Optimization design research of insulation thickness of exterior wall based on the orientation difference of solar radiation intensity

Li, Tao; Liu, Qingxia; Mao, Qianjun; Chen, Min; Ma, Chao; Wang, Dengjia; Liu, Yanfeng

doi:10.1016/j.applthermaleng.2023.119977

Cited by 10 publications

(3 citation statements)

References 47 publications

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“…When using the same insulation material, the heating energy consumption decreased by 9.0%. ODI demonstrated substantial advantages in thermal balance, material savings, and reduced energy consumption for northward and southward rooms [135].…”

Section: Insulation Effectmentioning

confidence: 99%

Solar Wall Technology and Its Impact on Building Performance

Ghamari,

Sundaram

2024

Energies

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Solar walls provide transformative solutions by harnessing solar energy to generate electricity, improve thermal comfort, and reduce energy consumption and emissions, contributing to zero-energy buildings and mitigating climate change. In hot and humid regions, solar walls can reduce indoor temperatures by 30% to 50%, significantly improving energy efficiency. Optimizing the performance of solar walls includes factors such as glazing, shading, solar orientation, ventilation, and catalytic techniques, allowing them to be adapted to different climates. Innovative solar wall variants that include photovoltaic panels, water storage, and phase-change materials offer multifunctionality and sustainability in building design and are in line with global energy efficiency and environmentally conscious goals. In addition, innovative solar wall variants that combine photovoltaic panels, water storage, and phase-change materials promise even more sustainability in building design. These multifunctional solar wall systems can efficiently heat, cool, and generate energy, further reducing a building’s environmental impact. Solar walls have the potential to significantly reduce heating energy consumption; align with global goals for energy-efficient, environmentally conscious, and climate-responsive building design; and offer dynamic and adaptable solutions for sustainable architecture.

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Section: Insulation Effectmentioning

confidence: 99%

Solar Wall Technology and Its Impact on Building Performance

Ghamari,

Sundaram

2024

Energies

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“…Residential buildings and industries use more than 60% of the energy produced. , The scientific approach to mitigating an energy shortage is to generate new energy using different sources or optimize the available energy. , Using an insulating layer on the surface of the heat source vessel effectively reduces the heat loss from the surface . Accordingly, the thermal performance and optimal thickness of insulation materials for a given scenario have long interested researchers, and these issues are now being investigated in light of the current need for energy conservation in the face of finite energy resources. − Several heat transfer-related investigations have aimed to compute the optimal generation, loss, or transfer of heat in different scenarios and setups with or without thermal insulation . These setups differ regarding shape, requirements, and utility, which has increased the requirement to optimize thermal systems. − Numerous studies have reported methods to optimize heat transfer problems using different optimization techniques, as described below.…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Heat Loss from an Insulation Material and Boundary Layer Thickness of Airflow through a Hot Plate Using Nonlinear Least-Squares Error and Linear Programming Algorithms

Alrasheed

2023

ACS Omega

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Heat loss is a major challenge in heat transfer problems. Several researchers have minimized heat loss for different heat transfer cases, focusing on one optimization technique; however, not all optimization techniques are suitable for a given problem. A limited number of studies have compared different techniques for a given problem under boundary conditions and constraints. This review revisits basic heat transfer problems and identifies a promising technique for each problem to minimize heat loss. The paper considers three techniques: nonlinear least-squares error (LSE), interior point linear programming (IPLP), and genetic algorithm. Two cases are studied: 1. heat loss optimization from cylindrical insulating surfaces and 2. laminar airflow on a heated plate. The results are compared for each technique, and a suitable technique is recommended for each considered case. Nonlinear LSE is found to be most suitable for case 1. IPLP and GA are recommended for the Case 2 problem. The average thermal conductivity is found to be 0.081 W/mK. The average insulation thickness is found to be 213.25 mm. This research will act as a basis for future research to justify and implement suitable techniques for different heat transfer problems.

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“…Most of the previous studies have solely focused on evaluating the thermal performance (i.e., thermal resistance or thermal transmittance) of building envelopes [5][6][7][8][9]. One critical factor influencing the thermal performance of exterior wall envelopes is the thickness of insulation along with its orientation relative to sun exposure, resulting in varying solar radiation intensities [10,11]. However, the building envelope may still be vulnerable to water condensation and mold growth, even with a high thermal resistance (R-value).…”

Section: Introductionmentioning

confidence: 99%

Assessing Hygrothermal Performance in Building Walls Engineered for Extreme Cold Climate Environments

Palani,

Khaleghi,

Salehi

et al. 2023

Sustainability

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Buildings located in extreme cold climates encounter challenges (e.g., heat loss, condensation, and frozen utilities), especially within their wall envelopes. These challenges also play a pivotal role in occupant health, comfort, and the structural integrity of the building. While the existing literature has primarily focused on thermal performance, this study underscores the importance of evaluating hygrothermal performance within wall envelopes, given the existence of mold growth even in cases of high thermal resistance. Therefore, the aim of this study was to evaluate the hygrothermal performance of an adaptable house wall (AHW) panel that incorporates composite infill panels paired with vacuum-insulated panels to endure harsh cold conditions in Alaska. Therefore, three steps were proposed to: (1) collect the material and thermal properties of the AHW; (2) model the hygrothermal performance of the AHW in WUFI® PRO v6.7 software; and (3) analyze the results. The results revealed a moderate risk of mold growth in the inner plywood layer of the AHW, whereas the outer plywood layer showed zero risk, indicating an acceptable condition. The findings aid decisionmakers in recognizing potential mold-related issues in building walls before advancing to the construction phase.

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Optimization design research of insulation thickness of exterior wall based on the orientation difference of solar radiation intensity

Cited by 10 publications

References 47 publications

Solar Wall Technology and Its Impact on Building Performance

Solar Wall Technology and Its Impact on Building Performance

Optimizing the Heat Loss from an Insulation Material and Boundary Layer Thickness of Airflow through a Hot Plate Using Nonlinear Least-Squares Error and Linear Programming Algorithms

Assessing Hygrothermal Performance in Building Walls Engineered for Extreme Cold Climate Environments

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