Reducing the cooling and heating energy of a building in hot and cold climates by employing phase change materials

Farajollahi, Amir Hamzeh; Rostami, Mohsen; Feili, Milad; Qader, Diyar N.

doi:10.1016/j.jobe.2022.104917

Cited by 7 publications

(2 citation statements)

References 53 publications

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“…There are several methods of reducing the cooling load on a building, including using phase change materials [16]- [19]. External cooling load on a building through windows and walls is approximately 63%, the rest comes from internal [4].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Effect of Changes in Glass Typeon the Cooling Load in a Building

Sunardi,

Mitrakusuma,

Pradita

et al. 2024

IJATR

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Solar radiation enters the building through the glass by both radiation and conduction. The heat passing through the glass is one of the largest cooling loads. Therefore, modifying the glass type, will potentially reduce the cooling load significantly. This numerical study uses Cooling Load Temperature Difference (CLTD) method to calculate the change in cooling load in a five-story hospital. The Glass material was changed from clear glass to coated glass. Based on the calculation of cooling load per hour, from 07.00 to 19.00, it is obtained that the peak load occurs at 17.00, both when using clear glass clear and coated glass. The replacement of clear glass with coated glass results in a 70.0% decrease in radiation cooling load, from 104.59 kW to 31.38 kW. In addition, replacing this type of glass will reduce the total cooling load by 17.0%, from 418.80 kW to 347.57 kW. The decrease in total cooling load will lead to a decrease in the operational cost of the air conditioning system. If it is assumed that the AC system operates at 75% peak load for 16 hours per day, then replacing the glass will reduce electricity costs by approximately Rp. 43.6 million/month.

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Effect of Changes in Glass Typeon the Cooling Load in a Building

Sunardi,

Mitrakusuma,

Pradita

et al. 2024

IJATR

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“…Farajollahi et al [15] investigated numerically using COMSOL and Energy Plus software to explore the impact of integrating PCMs within the wall of the building on the energy necessary to maintain comfortable conditions within the building. The PCMs were positioned within one or two cavities in the wall, and the effect of the spacing between these chambers was examined.…”

Section: Introductionmentioning

confidence: 99%

Thermal behavior of a PCM-plywood combination as insulation for buildings in a hot summer condition

Al-Akam,

Abduljabbar,

Abdulhamed

et al. 2024

IJHT

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Integrating innovative materials and technologies has become imperative in the quest to design energy-efficient and sustainable buildings. Among these, one of the promising solutions to improve indoor spaces' comfort conditions and energy efficiency is the Phase Change Materials (PCMs). The methodology experimentally explores the impact of combining plywood and paraffin wax as a PCM to improve indoor environments' thermal dynamics under Iraqi conditions. Two wooden boxes are used, with one having its wall stuffed with a PCM. A temperature analysis was made for the internal temperature of each box, walls' surfaces, and PCM temperature for seven days. The impact of the box arrangement on the temperature distribution was also considered. The result showed the temperature inside the modified box is lower than the conventional one by about 3.0 during the peak time from 08:00 hr. to 16:00 hr. The night cooling is slower for the box with the PCM than the conventional one. Having the modified and the non-modified box in arrangement improves the insulation of both of them. Moreover, the findings showed that there is no need for all the rooms to be modified for a building with many rooms. The correct position of the room based on the location of the building in the study area will be enough.

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Exergo-economic and exergo-environmental evaluations and multi-objective optimization of a novel multi-generation plant powered by geothermal energy

Hai

Radman

Abed

et al. 2023

Process Safety and Environmental Protection

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Reducing the cooling and heating energy of a building in hot and cold climates by employing phase change materials

Cited by 7 publications

References 53 publications

Numerical Investigation of the Effect of Changes in Glass Typeon the Cooling Load in a Building

Numerical Investigation of the Effect of Changes in Glass Typeon the Cooling Load in a Building

Thermal behavior of a PCM-plywood combination as insulation for buildings in a hot summer condition

Exergo-economic and exergo-environmental evaluations and multi-objective optimization of a novel multi-generation plant powered by geothermal energy

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