Energy Performance of a Light Wood-Timber Structured House in the Severely Cold Region of China

Zhen, Meng; Zhang, Bin

doi:10.3390/su10051501

Cited by 11 publications

(5 citation statements)

References 9 publications

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“…That means different boundary conditions and, thus, a difficult comparison. However, timber-based buildings are known for their low heat accumulation capability [6,26], which is primarily an undesirable feature. However, it enabled us to proceed with the research.…”

Section: Discussionmentioning

confidence: 99%

“…According to [6], timber-structured houses can provide sufficient thermal protection, even in severely cold climates. Fulfilling current requirements, timber-framed structures are outstanding not only in terms of thermal and acoustic performance but also in low weight and relatively small thickness compared to traditional masonry walls [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Measured Impact of Material Settlement in a Timber-Frame Wall with Loose Fill Insulation

Michálková

Ďurica

2023

Buildings

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Loose-fill thermal insulations in timber-frame structures are designed to provide efficient thermal protection with the ability to fill intricate details. In a previous study, we detected several air cavities formed in timber-framed wall samples filled with loose-fill mineral fiber insulation. This discovery led us to retrofit the walls by adding appropriate insulation, thus enabling us to evaluate the importance of proper amendment. This paper focuses on a wall fragment with an 80 mm high air gap at the top and a 30 mm high cavity in the middle of the wall height. The following paper compares data collected before the discovery and after the replenishment (refill of air gaps with additional insulation), evaluating potential thermal performance improvement. We were able to quantify the impact of these defects on the external wall exposed to realistic conditions. Based on temperature and relative humidity measurements, the results show significant advancement in the middle of wall thickness with an 8 °C and 45% difference. The results show that although this defect did not directly affect the energy balance of the building, it significantly increases the risk of mold growth due to thermal bridging.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Measured Impact of Material Settlement in a Timber-Frame Wall with Loose Fill Insulation

Michálková

Ďurica

2023

Buildings

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“…Buildings, as physical objects, have received a lot of attention from researchers interested in improving energy efficiency. [11][12][13]. According to the lifecycle of a building, researchers analyzed building energy efficiency from the aspects of material, architectural design, construction and operational systems.…”

Section: Literature Reviewmentioning

confidence: 99%

A Microeconomic Methodology to Evaluate Energy Efficiency by Consumption Behaviors and Strategies to Improve Energy Efficiency

Xiang

Yin

2018

Sustainability

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The present paper highlights a quantitative method to maximize energy efficiency based on the minimum energy consumption and maximum quality of life from consumption behaviors. Quality of life is expressed by utility, which is a Constant Elasticity of Substitution (CES) function of demands for composite goods, car trips and public transport trips. Individual energy consumption is estimated by the demand of goods and we applied this method to Nagasaki to evaluate energy efficiency. Our results showed that 28,154 kcal of energy is needed to support the life of one individual per day in Nagasaki. Furthermore, we found that 76% of energy was used for composite goods and 24% was used for mobility goods. To achieve maximum energy efficiency, our results highlight that energy should be reduced by increasing the consumption of composite goods and public transport trips, while simultaneously decreasing the consumption of car trips. Compared to residents in urban and suburban areas, individuals in Central Business Districts (CBD) were found to have higher energy efficiency. Findings in Nagasaki suggest three policy implications: First, eco-energy consumption patterns should be encouraged to decrease energy use, while maintaining quality of life. Second, mixed land use is attributed to increased energy efficiency. Lastly, the energy efficiency of mobility could be improved though increasing the attraction of public transport.

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“…The current environmental crisis is triggering scientists worldwide to develop more sustainable solutions in the building industry. At first glance, the easiest way is to return to traditional and thus natural materials and incorporate them into the design [ 1 , 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Verification of Thermal Insulation in Timber Framed Walls

Michálková

Ďurica

2022

Materials

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Current environmental crisis calls for sustainable solutions in the building industry. One of the possible solutions is to incorporate timber-framed constructions into designs. Among other benefits, these structures are well established in many countries, originating in traditional building systems. This paper focuses on experimental timber-frame walls. Different wall assemblies vary in thermal insulation materials and their combinations. We investigated ten experimental wall structures that have been exposed to natural external boundary conditions since 2015. The emphasis was on their state in terms of visual deterioration, mass moisture content, and thermal conductivity coefficient. We detected several issues, including defects caused by inappropriate realization, causing local moisture increase. Material settlement in loose-fill thermal insulation was another issue. Concerning was a significant change in the thermal conductivity of wood fiber insulation, where the current value almost doubled in one case compared to the design value determined by the producer.

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Energy Performance of a Light Wood-Timber Structured House in the Severely Cold Region of China

Cited by 11 publications

References 9 publications

Measured Impact of Material Settlement in a Timber-Frame Wall with Loose Fill Insulation

Measured Impact of Material Settlement in a Timber-Frame Wall with Loose Fill Insulation

A Microeconomic Methodology to Evaluate Energy Efficiency by Consumption Behaviors and Strategies to Improve Energy Efficiency

Experimental Verification of Thermal Insulation in Timber Framed Walls

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