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Transformative lighting strategies in Vancouver's urban context : using less, living betterChen, Leah Ya Li 11 1900 (has links)
We are now facing the challenge of sustainable development. This thesis focuses on
the building illumination of one downtown hospitality building, the Renaissance
Vancouver Hotel (RVH), to demonstrate three options for sustainable development of
architectural lighting.
The thesis employs architectural exterior lighting based on the technology of light
emitting diodes (LEDs) as a vehicle to demonstrate how to reduce the energy
consumption and maintenance costs of decorative lighting on building façades via
three transformative lighting strategies. These three transformative lighting strategies
demonstrate three possibilities of applying LEDs to develop architectural creativity and
energy sustainability for an outdoor decorative lighting system.
The first transformation utilizes LEDs for the retrofit of existing compact fluorescent
lights (CFLs) on the RVH’s façades and rooftop, in order to improve and diversify the
building’s illumination in a sustainable manner.
The second transformation optimizes the yearly programming of the new outdoor
decorative LED lighting in accordance with differing seasonal and temporal themes in
order to save energy, demonstrate architectural creativity via versatile lighting patterns,
and systematically manage the unstable generation of renewable energy.
The third transformation explores the potential of on-site electricity generation in an
urban context instead of its purchase from BC Hydro. Photovoltaic (PV) panels will
generate the electrical requirements of the RVH’s decorative exterior LED lighting.
This transformation will transfer daytime solar energy to electricity for night outdoor
building illumination; consequently, it can encourage outdoor activities in the nighttime
for Vancouverites, and is a means of compensating for the limited daytime hours in
Vancouver’s winter months.
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An Adaptive Control Algorithm For Maximum Power Point Tracking for Wind Energy Conversion SystemsHui, Joanne 16 December 2008 (has links)
Wind energy systems are being closely studied because of its benefits as an environmentally friendly and renewable source of energy. Because of its unpredictable availability, power management concepts are essential to extract as much power as possible from the wind when it becomes available.
The purpose of this thesis is to presents a new adaptive control algorithm for maximum power point tracking (MPPT) in wind energy systems. The proposed control algorithm allows the generator to track the optimal operation points of the wind turbine system under fluctuating wind conditions and the tracking process speeds up over time. This algorithm does not require the knowledge of intangible turbine mechanical characteristics such as its power coefficient curve, power characteristic or torque characteristic. The algorithm uses its memory feature to adapt to any given wind turbine and to infer the optimum rotor speeds for wind speeds that have not occurred before. The proposed algorithm uses a modified version of Hill Climb Search (HCS) and intelligent memory to implement its power management scheme. This algorithm is most suitable for smaller grid or battery connected wind energy systems. PSIM simulation studies have been done to confirm the effectiveness of the proposed algorithm. / Thesis (Master, Electrical & Computer Engineering) -- Queen's University, 2008-12-15 20:47:44.884
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Design-management and planning for photovoltaic cladding systems within the UK construction industry : an optimal and systematic approach to procurement and installation of building integrated photovoltaics : an agenda for the 21st centuryGyoh, Louis Ember January 1999 (has links)
No description available.
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Wind energy in the built environment : an experimental and numerical investigation of a building integrated ducted wind turbine moduleDannecker, Robert Karl Walter January 2001 (has links)
Wind is now established in Europe as a major 'renewable energy' resource, but its large scale exploitation is increasingly limited by environmental issues. Hence, on the way to a more sustainable development, it is desirable to seek ways to incorporate it into small scale embedded generation. As a first step, a prototype of a small scale Ducted Wind Turbine has been developed and tested, which seems to be feasible for integration into a conventional building. The wind flow around the building generates differential pressures which may cause an enhanced massflow through the turbine. This thesis is concerned with the investigation of the flow through building integrated duct configurations. Hence, pressure and wind speed measurements have been carried out on a wind tunnel model at different angles of incident wind. Different duct geometries with attached spoilers have been tested, and it was confirmed that wind speeds up to 30 % higher than in the approaching free stream are induced in the duct, in some cases tolerating an angle of incident wind up to 60°. The experimental work proceeded in parallel with Computational Fluid Dynamics modelling. Adaptive gridding of the complex full model geometry required a two dimensional approach, which was used to compare the predicted flow behaviour qualitatively. Three dimensional simulation of the flow field in the building integrated duct could be compared with experimental results. A new flow field mapping approach was initialised to form a two stage process in which conditions in the large-scale flow domain, modelled in a coarse three dimensional simulation, are used as boundary conditions for a localised simulation of the duct flow. Based on performance measurements of a free standing prototype in field trials and the experimentally determined wind speed in the duct, a power prediction model was developed. For the Scottish climate, the proposed device compares favorably with conventional small wind turbines and photovoltaics. The presented work evaluates the concept of harvesting wind energy in the built environment and provides outlines for the future design of a building integrated Ducted Wind Turbine module.
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Shifting the balance of power? : renewables and distributed generation in liberalised electricity systemsWoodman, Bridget January 2003 (has links)
No description available.
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The effects of geometric-wavefield interactions on the performance of oscillating water column wave energy convertorsRobinson, Robert W. January 1982 (has links)
No description available.
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Analysis of renewable energy potential in the residential sector through high resolution building energy simulationSyed, Ali Muslim. January 1900 (has links) (PDF)
Thesis (M.A.Sc.)--Dalhousie University (Canada), 2007. / Includes bibliographical references.
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From renewable to alternative waste coal and the Pennsylvania alternative energy portfolio standard /Thomas, Robert R. Glenna, Leland L., January 2008 (has links)
Thesis (M.S.)--Pennsylvania State University, 2008. / Mode of access: World Wide Web. Thesis advisor: Leland L. Glenna.
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Benefits and costs of developing renewable energy in Hong Kong /Tse, Man-sze. January 2006 (has links)
Thesis (M. Sc.)--University of Hong Kong, 2006.
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Transformative lighting strategies in Vancouver's urban context : using less, living betterChen, Leah Ya Li 11 1900 (has links)
We are now facing the challenge of sustainable development. This thesis focuses on
the building illumination of one downtown hospitality building, the Renaissance
Vancouver Hotel (RVH), to demonstrate three options for sustainable development of
architectural lighting.
The thesis employs architectural exterior lighting based on the technology of light
emitting diodes (LEDs) as a vehicle to demonstrate how to reduce the energy
consumption and maintenance costs of decorative lighting on building façades via
three transformative lighting strategies. These three transformative lighting strategies
demonstrate three possibilities of applying LEDs to develop architectural creativity and
energy sustainability for an outdoor decorative lighting system.
The first transformation utilizes LEDs for the retrofit of existing compact fluorescent
lights (CFLs) on the RVH’s façades and rooftop, in order to improve and diversify the
building’s illumination in a sustainable manner.
The second transformation optimizes the yearly programming of the new outdoor
decorative LED lighting in accordance with differing seasonal and temporal themes in
order to save energy, demonstrate architectural creativity via versatile lighting patterns,
and systematically manage the unstable generation of renewable energy.
The third transformation explores the potential of on-site electricity generation in an
urban context instead of its purchase from BC Hydro. Photovoltaic (PV) panels will
generate the electrical requirements of the RVH’s decorative exterior LED lighting.
This transformation will transfer daytime solar energy to electricity for night outdoor
building illumination; consequently, it can encourage outdoor activities in the nighttime
for Vancouverites, and is a means of compensating for the limited daytime hours in
Vancouver’s winter months. / Applied Science, Faculty of / Architecture and Landscape Architecture (SALA), School of / Graduate
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