Application of Stack Ventilation in Buildings

2011 ◽  
Vol 71-78 ◽  
pp. 5103-5107
Author(s):  
Tong Sheng Xin ◽  
Jian Jun Liu
Keyword(s):  
Architectural Design ◽  
Natural Ventilation ◽  
Construction Engineering ◽  
Stack Ventilation

Stack ventilation represents a natural ventilation solution commonly employed in construction engineering. The paper discusses with abundant examples the working theory, conditions, methodology and architectural design of stack ventilation.

Cross Method and Design Process for DSF Elements

2017 ◽  
Vol 42 (4) ◽  
pp. 36-43 ◽  
Author(s):  
Sertaç Ilter ◽  
S.Müjdem Vural
Keyword(s):  
Architectural Design ◽  
Natural Ventilation ◽  
Evaluation Method ◽  
Building Envelope ◽  
Design Stage ◽  
Design System ◽  
Human Comfort ◽  
Early Design Stage ◽  
Preliminary Design Stage ◽  
Contemporary Architecture

The double-skin façade (DSF) is one of the most crucial paradigms of building envelope design in last decades. DSF prospects a unified architectural phenomenon based on comfort rank of building driven by the dogmas of aesthetic-glass façade and practical-natural ventilation aspirations. Therefore, the utilization of DSF has been the most prevalent catalyst for architectural design. The study discusses to structure a valid evaluation method focusing on DSF elements in order to fragment human comfort standards within asserting an accurate system in the preliminary design stage. The study significantly examines the tools/ways of integrating DSFs' human comfort parameters in contemporary architecture though a convincing design system. Apparently, the study aims to provide a proposed guideline within a established analyzing system for architects in order to better formation of DSF elements; which refers and promote the human comfort standards. The results demonstrate a modest insight on understanding the potentials of DSF elements in the early design stage significantly following defined architectural conceptions; cooling, lighting, thermal, acoustic and visual comfort intensity. Based on obtained data; study aims to enclose a diminutive knowledge or demonstration of how the concept might work for future development of contemporary architecture within DSF area.

Three Dimensional Simulation of Ventilation Flow Through a Solar Windcatcher

2019 ◽  
Author(s):  
Peter Abdo ◽  
Rahil Taghipour ◽  
B. P. Huynh
Keyword(s):  
Natural Ventilation ◽  
Air Flow ◽  
Ventilation System ◽  
Three Dimensional ◽  
Windward Side ◽  
Efficient Design ◽  
Indoor Space ◽  
Wind Speeds ◽  
Air Stream ◽  
Stack Ventilation

Abstract Natural ventilation is the process of supplying and removing air through an indoor space by natural means. There are two types of natural ventilation occurring in buildings: winddriven ventilation and buoyancy driven or stack ventilation. The most efficient design for natural ventilation in buildings should implement both types of natural ventilation. Stack ventilation which is temperature induced is driven by buoyancy making it less dependent on wind and its direction. Heat emitted causes a temperature difference between two adjoining volumes of air, the warmer air will have lower density and be more buoyant thus will rise above the cold air creating an upward air stream. Combining the wind driven and the buoyancy driven ventilation will be investigated in this study through the use of a windcatcher natural ventilation system. Stack driven air rises as it leaves the windcatcher and it is replaced with fresh air from outside as it enters through the positively pressured windward side. To achieve this, CFD (computational fluid dynamics) tool is used to simulate the air flow in a three dimensional room fitted with a windcatcher based on the winddriven ventilation alone, buoyancy driven ventilation alone, and combined buoyancy and winddriven ventilation. Different wind speeds between 0 up to 2.5 m/s are applied and the total air flow rate through the windcatcher is investigated with and without temperature of 350 K applied at the windcatcher’s outlet wall. As the wind speed increased the efficiency of the solar windcatcher decreased.

Application and Implementation of Ecological Design for Single Building

2012 ◽  
Vol 446-449 ◽  
pp. 2309-2312
Author(s):  
Zhong Hua Ye
Keyword(s):  
Sustainable Development ◽  
Architectural Design ◽  
Natural Ventilation ◽  
Ecological Environment ◽  
Ecological Design ◽  
Natural Light ◽  
Simple Method

Architectural ecological design is not merely a simple method of architectural design, but a technique and measure of protecting the ecological environment, developing ecological economy and culture, emphasizing sustainable development. Based on the measures of ecological design of function, organization, layout, utilization of natural light, and implementation of natural ventilation, reducing of noise of single building, the application and implementation of ecological design for single building are analyzed, which provides a reference for other projects.

Analysis and Research of Wind Environment of Energy Saving Buildings

2011 ◽  
Vol 243-249 ◽  
pp. 6246-6254
Author(s):  
Qian Feng
Keyword(s):  
Energy Efficiency ◽  
Architectural Design ◽  
Natural Ventilation ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Environment Design ◽  
Wind Environment ◽  
Indoor Space ◽  
Traditional Research ◽  
Tongji University

Building Energy Efficiency is one of the most important goals for green architectural design. Natural ventilation is a building energy efficiency technique adapting to the environment. Compared with air conditioning, natural ventilation can reduce the energy consumption and bring new air to indoor space. However, air environment, as an important aspect of building optimal design, can be ignored easily in traditional research, the quantitative analysis aiming at the energy efficiency of natural ventilation is less. In this paper, we use Fluent Air-pak software and Wenyuan Building of TongJi University as an example, to analyze the air flow field of indoor natural ventilation and provide the method and theory of air-environment design.

scholarly journals Improvement of the Chimney Effect in Stack Ventilation

2021 ◽  
Vol 11 (19) ◽  
pp. 9185
Author(s):  
Romana Antczak-Jarząbska ◽  
Krzysztof Pawłowski ◽  
Maciej Niedostatkiewicz
Keyword(s):  
Natural Ventilation ◽  
Ventilation System ◽  
Common Denominator ◽  
Air Inlet ◽  
Transparent Barrier ◽  
Scale Experiment ◽  
Stack Ventilation ◽  
Chimney Effect ◽  
Rotary Type ◽  
Made In

The article is focused on the airflow in a ventilation system in a building. The work examines the methods which enhance the chimney effect. In this paper, three cases with different chimneys were analyzed for the full-scale experiment. These cases were characterized by different geometrical and material parameters, leading to differences in the intensity of the ventilation airflow. The common denominator of the cases was the room with the air inlet and outlet to the ventilation system. The differences between the experimental cases concerned the chimney canal itself, and more precisely its part protruding above the roof slope. The first experimental case concerned a ventilation canal made in a traditional way, from solid ceramic brick. The second experimental case concerned the part that led out above the roof slope with a transparent barrier, called a solar chimney. In the third experimental case, a rotary type of chimney cap was installed on the chimney to improve the efficiency of stack ventilation. All these cases were used to determine the performance of natural ventilation—Air Change per Hour (CH). Additionally, the paper presents a technical and economic comparison of the solutions used.

scholarly journals Functionality analysis and natural ventilation of social housing in times of pandemic

2021 ◽  
Vol 10 (12) ◽  
pp. e45101220114
Author(s):  
Kátia Jocasta Ortiz Grings ◽  
Valéria Costa de Oliveira ◽  
Francisco Roger Carneiro Ribeiro ◽  
Jayson Pereira Godinho
Keyword(s):  
Low Income ◽  
Social Housing ◽  
Architectural Design ◽  
Natural Ventilation ◽  
Technical Specification ◽  
Performance Standards ◽  
Well Being ◽  
Remote Work ◽  
Single Family ◽  
Window Frames

In the context of the COVID-19 pandemic, inadequate spaces in terms of the dimensions of the environments and lack of flexibility for possible adjustments, not only accentuate health risks, but also interfere in the productivity of remote work and school performance. In this sense, social housing has an unsatisfactory performance in terms of functionality, mainly because they have small spaces and inadequate window frames to achieve satisfactory natural ventilation and reduce the contagion by coronavirus. The objective of this article is to analyze three single-family social housings, aiming to rethink spaces, focusing on some elements necessary to protect the health and well-being of the inhabitants. The method applied concepts of functionality and useful area, in addition to the requirements and criteria of the Brazilian bioclimatic zoning and performance standards, including the construction guidelines for single-family social housings (SH) reflecting on the need to adapt SH to guarantee well-being and inhabitants' health. Analysis results showed that low-income buildings are precarious in terms of functionality and do not allow adaptations due to the architectural design and technical specification of walls and window frames.

scholarly journals DESEMPENHO TÉRMICO DE UMA EDIFICAÇÃO UNIFAMILIAR NATURALMENTE VENTILADA PARA O CLIMA DE TEÓFILO OTONI-MG

2017 ◽  
Vol 13 (2) ◽  
Author(s):  
Camila Cordeiro de Oliveira ◽  
Nayara Rodrigues Marques Sakiyama ◽  
Layane Ventura de Miranda
Keyword(s):  
Energy Efficient ◽  
Architectural Design ◽  
Natural Ventilation ◽  
Climate Data ◽  
Single Family ◽  
Humid Climate ◽  
Thermal Discomfort ◽  
The Hours ◽  
Efficient Construction ◽  
The City

RESUMO: Nos últimos anos, em virtude das preocupações com a eficiência energética das edificações, a adequação da arquitetura ao clima ganhou maior importância. Sendo que, uma das formas de tornar uma construção eficiente energeticamente, é através da utilização de estratégias de condicionamento passivo, destacando-se a ventilação natural para o clima quente e úmido. Neste contexto, o presente trabalho apresenta a simulação computacional de uma edificação unifamiliar, naturalmente ventilada, realizada por meio do plug-in Archsim, para a cidade de Teófilo Otoni – MG, utilizando-se, para tanto, os dados climáticos do TRY (Test Reference Year). As alternativas adotadas nas simulações consistiram em variar a disposição e a área de ventilação das aberturas, verificando a influência destes parâmetros no desempenho térmico da edificação. De acordo com os resultados obtidos na simulação pode-se dizer que a melhor orientação para as aberturas é na direção leste-sul com área de abertura para ventilação natural de 20% da área do piso. Para esta composição a porcentagem de horas de conforto para a edificação é de 57,5% e o desconforto térmico anual é de 42,5% das horas. A principal contribuição deste artigo consiste na análise da utilização da ventilação natural em edificações de pequeno porte e seu impacto no conforto térmico do usuário, apresentando ainda a importância da utilização de simulações computacionais como ferramenta de auxilio no projeto arquitetônico.
 
 ABSTRACT: Concerns related to energy efficiency in buildings in recent years, induced the increase of architectural adaptation to climate. The use of passive conditioning strategies, emphasizing natural ventilation for hot and humid climate is one way to have an energy-efficient construction. In this context, this paper presents a computer simulation of a single family building, naturally ventilated, held by the plug-in Archsim to the city of Teófilo Otoni - MG, using the climate data TRY (Test Reference Year). The alternative adopted in the simulations consisted in varying the layout and area of ventilation openings, checking the influence of these parameters on the thermal performance of the building. According to the results obtained in the simulation, the best orientation for the openings is in the south-east direction with opening area for natural ventilation of 20% of the floor area. For this composition the building comfort hours’ percentage is 57.5% and the annual thermal discomfort is 42.5% of the hours. The main contribution of this paper is the analysis of the use of natural ventilation in small buildings and its impact on the thermal comfort of the user, showing the importance of using computer simulations as an aid tool in architectural design.

scholarly journals Sustainable futures in the context of architectural design of hospitals

2020 ◽  
Vol 166 ◽  
pp. 08001
Author(s):  
Irina Bulakh ◽  
Margaryta Didichenko ◽  
Olena Kozakova ◽  
Olena Chala
Keyword(s):  
Health Care ◽  
Sustainable Development ◽  
Energy Efficient ◽  
Architectural Design ◽  
Natural Ventilation ◽  
International Experience ◽  
Solar Panels ◽  
Spatial Form ◽  
The World ◽  
Sustainable Futures

The problems of necessity of sustainable and ecological approaches in architectural design of hospitals are raised in the research. The best international experience of designing and operating hospitals designed on the principles of sustainable development is considered. Examples and implementation examples of healthcare institutions integrating energy efficient technologies are analyzed and illustrated: natural ventilation, solar panels, rainwater collection, filtration and reuse of wastewater, greening of the roof and walls, sun protection, aerodynamic volumetric and spatial form. Studying and using the proven experience of the best examples of ecological hospital buildings, recognized and certified at the highest levels of the world institutions for the development of a sustainable future, will allow Ukraine to create the conditions for solving the crisis both in the sphere of health care and in the ecologically preserved environment of the country.

scholarly journals Optimization of Window Positions for Wind-Driven Natural Ventilation Performance

Energies ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2464
Author(s):  
Nari Yoon ◽  
Mary Ann Piette ◽  
Jung Min Han ◽  
Wentao Wu ◽  
Ali Malkawi
Keyword(s):  
Architectural Design ◽  
Natural Ventilation ◽  
Cfd Simulation ◽  
Design Decision ◽  
Building Facades ◽  
Window Position ◽  
Computational Fluid Dynamics Cfd ◽  
Ventilation Performance ◽  
Energy Simulations ◽  
The Impact

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.

Yunan Typical Courtyard Type Wind Environmental Analysis - Zhu Zigui Courtyard, for Example

2014 ◽  
Vol 641-642 ◽  
pp. 1117-1120
Author(s):  
Yan Shi ◽  
Ying Fan
Keyword(s):  
Energy Efficient ◽  
Architectural Design ◽  
Natural Ventilation ◽  
Ventilation Mode ◽  
Cold Winter ◽  
Residential Areas ◽  
Wind Environment ◽  
Winter Climate ◽  
Reducing Energy

Use natural ventilation in buildings is one of the most important energy-saving means of reducing energy consumption. Natural ventilation is use of pressure or heat to achieve natural ventilation effect, has the advantages of energy-efficient, clean, and is a relatively healthy ventilation mode. This study on wind environment in residential areas of Henan base, exploring hot-summer and cold-winter climate on buildings build the role of development, climate influence architectural design concept.

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