Glazing’s techno-economic performance: A comparison of window features in office buildings in different climates

Aste, N.; Buzzetti, Michela; Pero, Claudio Del; Leonforte, Fabrizio

doi:10.1016/j.enbuild.2017.10.088

Cited by 27 publications

(18 citation statements)

References 35 publications

(58 reference statements)

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“…After collecting data on relevant information and costs for case studies, the model was carried out with a budget of 600,000 USD to 1,3000,000 USD and a project duration of up to 30 years (corresponding to the life of a solar panel [52,53]). Besides, according to previous studies [64], and in order to ensure the light transmission of the building, the authors propose the lower and upper bounds of the solar cell ratio on the façades as follows: Lob = 0% and Ub = 80%.…”

Section: Research Resultsmentioning

confidence: 99%

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Building a Decision-Making Support Framework for Installing Solar Panels on Vertical Glazing Façades of the Building Based on the Life Cycle Assessment and Environmental Benefit Analysis

et al. 2020

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Glazing is considered as a preferred solution for the buildability, aesthetic, and comfort of commercial buildings since glass cover can protect occupants from external environmental conditions, ensure the light transmission, and provide view and ventilation. At the same time, in the context of climate change and global warming, the use of renewable solar energy, such as solar and wind power, are encouraged to be utilized. Specifically, solar energy has become a renewable energy source that is clean and endless, at reasonable cost, to contribute to energy security as well as ensure sustainable development. Therefore, the study proposes a method for supporting the decision making in installing solar panels on vertical glazing façades of the building in the worst case that the remaining radiant energy from the sun was only transferred to the inside of the building. The Life Cycle Assessment and the Life Cycle Costing methodologies are applied to consider both environmental and economic aspects. The proposed method can (1) minimize the project cost (including initial investment cost and operation cost) during the building lifetime; (2) analyze the optimal budget to minimize the total life-cycle cost of the building over its lifespan and maximize the renewable energy generated from the sunlight entering buildings in different directions. The results show that with different initial investments, the investor will have a corresponding solution for choosing an optimal installation ratio for each type of glass combined with the installation ratio of solar panels on the façades to reach the optimal energy efficiency as well as environmental performance. This study is beneficial for investors in selecting energy-saving solutions in office buildings in the beginning phase of the project life cycle.

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Section: Research Resultsmentioning

confidence: 99%

“…Results are shown in Table 7 and Figure 7. [64], it is analyzed to select an average cost at 50 USD/T CO 2 during the calculation period)…”

Section: Research Resultsmentioning

confidence: 99%

Building a Decision-Making Support Framework for Installing Solar Panels on Vertical Glazing Façades of the Building Based on the Life Cycle Assessment and Environmental Benefit Analysis

et al. 2020

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“…Poorly ventilated dwellings are vulnerable to overheating particularly if their windows are not well protected against direct solar radiation (Hamdy et al, 2017). In modern office buildings thermally-insulated envelopes enhance overheating even in cold climates (Aste et al, 2018). This negative impact of solar gains on the yearly energy balance limits the amount of glazing or recommends using external solar shading devices.…”

Section: Introductionmentioning

confidence: 99%

Analytical solutions to evaluate solar radiation overheating in simplified glazed rooms

Moreno

Hernández

2018

Building and Environment

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Calculation methods for the energy demand of buildings require the evaluation of the solar energy which is transmitted indoors through the transparent elements of the building envelope. This energy contributes to raise indoor temperature. Some of the outdoor solar beam and diffuse radiation impinging on the exterior surface of the glazings is transmitted indoors and is diffusely reflected on interior surface. After multiple diffuse reflections between walls and glazings, a proportion of this incoming radiation is absorbed by the opaque walls and the interior surface of the glazings raising the indoor temperature. The objective of this study is to present analytical solutions for a very simple room with a glazing subjected to solar radiation with a normal angle of incidence. Namely, this study yields analytical expressions for: (i) the effective absorptance, (ii) the back absorptance of the glazing subjected to indoor diffuse irradiance and (iii) the indoor temperature. The effective absorptance of the room is compared with that obtained in Cucumo et al. (1995) and advanced numerical simulations are carried out by means of IDA ICE (EQUA, 2017) to validate the analytical expression for the indoor temperature.

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“…Además, el análisis de costes en construcción para la rehabilitación energética de edificios y la calificación energética global (Valdivieso, 2014) pone de manifiesto que no siempre una mayor inversión económica se corresponde con la calificación energética más alta (Ortiz, Fonseca i Casas, Salom, Garrido Soriano, & Fonseca i Casas, 2016). Esto significa que la sustitución de vidrios y carpinterías de precios elevados, en obras de rehabilitación energética, no tienen por qué dar siempre el mínimo consumo del edificio, sino que se requiere un análisis minucioso y personalizado en función de cada caso (Aste, Buzzetti, Del Pero, & Leonforte, 2018). Los diferentes vidrios del hueco de ventana son componentes clave en la L envolvente del edificio influyendo tanto en la iluminación como en las ganancias y pérdidas de calor, afectando al consumo energético tanto en verano como en invierno.…”

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Análisis de la influencia, en la demanda de climatización, de estrategias pasivas en viviendas con grandes superficies acristaladas, mediante un código de simulación. La casa Farnsworth = Analysis of the influence, in climate control demand, of passive strategies in houses with large glazed surfaces, by means of a simulation code. The Farnsworth house

Aguilera

Viñas

Rodríguez

et al. 2018

ADE

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ResumenEl mayor consumo energético en el sector residencial se debe a las instalaciones de climatización. Existen numerosos estudios de viviendas plurifamiliares orientados a optimizar este ítem, pero pocos se centran en la vivienda unifamiliar. Un punto crítico en esta tipología edificatoria son los huecos de ventanas, que suponen una gran superficie sobre el total de la envolvente. El objetivo de este trabajo es analizar, cuantificar y valorar la influencia de estrategias pasivas, consistentes en la instalación de diferentes tipos de acristalamientos y protecciones solares, teniendo en cuenta la orientación de la vivienda, para reducir la demanda energética de climatización. El análisis de resultados ofrece unas pautas que demuestran el comportamiento de las diferentes estrategias pasivas utilizadas y su repercusión directa en la demanda de diseño de los equipos de climatización. No siendo soluciones únicas, pero si orientativas a la hora de proponer decisiones adaptables a tipologías edificatorias similares.AbstractThe highest energy consumption in the residential sector is due to the air conditioning installations. There are numerous stud-ies of flats oriented to optimize this item, but few focus on the detached house. A critical point in this building typology are the window aperture, which suppose a great surface on the total of the envelope. Therefore, the objective of this work is to analyze, quantify and assess the influence of different passive strategies, which consists of the installation of different types of glazing and solar protections, taking into account the orientation of the house, to reduce the energy demand of air conditioning. The analysis of results provides guidelines for the behavior of different strategies and their direct impact on the design demand of refrigeration and heating equipment. They are not unique solutions, but they are indicative when proposing decisions adapt-able to similar building typologies.

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Glazing’s techno-economic performance: A comparison of window features in office buildings in different climates

Cited by 27 publications

References 35 publications

Building a Decision-Making Support Framework for Installing Solar Panels on Vertical Glazing Façades of the Building Based on the Life Cycle Assessment and Environmental Benefit Analysis

Building a Decision-Making Support Framework for Installing Solar Panels on Vertical Glazing Façades of the Building Based on the Life Cycle Assessment and Environmental Benefit Analysis

Analytical solutions to evaluate solar radiation overheating in simplified glazed rooms

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