Passive wall cooling panel with phase change material as a cooling agent

Abstract

Abstract.The study was carried out to the determine performance of passive wall cooling panels by using Phase Change Materials as a cooling agent. This passive cooling system used cooling agent as natural energy storage without using any HVAC system. Eight full scale passive wall cooling panels were developed with the size 1500 mm (L) x 500 mm (W) x 100 mm (T). The cooling agent such as glycerine were filled in the tube with horizontal and vertical arrangement. The passive wall cooling panels were casting by using foamed concrete with density between 1200 kg/m 3 -1500 kg/m 3 . The passive wall cooling panels were tested in a small house and the differences of indoor and outdoor temperature was recorded. Passive wall cooling panels with glycerine as cooling agent in vertical arrangement showed the best performance with dropped of indoor air temperature within 3°C compared to outdoor air temperature. The lowest indoor air temperature recorded was 25°C from passive wall cooling panels with glycerine in vertical arrangement. From this study, the passive wall cooling system could be applied as it was environmental friendly and less maintenance.

Innovation of Eco-Waste Concrete Wall Panel using Hybrid Fruit Waste Binder

“…Global warming is a never-ending issue that continues to pose a threat to the planet resulting in a variety of severe environmental impacts. The cause of this warming is greenhouse gas (GHG) emissions, especially carbon dioxide (CO2) emissions (Majid et al, 2017). On a global scale, buildings contribute 30-40 % of primary energy to maintain a comfortable indoor climate (Diaz et al, 2013).…”

“…Here, to provide comfortable indoor climates, the use of air conditioner and fans is an alternative way for occupants where all of this consume electrical energy (International Energy Agency, 2002). Thus, increased energy demand leads to increased greenhouse gas emissions, which contributes to increased global warming and energy costs (Majid et al, 2017). In order to reduce the consumption of electrical energy in the building, the researchers used an environmentally friendly passive cooling system to solve the thermal problem.…”

“…However, this research contradicts to the researchers who stated that the insulation material showed better performance on the thermal performance of the building in a hot-dry climate especially placing the insulation layer outside of the building envelope. Further, the phase change materials (PCM) were introduced as one of the building temperature control methods in the daily life cycle where the material will store and release heat through latent heat within 24 hours then change and discharged into heat (Majid et al, 2017). Typically the PCM used to build cooling or heating is a solidliquid variety (Sun et al, 2016).…”