerical Simulation for the Definition of the Thermal Stratification and Ventilation Performance in a Mechanically Ventilated Sports Hall

et al. 2019

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Sports halls must meet strict requirements for energy and indoor air quality (IAQ); therefore, there is a great challenge in the design of the heating, ventilation, and air conditioning (HVAC) systems of such buildings. IAQ in sports halls may be affected by thermal stratification, pollutants from different sources, the maintenance of building, and the HVAC system of the building, as well as by the activities performed inside the building. The aim of this study is to investigate thermal stratification conditions in accordance with the performance of the HVAC systems in the basketball training hall of Žalgirio Arena, Kaunas in Lithuania. Field measurements including temperature, relative humidity, and CO2 concentration were implemented between January and February in 2017. The temperature and relative humidity were measured at different heights (0.1, 1.7, 2.5, 3.9, 5.4, and 6.9 m) and at five different locations in the arena. Experimental results show that mixing the ventilation application together with air heating results in higher temperatures in the occupied zone than in the case of air heating without ventilation. Computational fluid dynamics (CFD) simulations revealed that using the same heating output as for warm air heating and underfloor heating, combined with mechanical mixing or displacement ventilation, ensures higher temperatures in the occupied zone, creating a potential for energy saving. An increase of air temperature was noticed from 3.9 m upwards. Since CO2 concentration near the ceiling was permissible, the study concluded that it is possible to recycle the air from the mentioned zone and use it again by mixing with the air of lower layers, thus saving energy for air heating.

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Thermal-physical behavior and energy performance of air-supported membranes for sports halls: A comparison among traditional and advanced building envelopes

Cited by 33 publications

References 7 publications

Cost analysis at different energy sources for heating of an air-supported dome for indoor tennis

Cost analysis at different energy sources for heating of an air-supported dome for indoor tennis

Measuring the thermal resistance of double and triple layer pneumatic cushions for textile architectures

Field Measurements and Numerical Simulation for the Definition of the Thermal Stratification and Ventilation Performance in a Mechanically Ventilated Sports Hall

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