Thermal and cost analysis of various air filled double glazed reflective windows for energy efficient buildings

Gorantla, Kirankumar; Shaik, Saboor; Shaik, Sharmas Vali; Mahapatra, Debasish; Setty, Ashok Babu Talanki Puttaranga; Kim, Ki‐Hyun

doi:10.1016/j.jobe.2019.101055

Cited by 34 publications

(13 citation statements)

References 25 publications

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“…In this system, the air sealed in between the panes acts as an insulating layer [ 35 ]. A large number of techniques can be used in all types of wood buildings to improve the thermal efficiency of IGUs, such as the use of coated glass [ 58 ], multi-layer glass [ 202 ], vacuum glass [ 203 ] or smart glass [ 204 ], and incorporating materials (e.g., gas or aerogel) in the cavity between the panes of glass [ 57 ]. Fasi et al showed that double-paned clear-glass windows could annually reduce lighting, cooling and total energy consumption by 70%, 8% and 14%, respectively [ 205 ].…”

Section: Strategies To Improve Building Energy Efficiencymentioning

confidence: 99%

A State of the Art of the Overall Energy Efficiency of Wood Buildings—An Overview and Future Possibilities

Cabral

Blanchet

2021

Materials

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The main goal of this study was to review current studies on the state of the art of wood constructions with a particular focus on energy efficiency, which could serve as a valuable source of information for both industry and scholars. This review begins with an overview of the role of materials in wood buildings to improve energy performance, covering structural and insulation materials that have already been successfully used in the market for general applications over the years. Subsequently, studies of different wood building systems (i.e., wood-frame, post-and-beam, mass timber and hybrid constructions) and energy efficiency are discussed. This is followed by a brief introduction to strategies to increase the energy efficiency of constructions. Finally, remarks and future research opportunities for wood buildings are highlighted. Some general recommendations for developing more energy-efficient wood buildings are identified in the literature and discussed. There is a lack of emerging construction concepts for wood-frame and post-and-beam buildings and a lack of design codes and specifications for mass timber and hybrid buildings. From the perspective of the potential environmental benefits of these systems as a whole, and their effects on energy efficiency and embodied energy in constructions, there are barriers that need to be considered in the future.

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Section: Strategies To Improve Building Energy Efficiencymentioning

confidence: 99%

A State of the Art of the Overall Energy Efficiency of Wood Buildings—An Overview and Future Possibilities

Cabral

Blanchet

2021

Materials

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“…Because heat transfer to the floor in basements is relatively low. This is due to minor temperature changes between the section under the floor and the air above the floor [73]. Table V shows the work done by several researchers and the thermal insulation in some parts of the building.…”

Section: ) Insulation On Roof and Ceilingmentioning

confidence: 99%

Performances Study of Natural and Conventional Building Insulation Materials

Yıldız¹,

Duraković²,

Almisreb³

2021

International Journal on Advanced Science, Engineering and Information Technology

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This research aims to investigate the performances of thermal insulation materials using a comparative analysis. Particularly, the performances of natural insulation materials are compared with performances of non-renewables (petrochemical and inorganic), such as thermal conductivity, thermal diffusivity, global warming potential, and cost. In the past twenty years, the interest for the research on building energy demand reduction has been increased rapidly. Buildings were identified as a significant contributor to global energy consumption and global warming through the heating and air-conditioning systems. The literature observed that building energy demand takes up to 40% of the global energy consumption. Trends in addressing this issue are based on better thermal insulation of building envelope or using more energy-efficient materials. To carry out this research, the data were collected based on published research and comparatively analyzed. It was found that natural insulation materials have a significantly lower impact on global warming, longer useful lifetime, competitive thermal properties, better fire resistance, and favorable cost. Future trends and developments in reducing building energy demand would rely on sustainability. Sustainability is based on renewable natural resources, including renewable insulation materials, but if combined with significant participation of PCMs for latent heat energy storage, it will provide much better results. To get sustainable technologies applicable in full scale in the future, the overall problem has to be investigated, including user training and addressing the future workforce's challenges.

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“…Therefore, buildings use huge amount of energy for daylighting, cooling, and heating in their interior environments. [7][8][9] In November 2018, The European Commission has already commitment to reduce at least 40% of GHG emissions below to 1990 levels while improving energy efficiency by 32.5%, and increasing the renewable energy sources to 32%. 10,11 To achieve these targets, researchers, architects, and building engineers are focused on reducing the building energy consumption, carbon emissions, and using and storing renewable energy sources.…”

Section: Introductionmentioning

confidence: 99%

“…10,11 To achieve these targets, researchers, architects, and building engineers are focused on reducing the building energy consumption, carbon emissions, and using and storing renewable energy sources. 7,9,12 Solar energy provides clean energy, which is abundantly available for whole year. However, it can be used only during sunny days thus; energy storage system is needed for later usage.…”

Section: Introductionmentioning

confidence: 99%

“…One third of greenhouse gas emissions and 40% of the energy consumption are produced from the building sector in worldwide. Therefore, buildings use huge amount of energy for daylighting, cooling, and heating in their interior environments 7‐9 . In November 2018, The European Commission has already commitment to reduce at least 40% of GHG emissions below to 1990 levels while improving energy efficiency by 32.5%, and increasing the renewable energy sources to 32% 10,11 .…”

Section: Introductionmentioning

confidence: 99%

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Phase change material impregnated wood for passive thermal management of timber buildings

et al. 2020

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The Scots pine (Pinus sylvestris L.) sapwood was impregnated with the eutectic mixture of capric acid (CA) and stearic acid (SA) as phase change material (PCM) via vacuum process for passive thermoregulation in timber buildings. The hygroscopic properties, mechanical properties, thermal energy storage (TES) characteristics and lab-scale thermo-regulative performance of wood/ CA-SA composite were evaluated. The produced composite from PCM was morphologically and physico-chemically characterized by SEM, FT-IR and XRD analysis. Thermal energy storage (TES) properties, cycling chemical/thermal reliability, and thermal degradation stability of the produced composite were determined by TG/DTA and DSC analysis. The hygroscopic tests revealed that the wood/CA-SA composite showed low water absorption (WA) and high anti-swelling efficiency (ASE) after 264 hours in water. Wood treatment with CA-SA increased the bending and compression strength of wood. TG/DTA data demonstrated that the wood/CA-SA composite left higher residue of 10.31% at 800 C than that of wood with 6.87%. The DSC measurements showed that the obtained wood/CA-SA composite had a good TES capacity of about 94 J/g at 23.94 C. The cycling DSC results confirmed the eutectic PCM in wood indicated high chemical stability and storage/release reliability even though it was run 600 times melt/freeze. According to thermal performance test, the wood/CA-SA composite has ability of storing excess heat in the environment and preventing the heat flow to the environment. It can be concluded that the fabricated wood/CA-SA composite can be used for indoor temperature regulation and energy saving in timber buildings.

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Thermal and cost analysis of various air filled double glazed reflective windows for energy efficient buildings

Cited by 34 publications

References 25 publications

A State of the Art of the Overall Energy Efficiency of Wood Buildings—An Overview and Future Possibilities

A State of the Art of the Overall Energy Efficiency of Wood Buildings—An Overview and Future Possibilities

Performances Study of Natural and Conventional Building Insulation Materials

Phase change material impregnated wood for passive thermal management of timber buildings

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