Energy-saving optimization based on residential building orientation and shape with multifactor coupling in the Tibetan areas of western Sichuan, China

Ren, Wenjing; Zhao, Jingyuan; Chen, Ming

doi:10.1080/13467581.2022.2085725

Cited by 14 publications

(3 citation statements)

References 52 publications

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“…The results showed that as the volume of the atrium increased, the specific energy consumption of the building also increased and surrounded atriums were more energy efficient. Ren [5] quantitatively analysed the coupled effects of geographical and meteorological factors on building shape and developed an optimization method for building shape design based on an equation for optimal building width. Rehab [6] studied the selection of optimal shading devices for south-facing facades of traditional buildings in Alexandria, Egypt, by controlling the temperature setpoint of the HVAC system.…”

Section: Introductionmentioning

confidence: 99%

Global sensitivity analysis of energy consumption factors of building envelope structure for high-rise office buildings in different climate zones

Ye,

Zhao

2024

Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023)

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The integration of building energy-saving measures during early architectural design and the energy-efficient retrofitting of existing buildings hold paramount importance in achieving carbon neutrality. This study focuses on five representative climate zones in China to assess the sensitivity of building energy consumption to ten key external envelope parameters. Leveraging two research prototypes from 18 high-rise mixed-use office buildings in the hot-summer and warm-winter climate zone (Hong Kong), the DeST platform is utilized to simulate the impact of various design parameters on the annual building load. Employing the Sobol method for quantitative analysis, the study examines the contribution of each parameter to building energy consumption. Findings reveal distinct sensitivities of building envelope parameters concerning heating load, cooling load, and total load indicators, contingent upon diverse climate regions and building types. Under the total load indicator, the heat transfer coefficients of glass and roof, along with the window-to-wall ratio on the west and south facades, emerge as the most sensitive design parameters, while the solar radiation absorptance of walls and roofs show lower sensitivity. This research offers valuable insights for energy-efficient design and building renovations, paving the way for a more sustainable and environmentally conscious future.

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Section: Introductionmentioning

confidence: 99%

Global sensitivity analysis of energy consumption factors of building envelope structure for high-rise office buildings in different climate zones

Ye,

Zhao

2024

Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023)

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“…Few studies focused During recent decades, more than 100 building energy simulation software programs (BLAST, DOE-2, EnergyPlus, TRNSYS, DeST, ESP-r) or self-programming based on energy conservation have been primarily utilized worldwide (Ren et al, 2023). These software solutions encompass a range of functionalities, including building dynamic load simulation and HVAC equipment system simulation.…”

Section: Introductionmentioning

confidence: 99%

Modelling and onsite testing on dynamic thermal responses of built environment in passive solar rooms on Tibetan plateau

Zhang,

Han,

2024

Front. Energy Res.

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It of great importance in assessing built thermal environment level and evaluating corresponding indoor air conditioning demand for energy conservation in construction sectors. Nevertheless, because of the unique meteorological features in plateau area, classical building performance simulation approach contributes to thermal performance evaluation errors since most design codes or standards relies on low attitude regions. In this paper, a modified and improved dynamic thermal design model is put forward for built environment and energy consumption estimation for passive buildings for plateau buildings. Moreover, the simplified experiment is set up to monitor dynamic thermal responses for modelling building. The testing validation illustrate that the onsite measurement accuracy level is quite acceptable for engineering applications with less than 30% relative change range coefficient. Besides, the experiment data demonstrates that window-to-wall ratios, architectural orientation, thermal insulation coefficients, have substantial impacts for solar heat gains in plateau buildings. The study renders building design guidance for energy conservation in high altitude plateau areas.

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“…In winter, the orientation of a building can significantly reduce its heating energy consumption [23], and an appropriate orientation can help reduce about 35% of a building's thermal losses during the winter season [24]. Regarding building energy consumption, the best orientation varies with geographical location and climatic conditions [25]. In the UK, the optimal residential orientation is south, while the least efficient is northwest [26].…”

Section: Introductionmentioning

confidence: 99%

Effect of Orientation and Skylight Area Ratio on Building Energy Efficiency in the Qinghai–Tibet Plateau

Wang,

Qin,

Wang

et al. 2024

Buildings

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The Qinghai–Tibet plateau, with an average altitude of over 4000 m, has low annual average temperatures and a high demand for building heating. This region’s abundant solar energy resources hold substantial practical significance for improving the indoor heat environment and reducing building energy consumption. This paper investigates the impact of orientation and skylight area ratio on building heat load and indoor temperature, using both actual measurement and simulation methods, with a case study of the comprehensive building at Beiluhe Observation and Research Station of Frozen Soil Engineering and Environment (Beiluhe Station), located in the Qinghai–Tibet Plateau region. Initially, a model was established using the EnergyPlus 9.4 software, with orientation variables set from east to west in 15° increments, to simulate the variations in building heat load resulting from orientation changes; simulations were then conducted for three different skylight area ratios under the optimal orientation to evaluate their influence on heat load and indoor temperature. The results show that for the architectural style examined in this paper, the optimal building orientation within the region is 30° south by east, with the optimal orientation range spanning from 45° south by east to due south. Heating load is negatively correlated with the skylight area ratio, and beyond a certain threshold, the rate of decrease in heat load diminishes or even stabilizes. The conclusions of this paper offer guidance for the orientation and skylight design of new buildings on the Qinghai–Tibet Plateau.

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Energy-saving optimization based on residential building orientation and shape with multifactor coupling in the Tibetan areas of western Sichuan, China

Cited by 14 publications

References 52 publications

Global sensitivity analysis of energy consumption factors of building envelope structure for high-rise office buildings in different climate zones

Global sensitivity analysis of energy consumption factors of building envelope structure for high-rise office buildings in different climate zones

Modelling and onsite testing on dynamic thermal responses of built environment in passive solar rooms on Tibetan plateau

Effect of Orientation and Skylight Area Ratio on Building Energy Efficiency in the Qinghai–Tibet Plateau

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