Quantitative Analysis and Multi-Index Evaluation of the Green Building Envelope Performance in the Cold Area of China

Lu, Shilei; Wang, Zichen; Zhang, Tianshuai

doi:10.3390/su12010437

Cited by 11 publications

(6 citation statements)

References 33 publications

(19 reference statements)

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“…To seek a balance between thermal performance and energy efficiency in RE construction, in the present research, the particle size distribution, density, specific heat capacity, thermal conductivity, and thermal storage coefficients of the soil were evaluated. ln conjunction with WUFI Pro and WUFI Plus, the connection between the thermal performance indexes of new raw soil materials was also analyzed, a comprehensive multi-index evaluation method was established, and appropriate thickness and construction forms for new RE walls in Beijing were derived (see Figure 1) [26].…”

Section: Methodsmentioning

confidence: 99%

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Research on Optimization of the Thermal Performance of Composite Rammed Earth Construction

Hao

et al. 2022

Energies

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Rammed earth(RE) is a low-tech recyclable building material with good heat storage and moisture absorption performance that can better maintain the stability of the indoor thermal environment and improve indoor comfort. With innovations in and the development of new technology, the field of rammed earth construction technology is gradually expanding. However, deficiencies in the thermal insulation of traditional rammed earth structures make it impossible for them to meet China’s building energy codes in cold regions. This study constructs a comprehensive evaluation index of the thermal performance of rammed earth walls that is based on the heat transfer mechanism, optimizing the thickness of the boundary conditions of the building interior’s design temperature, as well as the energy demand and economic efficiency. This research also offers a new design for the thermal insulation of rammed earth construction by combining the building energy savings design code with WUFI Pro software. This study demonstrates that the optimum thickness of rammed earth construction in Beijing is about 360 mm, the thickness of extruded polystyrene board (XPS) is 50 mm (for public buildings) and 70 mm (for residential buildings), and the structural form of external insulation offers the highest performance benefit. In addition, this work also evaluates the risk of condensation inside composite rammed earth construction, finding that there is a risk of condensation on the exterior side of the wall and at the interface between the insulation panels and rammed earth wall, thus requiring an additional moisture-proof layer. In this study, thermal mass and insulation are fully considered and a design strategy for rammed earth construction given quantitatively, providing a theoretical basis for the application of rammed earth materials in cold regions.

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Section: Methodsmentioning

confidence: 99%

“…Energies 2022, 15, x FOR PEER REVIEW 3 of 24 index evaluation method was established, and appropriate thickness and construction forms for new RE walls in Beijing were derived (see Figure 1) [26].…”

Section: Methodsmentioning

confidence: 99%

Research on Optimization of the Thermal Performance of Composite Rammed Earth Construction

Hao

et al. 2022

Energies

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“…Some articles have studied building envelope design from its energy-saving potential, environmental consequences, and social impacts. It is of the utmost importance to optimize the balance between the cost and energy savings [25,26].…”

Section: Literature Reviewmentioning

confidence: 99%

Life Cycle Assessment of Dynamic Water Flow Glazing Envelopes: A Case Study with Real Test Facilities

et al. 2021

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High initial costs hinder innovative technologies for building envelopes. Life Cycle Assessment (LCA) should consider energy savings to show relevant economic benefits and potential to reduce energy consumption and CO2 emissions. Life Cycle Cost (LCC) and Life Cycle Energy (LCE) should focus on investment, operation, maintenance, dismantling, disposal, and/or recycling for the building. This study compares the LCC and LCE analysis of Water Flow Glazing (WFG) envelopes with traditional double and triple glazing facades. The assessment considers initial, operational, and disposal costs and energy consumption as well as different energy systems for heating and cooling. Real prototypes have been built in two different locations to record real-world data of yearly operational energy. WFG systems consistently showed a higher initial investment than traditional glazing. The final Life Cycle Cost analysis demonstrates that WFG systems are better over the operation phase only when it is compared with a traditional double-glazing. However, a Life Cycle Energy assessment over 50 years concluded that energy savings between 36% and 66% and CO2 emissions reduction between 30% and 70% could be achieved.

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“…About two-thirds of China's land is located in cold regions, where heating energy use accounts for about 40% of the total building energy consumption. There is enormous potential for conserving energy and reducing emissions in these regions [4]. Therefore, it is particularly important to promote and ensure sustainable development in cold regions by improving building energy efficiency and reducing environmental impact through reasonable Green Building design.…”

Section: Introductionmentioning

confidence: 99%

Research on green building design methods in cold regions

Wang

2023

ACE

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In response to the growing severity of the energy crisis, buildings in cold regions are faced with many challenges due to their unique geographical limitations and characteristics. This paper focuses on the design method of Green Buildings in cold climate, aiming to solve the poor thermal insulation performance, high energy consumption and environmental pollution. Firstly, the definition and background of Green Building in cold areas are introduced. The practical application effect of Green Building design in cold regions is discussed from different angles, and the development trend and suggestions of Green Building design in cold regions are put forward. In addition, in order to ensure that these measures achieve the desired effect, there is also a need for a sound evaluation system to monitor and evaluate the sustainability and practical effects of Green Buildings. The paper concludes with a summary of the future trend of Green Building design development in cold areas and suggestions. The research findings in this paper are of great importance in promoting sustainable building development in cold regions.

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Quantitative Analysis and Multi-Index Evaluation of the Green Building Envelope Performance in the Cold Area of China

Cited by 11 publications

References 33 publications

Research on Optimization of the Thermal Performance of Composite Rammed Earth Construction

Research on Optimization of the Thermal Performance of Composite Rammed Earth Construction

Life Cycle Assessment of Dynamic Water Flow Glazing Envelopes: A Case Study with Real Test Facilities

Research on green building design methods in cold regions

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