Prediction of 3D airflow and temperature field in an indoor ice rink with radiant heat sources

Omri, Mohamed; Galanis, Nicolas

doi:10.1007/s12273-010-0311-x

Cited by 16 publications

(11 citation statements)

References 13 publications

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“…The vertical temperature profiles in various ice rinks in Finland were measured in previous studies [10][11][12][13][14], and its outcomes as temperature gradient curves are used in the current paper, as energy consumption of the same ice rinks has been measured to describe case arenas. The set air stratification intensity for the simulation is based on experimental measurements conducted in three ice rink arenas in Finland.…”

Section: Temperature Gradient Measurementsmentioning

confidence: 99%

“…Several past studies have focused on reducing the heat load towards the ice pad, and thereby reducing the refrigeration unit's electricity consumption [7][8][9]. Simultaneously, numerous efforts have gone into modeling the air distribution inside the hall space in experimental, zonal model, or Computational Fluid Dynamics (CFD) form [10][11][12][13][14]. As a result, we have a fairly comprehensive understanding of the temperature and moisture profiles inside the hall, as well as the factors affecting the heat load.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Air Distribution and Air Handling Unit Configuration Effects on Energy Performance in an Air-Heated Ice Rink Arena

Taebnia

Toomla

Leppä³

et al. 2019

Energies

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Indoor ice rink arenas are among the foremost consumers of energy within building sector due to their exclusive indoor conditions. A single ice rink arena may consume energy of up to 3500 MWh annually, indicating the potential for energy saving. The cooling effect of the ice pad, which is the main source for heat loss, causes a vertical indoor air temperature gradient. The objective of the present study is twofold: (i) to study vertical temperature stratification of indoor air, and how it impacts on heat load toward the ice pad; (ii) to investigate the energy performance of air handling units (AHU), as well as the effects of various AHU layouts on ice rinks’ energy consumption. To this end, six AHU configurations with different air-distribution solutions are presented, based on existing arenas in Finland. The results of the study verify that cooling energy demand can significantly be reduced by 38 percent if indoor temperature gradient approaches 1 °C/m. This is implemented through air distribution solutions. Moreover, the cooling energy demand for dehumidification is decreased to 59.5 percent through precisely planning the AHU layout, particularly at the cooling coil and heat recovery sections. The study reveals that a more customized air distribution results in less stratified indoor air temperature.

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Section: Temperature Gradient Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Air Distribution and Air Handling Unit Configuration Effects on Energy Performance in an Air-Heated Ice Rink Arena

Taebnia

Toomla

Leppä³

et al. 2019

Energies

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show abstract

“…Many studies have been conducted with smaller ice arena enclosures (Yang et al, 2001;Sunyé et al, 2007;Omri and Galanis, 2010). However, air movement c an be different in large arenas due to a wider variety of length and time scales in flow patterns.…”

mentioning

confidence: 99%

The use of displacement and zoning ventilation in a multipurpose arena

Lestinen

Koskela

Jokisalo

et al. 2016

International Journal of Ventilation

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This study investigated the performance of ventilation and indoor climate in a multipurpose arena located in Malmö, Sweden with a seating capacity of 13 000 individuals, and in which a combination of displacement and zoning ventilation was applied. The main objective was to explore thermal conditions, indoor air quality, airflow patterns and air distribution. The measured operating conditions were ice hockey game and training situation. The measurements were conducted to observe the indoor climate and CFD-simulations were performed to get a generic view of the air distribution and the flow field over the whole arena indoor environment. The results show that air movement was highly case-dependent. However, the experiments indicated an upward flow along the lower-seating area and a downward flow along the upper-seating area. During the game, the average rise of temperature was around 2°C in arena with low stratification while using displacement ventilation. The temperature range was 12-17°C at the lower-seating area and 15-17°C at the upper-seating area. The corresponding air speed level was 0.06-0.36 m/s. The relative humidity was about 30-40% where a part of the humidity was transferring into the ice sheet. The carbon dioxide concentration increased locally to near 900 ppm indicating reasonable operation of ventilation. The CFD-simulations predicted well-mixed conditions in arena, thus supporting the measured low temperature stratification. Overall, the air movement was significantly affected by supply air temperature, variable air flow rates and retractable stand position (on-off) in the arena enclosure. The results support the use of displacement and zoning ventilation in multipurpose arenas.

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“…The use of spatial design to reduce energy consumption by exploiting convection is not quantified in the energy performance evaluation of buildings, yet. The phenomenon of air temperature stratification has only recently been examined for parts of buildings, like double skin facades or atria (Göcer et al 2006;Omri and Galanis 2010). The energy needs or savings relative to spatial construction have not been sufficiently examined or considered.…”

Section: Introductionmentioning

confidence: 99%

Predicting natural ventilation flows in whole buildings. Part 1: The Viipuri Library

2011

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For energy efficient restoration of historical buildings, especially historic monuments of international importance such as the Viipuri Library by Alvar Aalto (1898 -1976), new analytical tools are needed. Of interest to this research is the evaluation of air movement within this building due to spatial composition, which can also prove very useful in helping architects determine how best to renovate and restore historical buildings. The objective is to analyze how radiant heating and passive cooling are currently exploited in the Viipuri Library. The knowledge will be useful to restore this historical building to function efficiently while ensuring that the existing mechanical ventilation systems and natural convective flows work well together after restoration. Computational fluid dynamics will be used to model, simulate and predict multiple environmental conditions to examine spatial layout effects on the ability of natural ventilation to maintain a comfortable thermal environment and acceptable rates of ventilation. The preliminary results demonstrate that airflow and thermal effects can be predicted and validated for any set of conditions, such as specifying which windows or doors are open, and the ambient conditions exterior (e.g., wind and air temperature) and interior (e.g., radiant pipes) to the building. Keywordscomputational fluid dynamics, energy efficiency, free flow open space, natural ventilation,

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Prediction of 3D airflow and temperature field in an indoor ice rink with radiant heat sources

Cited by 16 publications

References 13 publications

Air Distribution and Air Handling Unit Configuration Effects on Energy Performance in an Air-Heated Ice Rink Arena

Air Distribution and Air Handling Unit Configuration Effects on Energy Performance in an Air-Heated Ice Rink Arena

The use of displacement and zoning ventilation in a multipurpose arena

Predicting natural ventilation flows in whole buildings. Part 1: The Viipuri Library

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