Large-scale building energy efficiency retrofit: Concept, model and control

Wu, Zhou; Wang, Bo; Xia, Xiaohua

doi:10.1016/j.energy.2016.04.124

Cited by 76 publications

(36 citation statements)

References 26 publications

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“…The system dynamics theory has been demonstrated as a useful tool for analysing the running characteristics of the system by Wu and Wang (2016) [41]. Therefore, we use this model to analyse dynamic feedback system characteristics based on the results in the last step.…”

Section: Characteristics Analysis Of Dynamic Feedback Systemmentioning

confidence: 99%

Dynamic Feedback Analysis of Influencing Factors of Existing Building Energy-Saving Renovation Market Based on System Dynamics in China

2019

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Existing buildings energy-saving renovation is an important means to cope with global warming and an essential component of achieving China’s energy conservation and pollution emissions reduction strategy goals. The development of the energy-saving renovation market is closely related to its influencing factors, which determine the reasons and conditions for the development of the system; therefore, it is necessary to study the influencing factors of energy-saving transformations. System dynamics was applied to explore the feedback relationship between the service subsystem, the demand market subsystem, and the market regulation subsystem. Analysis was performed for the intrinsic influencing factors of the development of the existing building energy-saving renovation market and the interaction law of feedback relationship. This paper discusses the basic characteristics of government incentives, Energy Service Company (ESCO) technology innovation, ESCO’s revenue, and owner’s awareness to promote the development of the existing building energy-saving renovation market. Base on those, it puts forward suggestions for promoting the market development of existing buildings energy-saving reconstruction. The findings provided a theoretical basis and guiding role for the Chinese government to formulate support policies for existing building energy-saving renovation. At the same time, it also provides reference for other countries to develop existing buildings energy-saving renovation market.

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Section: Characteristics Analysis Of Dynamic Feedback Systemmentioning

confidence: 99%

Dynamic Feedback Analysis of Influencing Factors of Existing Building Energy-Saving Renovation Market Based on System Dynamics in China

2019

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“…In that scenario, energy retrofit actions may reduce significantly the building energy demand [12]; by implementing some basic interventions on a large scale it is possible to accomplish remarkable energy savings, as reported in literature [13][14][15]. The ideal objective to reach is represented by the nZEB target [16].…”

Section: Introductionmentioning

confidence: 99%

Energy Use in Residential Buildings: Impact of Building Automation Control Systems on Energy Performance and Flexibility

2019

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This work shows the results of a research activity aimed at characterizing the energy habits of Italian residential users. In detail, by the energy simulation of a buildings sample, the opportunity to implement a demand/response program (DR) has been investigated. Italian residential utilities are poorly electrified and flexible loads are low. The presence of an automation system is an essential requirement for participating in a DR program and, in addition, it can allow important reductions in energy consumption. In this work the characteristics of three control systems have been defined, based on the services incidence on energy consumptions along with a sensitivity analysis on some energy drivers. Using the procedure established by the European Standard EN 15232, the achievable energy and economic savings have been evaluated. Finally, a financial analysis of the investments has been carried out, considering also the incentives provided by the Italian regulations. The payback time is generally not very long: depending on the control system features it varies from 7 to 10 years; moreover, the automation system installation within dwellings is a relatively simple activity, which is characterized by a limited execution times and by an initial expenditure ranging in 1000 € to 4000 €, related to the three sample systems.

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“…The energy consumed by existing buildings accounts for more than 30% of global energy use [1]. Given that the replacement rate of existing buildings by new buildings is only about 1.0-3.0% per annum [1], the building sector is expected to continue to be a major energy consumer in the coming decades [2]. Therefore, retrofitting existing older buildings is an important measure to reduce energy consumption in the building sector.…”

Section: Introductionmentioning

confidence: 99%

Energy Analysis of 4625 Office Buildings in South Korea

2019

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The purpose of the present study was to investigate the relevance of building thermal performance and characteristics to building energy consumption. This paper reports an energy analysis of 4625 office buildings in Seoul, South Korea, using data from the Korean national building energy database and architectural database. The following four research questions were investigated: (1) Do old buildings consume more energy than new ones? (2) Have strict prescriptive building energy codes contributed to the reduction in energy use intensity (EUI, kWh/m2·year) over the past several decades? (3) What are the characteristics of building energy consumption in terms of season, age, and cooling system (electric chiller vs absorption chiller)? (4) Which factors in the Korean building energy database are relevant to building energy consumption? The analyses revealed that, contrary to common assumptions, new buildings did not always consume less energy than old buildings, and it may be wrong to attribute intensification of prescriptive building energy codes directly to building energy efficiency improvements. In addition, the building characteristics (i.e., district, year built, number of floors, number of elevators, and total floor area) available in the Korean building energy database do not adequately explain building energy consumption, and the existing data collection method needs further improvement.

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Large-scale building energy efficiency retrofit: Concept, model and control

Cited by 76 publications

References 26 publications

Dynamic Feedback Analysis of Influencing Factors of Existing Building Energy-Saving Renovation Market Based on System Dynamics in China

Dynamic Feedback Analysis of Influencing Factors of Existing Building Energy-Saving Renovation Market Based on System Dynamics in China

Energy Use in Residential Buildings: Impact of Building Automation Control Systems on Energy Performance and Flexibility

Energy Analysis of 4625 Office Buildings in South Korea

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