Modeling a triple-glazed supply-air window

Gloriant, Francois; Tittelein, Pierre; Joulin, Annabelle; Lassue, Stéphane

doi:10.1016/j.buildenv.2014.10.017

Cited by 26 publications

(16 citation statements)

References 23 publications

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“…I is the solar radiation power, which means the heat received per square meter per second when the exterior windows of the building are perpendicular to the light. SC is the shading coefficient and its value is related to the shading device [27]. Equation (5) shows that the indoor temperature can be regulated by adjusting the output cold/heat power of the AC can change.…”

Section: Acves Modelmentioning

confidence: 99%

Optimal Scheduling Strategy of Building Integrated Photovoltaic Microgrid Considering Virtual Energy Storage

Zeng

et al. 2020

Applied Sciences

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Building integrated photovoltaic (BIPV) is one of the most efficient ways to utilize renewable energy in buildings. However, the stochastic characteristic of PV power generation and load challenges the optimal dispatch of the BIPV. This paper proposes an optimal scheduling strategy of BIPV microgrid considering virtual energy storage (VES), which intends to further improve the operating economy of a BIPV microgrid. Firstly, existing research findings and gaps in this research area were analyzed. Then, the mathematical model of each unit in the system was created, meanwhile, the air conditioner-based VES (ACVES) model and electric water heater-based VES (EWHVES) model are built by exploiting the heat/cold storage capability of building and the electric water heater, respectively. Next, the optimal scheduling model considering the VES is designed. Finally, the optimal scheduling model is solved by CPLEX to obtain the optimal scheduling strategy that reduces the operating cost of the system. Simulation results demonstrate that the proposed strategy can reduce the operating cost of the system. Furthermore, the VES shows the potential to replace the battery energy storage system.

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Section: Acves Modelmentioning

confidence: 99%

Optimal Scheduling Strategy of Building Integrated Photovoltaic Microgrid Considering Virtual Energy Storage

Zeng

et al. 2020

Applied Sciences

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“…Windows represent essential elements of buildings' envelope. Given their higher thermal transmittance, improving their thermal behavior has been a persistent subject of interest [1]. Different approaches to energy-efficient glazing systems are still debated among scientists [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…The standard k-ε or the RNG k-ε turbulence model has been widely implemented for CFD simulations of ventilated windows; • A large number of CFD investigations focused on DSF, whereas few addressed supply air windows [1,8,9,12,14,34,35];…”

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confidence: 99%

“…The majority of studies did not consider indoor or outdoor conditions. In some cases [1,9,14,47,48,51], heat transfer coefficients for indoor and outdoor surfaces were considered. In one case, the radiative temperature on the glazing surfaces was considered [1].…”

mentioning

confidence: 99%

“…Conductive heat transfer within the glazing layers; • Convection and long-wave radiation between the inner glass and the inside environment, between the outer glass and outdoor conditions, and also within the glazing panes; • Convective heat transfer among the glazing panes caused by airflow (unknown convective coefficients in the windows interstitial cavity makes the modeling challenging); • Absorbed solar radiation by the glass panes [1]. Given the complexity of the physical processes involved, a candidate simulation model should ideally incorporate complete three-dimensional processes, suitable turbulence models, solar radiation influences, realistic boundary conditions, and temperature-dependent material properties [14].…”

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confidence: 99%

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A CFD-Based Parametric Thermal Performance Analysis of Supply Air Ventilated Windows

Khosravi

Mahdavi

2021

Energies

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Ventilated windows have the potential to contribute to both indoor air quality and energy efficiency in cold climates. A typical ventilated window functions as a solar collector under inward air flow direction and incident solar radiation. The ventilated window is a modification of the multiple pane windows in which air is drawn in from outside and is heated through conduction, convection, and radiation in the cavity. In this study, a detailed parametric analysis was conducted to investigate the thermal performance of ventilated windows and their capacity to preheat ventilation air. High-resolution 3D steady RANS computational fluid dynamic (CFD) simulations were performed for six ventilated window geometries. Model results were compared with measurements. The following geometric characteristics were evaluated in detail: (i) The height of the window, (ii) the width of the cavity, (iii) the location of double-layered glazing, and (iv) the width of the supply air opening. The results suggested that taller cavities and a smaller cavity depth can provide higher incoming air temperature. Windows with inner double-layered glazing and a smaller width of supply air opening displayed a better thermal performance.

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2018

Building Performance Analysis

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Modeling a triple-glazed supply-air window

Cited by 26 publications

References 23 publications

Optimal Scheduling Strategy of Building Integrated Photovoltaic Microgrid Considering Virtual Energy Storage

Optimal Scheduling Strategy of Building Integrated Photovoltaic Microgrid Considering Virtual Energy Storage

A CFD-Based Parametric Thermal Performance Analysis of Supply Air Ventilated Windows

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