Embodied and operational energy assessment of different construction methods employed on social interest dwellings in Ecuador

Macías, José; Iturburu, Lissette; Rodríguez, Carlos; Agdas, Duzgun; Boero, Andrea; Soriano, Guillermo

doi:10.1016/j.enbuild.2017.06.016

Cited by 29 publications

(8 citation statements)

References 27 publications

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“…The frequency of use and occupancy of classrooms could considerably increase the energy bills [15]. In the case of Ecuador, commercial buildings account for 20.5% of the total Ecuadorian electricity demand [18,19]. Therefore, it is necessary to look for initiatives that help to improve the efficiency in the use of energy in the buildings maintaining the levels of comfort of the users, with minimum cost and reduction of their carbon footprints.…”

Section: Introductionmentioning

confidence: 99%

Energy Saving Strategies and On-Site Power Generation in a University Building from a Tropical Climate

Litardo¹,

Palme²,

Hidalgo-León³

et al. 2021

Applied Sciences

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This paper compares the potential for building energy saving of various passive and active strategies and on-site power generation through a grid-connected solar photovoltaic system (SPVS). The case study is a student welfare unit from a university campus located in the tropical climate (Aw) of Guayaquil, Ecuador. The proposed approach aims to identify the most effective energy saving strategy for building retrofit in this climate. For this purpose, we modeled the base line of the building and proposed energy saving scenarios that were evaluated independently. All building simulations were done in OpenStudio-EnergyPlus, while the on-site power generation was carried out using the Homer PRO software. Results indicated that the incorporation of daylighting controls accounted for the highest energy savings of around 20% and 14% in total building energy consumption, and cooling loads, respectively. Also, this strategy provided a reduction of about 35% and 43% in total building energy consumption, and cooling loads, respectively, when combined with triple low-e coating glazing and active measures. On the other hand, the total annual electric energy delivered by the SPVS (output power converter) was 66,590 kWh, from where 48,497 kWh was supplied to the building while the remaining electricity was injected into the grid.

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Section: Introductionmentioning

confidence: 99%

Energy Saving Strategies and On-Site Power Generation in a University Building from a Tropical Climate

Litardo¹,

Palme²,

Hidalgo-León³

et al. 2021

Applied Sciences

Self Cite

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“…A building life cycle can be divided into six stages: material extraction and production, transportation, construction, operation, demolition, and recycling [27,41]. The accounting methodology for residential buildings [24,41], and the Intergovernmental Panel on Climate Change (IPCC) guidelines were followed, in order to quantify the carbon footprints of urban residential buildings in Xiamen City.…”

Section: Calculation Methodologymentioning

confidence: 99%

“…Early research by Christopher Jones and Daniel M. Kammen, using U.S. national household survey data, suggested a relationship between HCFs and population density. Some studies have looked at the environmental impacts related to building energy usage [9,12,[25][26][27][28][29][30], while other researchers have focused on energy-saving awareness and behaviors of apartment residents [12,31,32]. Still other researchers have quantified the environmental impacts of a single office building or dwelling throughout its life cycle [14,33], and one study analyzed the life cycle energy for residential buildings [13].…”

Section: Introductionmentioning

confidence: 99%

Carbon Footprints of Urban Residential Buildings: A Household Survey-Based Approach

Yan

Cui

et al. 2018

Sustainability

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With China's rapid urbanization process, massive and extensive construction materials are aggregated as stock in urban areas. Understanding the carbon footprints of residential buildings is crucial for achieving the goal of low-carbon cities. In this study, to reveal the emission characteristics of residential buildings regarding carbon footprint, stratified random sampling was developed, and a face-to-face questionnaire was conducted, to obtain critical information on residential buildings and the socioeconomic status of 1092 families from 46 communities in Xiamen City, China. The community buildings' structures were identified, and carbon emissions from the residential buildings were quantified based on analysis of the entire building life cycle. The building life cycle can be divided into six stages: extraction and production; transportation; construction; operation; demolition; and recycling. The household carbon footprints ranged from 0.37 tCO 2 /year to 22.45 tCO 2 /year; the per capita carbon footprints ranged from 0.19 tCO 2 /year to 11.23 tCO 2 /year. Overall, for the 46 surveyed communities, the average household and per capita carbon footprints were 4.11 tCO 2 /year and 1.4 tCO 2 /year, respectively. The total carbon footprints of urban residential buildings were 4.86 MtCO 2 /year. Analysis of the extraction and production stage revealed that steel recycling could avoid almost 0.05 MtCO 2 /year. No significant correlations were found between energy use awareness and energy use. The findings can be used by Chinese energy policymakers to understand the views of various energy users, and to re-attune the efforts against these opinions and interests. However, we consider this study a start and not an end to the importance of gauging opinions on energy security from the population of energy users. Nonetheless, awareness campaigns through print and electronic media could be another tool for life cycle emissions reduction in building sector.

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“…In addition, work is underway to introduce these advances into the regulatory and control processes for building energy systems Evangelisti [61]. These jobs can lead to savings that could be of social interest Macias et al [62].…”

Section: From Fieldwork To Virtual Design: Bim As a Tool Towards Sustmentioning

confidence: 99%

UAV + BIM: Incorporation of Photogrammetric Techniques in Architectural Projects with Building Information Modeling Versus Classical Work Processes

et al. 2020

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The current computer technology facilitates the processing of large volumes of information in architectural design teams, in parallel with recent advances in-flight automation in unmanned aerial vehicles (UAVs) along with lower costs, facilitates their use to capture aerial photographs and obtain orthophotographs and 3D models of relief and terrain textures. With these technologies, 3D models can be produced that allow different geometric configurations of the distribution of construction elements on the ground to be analyzed. This article presents the process of implementation in a terrain integrated into the early stages of architectural design. A methodology is proposed that covers the detailed capture of terrain, the relationship with the architectural design environment, and its implementation on the plot. As a novelty, an inverse perspective to the remaining disciplines is presented, from the inside of the object to the outside. The proposed methodology for the use of UAVs integrates terrain capture, generation of the 3D mesh, superimposition of environmental realities and architectural design using building information modeling (BIM) technologies. In addition, it represents the beginning of a line of research on the implementation of the plot and the layout of foundations using UAVs. The results obtained in the study carried out in three different projects comparing traditional technologies with the integration of UAVs + BIM show a clear improvement in the second option. The use of new technologies applied to the execution and control of work not only improves accuracy but also reduces errors and saves time, which undoubtedly indicates significant savings in costs and deviations in the project.

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Embodied and operational energy assessment of different construction methods employed on social interest dwellings in Ecuador

Cited by 29 publications

References 27 publications

Energy Saving Strategies and On-Site Power Generation in a University Building from a Tropical Climate

Energy Saving Strategies and On-Site Power Generation in a University Building from a Tropical Climate

Carbon Footprints of Urban Residential Buildings: A Household Survey-Based Approach

UAV + BIM: Incorporation of Photogrammetric Techniques in Architectural Projects with Building Information Modeling Versus Classical Work Processes

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