Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 111 for “"Natural ventilation"”.
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Cooling by natural ventilation
Thesis (M.Arch.) Massachusetts Institute of Technology. Dept. of Architecture, 1950.
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Natural ventilation generates building form
Natural ventilation is an efficient design strategy for thermal comfort in hot and humid climates. The building forms can generate different pressures and temperatures to induce natural ventilation. This thesis develops a methodology that uses a computational fluid dynamics (CFD) program. The …
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Computational fluid dynamics modelling of displacement natural ventilation.
Natural ventilation is widely recognised as contributing towards low-energy building design. The requirement to reduce energy usage in new buildings has rejuvenated interest in natural ventilation. This thesis deals with computer modelling of natural displacement ventilation driven either by …
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Modeling on single-sided wind-driven natural ventilation
… a significant part of this energy being used for ventilation and cooling. Despite the large amount of energy used in buildings, reports have shown that the indoor air quality (IAQ) and thermal comfort are not satisfactory. The lowered productivity due to the bad IAQ could cause $125 billion loss …
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Natural ventilation : design for suburban houses in Thailand
Natural Ventilation is the most effective passive cooling design strategy for architecture in hot and humid climates. In Thailand, natural ventilation has been the most essential element in the vernacular architecture such as the traditional house, but has become unused nowadays because of the …
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Designing aero-acoustic wall openings for natural ventilation
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.
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Natural ventilation in buildings : modeling, control and optimization
Natural ventilation in buildings has the potential to reduce the energy consumption usually associated with mechanical cooling while maintaining thermal comfort and air quality. It is important to know how building parameters, in particular its thermal mass properties and heat loads incurred, …
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Addressing the problem with natural ventilation : producing a guide for designers to integrate natural ventilation into the early stages of building design
… is to explore substitutes to mechanical heating, ventilation, and air conditioning (HVAC) building systems. My project revisits the concept of natural ventilation and explores and evaluates its feasibility as an energy-saving and comfortable alternative to mechanical ventilation systems. …
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Feasibility study of air catcher for natural ventilation application
Ventilation is the process of supplying fresh air and removing stale air. Natural ventilation is an effective method to save energy required to condition building and to improve indoor air quality. It is widely recognized as contributing in low energy building design. In present work, five types of …
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Computer simulation of residential natural ventilation smoke control system
… research is to explore the potential benefits of natural ventilation systems in domestic dwelling applications using SMARTFIRE CFD based fire simulation software and EXODUS evacuation simulation software. Based on the objective of natural ventilation system a detailed literature review has been …
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Modeling and characterizing bi-directional airflow in natural ventilation
Bi-directional airflow in natural ventilation is an essential but not-well-understood scenario due to the complexity of airflow patterns as well as the strong coupling effect between temperature and ventilation. Neglecting bi-directional natural ventilation will result in problematic solutions and …
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Single-sided natural ventilation : design analysis and general guidelines
Natural ventilation is an effective measure to save energy consumed in buildings and to improve indoor air quality. This study focuses specifically on the principles of single-sided natural ventilation design. Single-sided ventilation is very common in building designs and has been shown to produce …
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Natural ventilation possibilities for buildings in the United States
… air conditioned, without the capability to use natural ventilation. This habit has occurred in building designs since the designers do not have the tools to understand the impact of using natural ventilation as an option in conditioning a building. Research has been conducted to create a better …
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Natural ventilation in buildings: the development of a component
… alternatives and/or supplements to power ventilation. Designers of passive solar heating/ cooling systems, for instance, often use ventilators in various ways as important components of their systems. Unfortunately, results with present types of ventilators are often less positive than …
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CFD and Deep Learning Based Natural Ventilation Analysis in Buildings
Natural ventilation is crucial for sustainable buildings and is also a promising solution for addressing indoor air quality (IAQ) issues such as those related to COVID-19. This thesis examines the efficacy of wind-driven cross-ventilation for a low-rise residential building with complex geometry …
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An experimental investigation of a solar chimney natural ventilation system
Natural ventilation driven by a solar chimney attached to a single-room building was studied experimentally using a small-scale model. The experiments were performed using a recently developed fine-bubble technique in which fine hydrogen bubbles are produced electrolytically in salt solution to …
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Study of natural ventilation in buildings with large eddy simulation
… ventilated buildings, the concept of natural ventilation has been revived. "Buildings that breathe" have become more and more desired by ordinary people and architects. Although natural ventilation is conceptually simple, it is difficult to design and control. At present, methods to …
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Modeling of opening characteristics of an atrium in natural ventilation
… and aesthetic requirements. Buoyancy-driven ventilation systems are common because they can maintain suitable thermal comfort and reduce energy. Modeling techniques used to simulate naturally ventilation include analytical models, full-scale and small-scale experiments, computational fluid …
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Optimising the airflow performance of ventilators for natural ventilation in buildings.
Ventilation is essential if an adequate environment in buildings is to be provided. Natural ventilation is a sustainable method commonly used to achieve this. Natural ventilation can occur from random flow of air through unintentional (adventitious) openings, commonly referred to as infiltration, …
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