Improving the energy efficiency of aging retail buildings: a large department store in Lisbon as case study

Poço, Eduardo R. G.; Sousa, J.M.; Branco, P. J. Costa

doi:10.1007/s12667-020-00377-w

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…The implementation of environmentally friendly materials in buildings destined for public services was concluded with success. Despite this, given that the urban landscape of Lisbon is composed of primarily old buildings [62], the equipment changes were insufficient to adjust the region's energy spending levels adequately. Due to the urban characteristics of the LMA, the public transport sector tried to tackle its carbon footprint by investing in fewer pollutant buses and a more efficient railroad that could promote easier commutes.…”

Section: Discussionmentioning

confidence: 99%

Using the Impact-WEB_GIS Platform to Assess the Impacts of Environmental Sustainability Public Policies in the Lisbon Metropolitan Area

Medeiros,

Valente,

Pinto

et al. 2023

Sustainability

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Urban environmental sustainability is a growing concern within the United Nations and the European Union’s ongoing policy agendas to fight climate change. This paper contributes to this debate by presenting the main impacts of the Operational Programme for Sustainability and Use of Resources (POSEUR 2014–2020) in the Lisbon Metropolitan Area (NUTS II). The analysis was completed using the Impact-WEB_GIS platform, specially developed for this study, supported by a territorial impact assessment methodology. In addition to the production of general impact scores, five analytic dimensions were further analysed, supported by state-of-the-art (i) low-emissions economy, (ii) adaptation to climate change, (iii) risk prevention and management, (iv) environmental protection and (v) resource efficiency. At a strategic level, the research created awareness of the need to adjust regional policy to the region’s characteristics on environmental sustainability matters.

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Section: Discussionmentioning

confidence: 99%

Using the Impact-WEB_GIS Platform to Assess the Impacts of Environmental Sustainability Public Policies in the Lisbon Metropolitan Area

Medeiros,

Valente,

Pinto

et al. 2023

Sustainability

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“…Existing buildings are, in general, constrained by old equipment, aging infrastructure and inadequate operations resources. Two artificial neural network (ANNs) models were developed by Poço et al [49] for a retail store located in Lisbon in order to predict the building power consumption and indoor average temperature; the tool was able to verify the impact of small variations in the air-handling unit electricity consumption. Only a methodology, described in [50,51], was found for buildings refurbishment.…”

Section: State Of the Art In Artificial Neural Network And Fuzzy Logic Toolsmentioning

confidence: 99%

Development of a Decisional Procedure Based on Fuzzy Logic for the Energy Retrofitting of Buildings

et al. 2021

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This paper concerns the development of an automatic tool, based on Fuzzy Logic, which is able to identify the proper solutions for the energy retrofitting of existing buildings. Regarding winter heating, opaque and glazing surfaces are considered in order to reduce building heat dispersions. Starting from energy diagnosis, it is possible to formulate retrofitting proposals and to evaluate the effectiveness of the intervention considering several aspects (energy savings, costs, intervention typology). The innovation of this work is represented by the application of a fuzzy logic expert system to obtain an indication about the proper interventions for building energy retrofitting, providing as inputs only few parameters, with a strong reduction in time and effort with respect to the software tools and methodologies currently applied by experts. The novelty of the paper is the easy handling properties of the developed tool, which requires only a few data about the buildings: not many such methods were developed in the last years. The energy requirements for winter heating before and after particular interventions were evaluated for a consistent set of buildings in order to produce the required knowledge base for the tool’s development. The identified appropriate inputs and outputs, their domains of discretization, the membership functions associated to each fuzzy set, and the linguistic rules were deduced on the basis of the knowledge determined in this was. Therefore, the system was successfully validated with reference to further buildings characterized by different design and architecture features, showing a good agreement with the intervention opportunities evaluated.

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A Study on the Energy Efficiency of an Energy Management System for Convenience Stores

Thomyapitak,

Saengsikhiao,

Vessakosol

et al. 2024

Energies

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This research presents a solution for improving energy efficiency in convenience stores by implementing a building energy management system (BEMS) that uses new logic control in air conditioning and refrigeration systems. These systems currently consume the most energy in convenience stores. Implementing this system not only reduces the energy consumption of the compressors in both systems but also minimizes energy loss due to low desired temperatures in the sale area while maintaining the cabinet temperature at the same level. An experiment was conducted at a 314-square-meter convenience store that was open from 6:00 a.m. to 11:00 p.m., and we demonstrated a 4.4-year payback period by controlling AC units close to the desired sale-area temperature of 25 degrees Celsius and increasing the suction pressure at a medium-temperature CDU by 0.3 bar or 31 kPa. This resulted in energy savings of 7.1 kilowatt-hours per day, or 2591.5 kilowatt-hours per year, for the air conditioning system and 2.8 kilowatt-hours per day, or 1022.0 kilowatt-hours per year, for the refrigeration system, resulting in a total energy savings of 9.9 kilowatt-hours per day, or 3613.5 kilowatt-hours per year. The convenience store can use the results of this research to improve the energy efficiency of its cooling system, which includes air conditioning and refrigeration systems, thereby promoting sustainable energy conservation.

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Improving the energy efficiency of aging retail buildings: a large department store in Lisbon as case study

Cited by 3 publications

References 29 publications

Using the Impact-WEB_GIS Platform to Assess the Impacts of Environmental Sustainability Public Policies in the Lisbon Metropolitan Area

Using the Impact-WEB_GIS Platform to Assess the Impacts of Environmental Sustainability Public Policies in the Lisbon Metropolitan Area

Development of a Decisional Procedure Based on Fuzzy Logic for the Energy Retrofitting of Buildings

A Study on the Energy Efficiency of an Energy Management System for Convenience Stores

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