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 22 for “"Electric lighting"”.
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Design of an electric lighting system for Camden, Indiana
Made available in DSpace on 2017-11-30T22:46:04Z (GMT). No. of bitstreams: 2 5970222.pdf: 1813979 bytes, checksum: 03472f0f249eeb9bbce175108f23b62e (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1909
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A methodology for detailed calculation of illuminance levels and light dimming factors in a room with motorized blinds integrated in an advanced window
… buildings may result in significant savings in electricity consumption for lighting while creating a higher quality indoor environment. Additional energy savings are also realised during the cooling season, when reduction of internal heat gains due to electric lighting results in a corresponding …
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Evolving with the sun
… The thickness of these thermal barriers affected lighting conditions within the structure. Sunshine was prevented from reaching the interior. Instead, the daylight was softened and diffused as it reflected and bounced along the fenestration’s thick walls. Not only was the skin used for thermal …
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Illuminating education : composition and use of lighting in public K-12 classrooms
… classroom settings. Through the measurement of lighting conditions and an examination of occupant behavior under both electric and natural lighting systems in K- 12 schools of Southern California, this research aims to bridge gaps between knowledge of light's impact on the human body and results …
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The theory & practice of modern lighting
Thesis ()--Michigan State College of Agriculture and Applied Science, 1931
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The use of visual comfort metrics in the design of daylit spaces
… can maximize passive solar heating, minimize electric lighting use and contribute to feelings of wellbeing and awareness. Unfortunately, the presence of daylight is not always a positive one. Excessive brightness, strong contrast or intense reflections from daylight can cause visual discomfort …
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Familial variation in personal PM2.5 exposure within a rural Rwandan community pre and post clean energy intervention
… biomass burning stoves, and solar-based electric lighting replaced traditional kerosene lamps. Personal PM2.5 exposures were assessed using wearable monitors that combined real-time sensing, time-integrated (gravimetric filter) sampling, and continuous location-activity tracking over …
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Comprehensive performance metrics for Complex Fenestration Systems using a relative approach
… States, nearly 40% of which is attributed to lighting. The selection of a fenestration system for a building is a critical decision as it offsets electric lighting use as well as impacts energy performance through heating and cooling systems. Further, the fenestration system contributes to …
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Relamping hotel guestrooms to decrease operating costs
… of its operating costs used for unnecessary lighting expenses. The study was conducted at the Donaldson Brown Center in Blacksburg, Virginia with 32 hotel guests participating. Data was collected to determine light fixture usage during periods of guestroom inactivity (inactive is defined as …
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Photocontrol data acquisition system for lamp life prediction in high pressure sodium lighting
… account of high intensity discharge (HID) lighting. It begins in the seventeenth century and concludes with the modem high pressure sodium (HPS) lamp, which has become the most widespread HID lighting source due to its high efficacy (Lumens/Watt) and acceptable color rendition. Following a …
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Plans and specifications for an incandescent lighting plant in Engineering Hall
Made available in DSpace on 2017-11-30T22:46:08Z (GMT). No. of bitstreams: 2 5956774.pdf: 4778630 bytes, checksum: 9db97836d872dd631ba147c1d42cc395 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1894
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Retrofit Electrochromic Glazing: A longitudinal case study of occupant experience
… saving technology through the reduction of electric lighting and air conditioning energy loads, using scale models, computer simulations and full scale test rooms. Few studies have considered the user experience of the technology, and none of the studies that have included data from human …
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Validated interactive daylighting analysis for architectural design
… as a practical, glare-free alternative to electric lighting, daylighting simulation and visual discomfort predictions must be available in real time during design. This thesis describes three innovations towards this goal: development of a parallel ray-tracing engine, validation against …
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Through a window, brightly : modulating daylight and solar radiation in commercial and institutional buildings through the use of architectural elements
Natural lighting serves several important functions in buildings. The visual power of a shaft of sunlight penetrating a dark space or the visual beauty of a stained window has long been recognized by architects and designers. The primary focus of this study is a more pragmatic one. Besides strong …
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THERMAL-LITE : a microcomputer program for thermal and daylighting analysis
… for such things as HVAC systems and artificial lighting. Furthermore, as much as 25 percent of this consumption, that is, 5 percent of the entire energy consumption in this country, has been attributed to heat gain or loss through windows. Although the thermal performance of windows has been …
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Phycoremediation of NH4+ and PO43- from meat processing wastewater by using microalgae botryococcus sp.
Phycoremediation is purposed to remove or biotransformation of pollutants including nutrients from wastewater. The excessive content of nutrients in a water body will lead to high concentration of undesirable microorganisms such as phytoplankton. This will lead to more serious problems that affects …
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An energy saving smart pedestrian lighting system with IoT
A large quantity of electricity in many countries is consumed towards lighting up the streets. Most of the basic street lighting systems are switched ON/OFF at regular intervals of time. In this thesis, a system is proposed to develop an energy saving pedestrian light control system to reduce …
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Daylighting applications of micro-textured optical surfaces
Daylighting is the use of natural light to replace artificial light. In traditional rooms sunlight will only illuminate the area closest to the window due to the high solar angle. The rear of the room appears gloomy and occupants will use electric lighting even though there is sufficient daylight …
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Smart Prismatic Louver Technology for Enhanced Daylighting and Management of Thermal Loads in Green Buildings
… redirection and solar energy harvesting. Good daylighting implementation enhances the amount of useful natural light within a space, thereby offsetting the need for electric lighting. Solar energy harvesting systems can mitigate energy costs from mechanical systems by managing incoming thermal …
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Installation of an electric light plant
Made available in DSpace on 2017-11-30T22:46:08Z (GMT). No. of bitstreams: 2 5956143.pdf: 3777210 bytes, checksum: a380d40633b29693425279498a692f95 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1893
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