Relevant bibliographies by topics / Pewter – Collectors and collecting

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Pewter – Collectors and collecting'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Pewter – Collectors and collecting"

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Hales, Shelley. "COLLECTING THE COLLECTORS." Classical Review 54, no. 1 (April 2004): 232–33. http://dx.doi.org/10.1093/cr/54.1.232.

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SHUKER, ROY. "Beyond the ‘high fidelity’ stereotype: defining the (contemporary) record collector." Popular Music 23, no. 3 (October 2004): 311–30. http://dx.doi.org/10.1017/s0261143004000224.

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The popular image of record collectors is of obsessive males, whose ‘train spotting’ passion for collecting is often a substitute for ‘real’ social relationships. This image can draw on some support from academic discussions of collectors and collecting, but it represents only a partial account of record collectors. This paper draws on interviews with sixty-seven self-identified record collectors to show how they demonstrate a complex mix of characteristics: a love of music; obsessive-compulsive behaviour, accumulation and completism, selectivity and discrimination; and self-education and scholarship. As a social practice, record collecting presents itself as a core component of individual social identity and a central part of the life cycle.
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Lobay, Gordon. "Collecting and Collectors from Antiquity to Modernity." Etruscan Studies 23, no. 1-2 (November 4, 2020): 202–9. http://dx.doi.org/10.1515/etst-2020-0014.

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McINTOSH, WILLIAM D., and BRANDON SCHMEICHEL. "Collectors and Collecting: A Social Psychological Perspective." Leisure Sciences 26, no. 1 (January 2004): 85–97. http://dx.doi.org/10.1080/01490400490272639.

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Saridakis, Charalampos, and Sofia Angelidou. "A case-based generalizable theory of consumer collecting." European Journal of Marketing 52, no. 5/6 (May 14, 2018): 946–72. http://dx.doi.org/10.1108/ejm-10-2016-0570.

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Purpose Collecting behaviour is a special type of consumption, which consists of several traits, such as “completion”, “perfection”, “caring” and “cooperation”. The purpose of this study is to shed light on this complex consumption behaviour, by effectively developing an empirical typology of collectors and explaining their motivation to engage in collecting. Design/methodology/approach In total, 208 questionnaires were collected among Thai collectors. A set-theoretic comparative approach was implemented – namely, fuzzy-set qualitative comparative analysis. The value of the proposed approach over conventional correlational methods, is illustrated through an examination of a set of relevant research propositions. Findings The study develops an empirical typology of collectors, on the basis of the various collecting behaviour traits. It has been suggested that different combinations of motives are sufficient for identifying collector types accurately, and the proposed typology is stable and generalizable across collectors of different demographic characteristics. Specifically, “expert professionals” are mainly driven by adventure and social motives, while the role of idea motive is crucial for “introvert focusers”. Adventure and social motives are necessary conditions for “extrovert altruists”, while gratification has a deleterious role. The presence of social motive is necessary for “hobbyists”, while the absence of value motive is also required. Practical implications The brand collectible market is booming, and the collectibles can be a strategy for brands to maintain existing users and reinforce loyalty levels. Global brands, such as Swatch and Coca-Cola, have been acquired for collection rather than typical consumption purposes. Marketers and brand managers should therefore monitor the motivation behind this complex consumption behaviour. The mosaic of motives to engage in collecting behaviour varies across different types of collectors, and therefore specifically tailored strategies are proposed. Originality/value The study tackles the lack of literature specifically focussing on collecting behaviour in relation to motivation. This is the first attempt to empirically derive a collectors’ typology and provide a nuanced coverage of how financial and nonfinancial (hedonic) motives and their combinations affect different collector types.
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Krawczyk, Janusz, Katarzyna Kocewiak, Jan Talaga, and Irina Postnikova. "MECHANISMS OF TRAPPING FINE DUST IN WET DUST COLLECTING APPARATUS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 9 (August 31, 2019): 97–101. http://dx.doi.org/10.6060/ivkkt.20196209.5926.

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The high efficiency of intensive operation of wet scrubbers is the result of a simultaneous formation of different mechanisms of dust particle collectors. The collectors can be understood as droplets of atomised liquid, bubbles formed in the conditions of intensive barbotage, liquid surface and wet surfaces. All collectors are formed during the operation of the circulating unit. The deposition of dust particles from gas occurs as a result of centrifugal forces and secondary circulations in the guide duct as well as the effect of the water curtain, liquid barbotage and the flow of dusty gas through the droplet-splash layer. Discussions substantiating the possibility of confirming the effect of suspension viscosity on the efficiency of the dust collection process can be related both to the analysis of basic mechanisms affecting the deposition of particles on liquid collectors and the conditions of generating collectors. In total liquid recirculation in wet dedusting equipment, concentration of solids in a liquid rises. In such conditions, a gradual decrease in their dedusting efficiency is possible. The effect depends on dust physiochemical properties, kinetic energy of particles, the type of equipment used, and specifically on the way of organization of the contact of the liquid and gas phases. Studies of the effectiveness of dedusting depending on various factors are given in the next article by the same authors.
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Witkowski, Terrence H. "Arms and armor collecting in America: history, community and cultural meaning." Journal of Historical Research in Marketing 12, no. 4 (August 24, 2020): 421–47. http://dx.doi.org/10.1108/jhrm-12-2019-0050.

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Purpose This study aims to present a history and critical analysis of arms and armor collecting in America from the late 19th century until the present day. Design/methodology/approach The research draws from the literature on arms and armor, from primary written, visual and material evidence, and from the author’s long experience as an antique gun and sword collector. Findings American arms and armor collectors have included men of great wealth, museums and their curators and many enthusiasts of more modest means. Collectors, dealers and curators have created a substantial arms literature. Collectors have organized around various types of artifacts, historical periods and company brands. Dealers, auction houses and manufacturers have provisioned the market with period pieces and reproductions. Originality/value The history of antique arms and armor collecting is regarded as a social activity where enthusiasts have pursued “serious leisure” through consumption and brand communities. This history is further analyzed as a cultural practice wherein generations of collectors have interpreted the meaning of antique arms and armor.
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Heljakka, Katriina Irja. "More than Collectors." Games and Culture 13, no. 3 (September 30, 2016): 240–59. http://dx.doi.org/10.1177/1555412016670493.

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The article aims to present, analyze, and discuss the attitudes of the three groups of adults—theorists, hobbyists and “everyday players”—toward play(ful) behavior and activities in relation to character toys. The rhetoric of play theorists is mirrored against the rhetoric of organized players (hobbyists) and (nonorganized) everyday players through in-depth interviews and participatory observation. Questions guiding the exploratory path this article takes include the following: First, what has led to the dominant ideas of the toy as a collectable item and of adult toy consumers as toy collectors? Second, why is the manipulation of toys that happens at adult age considered hobbying and not playing? The results of the analysis indicate that the uses of toys at adult age represent more complex and multifaceted actions and relationships to play than the terms “collecting” and “hobbying” imply.
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Grimberg, Phillip. "Introduction to Special Issue on “Collecting, Collections, and Collectors”." Ming Qing Yanjiu 24, no. 1 (May 15, 2020): 1–10. http://dx.doi.org/10.1163/24684791-12340040.

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Williams, Emily Rebecca. "Red Collections in Contemporary China." British Journal of Chinese Studies 11 (June 29, 2021): 71–90. http://dx.doi.org/10.51661/bjocs.v11i0.73.

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“Red Collecting” is a widespread phenomenon in contemporary China. It refers to the collecting of objects from the Chinese Communist Party’s history. Red Collecting has received only minimal treatment in English-language scholarly literature, much of which focuses on individual object categories (primarily propaganda posters and Chairman Mao badges) and overemphasises the importance of Cultural Revolution objects within the field. Because of this limited focus, the collectors’ motivations have been similarly circumscribed, described primarily in terms of either neo-Maoist nostalgia or the pursuit of profit. This article will seek to enhance this existing literature and, in doing so, offer a series of new directions for research. It makes two main arguments. First, that the breadth of objects incorporated within the field of Red Collecting is far broader than current literature has acknowledged. In particular, the importance of revolutionary-era (pre-1949) collections, as well as regional and rural collections is highlighted. Second, it argues that collectors are driven by a much broader range of motivations, including a variety of both individual and social motivations. Significantly, it is argued that collectors’ intentions and their understandings of the past do not always align; rather, very different understandings of China’s recent past find expression through Red Collecting. As such, it is suggested that Red Collecting constitutes an important part of contemporary China’s “red legacies,” one which highlights the diversity of memories and narratives of both the Mao era and the revolutionary period. Image © Hou Feng
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Dissertations / Theses on the topic "Pewter – Collectors and collecting"

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Bracken, Susan Caroline. "Collectors and collecting in England c.1600-c.1660." Thesis, University of Sussex, 2011. http://sro.sussex.ac.uk/id/eprint/45343/.

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Samson, J. O. (James Oliver), and n/a. "Cultures of collecting: Maori curio collecting in Murihiku, 1865-1975." University of Otago. Department of Anthropology, 2003. http://adt.otago.ac.nz./public/adt-NZDU20070504.115610.

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The ambivalence of many prehistorians toward curio collections has meant that, although they recognise some of their shortcomings, they nevertheless use collections as if they had qualities of archaeological assemblages. In this dissertation it is posited and then demonstrated that curio collections are very different entities to archaeological assemblages. In order to use collections in valid constructions of New Zealand�s pre-European past, the processes that led to their formation need to be understood. It is only then that issues of representation can be addressed. In order to better understand the collecting process, a study of the activity of 24 curio collectors who operated in the Murihiku region of southern New Zealand during the period between 1865 and 1975 was undertaken. The study was structured about two key notions: the idea of the �filter� and the idea that tools and ornaments have a �life history� that extends from the time that raw material was selected for the manufacture to the present. The notion of the filter made possible a determination of the effects of particular behaviours on patterns of collector selectivity and the extent and nature of provenance recording; and the extended concept of life history recognised that material culture functions in multiple cultural and chronological contexts-within both indigenous and post-contact spheres. Examination of the collecting process led to the identification of five curio collecting paradigms: curio collecting for the acquisition of social status, curio collecting for financial return, curio collecting as an adjunct to natural history collecting, curio collecting as an adjunct to historical recording, and ethnological or culture-area curio collecting. Filtering processes associated with each paradigm resulted in particular, but not always distinctive, patterns of curio selectivity and styles of provenance recording. A switch in the focus of attention from examination of curio collectng processes generally to the study of the filtering processes that shaped collections from a specific archaeological site-the pre-European Otago Peninsula site of Little Papanui (J44/1)- enabled some evaluation of individuual collection representation. A database recording up to 19 attributes for each of 6282 curios localised to �Little Papanui� in Otago Museum enabled 31 dedicated or �ardent� collectors who operated at the site to be identified. These 31 dedicated collectors were grouped according to the paradigm that best described their collecting behaviour. It was found that the greater proportion of these dedicated collectors (n=12, 39%) had been influenced by the ethnological or culture-area collecting paradigm. These 12 collectors were responsible for recovering a remarkable 5645 curios or nearly ninety-percent (89.86%) of the meta-collection. Because curio collections lack meaningfully recorded stratigraphic provenance, it is the technological and social context in which tools and ornaments functioned that must become the focus of curio collection studies. Appropriate studies of technological and social and context focus upon evaluations of raw material sourcing, evaluations of manufacture technique and assessments of tool and ornament use and reuse (and integrative combinations of these modes of study). These sorts of evaluation require large collections compiled in the least selective manner possible and the collections need to be reliably localised to specific sites. Collections compiled by the ethnological or culture-area collectors have these qualities. Collections compiled within other paradigms lack locality information and were assembled in highly selective manners.
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Kell, Patricia Ellen. "British collecting, 1656-1800 : scientific enquiry and social practice." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670252.

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Allsop, Jessica Lauren. "Curious objects and Victorian collectors : men, markets, museums." Thesis, University of Exeter, 2013. http://hdl.handle.net/10871/14976.

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This thesis examines the portrayal of gentleman collectors in late-nineteenth and early-twentieth-century literature, arguing that they often find themselves challenged and destabilised by their collections. The collecting depicted contrasts revealingly with the Enlightenment practices of classification, taxonomy, and commodification, associated with the growth of both the public museum and the market economy. The dominance of such practices was bound up with the way they promoted subject-object relations that defined and empowered masculine identity. In the Dialectic of Enlightenment Theodor W. Adorno and Max Horkheimer note that “[i]n the most general sense of progressive thought, the Enlightenment has always aimed at liberating men from fear and establishing their sovereignty” (3). That being so, this study explores how the drive to classify and commodify the material world found oppositional, fictional form in gothicly inflected texts depicting a fascinating but frightening world of unknowable, alien objects and abject, emasculated subjects. The study draws upon Fred Botting’s contention that gothic extremes are a reaction to the “framework” of “reductive and normalising limits of bourgeois morality and modes of production” (89). Examining novels and short stories by Richard Marsh, M.R. James, Arthur Machen, Vernon Lee, George Gissing, Wilkie Collins, Bram Stoker, Mary Cholmondeley, and Mary Ward, the thesis shows how gothicised instances of unproductive-masochism, pathological collecting, thwarted professionals, and emasculated heirs broke down the “framework” within which men and material culture were understood to interact productively and safely. Individual chapters dealing respectively with acquisition, possession, dissemination and inheritance, respond to the recent “material turn” in the humanities, bringing together literary criticism and historically grounded scholarship to reveal the collector and the collection as the locus 3 for concerns with masculinity and materiality that preoccupied a turn-of-the-century mindset.
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Li, Peiwen, Jeong-Pill Ki, and Hong Liu. "Analysis and optimization of current collecting systems in PEM fuel cells." SpringerOpen, 2012. http://hdl.handle.net/10150/610164.

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This paper presents analytical and experimental studies on optimization of the gas delivery and current collection system in a proton exchange membrane (PEM) fuel cell for the objective of reducing ohmic loss, thereby achieving higher power density. Specifically, the dimensions of current collection ribs as well as the rib distribution were optimized to get a maximized power density in a fuel cell. In the modeling process, the power output from a fixed area of membrane is calculated through analysis of an electrical circuit simulating the current from electrochemical reaction flowing to the current collectors. Current collectors of two-dimensional ribs and three-dimensional pillars were considered. Analyses found that three-dimensional pillars allow higher power density in a PEM fuel cell. Considering the mass transfer enhancement effect, three-dimensional pillars as current collectors in gas flow field may be a good choice if the fuel cell operates at low current density and there is no liquid water blocking the flow channels. The analyses did not consider the existence of liquid water, meaning the current density is not very high. The study concluded that decreasing the size of both the current collector and its control area yields a significant benefit to a higher power density. A preliminary experimental test in a PEM fuel cell has verified the conclusion of the analytical work.
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Wear, Eric Otto, and 華立強. "Patterns in the collecting and connoisseurship of Chinese art in Hong Kong and Taiwan." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B43894392.

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Boyd, Louise Anne. "Art, sex, and institutions : defining, collecting, and displaying shunga." Thesis, University of Glasgow, 2016. http://theses.gla.ac.uk/7546/.

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In Edo-Japan (c.1603 – 1868) shunga, sexually explicit prints, paintings and illustrated books, were widely produced and disseminated. However, from the 1850s onwards, shunga was suppressed by the government and it has largely been omitted from art history, excluded from exhibitions and censored in publications. Although changes have taken place, cultural institutions continue to be cautious about what they collect and exhibit, with shunga largely remaining a prohibited subject in Japan. Since the 1970s there has been a gradual increase in the acceptance of shunga outside Japan, as evidenced in the growing number of exhibitions and publications. The initial impetus behind this thesis was: Why and how did shunga become increasingly acceptable in Europe and North America in the twentieth century, whilst conversely becoming unacceptable in post-Edo Japan? I discuss how and why attitudes to shunga in the UK and Japan have changed from the Edo period to the present day, and consider how definitions can affect this. My research examines how shunga has been dealt with in relation to private and institutional collecting and exhibitions. In order to gauge modern responses, the 2013 Shunga: Sex and Pleasure in Japanese Art exhibition at the British Museum is used as an in-depth study – utilising mixed methods and an interdisciplinary approach to analyse curatorial and legal decisions, as well as visitor feedback. To-date there are no official or standardised guidelines for the acquisition, cataloguing, or display of sexually explicit artefacts. It is intended that institutions will benefit from my analysis of the changing perceptions of shunga and of previous shunga collections and exhibitions when dealing with shunga or other sexually explicit items in the future.
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Maclennan, Heather Mary. "Antiquarianism, master prints and aesthetics in the new collecting culture of the early nineteenth century." Thesis, Birkbeck (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325552.

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Cleveland, Larissa. "Collector : collection/possession/persona /." Online version of thesis, 2008. http://hdl.handle.net/1850/6186.

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Herrick, Jason N. R. "Louis Robert de Saint Victor (1738-1822) : a case study on collecting paintings in France from the 1770s to the 1820s with particular reference to Dutch and Flemish art." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365564.

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Books on the topic "Pewter – Collectors and collecting"

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Fahr-Becker, Gabriele. Zinn: Vom Mittelalter bis zur Gegenwart. Gütersloh: Prisma Verlag, 1985.

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Sigrid, Schmidt, and Barnekow Karl-Heinz, eds. Zunftzinn: Formenvielfalt und Gebrauch bei Fest und Alltag des Handwerks. [München]: Klinkhardt & Biermann, 1986.

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Collecting. Mankato, Minnesota: Smart Apple Media, 2016.

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Turner, Silvie. Print collecting. New York, NY: Lyons & Burford, 1996.

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Chapel, Charles Edward. Gun collecting. Birmingham, Ala: Palladium Press, 1998.

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Papi, Stefano. Famous jewelry collectors. London: Thames & Hudson, 1999.

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Papi, Stefano. Famous jewelry collectors. New York: Harry N. Abrams, 1999.

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Castres, Elizabeth De. Collecting silver. London: Bishopsgate Press, 1986.

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Collecting whistles. Atglen, PA: Schiffer Pub., 1995.

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Michael, Gibson, ed. Collecting lustreware. London: Barrie & Jenkins, 1991.

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Book chapters on the topic "Pewter – Collectors and collecting"

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Turnbull, Paul. "‘Judicious Collectors’, 1870–1914." In Science, Museums and Collecting the Indigenous Dead in Colonial Australia, 223–56. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51874-9_8.

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Gadoin, Isabelle. "A New Sociology of Collecting." In Private Collectors of Islamic Art in Late Nineteenth-Century London, 117–53. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003167709-5.

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"Collectors and Collecting." In The Spanish Craze, 231–304. UNP - Nebraska, 2019. http://dx.doi.org/10.2307/j.ctvbtzkpn.10.

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"Collectors and Collecting." In A History of the Western Art Market, 75–78. University of California Press, 2017. http://dx.doi.org/10.1525/9780520340770-020.

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Gosden, Chris, and Chantal Knowles. "The Collectors and their Collections." In Collecting Colonialism, 49–73. Routledge, 2020. http://dx.doi.org/10.4324/9781003084952-3.

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Higbie, Carolyn. "Collectors, Collecting, and Collections." In Collectors, Scholars, and Forgers in the Ancient World, 21–78. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780198759300.003.0002.

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"Introduction: Cult Collectors: Nostalgia, Fandom and Collecting." In Cult Collectors, 13–22. Routledge, 2014. http://dx.doi.org/10.4324/9780203130261-7.

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Lipińska, Aleksandra. "Brothers in collecting." In Early Modern Merchants as Collectors, 169–83. Routledge, 2016. http://dx.doi.org/10.4324/9781315094748-11.

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McGhie, Henry A. "Collecting." In Henry Dresser and Victorian Ornithology. Manchester University Press, 2017. http://dx.doi.org/10.7228/manchester/9781784994136.003.0006.

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This chapter explores the collecting practices of collectors. It discusses the availability of specimens from different sources, including poulterers’ markets, gamekeepers, taxidermists, auctions, dealers and the risk of fraud from commercial dealers. It discusses closed networks among collectors and the importance of correspondence. It establishes how Dresser set up a ‘system of collecting’ with his contemporaries: a collecting network, based on exchanging specimens. The chapter compares his collecting to the ways he conducted business as a merchant. Dresser’s specialities and monopolies of particular species of bird are discussed. It sets out his increasing ambitions in exchanging specimens with museum curators. It also discusses the growth of Henry’s collection through the 1860s as a result of his relationships. It discusses the difference between those who thought of themselves as dealers of specimens, and enthusiasts who exchanged specimens to benefit their collections.
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"Introduction: objects, collectors and representations." In Narrating Objects, Collecting Stories, 17–26. Routledge, 2012. http://dx.doi.org/10.4324/9780203120125-8.

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Conference papers on the topic "Pewter – Collectors and collecting"

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Chen, S. P., P. W. Li, and M. K. Chyu. "Optimization of Gas Delivery and Current Collecting System in Fuel Cells." In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97063.

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The over-potentials in a fuel cell due to ohmic losses and concentration polarization can be reduced if the gas delivery field and the current collection system are well designed. To obtain such a substantial understanding for designing the gas delivery and current collection system, this study proposed a model to theoretically analyze the current collection process, and finally a method and tool of optimization for scales of gas channels and current collection ribs is presented. The analysis found that small current collectors and collection area is advantageous for getting high power density in both PEMFCs and SOFCs.
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Bonadies, Monica F., Son H. Ho, and J. S. Kapat. "Evaluating CFD Modeling of a Thermal Storage Unit." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30692.

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When collecting the energy of the sun for domestic use, there are several options, which include photovoltaic cells and evacuated tube collectors. Arrays of evacuated tube collectors are used to heat water for domestic applications, supplementing the use of a typical hot water heater, while photovoltaic cells transform the sun’s radiation into electricity. The benefit of the tube collectors is that they supplement an appliance that uses a fairly large amount of electricity when compared to others in an average home. However, the collectors cannot operate during the night time and produce more hot water than needed at their peak operation point. A thermal storage unit can be used to even out the conversion of energy throughout the day to solve this problem. This study proposes a system using paraffin wax to store thermal energy collected during the day by melting the wax. The system makes use of a finned heat exchanger, with paraffin wax on the shell side, and glycol on the tube side as the heat transfer fluid. It also includes a separate loop for water to flow through and receive thermal energy from the melted wax. Although the wax used in the study is quite effective at storing thermal energy, it has the problem of low conductivity. So, fins are added to the storage and extraction loops to increase the wax’s thermal conductivity. The fins not only help to melt the wax more quickly but also act as nucleation sites when the wax freezes. Once all the wax is melted, energy can be exchanged from it to heat water. When creating such a unit, it is useful to have simulation tools to guide its design. One such tool is FLUENT, which will be used in this study to create a simulation of part of the unit. The simulation will be compared to experimental data from a prototype unit and evaluated based upon its strengths and weaknesses.
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Foroughi, P., S. Dessiatoun, A. Shooshtari, and M. M. Ohadi. "Experimental Characterization of an EHD Ion-Drag Micropump for Cryogenic Micro-Pumping Applications." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42177.

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This paper presents a study on the characterization of a planar multi-stage electrohydrodynamic (EHD) ion-drag micropump for pumping of liquid nitrogen. Four designs of the pump — consisting of different emitter configurations (planar and saw-tooth), emitter-collector spacings (20 and 50 microns), and gaps between successive electrode pairs (80, 100 and 200 microns) — were tested at DC voltages ranging from 0 to 2.5 kV. The generated electric currents and static pressure heads were measured to characterize the pumping performance. After collecting and processing the data for the various designs, it was evident that the purity of the liquid plays a vital role in the repeatability of the pumping results. In all cases high-purity liquid nitrogen was used. The complex interaction between the liquid and the electrodes along with the probabilistic nature of the ion-generation process sometimes prohibited achieving the same pumping performance under identical voltage levels, thus purity of the nitrogen used was very important. The highest pressure head (30 Pa at 1700 V) was generated with a (50,100,s) design. The (50,100,s) stands for saw-tooth emitters and planar collectors, 50 μm inter-electrode spacing, and 100 μm electrode-pair spacing.
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Eck, Markus, Jan Fabian Feldhoff, and Ralf Uhlig. "Thermal Modelling and Simulation of Parabolic Trough Receiver Tubes." In ASME 2010 4th International Conference on Energy Sustainability. ASMEDC, 2010. http://dx.doi.org/10.1115/es2010-90402.

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Receiver tubes (or heat collecting elements — HCE) are a key component of parabolic trough solar thermal power plants. They are mounted in the focal line of the collectors, absorb the concentrated solar irradiance and transfer the absorbed energy to the heat transfer fluid flowing through them. During the design phase of the receiver tubes and for the performance prediction of solar thermal power plants it is helpful to derive their technical properties, like the thermal losses or the temperature field in the receiver tubes, from their physical and geometrical properties. For this purpose, several models have been developed in the past [1–3]. In this paper, the different existing models are presented, compared and assessed. It is found that a simple analytical model is a helpful tool for the fast prediction of the temperature distribution in the receiver tube. Furthermore, a 2-dimensional and a 3-dimensioanl model are compared regarding the heat losses of a HCE at different operation conditions. Both tools show a good agreement with available measurements. Finally with these tools the efficiency factor F′ is calculated that considers the heat losses of an irradiated receiver compared to that of an un-irradiated receiver. According to the performed calculations, the efficiency factor of parabolic trough receivers is higher than expected.
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5

Bonadies, Monica F., Mark Ricklick, and J. S. Kapat. "Optimization of a Phase Change Thermal Storage Unit." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22984.

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When collecting the energy of the sun for domestic use, several options exist, one being the use of evacuated tube collectors with internal heat pipes. This study proposes a system integrating these collectors with a storage unit using the phase change of paraffin wax to store energy. The storage unit makes use of a finned heat exchanger, with paraffin wax on the shell side and glycol on the tube side as the heat transfer fluid. The heat exchanger is embedded within the storage paraffin wax with a volume of 2 ft3. The heat exchanger also includes a separate loop for water to flow through and receive thermal energy from the melted wax. Although the wax has the benefit of being inexpensive and nontoxic, it has the problem of low thermal conductivity. Therefore, the heat exchanger has large copper fins brazed to it to extend areas of high thermal conductivity into the wax reservoir. The unit used in this study contains 14 fins. The use of fins will help to speed up the melting of the wax while solar energy is collected, since there is more heat transfer area. When most of the wax is melted, heat can be exchanged to water for domestic use. To determine the benefit of the fins, wax and working fluid temperature data will be taken from a constructed thermal energy storage unit, and then it is used to verify a finite-difference analytical model of the thermal operating characteristics. The maximum operating temperature of the glycol/water mix heat transfer fluid was approximately 65° C when the fluid flowed at 1 gallon per minute. The storage unit was able to store melted wax overnight with a 2–3°C temperature drop with the ambient temperature approximately at 30°C. City water at approximately 3 gpm was used to test the freezing side. The one dimensional model proved useful in predicting the heat storage mode of the system but had some error in predicting the heat release mode of the unit. The model also points to the fact that there are several considerations to be taken when simulating phase change energy storage processes.
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