In Situ Measurements of Energy Consumption and Indoor Environmental Quality of a Pre-Retrofitted Student Dormitory in Athens

Barmparesos, Nikolaos; Papadaki, Dimitra; Karalis, Michalis; Fameliari, Kyriaki; Assimakopoulos, Margarita Niki

doi:10.3390/en12112210

Cited by 15 publications

(9 citation statements)

References 56 publications

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“…Several studies have examined IEQ in homes and K-12 schools with young kids as research objects [17][18][19][20][21][22][23][24][25]. While children and youth represent a potentially vulnerable population, adult students in universities are a large prospective cohort whose institutional environment should be explored.…”

Section: Introductionmentioning

confidence: 99%

Indoor Environmental Quality Evaluation of Lecture Classrooms in an Institutional Building in a Cold Climate

2019

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In this paper, ventilation, indoor air quality (IAQ), thermal and acoustic conditions, and lighting were studied to evaluate the indoor environmental quality (IEQ) in an institutional building at the University of Alberta in Edmonton, Canada. This study examined IEQ parameters, including pressure, illuminance, acoustics, carbon dioxide (CO2) concentration, temperature, and humidity, with appropriate monitors allocated during a lecture (duration 50 min or 80 min) in four lecture classrooms repeatedly (N = 99) from October 2018 to March 2019 with the objectives of providing a comprehensive analysis of interactions between IEQ parameters. The classroom environments were maintained at 23 ± 1 °C and 33% ± 3% RH during two-season measurements. Indoor mean CO2 concentrations were 550–1055 ppm, and a mean sound level of 58 ± 3 dBA was observed. The air change rates were configured at 1.3–6.5 per hour based on continuous CO2 measurements and occupant loads in the lectures. A variance analysis indicated that the within-lecture classroom variations in most IEQ parameters exceeded between-lecture classrooms. A multilayer artificial neural network (ANN) model was developed on the basis of feedforward networks with a backpropagation algorithm. ANN results demonstrated the importance of the sequence of covariates on indoor conditions (temperature, RH, and CO2 level): Air change rate (ACR) > room operations (occupant number and light system) > outdoor conditions.

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Section: Introductionmentioning

confidence: 99%

Indoor Environmental Quality Evaluation of Lecture Classrooms in an Institutional Building in a Cold Climate

2019

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“…A rigorous examination of the various elements of the building, even at an early stage, may seem costly in terms of money and time, but it allows for the optimization of a prospective rehabilitation project. According to this assumption, both thermo-hygrometric comfort conditions and energy savings are primary characteristics to guarantee sustainable costs and improvement of the indoor environment [41][42][43].…”

Section: Open Standards For Interoperabilitymentioning

confidence: 99%

Building Information Modeling as an Effective Process for the Sustainable Re-Shaping of the Built Environment

et al. 2021

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This paper focuses on the definition of a method supported by digital processes for a sustainable and user-orientated re-design of the existing building stock. Based on the analysis of the methodological and procedural aspects of the computational approach to architectural design in relation to different performance conditions, the research addresses the adoption of Building Information Modeling (BIM), intended as a powerful method for coordinating the complexity of the multiple, interdisciplinary and conflicting aspects involved in the rehabilitation of buildings. In addition to the advantages in terms of control and management, the BIM process has proven its effectiveness in tackling the issue of sustainability, allowing all actors involved in the research to share information and pro-actively control various outcomes of a building’s performance, such as energy and environmental quality. To show the opportunities and limitations of the digital management in information-based processes, the activities carried out in the framework of the European Horizon 2020 project “Pro-GET-onE—Proactive synergy of inteGrated Efficient Technologies on buildings’ Envelopes” are reported. The research, based on a case study method, which is applied to a student residence in Athens, demonstrates that BIM possesses great potentialities for developing effective and efficient construction and renovation processes toward buildings with high quality standards.

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“…These interventions result in higher energy efficiency, renewal of the building envelope, thus updated asset value (Ferrante et al 2018). Combined with new and efficient heat, ventilation, and air conditioning (HVAC) systems, their piping, and the inclusion of renewable energy sources (RES) on the roof, the architectural components aim to achieve the level of nearly zero energy building (Assimakopoulos et al 2018;Barmparesos et al 2019;Ferrante et al 2019). Worth mentioning are also the contributions that address the environmental impact of the project (Luca Guardigli et al 2019a;L.…”

Section: Introductionmentioning

confidence: 99%

Seismic Strengthening of Existing RC Buildings With External Cross-Laminated Timber (CLT) Walls Hosting an Integrated Energetic and Architectural Renovation

Badini

Aondio

Ott

et al. 2021

Preprint

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In this study a timber-based integrated solution is presented to solve at once common issues affecting typical reinforced concrete (RC) existing buildings, such as seismic and energy performances, providing an eco-friendly alternative to steel external bracing systems. Cross-laminated timber (CLT) walls are provided perpendicularly to the external façades as strengthening elements while interposed CLT slabs are foreseen at each floor level to host new architectural units together with a new envelope. While the connections to the foundations and to the existing RC frames are provided respectively with steel brackets and axial-connectors distributed along the height of the building, a post-tensioned connection, between CLT panels (PT-CLT connection), is implemented in the system to guarantee resistance to horizontal actions acting parallel to existing façades with consequent structural independence and architectural freedom. A numerical model is developed with finite element software characterizing each type of connector for linear and non-linear analyses. Modal analyses with response spectrum are performed to verify structural elements and connectors, while pushover analyses with target displacement checks are performed to assess the obtained seismic improvement. Finally, the preassembled architectural components that allow to renovate the envelope and the provided assembly procedure are revealed.

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In Situ Measurements of Energy Consumption and Indoor Environmental Quality of a Pre-Retrofitted Student Dormitory in Athens

Cited by 15 publications

References 56 publications

Indoor Environmental Quality Evaluation of Lecture Classrooms in an Institutional Building in a Cold Climate

Indoor Environmental Quality Evaluation of Lecture Classrooms in an Institutional Building in a Cold Climate

Building Information Modeling as an Effective Process for the Sustainable Re-Shaping of the Built Environment

Seismic Strengthening of Existing RC Buildings With External Cross-Laminated Timber (CLT) Walls Hosting an Integrated Energetic and Architectural Renovation

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