Passive solar sunspace in a Tibetan buddhist house in Gannan cold areas: Sensitivity analysis

Zhang, Lili; Dong, Zhuojun; Liu, Fei; Li, Haolin; Zhang, Xuemei; Wang, Kai; Chen, Chuan; Tian, Congshan

doi:10.1016/j.jobe.2023.105960

Cited by 7 publications

(3 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This space is equivalent to adding buffer space between indoors and outdoors, reducing the direct heat exchange between the external climate environment and the building body, reducing indoor heat dissipation, and achieving the insulation effect [36]. Lili Zhang et al [37] analyzed a representative Tibetan Buddhist house with solar space in Gannan, assessed the thermal comfort of the building, and ranked the impact of building orientation, additional sunspace depth, glass type, external wall and roof insulation type and thickness, and wall and roof thickness in terms of thermal comfort and energy consumption through sensitivity analysis and numerical simulation, providing suggestions for the design of additional sunspace in this area. Lingyong Ma et al [38] proposed an additional sunspace for rural residential buildings that uses PCM walls and silica gel aerogel glass to reduce indoor temperature fluctuations in cold regions.…”

Section: Introductionmentioning

confidence: 99%

Optimization Analysis of an Energy-Saving Renovation Scheme for Building Envelopes of Existing Rural Houses Based on a Comprehensive Benefit Evaluation

Cao,

Sun,

et al. 2024

Buildings

View full text Add to dashboard Cite

In the cold regions of China, the existing rural houses are widely distributed and in large numbers. There are widespread problems such as low thermal performance of building envelopes, high building energy consumption, and poor indoor thermal environments. Reducing the energy consumption of building heating by reforming the envelope structure can reduce the environmental pollution caused by heating. In this paper, the existing rural houses in Tongchuan City, Shaanxi Province are taken as the research object, and EnergyPlus software is used to calculate building heating energy consumption, and the schemes are compared and selected via the entropy value method. Based on a comprehensive benefit evaluation, the best scheme for the renovation of building envelopes of rural houses in Tongchuan City is put forward. The research results show that the energy saving rate of buildings can reach more than 50% after renovation. In the evaluation of energy saving, incremental cost, return on investment, carbon emission reduction and unguaranteed hours, the weights are 0.1915, 0.2104, 0.2312, 1755, and 0.187, respectively. The best renovation scheme for rural housing is as follows: the thickness of the XPS board is 90 mm for exterior wall insulation; the thickness of the XPS board is 80 mm for roof insulation; the window-to-wall ratio of additional sunspace is 0.6; and the type of exterior windows is a broken-bridge hollow aluminum window of 6 + 12A + 6 (mm).

show abstract

Section: Introductionmentioning

confidence: 99%

Optimization Analysis of an Energy-Saving Renovation Scheme for Building Envelopes of Existing Rural Houses Based on a Comprehensive Benefit Evaluation

Cao,

Sun,

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

“…The outcomes demonstrated that orientation, the window-to-wall ratio, and radiation absorption coefficients of external walls and roofs are significant parameters that affect energy consumption in office buildings located in subtropical regions. Taking the sunroom attached to a Tibetan Buddhist building in the Gannan region as an example, Zhang [18] found that the thickness of roof insulation and the roof had the most significant effect on thermal comfort and energy use through GSA and LSA. Saurbayeva [19] conducted the multi-stage sensitivity analysis to investigate the factors affecting the energy consumption of phase change material-integrated residential buildings in the savannah climate zone.…”

Section: Introductionmentioning

confidence: 99%

Multi-Stage Sensitivity Analysis of the Energy Demand for the Cooling of Grain Warehouses in Cold Regions of China

Zhang,

Ye,

et al. 2024

Agriculture

View full text Add to dashboard Cite

The early design parameters exert a considerable influence on the cooling energy demand of a granary building in operation. In order to investigate the impact of various parameters on energy use, a grain warehouse energy model was constructed using the Ladybug + Honeybee tools on the Grasshopper platform. Three global energy sensitivity methods were used to analyze the model, and the sizes of the influential parameters were determined and ranked. The study uncovered that the cooling energy demand of the grain warehouse was primarily influenced by factors such as the cooling set-point temperature, roof solar absorptance, roof and exterior wall insulation thickness, window type, and orientation. On this basis, a local sensitivity analysis was conducted for the highly sensitive parameters to identify their influence trend and optimal design range. The results showed that the cooling energy demand of the grain warehouse increases faster as the cooling set-point temperature decreases, with the highest growth rate occurring at a temperature below 18 °C. Lower solar absorptance of the roof is conducive to reducing the cooling energy demand of the grain warehouse. When the thickness of the roof thermal insulation is less than 120 mm and the thickness of the external wall thermal insulation is less than 60 mm, energy use decreases more quickly with greater insulation thickness. It is advisable to use traditional or new windows with thermal insulation and shuttered windows. Furthermore, the optimal position of the long side of the granary was between 10° west and 10° east of north. This research could provide guidance for the energy-saving design and renovation of granary buildings in cold regions of China.

show abstract

“…On the other hand, solar energy utilization stands as a pivotal topic in residential energy conservation. Notably, the use of passive solar energy offers novel strategies to enhance thermal comfort and energy efficiency in addressing the energy concerns of traditional homes [11,12]. One such strategy involves the addition of sunrooms on the southern side of houses to mitigate heat loss during winter and optimize solar utilization, catering to both energy conservation and thermal comfort needs [13][14][15][16].…”

Section: Introduction 1previous Studiesmentioning

confidence: 99%

Passive Energy Conservation Strategies for Mitigating Energy Consumption and Reducing CO2 Emissions in Traditional Dwellings of Peking Area, China

Xie,

Fan,

Zhang

et al. 2023

Sustainability

View full text Add to dashboard Cite

Within China, brick dwellings stand as archetypal relics of traditional habitation, embodying a “living fossil” status. The sustainability of these dwellings is contingent upon the integration of energy-conservation strategies. This study scrutinized and empirically assessed a representative dwelling in the Peking area. Using numerical simulations, the impact on energy consumption of factors such as insulation and glazing type, external wall thickness, insulation thickness, and solar energy utilization was evaluated. The outcomes reveal that introducing external thermal insulation—specifically, expanded polystyrene panels with a thickness of 60 mm and 40 mm for the roof and exterior walls, respectively—along with a sunspace of depth 1.5 m yielded superior energy efficiency. Additionally, substituting conventional roofing with solar tiles exhibited a potential annual electricity generation coupled with an annual solar radiation conversion efficiency of 17%. Collectively, these strategies induced a substantial reduction in annual energy consumption. This study presents tailored energy-conservation measures and provides design decision support for architects’ practical recommendations on thermal environment control of passive traditional dwellings in the Peking area.

show abstract

Passive solar sunspace in a Tibetan buddhist house in Gannan cold areas: Sensitivity analysis

Cited by 7 publications

References 58 publications

Optimization Analysis of an Energy-Saving Renovation Scheme for Building Envelopes of Existing Rural Houses Based on a Comprehensive Benefit Evaluation

Optimization Analysis of an Energy-Saving Renovation Scheme for Building Envelopes of Existing Rural Houses Based on a Comprehensive Benefit Evaluation

Multi-Stage Sensitivity Analysis of the Energy Demand for the Cooling of Grain Warehouses in Cold Regions of China

Passive Energy Conservation Strategies for Mitigating Energy Consumption and Reducing CO2 Emissions in Traditional Dwellings of Peking Area, China

Contact Info

Product

Resources

About