Social housing refurbishment for the improvement of city sustainability: Identification of targeted interventions based on a disaggregated cost-optimal approach

Carpino, Cristina; Bruno, Roberto; Arcuri, Natale

doi:10.1016/j.scs.2020.102223

Cited by 28 publications

(17 citation statements)

References 26 publications

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“…Although there are numerous research studies applied to residential use in the initial stages, there is a lack of support systems for decision-making, based on multi-assessment models, that allow flexibility and openness to adapt and be transversal to the different building uses, such as schools, that belong to public administration under different socioeconomic contexts [10]. On the one hand, there are numerous existing buildings in a vulnerable and deteriorated situation that demand urban and architectural regeneration guidelines with feasible criteria [11], and also the establishment of different action levels, avoiding to always promote deep renovation works, which normally are considered unfeasible in their multiple dimensions [12].…”

Section: Introductionmentioning

confidence: 99%

Ensuring proper management of building renovation based on an optimised decision-making model: Application in schools and social housing from southern Europe.

Serrano-Jiménez

Díaz-López²,

Padura³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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One of the main challenges for architects and technicians is the efficient management of the built environment, in response to the growing deterioration and obsolescence in the building stock. This research introduces the design, development and application of a novel decision support system that assesses the multidisciplinary advantages or disadvantages of different intervention strategies, mainly focused on schools and social housing. The concept of the model aims to gather, interrelate and weight different renovation factors and variables, according to technical, social, energy and economic parameters, quantifying results on the impacts, consequences and benefits of each renovation strategy and providing practical outcomes in the design, construction, management and maintenance stages. This study uses schools and multi-family buildings, located in southern Europe, to apply and test the system iteratively in both building typologies, serving to adjust the calculation model and demonstrate its operation and replicability. The results are classified according to different intensity levels with their corresponding design alternatives along with a graphical output of results for decision-making. This model is expected to contribute to policy-making by introducing new theoretical and practical renovation guidelines, with a rational adjustment of proposals and ensuring effective and feasible action strategies in the built environment.

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Section: Introductionmentioning

confidence: 99%

Ensuring proper management of building renovation based on an optimised decision-making model: Application in schools and social housing from southern Europe.

Serrano-Jiménez

Díaz-López²,

Padura³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…Consequently, significant efforts, both in academia and professional practice, have been focused on the development of strategies that tackle the building environment [16][17][18]. Through multiple studies, heating and cooling have been identified as an important fraction of energy consumption, especially in residential buildings, and design strategies and policies have been focused on addressing this issue [19,20].…”

Section: Introduction Terraces and Public Space The Case Of Barcelonamentioning

confidence: 99%

The Energy Consumption of Terraces in the Barcelona Public Space: Heating the Street

et al. 2021

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Terraces, as outdoor extensions of food and beverage businesses located in the public realm, have very high potential to activate the streetscape, bring people together and improving urban experiences. Among the consequences of the current COVID-19 pandemic are the recommendations of maximizing outdoor environments when conducting human interactions. Therefore, outdoor eating has dramatically increased throughout the world, with terraces becoming a radical urban change in many streetscapes. The urgency of the situation, and rapid implementation of these changes, has revealed some aspects of this phenomenon that should be considered when adapting the regulations to this new reality. However, the research on their functioning and impact is limited. Additionally, although energy consumption in the architectural and urban field is considered fundamental, research has rarely addressed small business outdoor spaces, placing the focus instead on residential heating or public lighting. This study focuses on the intersection of these two gaps by analyzing a set of terraces in Barcelona and estimating the power installed in their outdoor heating devices. The goal is to determine the potential energy consumed, contrast it with other values more commonly used when researching architectural energy consumption and point out the lack of sustainability of these approaches to providing comfort. The calculations show that the installed power in Barcelona terraces is significant and, when estimating potential consumption, it presents values higher that the average heating consumption of residential units in Spain. These results support two main conclusions: first, the relevance of addressing the means of providing comfort in outdoor urban spaces due to the high magnitude of their potential energy consumption; second, the importance of adapting those systems to outdoor conditions, understanding the needs of the occupants and the limitations of the environment in order to develop sustainable solutions that provide comfort without attempting to heat the air of the street.

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“…The results revealed that a significant reduction of non-renewable primary energy consumption can be achieved using photovoltaic systems, despite the still unattractive installation cost. In fact, several authors [35,36] have reported the impact of the inclusion of PV panels in both new and renovated social housing. Nevertheless, a lack in the literature was identified as no consideration of the variability of the occupation rate was taken into account.…”

Section: Introductionmentioning

confidence: 99%

A Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing

et al. 2021

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The socioeconomic reality and the energy retrofit potential of the social housing neighbourhoods in Portugal are stimulating challenges to be addressed by research to pursue suitable energy efficient strategies to be integrated into these buildings. Therefore, this study explored a stochastic-based optimisation approach towards the integration of photovoltaic (PV) panels, considering different scenarios that combine the occupancy rate, the internal gains, the envelope refurbishment and the heating system efficiency. The optimisation approach has as its objective the minimisation of the life cycle cost of the photovoltaic system while using a limited space area on the rooftop for its installation. This study allowed concluding that the use of passive measures such as improving the thermal performance of the building envelope is essential to attain a lower optimal-sizing of a photovoltaic installation. The results reveal a decreasing trend in the PV optimal sizing, attaining a reduction up to 30% of the total number of PV panels installed on the sloped rooftop in several scenarios with 50% of occupancy rate. However, the impact can be greater when passive measures are coupled to more efficient heating systems, with higher COP, which result in a decrease up to 64% of the number of PV panels. Thus, the approach proposed is of paramount importance to aid in the decision-making process of design and sizing of photovoltaic installation, highlighting the practical application potential for social housing and a contribution for mitigation of the energy poverty of low-income families that live in these buildings.

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Social housing refurbishment for the improvement of city sustainability: Identification of targeted interventions based on a disaggregated cost-optimal approach

Cited by 28 publications

References 26 publications

Ensuring proper management of building renovation based on an optimised decision-making model: Application in schools and social housing from southern Europe.

Ensuring proper management of building renovation based on an optimised decision-making model: Application in schools and social housing from southern Europe.

The Energy Consumption of Terraces in the Barcelona Public Space: Heating the Street

A Case Study on a Stochastic-Based Optimisation Approach towards the Integration of Photovoltaic Panels in Multi-Residential Social Housing

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