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Title: Trotskyism: Counter-revolution in disguise.
Creator: Olgin, Moissaye J. (Moissaye Joseph)
Date Issued: 1935
Identifier: 370373, CFDT370373, ucf:5486
Format: Document (PDF)
PURL: http://purl.flvc.org/FCLA/DT/370373

Title: The British labour movement: A syllabus for study classes.
Creator: Cole, G. D. H. (George Douglas Howard)
Date Issued: 1924
Identifier: 369653, CFDT369653, ucf:5466
Format: Document (PDF)
PURL: http://purl.flvc.org/FCLA/DT/369653

Title: EXPLORING THE VALUE OF THE BACHELOR'S DEGREE FOR TEACHERS IN THE EARLY CHILDHOOD EDUCATION FIELD: A RESEARCH SYNTHESIS.
Creator: Hogan, Melissa A, Macy, Marisa, University of Central Florida
Abstract / Description: The implementation of standardized testing has changed education in the United States resulting in a content ripple effect from the higher grades down to preschool aged children. To match that ripple effect early childhood education can be evaluated and reformed accordingly by exploring many factors that make up the early childhood education system. This manuscript addressed one factor, early childhood teacher preparation, through a synthesis of literature related to the potential benefits of...
Show moreThe implementation of standardized testing has changed education in the United States resulting in a content ripple effect from the higher grades down to preschool aged children. To match that ripple effect early childhood education can be evaluated and reformed accordingly by exploring many factors that make up the early childhood education system. This manuscript addressed one factor, early childhood teacher preparation, through a synthesis of literature related to the potential benefits of earning a Bachelor of Science degree in Early Childhood Development and Education, or a BS. The theories of early brain development were explored first and then studies of the social components affecting an Early Childhood Educator's, or ECE's, choice in teacher preparation were reviewed. The review then defined and compared the Child Development Associate or CDA, the Associate of Arts degree, or AA, and the BS. Professional recommendations and standards according to the National Association for Young Children, or NAEYC were included to understand how valuable the BS is to these trend setters of the field. The review then explored how the BS is currently being used nationally in a state-funded program known as VPK, utilizing the National Institute for Early Education Research, or NIEER. This data provided a snapshot of the national demand for the BS in the early childhood field. The pay disparities were then correlated with levels of education and compared with primary and upper grade compensation. The final value explored was research of how the BS directly affected results of the quality in the early childhood classroom and teacher-child interactions. These studies used two quality rating scales, the ECERS and CLASS, which were defined and compared. The findings of the synthesized literature review provided understanding of a young field that is growing and implies where further research and change could happen to match the effects of an evolving education system in the United States of America.
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Date Issued: 2018
Identifier: CFH2000420, ucf:45866
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH2000420

Title: The Seaside Resort Towns of Cape May and Atlantic City, New Jersey: Development, Class Consciousness, and the Culture of Leisure in the Mid to Late Victorian Era.
Creator: Ressetar, Tatyana, Lester, Connie, Crepeau, Richard, Larson, Peter, University of Central Florida
Abstract / Description: (")Victorianism(") is a highly controversial, sometimes ironic, term penned by historians throughout various works that has come to hold dramatic weight in both its meaning and its influence. Though the term is usually most closely associated with nineteenth century England, Victorianism was a highly influential movement in American culture simultaneously as well, specifically in the spheres of home, work, and play. Of those, (")play,(") or leisure, is undoubtedly the least explored,...
Show more(")Victorianism(") is a highly controversial, sometimes ironic, term penned by historians throughout various works that has come to hold dramatic weight in both its meaning and its influence. Though the term is usually most closely associated with nineteenth century England, Victorianism was a highly influential movement in American culture simultaneously as well, specifically in the spheres of home, work, and play. Of those, (")play,(") or leisure, is undoubtedly the least explored, especially before the latter decades of the twentieth century. Prior to this period, most literature about the Victorians, with the exception of a few works, only dealt with masculinity, religion, and the rigid dynamic of the nineteenth century household. Recently, historians like James Walvin, Pamela Horn, and Hugh Cunningham have attempted to draw attention to Victorian leisure with excellent works on pastimes and society during the nineteenth century, but they represent only a few. However, many works of this caliber focus on England, the (")birthplace(") of Victorianism. Thus, this work attempts to emphasize that the cultural phenomenon of Victorianism was just as present in the United States. Despite the recurring themes of the home and the workplace so often chosen by scholars, it is actually within the realm of leisure that the controversial issues of the Victorian period and its people can be best observed. Class, race, and gender were three major components of the Victorian culture that shaped the various forms of leisure and recreation, as well as the specific restrictions on those amusements. All of these factors had a shared, tremendous influence on the progress (or lack thereof) towards a more modern era and society that occurred at the turn of the twentieth century.In the pages to follow, the numerous contradictions and paradoxes of Victorian leisure in America will be examined, ultimately demonstrating how pastimes and recreation (and their outlets) in the mid to late nineteenth century were neither truly Victorian nor truly progressive, but indeed a combination of both. This creates further irony during this controversial period. However, before exploring these outlets, the term (")Victorian(") will be examined while placing it into the context of mid to late nineteenth century Americans who belonged to all classes of travelers. It will become apparent that American Victorians had much invested in their values, but were also willing to break the rules regarding certain amusements and pleasures. Moreover, the (")democratization(") of leisure will be highlighted as the upper and lower classes began to enjoy the same recreations. Marked innovations of the period will also be discussed, as to highlight their importance on Victorian leisure and its development, which will also be referred to throughout the chapters. These topics will be addressed before examining the specific Victorian leisure culture of two of America's oldest seaside destinations: Cape May and Atlantic City, both in New Jersey. The guests, accommodations and transportation, and offerings at these resort towns will act as a mirror into mid to late nineteenth century culture. There, the contradictory ideals and rules of Victorianism are exhibited as the resorts rose to prominence. The decline of (")elite-only(") leisure and the rise of the (")excursionist(") will be examined throughout the progression of the towns' growth and boom periods. Exploring the ironies of Victorian leisure through the proverbial lens of Cape May and Atlantic City proves effective, as the towns came to represent opposite ends of the (")socially acceptable(") spectrum after a short period, and were full of similar inconsistencies and paradoxes themselves. Additionally, their current fates remain a product of their polarized Victorian heydays, further proving the influence of seaside resort culture, the late Victorian period, and its ideals on the broader field of American leisure history.
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Date Issued: 2011
Identifier: CFE0004157, ucf:49038
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004157

Title: Lonely Monsters.
Creator: Davis, Patricia, Rushin, Pat, Thaxton, Terry, Neal, Mary, University of Central Florida
Abstract / Description: Lonely Monsters is a full-length feature screenplay that explores the ways in which a classic damsel narrative may be reconsidered. It offers ideas on how death and girlhood may find symmetry. The characters within Lonely Monsters deal with loss, identity of the self versus the world's ideas on self-identity, place, gender, and class. Utilizing the elements of a fairy tale, the narrative seeks to complicate the roles of gender in a cautionary tale. Set in the fictional Florida town of Puerto...
Show moreLonely Monsters is a full-length feature screenplay that explores the ways in which a classic damsel narrative may be reconsidered. It offers ideas on how death and girlhood may find symmetry. The characters within Lonely Monsters deal with loss, identity of the self versus the world's ideas on self-identity, place, gender, and class. Utilizing the elements of a fairy tale, the narrative seeks to complicate the roles of gender in a cautionary tale. Set in the fictional Florida town of Puerto Palmera, an economic divide between the Estates and the Glades makes for a ripe, troublesome environment for a foul modern-day aristocrat who masquerades as a grandiose and romantic prince. The story's protagonist, Fisher Franklin, loses two key relationships(-)as well as her sound mind(-)in the wake of the false prince's folly. Utilizing her experiences as a child within the lavish lives of the Estates(-)at the desire of a wealthy and secretive benefactor with motives of her own(-)Fisher creates a persona who becomes entangled in a lustful and dangerous liaison with Wyatt Sharpe, the villainous playboy. By assuming this persona, Fisher recasts herself as the damsel, the monster, and the heroine.
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Date Issued: 2015
Identifier: CFE0005600, ucf:50232
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005600

Title: Class struggles in America.
Creator: Simons, A. M. (Algie Martin)
Date Issued: 1906
Identifier: 212130, CFDT212130, ucf:4923
Format: Document (PDF)
PURL: http://purl.flvc.org/FCLA/DT/212130

Title: Marx and America.
Creator: Wolfe, Bertram David
Date Issued: 1934
Identifier: 890962, CFDT890962, ucf:5615
Format: Document (PDF)
PURL: http://purl.flvc.org/FCLA/DT/890962

Title: The struggle against opportunism in the American labor movement: An appraisal of Daniel De Leon.
Creator: Raiskii, Leonid Grigor'evich
Date Issued: 1959
Identifier: 671329, CFDT671329, ucf:5545
Format: Document (PDF)
PURL: http://purl.flvc.org/FCLA/DT/671329

Title: THE REPRESENTATION OF POVERTY IN GREAT DEPRESSIONAMERICAN LITERATURE.
Creator: Austin, Cavel, Olan, Elsie, University of Central Florida
Abstract / Description: The objective of this thesis is to explore how American authors represented poverty across different states during the Depression Era. I have chosen to review social reform author John Steinbeck, and proletariat authors, Michael Gold, Meridel Le Sueur, and William Attaway. Before addressing the issues presented in the data collection tools (novels): The Grapes of Wrath, Jews Without Money, The Girl, and Blood on the Forge, I reviewed the fundamentals of the events leading up to the crash of...
Show moreThe objective of this thesis is to explore how American authors represented poverty across different states during the Depression Era. I have chosen to review social reform author John Steinbeck, and proletariat authors, Michael Gold, Meridel Le Sueur, and William Attaway. Before addressing the issues presented in the data collection tools (novels): The Grapes of Wrath, Jews Without Money, The Girl, and Blood on the Forge, I reviewed the fundamentals of the events leading up to the crash of the stock market, which spiraled the United States and the world at large in the greatest Depression ever known. In this thesis, I have also outlined a summary of the novels for the benefit of readers who may not have had the opportunity to read them. I have applied a Marxist literary critical analysis to the preceding novels highlighting three overarching concepts of the theory: economic power, materialism versus spirituality, and class conflict. Evolving from these concepts are the key tenets of Marxism: base, superstructure, hegemony, commodification, class conflict, and false consciousness. In the literary critical analysis, I applied these key tenets to the plot of each novel in order to underscore the ideologies of Marxist theorists with regards to the existence of class divisions and how this division creates class conflict between the bourgeoisie and the proletariats.
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Date Issued: 2014
Identifier: CFH0004708, ucf:45397
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH0004708

Title: Chemometric Applications to a Complex Classification Problem: Forensic Fire Debris Analysis.
Creator: Waddell, Erin, Sigman, Michael, Belfield, Kevin, Campiglia, Andres, Yestrebsky, Cherie, Ni, Liqiang, University of Central Florida
Abstract / Description: Fire debris analysis currently relies on visual pattern recognition of the total ion chromatograms, extracted ion profiles, and target compound chromatograms to identify the presence of an ignitable liquid according to the ASTM International E1618-10 standard method. For large data sets, this methodology can be time consuming and is a subjective method, the accuracy of which is dependent upon the skill and experience of the analyst. This research aimed to develop an automated classification...
Show moreFire debris analysis currently relies on visual pattern recognition of the total ion chromatograms, extracted ion profiles, and target compound chromatograms to identify the presence of an ignitable liquid according to the ASTM International E1618-10 standard method. For large data sets, this methodology can be time consuming and is a subjective method, the accuracy of which is dependent upon the skill and experience of the analyst. This research aimed to develop an automated classification method for large data sets and investigated the use of the total ion spectrum (TIS). The TIS is calculated by taking an average mass spectrum across the entire chromatographic range and has been shown to contain sufficient information content for the identification of ignitable liquids. The TIS of ignitable liquids and substrates, defined as common building materials and household furnishings, were compiled into model data sets. Cross-validation (CV) and fire debris samples, obtained from laboratory-scale and large-scale burns, were used to test the models. An automated classification method was developed using computational software, written in-house, that considers a multi-step classification scheme to detect ignitable liquid residues in fire debris samples and assign these to the classes defined in ASTM E1618-10. Classifications were made using linear discriminant analysis, quadratic discriminant analysis (QDA), and soft independent modeling of class analogy (SIMCA). Overall, the highest correct classification rates were achieved using QDA for the first step of the scheme and SIMCA for the remaining steps. In the first step of the classification scheme, correct classification rates of 95.3% and 89.2% were obtained for the CV test set and fire debris samples, respectively. Correct classifications rates of 100% were achieved for both data sets in the majority of the remaining steps which used SIMCA for classification. In this research, the first statistically valid error rates for fire debris analysis have been developed through cross-validation of large data sets. The error rates reduce the subjectivity associated with the current methods and provide a level of confidence in sample classification that does not currently exist in forensic fire debris analysis.
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Date Issued: 2013
Identifier: CFE0004954, ucf:49586
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004954

Title: White and Black Womanhoods and Their Representations in 1920s American Advertising.
Creator: Turnbull, Lindsey, Lester, Connie, Sacher, John, Dandrow, Edward, University of Central Florida
Abstract / Description: The 1920s represented a time of tension in America. Throughout the decade, marginalized groups created competing versions of a proper citizen. African-Americans sought to be included in the national fabric. Racism encouraged solidarity, but black Americans did not agree upon one method for coping with, and hopefully ending, antiblack racism. White women enjoyed new privileges and took on more roles in the public sphere. Reactionary groups like the Ku Klux Klan found these new voices...
Show moreThe 1920s represented a time of tension in America. Throughout the decade, marginalized groups created competing versions of a proper citizen. African-Americans sought to be included in the national fabric. Racism encouraged solidarity, but black Americans did not agree upon one method for coping with, and hopefully ending, antiblack racism. White women enjoyed new privileges and took on more roles in the public sphere. Reactionary groups like the Ku Klux Klan found these new voices unsettling and worrisome and celebrated a white, native-born, Protestant and male vision of the American citizen. Simultaneously, technological innovations allowed for advertising to flourish and spread homogenizing information regarding race, gender, values and consumption across the nation. These advertisements selectively represented these changes by channeling them into pre-existing prescriptive ideology. Mainstream ads, which were created by whites for white audiences, reinforced traditional ideas regarding black men and women and white women's roles. Even if white women were featured using technology or wearing cosmetics, they were still featured in prescribed roles as housekeepers, wives and mothers who deferred to and relied on their husbands. Black women were featured in secondary roles, as servants or mammies, if at all. Concurrently, the black press created its own representations of women. Although these representations were complex and sometimes contradictory and had to reach multiple audiences, black-created ads featured women in a variety of roles, such as entertainers, mothers and business women, but never as mammies. Then, in a decade of increased tensions, white-created ads relied on traditional portrayals of women and African-Americans while black-designed ads offered more positive, although complicated, visions of womanhood.
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Date Issued: 2012
Identifier: CFE0004612, ucf:49939
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0004612

Title: Interviews with foreign workers' delegations.
Creator: Stalin, Joseph
Date Issued: 1927
Identifier: 367847, CFDT367847, ucf:5354
Format: Document (PDF)
PURL: http://purl.flvc.org/FCLA/DT/367847

Title: Chartism and the trades union.
Creator: Postgate, Raymond, Labour Research Department
Date Issued: 1922
Identifier: 357437, CFDT357437, ucf:5184
Format: Document (PDF)
PURL: http://purl.flvc.org/FCLA/DT/357437

Title: EXPLORING TRANSIENT IDENTITIES: DECONSTRUCTING DEPICTIONS OF GENDER AND IMPERIAL IDEOLOGY IN THE ORIENTAL TRAVEL NARRATIVES OF ENGLISHWOMEN, 1831-1915.
Creator: DeLoach, CarrieAnne, Stockdale, Nancy, University of Central Florida
Abstract / Description: Englishwomen who traveled to the "Orient" in the Victorian era constructed an identity that was British in its bravery, middle-class in its refinement, feminine in appearance and speech and Christian in its intolerance of Oriental heathenism. Studying Victorian female travel narratives that described journeys to the Orient provides an excellent opportunity to reexamine the diaphanous nature of the boundaries of the public/private sphere dichotomy; the relationship between travel, overt...
Show moreEnglishwomen who traveled to the "Orient" in the Victorian era constructed an identity that was British in its bravery, middle-class in its refinement, feminine in appearance and speech and Christian in its intolerance of Oriental heathenism. Studying Victorian female travel narratives that described journeys to the Orient provides an excellent opportunity to reexamine the diaphanous nature of the boundaries of the public/private sphere dichotomy; the relationship between travel, overt nationalism, and gendered constructions of identity, the link between geographic location and self-definition; the power dynamics inherent in information gathering, organization and production. Englishwomen projected gendered identities in their writings, which were both "imperially" masculine and "domestically" feminine, depending on the needs of a particular location and space. The travel narrative itself was also a gendered product that served as both a medium of cultural expression for Victorian women and a tool of restraint, encouraging them to conform to societal expectations to gain limited authority and recognition for their travels even while they embraced the freedom of movement. The terms "imperial masculinity" and "domestic femininity" are employed throughout this analysis to categorize the transient manipulation of character traits associated in Victorian society with middle- and upper-class men abroad in the empire and middle- and upper-class women who remained within their homes in Great Britain. Also stressed is the decision by female travelers to co-assert feminine identities that legitimated their imperial freedom by alluding to equally important components of their transported domestic constructions of self. Contrary to scholarship solely viewing Victorian projections of the feminine ideal as negative, the powers underlining social determinants of gender norms will be treated as "both regulatory and productive." Englishwomen chose to amplify elements of their domestic femininity or newly obtained imperial masculinity depending on the situation encountered during their travels or the message they wished to communicate in their travel narratives. The travel narrative is a valuable tool not only for deconstructing transient constructions of gender, but also for discovering the foundations of race and class ideologies in which the Oriental and the Orient are subjugated to enhance Englishwomen's Orientalist imperial status and position. This thesis is modeled on the structure of the traveling experience. In reviewing first the intellectual expectations preceding travel, the events of travel and finally the emotional reaction to the first two, a metaphoric attempt to better understand meaning through mimicry has been made. Over twenty travel narratives published by Englishwomen of varying social backgrounds, economic classes and motivations for travel between 1830 and World War I were analyzed in conjunction with letters, diaries, fictional works, newspaper articles, advice manuals, travel guides and religious texts in an effort to study the uniquely gendered nature of the Preface in female travel narratives; definitions of "travelers" and "traveling;" the manner in which "new" forms of metaphysical identification formulated what Victorian lady travelers "pre-knew" the "East" to be; the gendered nature in which female travelers portrayed their encounters with the "realities" of travel; and the concept of "disconnect," or the "distance" between a female traveler's expectation and the portrayed "reality" of what she experienced in the Orient.
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Date Issued: 2006
Identifier: CFE0001487, ucf:47101
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0001487

Title: Quasi-Gorenstein Modules.
Creator: York, Alexander, Brennan, Joseph, Martin, Heath, Ismail, Mourad, Kuebler, Stephen, University of Central Florida
Abstract / Description: This thesis will study the various roles that quasi-Gorenstein modules and their properties play in the study of homological dimensions and linkage of modules. To that effect we begin by studying these modules in their own right. An $R$-module $M$ of grade $g$ will be quasi-Gorenstein if $\Ext_R^i(M,R)=0$ for $i\neq g$ and there is an isomorphism $M\cong\Ext_R^g(M,R)$. Such modules have many nice properties which we will explore throughout this thesis. We will show they help extend a...
Show moreThis thesis will study the various roles that quasi-Gorenstein modules and their properties play in the study of homological dimensions and linkage of modules. To that effect we begin by studying these modules in their own right. An $R$-module $M$ of grade $g$ will be quasi-Gorenstein if $\Ext_R^i(M,R)=0$ for $i\neq g$ and there is an isomorphism $M\cong\Ext_R^g(M,R)$. Such modules have many nice properties which we will explore throughout this thesis. We will show they help extend a characterization of diagonalizable matrices over principal ideal domains to more general rings. We will use their properties to help lay a foundation for a study of homological dimensions, helping to generalize the concept of Gorenstein dimension to modules of larger grade and present a connection to these new dimensions with certain generalized Serre conditions.We then give a categorical construction to the concept of linkage. The main motivation of such a construction is to generalize ideal and module linkage into one unified theory. By using the defintion of linkage presented by Nagel \cite{NagelLiaison}, we can use categorical language to define linkage between categories. One of the focuses of this thesis is to show that the history of linkage has been wrought with a misunderstanding of which classes of objects to study. We give very compelling evidence to suggest that linkage is a tool to gain information about the even linkage classes of objects. Further, scattered among the literature is a wide array of results pertaining to module linkage, homological dimensions, duality, and adjoint functor pairs and for which we show that these fall under the umbrella of this unified theory. This leads to an intimate relationship between associated homological dimensions and the linkage of objects in a category. We will give many applications of the theory to modules allowing one to cover vast grounds from Gorenstein dimensions to Auslander and Bass classes to local cohomology and local homology. Each of these gives useful insight into certain classes of modules by applying this categorical approach to linkage.
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Date Issued: 2018
Identifier: CFE0007268, ucf:52202
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0007268

Title: The Effectiveness of Using Florida Virtual High School Course Data during the College Admission Process as a Predictor of Degree Completion Within Six Years.
Creator: Callahan, Michael, King, Kathy (Kathleen), Cox, Dr. Thomas, Whiteman, JoAnn, Preston, Michael, University of Central Florida
Abstract / Description: The admission process at higher education institutions has not adapted for online distance education classes taken in high schools, such as those offered by the Florida Virtual School. The purpose of this study was to determine whether online distance education courses taken in high school can serve as an indicator of student success in post-secondary education. An honors program at a large public research university provided the data examined. This honors program stored online distance...
Show moreThe admission process at higher education institutions has not adapted for online distance education classes taken in high schools, such as those offered by the Florida Virtual School. The purpose of this study was to determine whether online distance education courses taken in high school can serve as an indicator of student success in post-secondary education. An honors program at a large public research university provided the data examined. This honors program stored online distance education information in a database, which allowed for analysis. Presently, the institution's primary undergraduate admission office does not collect or store this type of information. I used SPSS Statistics to calculate logistical regression on this data. My goal was to discover what effect the high school online distance education variables had on the outcome of graduating in four or six years. Graduation rate is a key metric for colleges and universities as an indicator of success. For this reason, I wanted to determine through this study whether high school online distance education assisted in predicting which students will graduate. At least two stakeholders will find this information useful. Admission officers and, more specifically, honors admission officers will gain more insight into the student selection process as this study examines students in the top 10% of the incoming class. The other group, future researchers, will learn from this study and other new studies for even more understanding on this topic. Although the results indicated that high-achieving Florida Virtual School students do not graduate at higher rate than students who have not completed distance education classes, more research is required to understand how the other 90% of student applicants are affected by distance education courses completed in high school.
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Date Issued: 2017
Identifier: CFE0006861, ucf:51754
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006861

Title: SPRAY COOLING FOR LAND, SEA, AIR AND SPACE BASED APPLICATIONS,A FLUID MANAGEMENT SYSTEM FOR MULTIPLE NOZZLE SPRAY COOLING AND A GUIDE TO HIGH HEAT FLUX HEATER DESIGN.
Creator: Glassman, Brian, Chow, Louis, University of Central Florida
Abstract / Description: This thesis is divided into four distinct chapters all linked by the topic of spray cooling. Chapter one gives a detailed categorization of future and current spray cooling applications, and reviews the major advantages and disadvantages that spray cooling has over other high heat flux cooling techniques. Chapter two outlines the developmental goals of spray cooling, which are to increase the output of a current system and to enable new technologies to be technically feasible. Furthermore,...
Show moreThis thesis is divided into four distinct chapters all linked by the topic of spray cooling. Chapter one gives a detailed categorization of future and current spray cooling applications, and reviews the major advantages and disadvantages that spray cooling has over other high heat flux cooling techniques. Chapter two outlines the developmental goals of spray cooling, which are to increase the output of a current system and to enable new technologies to be technically feasible. Furthermore, this chapter outlines in detail the impact that land, air, sea, and space environments have on the cooling system and what technologies could be enabled in each environment with the aid of spray cooling. In particular, the heat exchanger, condenser and radiator are analyzed in their corresponding environments. Chapter three presents an experimental investigation of a fluid management system for a large area multiple nozzle spray cooler. A fluid management or suction system was used to control the liquid film layer thickness needed for effective heat transfer. An array of sixteen pressure atomized spray nozzles along with an imbedded fluid suction system was constructed. Two surfaces were spray tested one being a clear grooved Plexiglas plate used for visualization and the other being a bottom heated grooved 4.5 x 4.5 cm2 copper plate used to determine the heat flux. The suction system utilized an array of thin copper tubes to extract excess liquid from the cooled surface. Pure water was ejected from two spray nozzle configurations at flow rates of 0.7 L/min to 1 L/min per nozzle. It was found that the fluid management system provided fluid removal efficiencies of 98% with a 4-nozzle array, and 90% with the full 16-nozzle array for the downward spraying orientation. The corresponding heat fluxes for the 16 nozzle configuration were found with and without the aid of the fluid management system. It was found that the fluid management system increased heat fluxes on the average of 30 W/cm2 at similar values of superheat. Unfortunately, the effectiveness of this array at removing heat at full levels of suction is approximately 50% & 40% of a single nozzle at respective 10„aC & 15„aC values of superheat. The heat transfer data more closely resembled convective pooling boiling. Thus, it was concluded that the poor heat transfer was due to flooding occurring which made the heat transfer mechanism mainly forced convective boiling and not spray cooling. Finally, Chapter four gives a detailed guide for the design and construction of a high heat flux heater for experimental uses where accurate measurements of surface temperatures and heat fluxes are extremely important. The heater designs presented allow for different testing applications; however, an emphasis is placed on heaters designed for use with spray cooling.
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Date Issued: 2005
Identifier: CFE0000473, ucf:46351
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0000473

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