Casthouse Ventilation Design for the Production of Air-Cooled Aluminium Sows

Plikas, Tom; Cesta, Tony; Gunnewiek, Lowy; Vanasse, Jean

doi:10.1080/14733315.2010.11683868

“…Traditional methods would not be able to track the pollutant dispersion. An office workspace next to a smelting plant in Quebec was designed by Plikas et al (2010) using CFD to insure adequate cooling was supplied by the ventilation system, which presented unusual cooling loads. Ascione and Minichiello (2010) studied different diffuser designs for a ventilation system for a museum in Italy.…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental and Numerical Study on the Thermal Performance of a Vertical PCM Panel

Almeida¹

2023

Preprint

0

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Due to an increased awareness of climate change and other environmental issues, methods to reduce the energy consumption of buildings has become of great importance. One way to improve the efficiency of a building is to use thermal storage material. A recent thermal storage strategy is to use phase change material (PCM) which allows for the storage and release of thermal energy. One of the main advantages of using PCM over traditional thermal storage (like concrete) is that PCM can achieve the same level of thermal storage as concrete while using less material. Using PCM can also reduce and delay peak load, improve the thermal comfort, and reduce the overall energy consumption of a building. One of the main parameters that affect the performance and effectiveness of PCM in buildings is the convective heat transfer between a PCM wall and room air. Current convective heat transfer coefficients used in whole building simulation and in building codes (such as ASHRAE) may not be adequate for PCM applications. The present study investigates thermal performance of a vertical PCM panel. The investigation includes experiments using laser MachZehnder Interferometry (MZI) and a comparative numerical study using computational fluid dynamics (CFD). The study focuses on a vertical flat plate filled with PCM (soy wax) undergoing transient convective heat transfer by natural convection while the PCM solidifies. A novel method was developed to make interferometric surface temperature measurements using partial fringes as a reference temperature. The experimental results show a deviation from predicted heat transfer coefficients from established correlation and significant subcooling was observed as a temperature jump. The subcooling effect was reproduced using CFD by implementing the speed of crystallization within the PCM cavity.

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“…Traditional methods would not be able to track the pollutant dispersion. An office workspace next to a smelting plant in Quebec was designed by Plikas et al (2010) using CFD to insure adequate cooling was supplied by the ventilation system, which presented unusual cooling loads. Ascione and Minichiello (2010) studied different diffuser designs for a ventilation system for a museum in Italy.…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental and Numerical Study on the Thermal Performance of a Vertical PCM Panel

Almeida¹

2023

Preprint

1

0

View full text Add to dashboard Cite

Due to an increased awareness of climate change and other environmental issues, methods to reduce the energy consumption of buildings has become of great importance. One way to improve the efficiency of a building is to use thermal storage material. A recent thermal storage strategy is to use phase change material (PCM) which allows for the storage and release of thermal energy. One of the main advantages of using PCM over traditional thermal storage (like concrete) is that PCM can achieve the same level of thermal storage as concrete while using less material. Using PCM can also reduce and delay peak load, improve the thermal comfort, and reduce the overall energy consumption of a building. One of the main parameters that affect the performance and effectiveness of PCM in buildings is the convective heat transfer between a PCM wall and room air. Current convective heat transfer coefficients used in whole building simulation and in building codes (such as ASHRAE) may not be adequate for PCM applications. The present study investigates thermal performance of a vertical PCM panel. The investigation includes experiments using laser MachZehnder Interferometry (MZI) and a comparative numerical study using computational fluid dynamics (CFD). The study focuses on a vertical flat plate filled with PCM (soy wax) undergoing transient convective heat transfer by natural convection while the PCM solidifies. A novel method was developed to make interferometric surface temperature measurements using partial fringes as a reference temperature. The experimental results show a deviation from predicted heat transfer coefficients from established correlation and significant subcooling was observed as a temperature jump. The subcooling effect was reproduced using CFD by implementing the speed of crystallization within the PCM cavity.

show abstract