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Title: Optimization of Window Positions for Wind-Driven Natural Ventilation Performance

Journal Article · · Energies (Basel)
DOI: https://doi.org/10.3390/en13102464 · OSTI ID:1630621
ORCiD logo [1];  [1];  [2];  [3];  [2]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Harvard Univ., Cambridge, MA (United States)
  3. Tennessee State Univ., Nashville, TN (United States)
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This paper optimizes opening positions on building facades to maximize the natural ventilation’s potential for ventilation and cooling purposes. The paper demonstrates how to apply computational fluid dynamics (CFD) simulation results to architectural design processes, and how the CFD-driven decisions impact ventilation and cooling: (1) background: A CFD helps predict the natural ventilation’s potential, the integration of CFD results into design decision-making has not been actively practiced; (2) methods: Pressure data on building facades were obtained from CFD simulations and mapped into the 3D modeling environment, which were then used to identify optimal positions of two openings of a zone. The effect of the selected opening positions was validated with building energy simulations; (3) results: The cross-comparison study of different window positions based on different geographical locations quantified the impact on natural ventilation effectiveness; and (4) conclusions: The optimized window position was shown to be effective, and some optimal solutions contradicted the typical cross-ventilation strategy.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1630621
Journal Information:
Energies (Basel), Vol. 13, Issue 10; ISSN 1996-1073
Publisher:
MDPI AGCopyright Statement
Country of Publication:
United States
Language:
English

References (17)

Influence of window opening degree on natural ventilation performance of residential buildings in Hong Kong journal October 2019
Determination of Optimum Window to External Wall Ratio for Offices in a Hot and Humid Climate journal February 2016
On-site assessment of the discharge coefficient of open windows journal August 2016
Parametric analysis on the heat transfer, daylight and thermal comfort for a sustainable roof window with triple glazing and external shutter journal January 2019
Balancing of natural ventilation, daylight, thermal effect for a building with double-skin perforated facade (DSPF) journal March 2020
Window-opening behavior in Chinese residential buildings across different climate zones journal September 2018
Passive performance and building form: An optimization framework for early-stage design support journal February 2016
Cooling energy reduction effect of parallel double-window system operation in residential buildings in South Korea journal May 2017
Painting with light: An interactive evolutionary system for daylighting design journal November 2016
Multi-objective optimisation framework for designing office windows: quality of view, daylight and energy efficiency journal March 2020
Architectural window design and energy efficiency: Impacts on heating, cooling and lighting needs in Finnish climates journal January 2020
Optimization of window-openings design for thermal comfort in naturally ventilated buildings journal January 2012
Feasibility Study on Parametric Optimization of Daylighting in Building Shading Design journal November 2016
CFD analysis of forced convective heat transfer coefficients at windward building facades: Influence of building geometry journal November 2015
Evaluation of Discharge Coefficients for Window Openings in Wind Driven Natural Ventilation journal June 2006
Facade design optimization for naturally ventilated residential buildings in Singapore journal August 2007
The effect of window opening ventilation control on residential building energy consumption journal December 2016

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32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
natural ventilation
window positions
optimization
early-design phase
building simulation
CFD