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- Genre: Masters Thesis
- Genre: Poetry
- Creators: Tamizhmani, Govindasamy
- Member of: Theses and Dissertations
- Resource Type: Text
Description
Chris Miller's Souvenirs of Sleep is as serious as it is whimsical, if this is a possibility. The "Museum of the Zoo-real" may be an equally appropriate title as animals are often in performance. In this visual and spiritual investigation, childhood, dream, and the loss of a mother to suicide are the currents. Miller's work is informed by the cinema of Werner Herzog, Andrei Tarkovsky, Robert Bresson and beyond. Miller believes in the power of implication. The poems begin with intense focus, but are often in the business of expansion. Souvenirs of Sleep is a journey toward sense-making, a search for language that might allow it.
ContributorsMiller, Christopher (Author) / Dubie, Norman (Thesis advisor) / Hogue, Cynthia (Committee member) / Ball, Sally (Committee member) / Arizona State University (Publisher)
Created2013
Description
A collection of poems that explore what it means to be from the Atomic City-- a city built atop cleared-out rural communities in East Tennessee during World War II, and with the sole and secretive purpose of enriching uranium for the atomic bomb. The poems look back to the more isolated Appalachian culture of previous generations, discovering the identity rifts caused by such massive and rushed development. In trying to understand the poet's own cultural inheritance of both nuclear weaponry and an Appalachian hardness, the poems begin to meditate on inhabitation. They ask what it means to live in a country, a local community, a body. The poems travel far beyond the Atomic City's limits, incorporating characters that live, in some sense, at the edge of a community. As he crosses the Atlantic, the Spanish poet Jiménez wonders if either sound or vision are more trustworthy tools for perception; an aging grandmother in Tennessee realizes that she still "drives" her younger body in her dreams; an American woman becomes aroused after touring the killing fields in Cambodia; and the prophet of Oak Ridge, who supposedly predicted the Manhattan Project, considers how his baby daughter has become a thing after death. The various voices show the poet grappling with her own guilt over Hiroshima, and ultimately attempt to understand the limits of both grief and love, how one inherits a tragedy.
ContributorsSams, Sara (Author) / Hogue, Cynthia (Thesis advisor) / Ball, Sally (Committee member) / Dubie, Norman (Committee member) / Arizona State University (Publisher)
Created2013
Description
Ranging in subject from a Tuareg festival outside Timbuktu to the 1975 "Battle of the Sexes" race at Belmont track to a Mississippi classroom in the Delta flood plains, the poems in The Body Snatcher's Complaint explore the blurring of self hood, a feeling of foreignness within one's own physical experience of the world, in the most intimate and global contexts.
ContributorsMurray, Catherine (Author) / Hogue, Cynthia (Thesis advisor) / Ball, Sally (Committee member) / Hummer, Terry (Committee member) / Arizona State University (Publisher)
Created2013
Description
Photovoltaic (PV) module nameplates typically provide the module's electrical characteristics at standard test conditions (STC). The STC conditions are: irradiance of 1000 W/m2, cell temperature of 25oC and sunlight spectrum at air mass 1.5. However, modules in the field experience a wide range of environmental conditions which affect their electrical characteristics and render the nameplate data insufficient in determining a module's overall, actual field performance. To make sound technical and financial decisions, designers and investors need additional performance data to determine the energy produced by modules operating under various field conditions. The angle of incidence (AOI) of sunlight on PV modules is one of the major parameters which dictate the amount of light reaching the solar cells. The experiment was carried out at the Arizona State University- Photovoltaic Reliability Laboratory (ASU-PRL). The data obtained was processed in accordance with the IEC 61853-2 model to obtain relative optical response of the modules (response which does not include the cosine effect). The results were then compared with theoretical models for air-glass interface and also with the empirical model developed by Sandia National Laboratories. The results showed that all modules with glass as the superstrate had identical optical response and were in agreement with both the IEC 61853-2 model and other theoretical and empirical models. The performance degradation of module over years of exposure in the field is dependent upon factors such as environmental conditions, system configuration, etc. Analyzing the degradation of power and other related performance parameters over time will provide vital information regarding possible degradation rates and mechanisms of the modules. An extensive study was conducted by previous ASU-PRL students on approximately 1700 modules which have over 13 years of hot- dry climatic field condition. An analysis of the results obtained in previous ASU-PRL studies show that the major degradation in crystalline silicon modules having glass/polymer construction is encapsulant discoloration (causing short circuit current drop) and solder bond degradation (causing fill factor drop due to series resistance increase). The power degradation for crystalline silicon modules having glass/glass construction was primarily attributed to encapsulant delamination (causing open-circuit voltage drop).
ContributorsVasantha Janakeeraman, Suryanarayana (Author) / Tamizhmani, Govindasamy (Thesis advisor) / Rogers, Bradley (Committee member) / Macia, Narciso (Committee member) / Arizona State University (Publisher)
Created2013
Description
The object of this study was a 26 year old residential Photovoltaic (PV) monocrystalline silicon (c-Si) power plant, called Solar One, built by developer John F. Long in Phoenix, Arizona (a hot-dry field condition). The task for Arizona State University Photovoltaic Reliability Laboratory (ASU-PRL) graduate students was to evaluate the power plant through visual inspection, electrical performance, and infrared thermography. The purpose of this evaluation was to measure and understand the extent of degradation to the system along with the identification of the failure modes in this hot-dry climatic condition. This 4000 module bipolar system was originally installed with a 200 kW DC output of PV array (17 degree fixed tilt) and an AC output of 175 kVA. The system was shown to degrade approximately at a rate of 2.3% per year with no apparent potential induced degradation (PID) effect. The power plant is made of two arrays, the north array and the south array. Due to a limited time frame to execute this large project, this work was performed by two masters students (Jonathan Belmont and Kolapo Olakonu) and the test results are presented in two masters theses. This thesis presents the results obtained on the north array and the other thesis presents the results obtained on the south array. The resulting study showed that PV module design, array configuration, vandalism, installation methods and Arizona environmental conditions have had an effect on this system's longevity and reliability. Ultimately, encapsulation browning, higher series resistance (potentially due to solder bond fatigue) and non-cell interconnect ribbon breakages outside the modules were determined to be the primary causes for the power loss.
ContributorsBelmont, Jonathan (Author) / Tamizhmani, Govindasamy (Thesis advisor) / Henderson, Mark (Committee member) / Rogers, Bradley (Committee member) / Arizona State University (Publisher)
Created2013
Description
Cruz del Sur is an exploration of what it means to be an outsider: as a resident, as a foreigner, from the perspective of the human eye, or from the perspective of a camera lens. An unlikely blending of voices, these poems embark the reader on a journey across a continent, and also into an interior: a mystical quest.
ContributorsMontgomery, Scott (Author) / Dubie, Norman (Thesis advisor) / Hogue, Cynthia (Committee member) / Hummer, Terry (Committee member) / Arizona State University (Publisher)
Created2013
Description
Potential induced degradation (PID) due to high system voltages is one of the major degradation mechanisms in photovoltaic (PV) modules, adversely affecting their performance due to the combined effects of the following factors: system voltage, superstrate/glass surface conductivity, encapsulant conductivity, silicon nitride anti-reflection coating property and interface property (glass/encapsulant; encapsulant/cell; encapsulant/backsheet). Previous studies carried out at ASU's Photovoltaic Reliability Laboratory (ASU-PRL) showed that only negative voltage bias (positive grounded systems) adversely affects the performance of commonly available crystalline silicon modules. In previous studies, the surface conductivity of the glass surface was obtained using either conductive carbon layer extending from the glass surface to the frame or humidity inside an environmental chamber. This thesis investigates the influence of glass surface conductivity disruption on PV modules. In this study, conductive carbon was applied only on the module's glass surface without extending to the frame and the surface conductivity was disrupted (no carbon layer) at 2cm distance from the periphery of frame inner edges. This study was carried out under dry heat at two different temperatures (60 °C and 85 °C) and three different negative bias voltages (-300V, -400V, and -600V). To replicate closeness to the field conditions, half of the selected modules were pre-stressed under damp heat for 1000 hours (DH 1000) and the remaining half under 200 hours of thermal cycling (TC 200). When the surface continuity was disrupted by maintaining a 2 cm gap from the frame to the edge of the conductive layer, as demonstrated in this study, the degradation was found to be absent or negligibly small even after 35 hours of negative bias at elevated temperatures. This preliminary study appears to indicate that the modules could become immune to PID losses if the continuity of the glass surface conductivity is disrupted at the inside boundary of the frame. The surface conductivity of the glass, due to water layer formation in a humid condition, close to the frame could be disrupted just by applying a water repelling (hydrophobic) but high transmittance surface coating (such as Teflon) or modifying the frame/glass edges with water repellent properties.
ContributorsTatapudi, Sai Ravi Vasista (Author) / Tamizhmani, Govindasamy (Thesis advisor) / Srinivasan, Devarajan (Committee member) / Rogers, Bradley (Committee member) / Arizona State University (Publisher)
Created2012
Description
ABSTRACT As the use of photovoltaic (PV) modules in large power plants continues to increase globally, more studies on degradation, reliability, failure modes, and mechanisms of field aged modules are needed to predict module life expectancy based on accelerated lifetime testing of PV modules. In this work, a 26+ year old PV power plant in Phoenix, Arizona has been evaluated for performance, reliability, and durability. The PV power plant, called Solar One, is owned and operated by John F. Long's homeowners association. It is a 200 kWdc, standard test conditions (STC) rated power plant comprised of 4000 PV modules or frameless laminates, in 100 panel groups (rated at 175 kWac). The power plant is made of two center-tapped bipolar arrays, the north array and the south array. Due to a limited time frame to execute this large project, this work was performed by two masters students (Jonathan Belmont and Kolapo Olakonu) and the test results are presented in two masters theses. This thesis presents the results obtained on the south array and the other thesis presents the results obtained on the north array. Each of these two arrays is made of four sub arrays, the east sub arrays (positive and negative polarities) and the west sub arrays (positive and negative polarities), making up eight sub arrays. The evaluation and analyses of the power plant included in this thesis consists of: visual inspection, electrical performance measurements, and infrared thermography. A possible presence of potential induced degradation (PID) due to potential difference between ground and strings was also investigated. Some installation practices were also studied and found to contribute to the power loss observed in this investigation. The power output measured in 2011 for all eight sub arrays at STC is approximately 76 kWdc and represents a power loss of 62% (from 200 kW to 76 kW) over 26+ years. The 2011 measured power output for the four south sub arrays at STC is 39 kWdc and represents a power loss of 61% (from 100 kW to 39 kW) over 26+ years. Encapsulation browning and non-cell interconnect ribbon breakages were determined to be the primary causes for the power loss.
ContributorsOlakonu, Kolapo (Author) / Tamizhmani, Govindasamy (Thesis advisor) / Srinivasan, Devarajan (Committee member) / Rogers, Bradley (Committee member) / Arizona State University (Publisher)
Created2012
Description
The Fledglings of Anani is a universe with an underlying organizing principle of desire, auspiciousness and serendipity, the veiled doors and windows of these realms serve as fugues bridging layers of time leading us through myth and landscape intimately tied to the physical intelligence of earth and character of place. It is a voice that comes to know itself first as being, then in correspondence to nature and her elements, enters into the rhythm of human connection and ultimately circles back to comprehend itself as all these things, varying only in degree. The poems travel further and further toward an allusive center with a contemplative inner eye that embraces the complexity and vitality of life.
ContributorsPoole, Heather Lea (Author) / Dubie, Norman (Thesis advisor) / Hogue, Cynthia (Committee member) / Savard, Jeannine (Committee member) / Arizona State University (Publisher)
Created2012
Description
Black Laurel is a book-length manuscript which has at its center poems that reveal and explore issues related to Michele Poulos's identity as a Greek-American writer, discovering the connections that link the past and present of both Greece and America. These poems often work as a quest to recover identity. They explore the idea that it is her own privileged perspective as an educated Greek-American woman that both allows and in some ways prevents her seeing herself in the Greeks who today are struggling economically, emotionally, and psychologically. Many of the poems work to achieve a complex understanding of both an individual as well as a broader cultural history. These poems sometimes take on the personas of striking figures from other times and other landscapes, while others draw on materials which are somewhat more autobiographical. In one poem titled "Before My Mother Set Herself on Fire," the speaker is an imagined daughter in a modern-day Greek family. The poem, inspired by a news story about an elderly man who shot himself in the head in front of Syntagma Square in Athens to protest the austerity measures imposed on the Greek population, explores the various ways in which a national crisis may affect an individual family. Alternatively, Poulos delves into her personal family history in "When the Wind Falls," a poem about the Nazi invasions of northern Greece. At the same time, this focus on past and present Greece is only one strand in a wide-ranging manuscript woven of materials which also include a variety of subjects related to science, history, eroticism, mysticism, and much more.
ContributorsPoulos, Michele (Author) / Dubie, Norman (Thesis advisor) / Hogue, Cynthia (Committee member) / Hummer, Terry (Committee member) / Arizona State University (Publisher)
Created2013