Analysis of the energy performance strategies of school buildings site in the Mediterranean climate: A case study the schools of Matera city

Rospi, Gianluca; Cardinale, Nicola; Intini, Francesco P.; Negro, Elisabetta

doi:10.1016/j.enbuild.2017.07.018

Cited by 37 publications

(29 citation statements)

References 15 publications

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“…Rospi et al analysed several schools in southern Italy, calculating the difference between measured and simulated consumption. After assessing several passive strategies of the building envelope, the authors concluded that actions on windows result in higher primary energy savings [6]. This solution is of great importance in climates with higher solar radiation levels, given the high internal loads of school buildings (mainly due to high occupancy).…”

Section: Introductionmentioning

confidence: 99%

Thermal and Lighting Consumption Savings in Classrooms Retrofitted with Shading Devices in a Hot Climate

2018

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Most educational buildings in southern Spain do not meet current energy requirements as weak thermal envelopes and the lack of cooling systems lead to severe discomfort in classrooms, especially when temperatures are above 30 • C. Given that global warming is expected to worsen this situation in coming decades, one of the first steps to be taken is to protect window openings from high levels of solar radiation by adding shading devices to reduce indoor temperatures and improve visual comfort. The aim of this research is to evaluate the reduction in thermal and lighting consumption in a classroom where a solar protection system in the form of an egg-crate shading device was installed. Two classrooms-one with an egg-crate device and another with no shading system-were monitored and compared for a whole year. The use of an egg-crate device in these classrooms reduced indoor operative temperatures during warmer periods while also improving indoor natural illuminance levels. Moreover, annual electric air conditioning consumption decreased by approximately 20%, with a 50% reduction in electric lighting consumption. These savings in electricity were largely conditioned by the use patterns observed in these ambient systems.Energies 2018, 11, 2790 2 of 17 were therefore considered potential components for the reduction of energy consumption, but this is also conditioned by user patterns, as concluded in the laboratory experiments by Zeiler et al. [7].While solar radiation through glazed surfaces severely affects indoor temperatures and visual comfort, heat gains through window openings improve natural illuminance levels and increase indoor temperatures in winter, causing visual discomfort and overheating in summer. Although solar energy facilitates the passive heating of buildings, excessive solar gains can lead to overheating and glare, so that solar control systems must therefore cover aspects such as thermal and visual comfort and energy saving. Although it should be possible to look out and maintain visual contact with the exterior while respecting the architectural aesthetics of the building, the main function of shading devices is to reduce solar gains in the summer season.Various authors have attempted to establish a classification [8] and comparative evaluation of different solar-control systems [9] using integrated solutions for energy, acoustic, and lighting performances [10]. Much of this analysis focuses on the impact on energy requirements [11] and energy demand [12] in office buildings. Dynamic control strategies are needed to promote optimum performance of these shading devices given the opposing requirements in winter and summer.Eltaweel and Su [13] proposed modifying the position and angle of Venetian blinds, using Grasshopper's plugins to optimize daylight in office buildings, whereas other authors preferred simplified solutions which are easier to apply in building refurbishment. Freewan [14] compared the effect of different external vertical and diagonal fins and egg-crate devices behind a brise-soleil...

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Section: Introductionmentioning

confidence: 99%

Thermal and Lighting Consumption Savings in Classrooms Retrofitted with Shading Devices in a Hot Climate

2018

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“…Much of the relevant literature has proposed integrated methodologies for helping to identify major energy consuming plants/equipment in school buildings and potential energy conservation measures [11,12,[14][15][16]. Extensive literature has provided basic guidelines for the application of an integrated assessment of the energy performances of the building-plant system in schools, taking into account indoor climate, indoor air quality, well-being, health, and development of student cognitive and comprehension activities, based on in situ measurements, monitoring campaigns, energy audit and cost analysis, and transient simulations [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. Generally, these methodologies involve architectural features and plant system analysis; experimental field measurements; collected data processing on user/student perception; dynamic simulation of building-plant system for thermo-physical and energy performance and energy consumption evaluation; thermal comfort assessment by transient simulation; assessment of the energy saving, efficacy/efficiency and cost due to retrofit and refurbishment solutions for school energy improvement and indoor quality and comfort achievement [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…Sometimes, plants (e.g., heating terminals like radiators) have historical value and cannot be modified and/or replaced [8,9,35,36]. Most of the literature on energy efficiency of cultural heritage buildings has suggested operations complying with current standards concerning building envelope and plant systems [8,9,15,19,26,31,35,36].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Energy Sustainable Operations on a Historical Building. The Dante Alighieri High School in Florence

Balocco

Colaianni

2018

Sustainability

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Italy has a huge cultural heritage, most of which consists of historical buildings that have changed their original function and use over time. The complex question of building and plant system refurbishment and retrofitting mainly derives from this crucial aspect. The aim of this paper is to provide a simple provisional tool useful for the assessment of efficient, energy sustainable refurbishment solutions for historical buildings and their plant systems. The Dante Alighieri high school (with an important music department) in Florence was the case study. We proposed a method based on dynamic simulations that allows plant design guarantying indoor air quality (IAQ) and thermal comfort, as well as energy efficiency, but, at the same time offering reversibility and mobility as well as ease of management and maintenance. Transient simulations of building-plant system were specifically addressed dynamic control and adaptive proportional regulation, so as to ensure that the plant adapts to the change of building and indoor environment thermo-physics and thermo-hygrometric parameters. Results showed that important refurbishment and retrofitting operations for energy saving are possible and effective for historical buildings if they are oriented to sustainability-i.e., low environmental impact, indoor thermo-hygrometric conditions, ventilation, air quality, and user wellbeing improvement-in compliance with preventive protection constraints.

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“…The Information Technology Building (Building 19) of Rockhampton campus of CQUniversity has been evaluated as a case study following Australia/New Zealand Standards energy audit procedures [12][13][14]. In the reference building the main electric users are HVAC and lighting systems.…”

Section: Reference Building Energy Analysismentioning

confidence: 99%

Energy Audit and Analysis of an Institutional Building under Subtropical Climate

Ghadi¹,

Baniyounes²

2018

IJECE

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Evaluation and estimation of energy consumption are essential in order to classify the amount of energy used and the way it is utilized in building. Hence, the possibility of any energy savings potential and energy savings opportunities can be identified. The intention of this article is to study and evaluate energy usage pattern of the Central Queensland University campus' buildings, Queensland, Australia. This article presents the field survey results from the audit of an office building and performance-related measurements of the indoor environmental parameters, for instance, indoor air temperature, humidity and energy consumption concerned to the indoor heating and cooling load. Monthly observed energy usage information was employed to investigate influence of the climate conditions on energy usage. Keyword: Energy audit Energy consuption Energy savings Copyright © 2018 Institute of Advanced Engineering and Science.All rights reserved. Corresponding Author:Ali M Baniyounes, Departement of Electrical Engineering, Applied Science Private University, Shafa Badran Rd, Shafa Badran, Amman, Jordan. Email: Al_younes@asu.edu.jo INTRODUCTIONThe institutional buildings energy consumption relies on a building's envelop, HVAC, lighting systems' efficiency, and building function and maintenance. From monthly energy usage data and information and supporting building's specification, different types of electrical energy usage have been recorded. The primary set is the reference energy load that can be described as the climatic condition independent energy consumption such as lighting, and other electrical machineries. The other set is HVAC system energy consumption including AHUs and plants room equipment. In this study, energy savings opportunities are identified as a means to setup baseline against which the results of any retrofit measures can be evaluated.The purpose behind energy usage control and management systems is to reduce building's energy consumption while maintaining comfortable and healthy living space and decreasing greenhouse gas emissions. The Australian and New Zealand Standard includes two dominant energy control techniques; the decrease of wasted energy and the decrease in energy demand which are identified as energy conservation strategies and improvement of energy efficiency [1], [2]. Based on the ASHRAE Handbook 1999, energy audit is classified into walk-through energy evaluation, energy review and evaluation and a comprehensive study of overall concentrated alteration to project energy savings opportunity. The walk-through assessment grants a primary projection of energy savings potential throughout assessing building's energy cost and system efficiency using the evaluation of energy associated bills and information. According to ASHRAE Standard 105-1984, a yearly building's energy usage information is essential in building's energy usage assessment and energy performance analysis [3].

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Analysis of the energy performance strategies of school buildings site in the Mediterranean climate: A case study the schools of Matera city

Cited by 37 publications

References 15 publications

Thermal and Lighting Consumption Savings in Classrooms Retrofitted with Shading Devices in a Hot Climate

Thermal and Lighting Consumption Savings in Classrooms Retrofitted with Shading Devices in a Hot Climate

Assessment of Energy Sustainable Operations on a Historical Building. The Dante Alighieri High School in Florence

Energy Audit and Analysis of an Institutional Building under Subtropical Climate

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