The effect of using phase change material in the natural ventilation duct of a building on temperature uniformity at different hours of the day

Abstract Global warming and climate change have been considered as major challenges over the past few decades. Sustainable and renewable energy sources are nowadays needed to overcome the undesirable consequences of rapid development in the world. Phase change materials (PCM) are substances with high latent heat storage capacity which absorb or release the heat from or to the surrounding environment. They change from solid to liquid and vice versa. PCMs could be used as a passive cooling method which enhances energy efficiency in buildings. Integrating PCM with natural ventilation is investigated in this study by exploring the effect of phase change material on the temperature in a room fitted with a windcatcher. A chamber made of acrylic sheets fitted with a windcatcher is used to monitor the temperature variations. The dimensions of the chamber are 1250 × 1000 × 750 mm3. Phase change material is integrated respectively at the walls of the room, its floor and ceiling and within the windcatchers inlet channel. Temperature is measured at different locations inside the chamber. Wind is blown through the room using a fan with heating elements.

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Natural Ventilation Control to Enhance the Performance of Building Envelope with Integrated Phase Change Material for Passive Applications in Summer

Proceedings of Building Simulation 2019: 16th Conference of IBPSA ◽

10.26868/25222708.2019.210358 ◽

2020 ◽

Author(s):

Cristina Piselli ◽

Alvaro de Gracia ◽

Mohit Prabhakar ◽

Anna Laura Pisello ◽

Luisa F. Cabeza

Keyword(s):

Phase Change ◽

Phase Change Material ◽

Natural Ventilation ◽

Building Envelope ◽

Ventilation Control ◽

Change Material

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Simulation Study on Thermal Performance of a Ventilated PV Façade Coupled with PCM

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.861.167 ◽

2016 ◽

Vol 861 ◽

pp. 167-174 ◽

Cited By ~ 4

Author(s):

Jakub Curpek ◽

Jozef Hraska

Keyword(s):

Phase Change ◽

Phase Change Material ◽

Thermal Performance ◽

Natural Ventilation ◽

Thermodynamic Simulation ◽

Climatic Conditions ◽

Simulation Software ◽

Collector System ◽

Pv Panel ◽

Change Material

This paper presents a dynamic thermal model based on DesignBuilder simulation software platform, for a simple office building model with an integrated ventilated PV façade/solar air collector system in climatic conditions of Bratislava, Slovakia. Thermodynamic simulation has been applied in order to express thermal performance of a ventilated PV façade coupled with phase change material through the whole reference year. Attention is focused on simplified approaches which capture the important elements of the problem. The results of simulation show that natural ventilation of PV façade with added phase change material have ability decrease temperatures of PV panel during extreme days more than 20 °C and shift time of peak temperature even more than 5 hours.

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STUDY ON COLD STORAGE OF PHASE CHANGE MATERIAL ON THE FLOOR OF A HOUSE WITH NIGHT NATURAL VENTILATION

Journal of Environmental Engineering (Transactions of AIJ) ◽

10.3130/aije.82.1025 ◽

2017 ◽

Vol 82 (742) ◽

pp. 1025-1034

Author(s):

Taecheol LEE ◽

Rihito SATO ◽

Takashi ASAWA ◽

Hidenori KAWAI ◽

Yukari HIRAYAMA ◽

...

Keyword(s):

Phase Change ◽

Phase Change Material ◽

Cold Storage ◽

Natural Ventilation ◽

Change Material

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A pathway towards healthy and naturally ventilated indoor built environment through phase change material and insulation techniques for office buildings in India

Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy ◽

10.1177/09576509211056426 ◽

2021 ◽

pp. 095765092110564

Author(s):

Pappu Arumugam ◽

Pandiyarajan Vellaichamy ◽

Velraj Ramalingam ◽

S Arun Prakash ◽

Antony Aroul Raj V

Keyword(s):

Thermal Comfort ◽

Phase Change ◽

Phase Change Material ◽

Natural Ventilation ◽

Office Building ◽

Air Conditioner ◽

Commercial Building ◽

Nighttime Temperatures ◽

Change Material ◽

Selection Of

The thermal comfort of occupants is a necessary requirement for any building. The present pandemic demands us to opt for natural ventilation over air-conditioned spaces to reduce the spread of the infection. This work aims to prevent air-conditioner usage in a commercial building in India during daytime office hours while simultaneously enhancing the thermal comfort of the building occupants through natural ventilation/Phase Change Material (PCM)/insulation techniques. Four building configurations, such as Building A (conventional building with no PCM and no insulation), Building B (building-integrated with PCM), Building C (building-integrated with insulation) and Building D (building-integrated with PCM and insulation) were analysed for various locations using DesignBuilder software. From the results, it is understood that insulation integration is recommended for locations with average nighttime temperatures greater than 27°C, while PCM integration is recommended for locations with an average nighttime temperature less than 27°C during the summer season. Also, nighttime cooling of the building through an air-conditioner is necessary for all locations during summer to maintain adequate thermal comfort with natural ventilation in the daytime. Finally, an appropriate PCM/insulation technique is recommended for an office building located in each location that falls under each type of climate. Hence, the selection of PCM/insulation technique is to be made based on the specific site conditions.

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