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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 14 of 14 for “"Building Ventilation"”.
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Performance investigation of a naturally driven building ventilation terminal.
Naturally driven ventilation terminals (wind vents) offer a way of improving comfort conditions while reducing building carbon emissions. The device sits on top of the building, trapping the air at higher velocity and delivering it into the interior of the building. The current cross-ventilated …
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An Assessment of Indoor Air Quality at Two Contrasting Location and Building Ventilation Types in London
… People spend most of their time indoors, in buildings such as schools and offices, as well as their homes. Recent interest in Indoor Air Quality (IAQ) suggests that the contribution of outdoor pollutants and indoor airborne particulate and gaseous pollutants may be responsible for the …
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Characterization and Concentration of Particulate Matters Emitted From Confinement Animal Buildings
… caused from the different levels of animal building ventilation.
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Numerical study of the thermal performance of solar chimneys for ventilation in buildings
Building ventilation is crucial for improving the indoor air quality and thermal comfort. Nowadays, mechanical ventilation systems such as air conditioning and fans are most commonly used in buildings. However, these devices consume a lot of electricity which is mainly generated from the combustion …
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Behavior, welfare, production and bioenergetics of laying hens in alternative housing systems
… in an aviary system (Chapter 5); and 5) Quantify building ventilation rate (VR) and laying-hen bioenergetics in a fully-open aviary house (Chapter 6).</p> <p>The research described in this dissertation contain the following discoveries: The UHF RFID system was successfully developed and validated. …
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Use of performance-monitoring to improve reliability of emergency diesel generators
… of service water pumps, the failure of EDG building ventilation dampers, and the failure of the EDG "supercomponent," which includes the fuel oil, lubricating oil, cooling water, and starting air systems. We use data from the nuclear industry and the U.S. Navy to identify the most …
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A Method for Evaluating the Application of Variable Frequency Drives with Coal Mine Ventilation Fans
… of controlling airflow for primary coal mine ventilation. With this method, the fan operates at a constant speed dictated by its motor design. The angles of the blades are adjusted to change the amount of airflow and pressure to meet ventilation requirements. Typically, the fan does not …
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Assessment of the effect of mean and fluctuating wind-induced pressures on air infiltration and ventilation in buildings : a system theoretic approach
… extensive research on air infiltration and ventilation in buildings. Airflow models have been developed to study the problem and to assist in the building design process. Existing research concentrates on measurements, modelling and predictions of steady-state airflow caused by wind-induced …
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The flow of rivers into lakes: Experiments and models
… and a variety of buoyancy driven flows, from building ventilation to ocean circulation.
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Modelling of disturbed flow regimes in aspirated pipe systems
… External air flows typically caused by building ventilation and described as crosswind, cause a reduction in the hole flow rate in a phenomenon described as Infraflow. By superposition, these phenomena determine the net flow rate of each hole and therefore the flow rate in each pipe …
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Natural Ventilation of Buildings: From Fluid Mechanics to Architectural Design Guidance
Over the last two decades, natural ventilation of buildings has rapidly established itself as a viable low-energy alternative to air-conditioning and mechanical ventilation systems. With careful design, natural ventilation has the capacity to reduce the energy expenditure of buildings and can …
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Quality assurance project plan for a ruminant emission measurement system
… six orifice meters for measuring and controlling ventilation rates; six individual chambers, in each of which the head of one animal is placed during monitoring; a Heating, Ventilating and Cooling (HVAC) system for maintaining comfortable temperature and humidity inside the chambers; the gas …
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Hybrid Ventilation Flows
Hybrid ventilation is likely to become an increasingly important element of low-energy building design, as it is often perceived to embody both the energy efficiency of natural ventilation, and the control and reliability of mechanical ventilation. However, at the outset of this work there was …