An Experimental Study of the Size Effect in Pool Boiling Critical Heat Flux on Square Surfaces PDF Download
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Author: John Richard Saylor
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 184
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Book Description
Author: John Richard Saylor
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 184
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Book Description
Author: Young I. Cho
Publisher: Academic Press
ISBN: 0123815304
Category : Science
Languages : en
Pages : 459
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Book Description
Advances in Heat Transfer fills the information gap between regularly scheduled journals and university-level textbooks by providing in-depth review articles over a broader scope than in journals or texts. The articles, which serve as a broad review for experts in the field, will also be of great interest to non-specialists who need to keep up-to-date with the results of the latest research. This serial is essential reading for all mechanical, chemical and industrial engineers working in the field of heat transfer, graduate schools or industry. - Provides an overview of review articles on topics of current interest - Bridges the gap between academic researchers and practitioners in industry - A long-running and prestigious series
Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 1461534747
Category : Science
Languages : en
Pages : 421
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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 34 (thesis year 1989) a total of 13,377 theses titles from 26 Canadian and 184 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 34 reports theses submitted in 1989, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Author: Abhay Ashok Watwe
Publisher:
ISBN:
Category :
Languages : en
Pages : 504
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Book Description
Author: S.G. Kandlikar
Publisher: Routledge
ISBN: 1351442198
Category : Science
Languages : en
Pages : 786
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Book Description
Provides a comprehensive coverage of the basic phenomena. It contains twenty-five chapters which cover different aspects of boiling and condensation. First the specific topic or phenomenon is described, followed by a brief survey of previous work, a phenomenological model based on current understanding, and finally a set of recommended design equa
Author: Jim Mills Adams
Publisher:
ISBN:
Category : Ebullition
Languages : en
Pages : 328
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Book Description
Author: N. Zuber
Publisher:
ISBN:
Category : Heat
Languages : en
Pages : 216
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Book Description
Author: Seung Mun You
Publisher:
ISBN:
Category :
Languages : en
Pages : 670
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Book Description
Author: Mehmet Arik
Publisher:
ISBN:
Category :
Languages : en
Pages : 462
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Book Description
Author: Zhenyu She
Publisher:
ISBN:
Category :
Languages : en
Pages : 186
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Book Description
Nucleate boiling is ubiquitous from daily lives to engineering applications, and the increasing demand for efficient heat transfer in the industry requires further understanding of it, especially on small scales where the knowledge on conventional scales may no longer apply. This study investigated the effects of heater size, contact angle, surrounding vessel size, and surface structure on nucleate boiling heat transfer occurring on horizontal flat surfaces where the heater size is comparable to the two-dimensional ''most dangerous'' Taylor wavelength, aiming to comprehend the parametric effects on nucleate boiling heat flux and critical heat flux (CHF) and revisit the hydrodynamic theory near critical condition. Saturated water at one-atmosphere pressure was boiled on horizontal flat copper discs of diameters 1.0, 1.5, and 2.0 cm, respectively. The contact angle was varied from about 10 to 80 deg by controlling thermal oxidation of the discs, while the surrounding vessel size was changed by placing glass tubes of different inner diameters around the discs. The surface structure in the form of microgrooves was fabricated by sanding the disc top surface. Boiling heat transfer data were obtained up to CHF. Boiling curves and CHFs measured under different experimental configurations were compared in terms of each parameter. Rohsenow's correlation was employed to assess the parametric effects on nucleate boiling heat flux quantitatively. Vapor removal patterns were photographed in nucleate boiling regime and near CHF. Vapor jet diameter and the dominant wavelength at water-steam interface were measured from the photographs for the well wetted discs and used to predict the corresponding CHF based on the hydrodynamic theory. For well wetted surfaces, the boiling curve was insensitive to the heater size, but the CHF increased when the heater size was reduced from 2.0 to 1.0 cm. Improving the wettability delayed the onset of nucleate boiling and shifted the boiling curve to the right while enhancing the CHF substantially. Enlarging the liquid-holding vessel hardly affected the boiling curve at low heat fluxes but improved the CHF slightly. The structured surface featured higher nucleate boiling heat flux resulting from more active nucleation sites but showed no advantage in CHF over the plain surface of similar size and contact angle. In this study, the highest measured CHFs for plain and structured surfaces are close and both about 2.1 times Zuber's CHF prediction for infinite horizontal flat plates. They were obtained on well wetted 1.0-cm-diameter discs surrounded by large vessels.
