Thermal performance optimization of envelope in the energy-saving renovation of existing residential buildings

Huang, Jianen; Wang, Shasha; Teng, Feihong; Feng, Wei

doi:10.1016/j.enbuild.2021.111103

Cited by 58 publications

(19 citation statements)

References 21 publications

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“…In terms of technology management, the main focus has been on the optimal combination of technology methods, such as research on the optimal combination of energy efficiency measures for traditional buildings [21], research on the optimization of the thermal performance of the envelope of energy-efficient retrofit traditional residential buildings [22], and research on the combination of technologies for energy efficiency retrofitting and heritage conservation of historic buildings [23]. In addition, simulation methods have also been used to assess the performance risk of contract energy management projects [24] and to design contract decision-making models between building owners, Energy Service Companies (ESCOs) and renters [25].…”

Section: Technology Management and Policy For Green Retrofitting Of T...mentioning

confidence: 99%

Evolutionary analysis of stakeholder behavior in green retrofitting of traditional residential buildings based on dissemination and game models

et al. 2023

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To achieve carbon peaking and carbon neutrality goals in China, green retrofitting of traditional residential buildings is the one of the important ways. Therefore, the dynamics process of the change of the resident group intention to retrofit and its impact on the behavior of the tripartite game between the government, investment retrofitting enterprises and residents needs to be analyzed. Firstly, a dissemination model of green retrofitting intentions among resident groups is constructed, and it is coupled with the tripartite game model. Then, through numerical simulation, the dissemination laws of intention for green retrofitting among resident groups and its influence on the evolution process of the tripartite game are analyzed. The results show that: (1) The rate at which the triad of government, investment retrofitting enterprises and residents reaches steady state is influenced by the impact of changes in the level of social climate on the rate of conversion of potential and participating residents to immune residents. When the rate of enterprises investment and residents participation increases, the rate of government choice of incentive strategies decreases; (2) greater government regulation and subsidies will increase the intention of residents and retrofitting enterprises to participate. The ideal steady state without government incentives can be achieved when the group size of participating residents is increased by improving the level of government publicity and education and the technology level of the enterprises; (3) the intention of enterprises to invest is closely related to the cognitive benefits and the level of risk perception of residents. The conclusions of the study can be used as a reference for the government to make green retrofitting policies for traditional residential buildings.

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Section: Technology Management and Policy For Green Retrofitting Of T...mentioning

confidence: 99%

Evolutionary analysis of stakeholder behavior in green retrofitting of traditional residential buildings based on dissemination and game models

et al. 2023

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“…Ghalambaz, Yengejeh and Davami carried out a multi-objective optimization for an office building using a grey wolf optimizer to simultaneously minimize the energy consumption by lightings and the energy consumption due to heating and cooling [25]. For decision variables, the multi-objective optimization for building retrofitting involves envelope [26][27][28], HVAC [29,30] and other control measures [31]. For envelope, the EEMs discussed most frequently were the insulation materials, insulation thickness, window types and window-wall ratio (WWR) [20,32].…”

Section: Literature Reviewmentioning

confidence: 99%

A Multi-stage Decision Framework for Optimal Energy Efficiency Measures of Educational Buildings: A case study of Chongqing

Cui

Hong

Liu

et al. 2022

Preprint

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Buildings consume large amounts of energy resources and emit considerable amounts of greenhouse gas: especially existing buildings which do not meet energy standards. Building retrofitting is considered one of the most promising and significant solutions to reduce energy consumption and greenhouse gas emissions. However, finding suitable energy efficiency measures for existing buildings is extremely difficult due to the existence of thousands of retrofit measures and the need to meet various objectives. In this paper, a multi-stage decision framework including a multi-objective optimization model and a ranking method is proposed to help decision-makers select optimal energy efficiency measures. The multi-objective optimization model takes into account the economic objectives and the environmental objectives, expressed as retrofit cost and energy consumption, respectively. The entropy weight ideal point ranking method is adopted to sort the Pareto front and make a final decision. Then, the proposed decision framework is implemented for the retrofit planning of an educational building in Chongqing, China. The results show that decision-makers can identify near-optimal energy efficiency measures quickly through multi-objective optimization and can select suitable energy efficiency measures by the ranking method. Moreover, energy consumption can be reduced by building retrofitting. The energy consumption of the case building is 64.20 kWh/m2 before retrofitting, and the value can be reduced by 6.79% through retrofitting. Furthermore, the reduction of building energy consumption was significantly improved by applying the decision framework. The highest value of energy consumption is 59.84 kWh/m2, while the lowest value is 27.11 kWh/m2 when implementing the multi-stage decision framework. Thus, this paper provides a useful decision framework for decision-makers to formulate suitable energy efficiency measures.

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“…The use of thermal insulation materials is one of the most effective procedures for reducing the electricity consumption of buildings and thus decreasing household expenditure. Thermal insulation materials have been used in the envelopes of buildings, such as walls, roofs, and windows [2][3][4][5][6]. In modern buildings, roof and window glass are used for aesthetics and to increase internal brightness, making it is necessary to find a material to coat the glass in order to reduce the internal heat of buildings.…”

Section: Introductionmentioning

confidence: 99%

Zinc Oxide Synthesis from Extreme Ratios of Zinc Acetate and Zinc Nitrate: Synergistic Morphology

et al. 2022

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The synthesis of ZnO comprising different ratios of zinc acetate (ZA) and zinc nitrate (ZN) from the respective zinc precursor solutions was successfully completed via a simple precipitation method. Zinc oxide powders with different mole ratios of ZA/ZN were produced—80/1, 40/1, and 20/1. The crystallinity, microstructure, and optical properties of all produced ZnO powders were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-Vis-NIR spectrophotometry. The average agglomerated particle sizes of ZnO-80/1, ZnO-40/1, and ZnO-20/1 were measured at 655, 640, and 620 nm, respectively, using dynamic light scattering (DLS). The optical properties of ZnO were significantly affected by the extreme ratio differences in the zinc precursors. ZnO-80/1 was found to have a unique coral-sheet structure morphology, which resulted in its superior ability to reflect near-infrared (NIR) radiation compared to ZnO-40/1 and ZnO-20/1. The NIR-shielding performances of ZnO were assessed using a thermal insulation test, where coating with ZnO-80/1 could lower the inner temperature by 5.2 °C compared with the neat glass substrate. Due to the synergistic effects on morphology, ZnO-80/1 exhibited the property of enhanced NIR shielding in curtailing the internal building temperature, which allows for its utilization as an NIR-reflective pigment coating in the construction of building envelopes.

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Thermal performance optimization of envelope in the energy-saving renovation of existing residential buildings

Cited by 58 publications

References 21 publications

Evolutionary analysis of stakeholder behavior in green retrofitting of traditional residential buildings based on dissemination and game models

Evolutionary analysis of stakeholder behavior in green retrofitting of traditional residential buildings based on dissemination and game models

A Multi-stage Decision Framework for Optimal Energy Efficiency Measures of Educational Buildings: A case study of Chongqing

Zinc Oxide Synthesis from Extreme Ratios of Zinc Acetate and Zinc Nitrate: Synergistic Morphology

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