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Download Free PDF. Mark DeKay. GZ Brown. A short summary of this paper. Download Download PDF. Translate PDF. Brown R. All rights reserved. All graphic icons, bundle diagrams, design strategy maps, illustrations new to the third edi- tion, sundials, sun path diagrams, Climatic Context reports, Climate Calendar spreadsheet iles, the SWL Tools spreadsheets, the full text of Part VII High-Performance Buildings, and climate data tables and maps throughout the printed and electronic components are copyright by Mark DeKay and used by permission.
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Some material included with standard print versions of this book may not be included in e-books or in print-on-demand. For more information about Wiley products, visit www. Each bundle helps build one or more larger strategies at 4 Then use eficient mechanical cooling systems for the next scale of complexity.
The core strategies of this any remaining loads. In most buildings, a few strategies will be used. A sin- FORCES gle strategy is rarely effective in all situations throughout One of the challenges for designers of passively cooled the day or in all seasons. The guidelines are general, and buildings is the selection of appropriate cooling strat- exceptions to most of them are possible. This places an upper limit on A second challenge is that cooling forces during hot outdoor temperature at which natural ventilation alone for periods tend to be weak and dispersed.
Passive cooling cooling is effective, depending on comfort criteria. Higher temperatures require the build- These two challenges mean that a combination of ing to be closed for part of the day when it is too hot passive cooling approaches must often be used, each for ventilation.
In this bundle, strategies at the ings in extreme climates. Typically, There are ive strategies that are considered invari- neither of the ground-based strategies will provide for the ants in all passively cooled buildings.
While one of entire cooling load. In most will beneit from each of these ive strategies, whether the cooling climates, temperatures during the summer after- climate is arid or humid.
They may often work well, but winds tend to be most calm at night. Designers can ask, What spaces such as circulation almost all passively cooled buildings. This strategy directs or morning meeting can happen in unconditioned out- the designer to consider the sectional quality of the build- door spaces?
This strategy directs the designer to consider ing to enhance this gravity-driven ventilation system. In the combination of wind and sun directions when locat- a room cooled by stack-ventilation, warm air rises, exits ing outdoor rooms. For example, in a hot climate, when through openings at the top of the room, and is replaced the summer sun and wind come from the same direction, by cooler air entering low in the room. Solar heat gain on the swings and can be located between the more protected roof is greatest in the middle of the day, when the sun is rooms and undesired heat sources, often the eastern or overhead in summer.
In most hot climates, the sun is high western sun, or the roof. These spaces can be used as enough in the sky for much of the day that a horizon- thermal buffer zones between the more extreme outside tal structure of overhead elements is effective at shading conditions and spaces that need somewhat more careful outdoor spaces, roofs, or entire buildings except in the temperature control.
This strategy directs strategy. If these spaces are in the same This bundle may be varied by the climatic context of arid- zone they can employ the same energy eficient design ity or humidity. It is like throwing money away not to employ The hot-humid bundle focuses on reducing it.
In a signiicant number of climates, the wind is calm solar gain and maximizing ventilation across all scales. Hot-Humid Situational Strategies In addition to the ive core strategies applicable to all buildings, this bundle variation adds these situational strategies that will apply to most buildings in hot-humid climates: PERMEABLE BUILDINGS : Because humid climates depend so greatly on ventilation for cooling, it is critical to pro- mote both cross- and stack-ventilation by making plans and sections open as a pathway for air.
High-Performance Buildings. It is organized into two volumes: SWL Printed Volume pages Multiple aids for navigation of the knowledge base A new knowledge structure for net-zero design 7 synergies and 9 strategy bundles 6 high-performance building assessment methods Condensed versions of favorite design strategies and tools SWL Electronic Volume pages, download from Wiley Searchable PDF e-book Over detailed preliminary design strategies 29 design analysis techniques SWL Digital Extras free downloads The SWL Tools spreadsheet workbook for net-zero design Climate Calendars data spreadsheets for 28 US cities pages of Climate Context reports for US climate regions.
Front Matter I. Navigation II. Synergies IV. Bundles V.
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