Single-Zone Stack-Dominated Infiltration Modeling

Sherman, Max H.

doi:10.1111/j.1600-0668.1992.00006.x

Cited by 6 publications

(4 citation statements)

References 6 publications

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“…In high-rise buildings, significant density differences arise from temperature variations between indoor and outdoor environments, which causes the stack pressure difference that drives the outdoor airflow into the building through openings on the lower floors. Therefore, the stack pressure difference is a function of the building height and temperature difference, and the magnitude of the stack effect increases with increasing height and temperature difference, as shown in Equation ( 2) [20].…”

Section: Driving Forcesmentioning

confidence: 99%

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Field Study on Impact of Mechanical Pressurization on Pressure Distribution in High-Rise Buildings

Ji,

Choi,

2023

Buildings

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In high-rise buildings, the excessive pressure differences cause various problems, and architectural and mechanical measures are always applied. In this study, pressure measurements on a 67-story high-rise building were conducted to evaluate the effect of mechanical pressurization on the pressure distribution. Absolute pressure measurement devices were installed at 28 points on 10 floors, a full-scale pressure profile of the test building was derived, and the pressure distributions on the main floors were reviewed. Four pressurization modes for the test building were considered, and the variation in the pressure distribution for each mode was analyzed. The results showed that mechanical pressurization reduced the pressure difference on the lobby floor by approximately 18%. Although it did not exert an apparent impact on the pressure difference due to the stack effect, pressurizing the entire floor serves as the most effective way of reducing the excessive pressure difference.

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Section: Driving Forcesmentioning

confidence: 99%

“…The wind pressure is another driving force causing pressure differences in buildings, as shown in Equation ( 3) [20]. The positive pressure difference typically occurs on the windward side of a building, allowing air to flow into the building through openings and gaps.…”

Section: Wind Pressure (∆P W )mentioning

confidence: 99%

Field Study on Impact of Mechanical Pressurization on Pressure Distribution in High-Rise Buildings

Ji,

Choi,

2023

Buildings

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“…Despite its simplicity, it is robust and incorporates most of the applicable physics. Later, Sherman (1998) developed a single-zone stack-dominated infiltration model. The most interesting of this study is the introduction of a parameter called "stack height", which…”

Section: Mono-zone Models (One-zone Nodal Ormentioning

confidence: 99%

The Use of Different Levels of Multi-Room Modeling Approach-Application to Building Pollution Transport and Efficiency of Off-Hour Ventilation

Megri¹

2014

American Journal of Engineering and Applied Sciences

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Several building simulation programs have been developed for design, analysis and prediction of the distribution of temperature, airflow and heat transfer between inside and outside of a building and/or between different zones of the same building. These programs are categorized as mono-zone models, multi-room models, zonal models, Computational Fluid Dynamics (CFD) models and multi-zone models. The number of computer programs continues to increase, each reflecting different objectives and concerns. Some of these computer programs are dedicated to research and others to design and auditing. However, none of the existing computer programs is able to translate automatically various steps of the design process as actually performed by design Architectural Engineering firms. This study addresses different levels of multi-room simulation programs developed through the last four decades. Two case studies using multi-room programs have been exposed to illustrate the appropriate use of various levels of this approach for design and analysis.

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“…Although temperature stratification occurred in each room, the average vertical distribution of temperature was more appropriate to use compared to localized temperatures at the opening of interest for exfiltration and infiltration . Each room was modeled as having no internal separations and average carcass temperature was used as the average room temperature, meaning each DR was modeled as a single equivalent space for the stack effect Sherman, 1992a).…”

Section: Air Exchangementioning

confidence: 99%

Development and assessment of unconventional mortality management for swine

Weyer¹

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Specialized animal environment experiments needing swine facilities calls for novel technology creation to enable unique experimentation without the drawbacks of traditional swine facilities. In a full-scale swine facility, there are challenges with cost, increased travel time to sites, additional labor is required, the facility cannot be fully controlled, and biosecurity becomes a risk. A small-scale, mobile swine confinement laboratory was designed and built to mitigate the challenges faced in a full-scale barn. The mobility of the laboratory enables it to travel to swine farms to obtain fresh animal specimens, which allows the experiments and data collected to be more representative of an in-barn application. The model facility, built on a flat-bed trailer, has two identical, fully instrumented rooms (L × W × H) of 2.24 × 2.29 × 2.05 m (88.0 × 90.0 × 80.5 in.) with a 0.46 m (18 in.) shallow pit, replicating typical swine finishing rooms. Walls were composed of typical wood-frame construction with interior paneling and metal clad on the exterior. Instrumentation allows the environment and air quality of the rooms, along with other parameters, to be controlled and monitored. The rear portion of the trailer includes an instrumentation room to house necessary computers, controllers, and associated equipment.Commissioning of components and verifying function of equipment were performed, which included quantifying infiltration and performing a thermal analysis for each room. Analysis showed that the infiltration equation was distinct for each room. The use of this laboratory for 39 qualitative and quantitative evaluation of in-barn experimentation on a controlled, small-scale will mitigate the challenges presented in a typical barn.

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Single-Zone Stack-Dominated Infiltration Modeling

Cited by 6 publications

References 6 publications

Field Study on Impact of Mechanical Pressurization on Pressure Distribution in High-Rise Buildings

Field Study on Impact of Mechanical Pressurization on Pressure Distribution in High-Rise Buildings

The Use of Different Levels of Multi-Room Modeling Approach-Application to Building Pollution Transport and Efficiency of Off-Hour Ventilation

Development and assessment of unconventional mortality management for swine

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