10 preguntas de los edificios energía cero: revisión del estado del arte

D'Amanzo, Micaela; Mercado, María Victoria; Ganem, Carolina

doi:10.22320/07190700.2020.10.02.02

Cited by 4 publications

(1 citation statement)

References 49 publications

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“…En este sentido, un edificio resulta pequeño para participar en un mercado de flexibilidad energética en el entorno construido, siendo necesaria la agrupación de varios edificios (Jensen et al, 2017). Debido a las problemáticas energéticas generadas en los centros urbanos, se busca disminuir la demanda de energía residencial impulsando medidas dirigidas a mejorar la eficiencia energética edilicia (Belussi et al, 2019;Cárdenas-Jirón y Chang Lou, 2019;D' Amanzo et al, 2020), por medio de estrategias tales como: conservación energética a través del aislamiento de la envolvente, ganancia solar directa, producción de energía in situ por la incorporación de sistemas fotovoltaicos, calentamiento de agua por medio de colectores solares y otras.…”

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Determinación de variables edilicias presentes en morfologías del Área Metropolitana de Mendoza para la eficiencia energética

2022

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La morfología urbano-edilicia es una determinante en el consumo de energía y es relevante en regiones áridas templadas con generoso recurso solar. Las ciudades insertas en zonas áridas afrontan una serie de riesgos que amenazan su sostenibilidad, impactadas por los efectos del cambio climático y la urbanización, con consecuencias sobre la inequidad de consumos. El objetivo del trabajo es evaluar en el Área Metropolitana de Mendoza (AMM) las características de las variables: altura edilicia, separación edilicia, relación altura/separación edilicia y densidad edilicia. Se trabajó con sistemas de información geográfica (SIG) y se realizó el análisis estadístico de los resultados, a fin de implementar a futuro un modelo para determinar estrategias dirigidas a maximizar la eficiencia y generación energética del sector edilicio urbano con un aprovechamiento máximo de los recursos disponibles. Las manzanas analizadas poseen valores medios-bajos de separación edilicia y valores bajos de: altura edilicia, relación altura/separación edilicia y densidad edilicia. El 49,10 % de manzanas posee una separación edilicia media de 16,61 m, el 73,90 % tiene una altura media <3,5 m, el 90,52 % cuenta con valores medios <0,30 de variable relación altura/separación edilicia de manzanas urbanas y el 80,85 % presenta valores medios de densidad edilicia <2m2/m3. Con base en los resultados obtenidos, se concluye que el AMM posee un modelo de ciudad difusa adaptado al clima semidesértico. Se cree factible revalorizar, preservar y regenerar el modelo actual de “ciudad oasis” en zonas ya consolidadas y plantear un nuevo modelo urbano a futuro que considere los diferentes contextos culturales, el patrimonio urbano-edilicio y paisajístico, las diferentes oportunidades y las limitaciones para el progreso hacia la sostenibilidad energético-ambiental.

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Section: Marco Teóricounclassified

Determinación de variables edilicias presentes en morfologías del Área Metropolitana de Mendoza para la eficiencia energética

2022

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Energy Efficiency Analysis of East-West Oriented Photovoltaic Systems for Buildings: A Technical-Economic-Environmental Approach

Carrera,

Molina-Santana,

Álvarez-Alvarado

et al. 2023

IEEE Access

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This research is based on achieving modular solutions for photovoltaic solar systems (PVSS) in buildings. Several studies tend to inadequately address the analysis of photovoltaic (PV) module orientation, often relying on the conventional south-facing orientation. The objective is to analyze and compare the influence of PV module orientation. Therefore, two proposed PVSS were analyzed, incorporating module orientation and inclination variations. A hotel electrical consumption study was conducted in 2018-2019. The incidence of shadows over the roofed surfaces of the building was analyzed from a three-dimensional model using Sketchup software. The annual and monthly generation, as well as the performance of the installation, were estimated using PVsyst software for each projected arrangement. An economic and environmental study was carried out for these proposals to remark on their feasibility and influence on environmental protection. As a result, the east-west oriented PV system is the most efficient and feasible with a peak power of 113.24 kW p and a Performance Ratio (PR) of 0.80. The east-west oriented proposal allows avoiding emissions of 301 421 TCO 2 into the atmosphere. These promising results were due to both PV modules physical orientation and their lower daily working temperature. Also, an increase in electrical production per module and an optimization of the surface are achieved. These results highlight the significance of this research as they encourage the adoption of these systems, leading to improved investment recovery periods and enhanced environmental conservation efforts.INDEX TERMS renewable energy technologies; electricity; photovoltaic solar system; efficiency building roofs.

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Passive Cooling Strategies in Summer for Office Buildings in Temperate Clear Sky Climates: Assessment of Effectiveness With Zero-Energy Building Criteria

D´Amanzo,

Andreoni-Trentacoste,

Montiel

et al. 2023

ASME Journal of Engineering for Sustainable Buildings and Cities

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Passive energy-efficient design in temperate climates with clear-sky conditions and high solar radiation can lead to a significant reduction in energy use while promoting occupant comfort. This paper presents an optimization of the performance of an office building with a mixed-mode run, including night ventilative cooling and shading strategies in summer. The objective is to assess their effectiveness with zero-energy building criteria. The building design integrates an efficient envelope and renewable energy generation from photovoltaic solar panels on-grid. On-site measurements were taken to collect hygrothermal data and energy demand information. Two office configurations were discussed, open plan and individual office, both options with a high trend to overheat. For all orientations tested, multiple horizontal overhangs have better performance than vertical ones. Results from the net energy balance in the base model present a primary energy demand of 116 kWh/m2/year and the optimization model of 55 kWh/m2/year. To conclude, the positive impact of the implementation of passive design strategies rises the comfort hours in-use period in the open plan office a 70% and in the individual office a 55% and a decrease of 60% of primary energy demand.

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10 preguntas de los edificios energía cero: revisión del estado del arte

Cited by 4 publications

References 49 publications

Determinación de variables edilicias presentes en morfologías del Área Metropolitana de Mendoza para la eficiencia energética

Determinación de variables edilicias presentes en morfologías del Área Metropolitana de Mendoza para la eficiencia energética

Energy Efficiency Analysis of East-West Oriented Photovoltaic Systems for Buildings: A Technical-Economic-Environmental Approach

Passive Cooling Strategies in Summer for Office Buildings in Temperate Clear Sky Climates: Assessment of Effectiveness With Zero-Energy Building Criteria

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