Thermal performance based optimization of an office wall containing PCM under intermittent cooling operation

Tunçbilek, Ekrem; Arıcı, Müslüm; Krajčík, Michal; Nižetić, Sandro; Karabay, Hasan

doi:10.1016/j.applthermaleng.2020.115750

Cited by 96 publications

(19 citation statements)

References 44 publications

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“…The building operation process accounted for 21.9% of the national carbon emissions [1]. Researchers have carried out many optimizations on building envelopes to reduce the energy consumption of HVAC systems [2,3], and also found that intermittent operation of the air conditioner was an effective method [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Numerical Study on the Dynamic Thermal Response of Building Interior Decoration Coatings during Intermittent Air-Conditioning in High U-Values Buildings in China

Chen

Zhang

2022

Energies

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Interior decorating coatings (IDCs) are the heat-transfer medium between indoor air and building walls, which mainly form the cooling load and are important in an indoor built environment. To explore the impacts of the precooling process of IDCs on indoor thermal environment of occupants during intermittent air conditioning, this paper investigated the dynamic thermal response of IDCs. Three representative coating materials were integrated to the external insulation wall and internal insulation wall, and their interior surface temperatures were experimentally tested under intermittent air conditioning operation in southern China. Moreover, a heat transfer model was established and verified to analyze the influences of IDC on the thermal response of the interior surface. During the pull-down process, the cold was accumulated in the IDC layer with small thermal diffusivity and could not be transferred into the wall inside, so that the largest temperature reduction was obtained, meaning that the indoor thermal environment could meet the setpoint in a short time. According to modelling calculations, the thick IDC with volumetric specific heat capacity less than 1 × 105 J/(m3·K) and small thermal conductivity integrated to the internal insulation wall was beneficial to increase the thermal response rate and had the better energy-saving efficiency.

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Section: Introductionmentioning

confidence: 99%

“…The U-value of the wall decorated with Al sheet is 1.156 W/(m 2 •K) 2. The U-value of the wall decorated with Wall fabric is 1.147 W/(m 2 •K) 3. The U-value of the wall decorated with Wallpaper is 1.152 W/(m 2 •K).…”

mentioning

confidence: 98%

Experimental and Numerical Study on the Dynamic Thermal Response of Building Interior Decoration Coatings during Intermittent Air-Conditioning in High U-Values Buildings in China

Chen

Zhang

2022

Energies

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“…The innovative facade solution with active thermal protection follows the research of combined energy systems of buildings, especially low-temperature radiant heating, hightemperature radiant cooling, thermal barrier and TABS (thermal active building structures), which is described mainly in several scientific studies [2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Innovative Building Technology Implemented into Facades with Active Thermal Protection

Kalús

Gašparík

Janík³

et al. 2021

Sustainability

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The article focuses on the description of an innovative solution and application of active thermal protection of buildings using thermal insulation panels with active regulation of heat transfer in the form of a contact insulation system. The thermal insulation panels are part of a prefabricated lightweight outer shell, which together with the low-temperature heating and high-temperature cooling system creates an indoor environment. The energy source is usually renewable energy sources or technological waste heat. Research and development of an innovative facade system with active thermal protection is in the phase of computer simulations and preparation of laboratory measurements of thermal insulation panels with various combinations of energy functions. In the article we present theoretical assumptions, calculation procedure and parametric study of three basic design solutions of combined energy wall systems in the function of low-temperature radiant heating and high-temperature radiant cooling.

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“…They have been introduced as advanced thermal storage materials in many building applications to meet (or support) the thermal load on an annual basis. In general, PCMs are integrated into building envelope materials and elements, such as the roofs [10], walls [11], [12], floors [13], bricks [14], concretes [15], mortars [16], and transparent components [17], [18]. The main benefits of this integration are to save building energy by reducing thermal loads (cooling and heating loads), shaving and shifting peak load to off-load hours [19], [20].…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Phase Change Materials Integrated with Building Envelope for Heating Application in Cold Locations

Al-Yasiri

Szabó

2021

EJENERGY

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Phase change materials (PCMs) are increasingly investigated in the last years as successful in many thermal energy storage applications. In the building sector, PCMs are utilised to improve building efficiency by reducing cooling/heating loads and promoting renewable energy sources, such as solar energy. This paper shows the recent research works on integrating PCMs with building envelope for heating purposes. The main PCM categories and their main characteristics are presented, focusing on PCM types applied for building heating applications. The main methods adopted to incorporate PCMs with building elements and materials are mentioned, and the popular passive and active incorporation techniques are discussed. Lastly, the main contribution to building energy saving is discussed in terms of heating applications. The analysed studies indicated that all PCMs could improve the building energy saving in the cold climates by up to 44.16% regardless of their types and techniques. Several conclusions and recommendations are derived from the analysed studies that are believed to be a guideline for further research.

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Thermal performance based optimization of an office wall containing PCM under intermittent cooling operation

Cited by 96 publications

References 44 publications

Experimental and Numerical Study on the Dynamic Thermal Response of Building Interior Decoration Coatings during Intermittent Air-Conditioning in High U-Values Buildings in China

Experimental and Numerical Study on the Dynamic Thermal Response of Building Interior Decoration Coatings during Intermittent Air-Conditioning in High U-Values Buildings in China

Innovative Building Technology Implemented into Facades with Active Thermal Protection

Performance Assessment of Phase Change Materials Integrated with Building Envelope for Heating Application in Cold Locations

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