Download or read book Analysis of Ice Formation with Flow Reversal for Application to an Ice maker Heat Pump written by Salvador M. Aceves and published by . This book was released on 1986 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problems of freezing and melting present special mathematical complexity and, except for the most elementary one-dimensional cases, require a numerical solution. However, these problems have a growing importance in engineering problems because of their application to metallurgical operations, food preservation, heating and air conditioning, etc. In the present work, a numerical model for ice formation from flowing water in a finned annular sector is developed. The model predicts ice profiles as a function of axial position and time, and energy transfer values as a function of time. The model also allows flow direction reversals in the annular sector. The flow reversal melts part of the ice existing in the annulus. Also, part of the ice detaches, allowing it to flow out with the liquid water. This enhances the energy transfer values. The model uses an arbitrary criterion for melting and detaching. The model is used for a preliminary evaluation of an ice-maker heat pump evaporator operating with flow reversal. Flow reversal de-ices the evaporator surfaces and enhances the heat transfer. Therefore, the flow reversal method is suggested as an alternative for de-icing without the losses commonly associated with the methods currently used to accomplish this. The results of the preliminary evaporator evaluation show a large energy transfer gain for the reversal case, as compared to the energy transfer obtained without reversal. Most of the gain comes from an increased cooling of the liquid water (more sensible energy from the water is being transferred to the refrigerant). The model predicts only a small amount of ice detachment from the evaporator. Further study in this area is recommended for completing the evaluation of the evaporator. A better ice melting-detaching criterion and a more complete parametric evaluation of the evaporator are required.
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer. This book was released on 1990-01-31 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 1 957, 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 32 (thesis year 1987) a total of 12,483 theses titles from 22 Canadian and 176 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 32 reports theses submitted in 1987, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Download or read book Host Bibliographic Record for Boundwith Item Barcode 30112050443578 and Others written by and published by . This book was released on 2013 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1993 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Transfer Science and Technology 1988 written by Buxuan Wang and published by Taylor & Francis. This book was released on 1989 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the proceedings of the Second International Symposium on Heat Transfer (ISHT) Beijing, and reflects the importance of an international exchange of new ideas, and new achievements in the expanding field of heat transfer in the past three years.
Download or read book Cold Storage and Ice Trades Review written by and published by . This book was released on 1927 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASHRAE Handbook Product Directory written by American Society of Heating, Refrigerating and Air-Conditioning Engineers and published by . This book was released on 1973 with total page 1196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sucrose written by M. Mathlouthi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an up-to-date overview of the economic, chemical, physical, analytical and engineering aspects of the subject, gathering together information which would otherwise be scattered over a wide variety of sources.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1982 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy written by and published by . This book was released on 1978 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Download or read book Management of Legionella in Water Systems written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-02-20 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Legionnaires' disease, a pneumonia caused by the Legionella bacterium, is the leading cause of reported waterborne disease outbreaks in the United States. Legionella occur naturally in water from many different environmental sources, but grow rapidly in the warm, stagnant conditions that can be found in engineered water systems such as cooling towers, building plumbing, and hot tubs. Humans are primarily exposed to Legionella through inhalation of contaminated aerosols into the respiratory system. Legionnaires' disease can be fatal, with between 3 and 33 percent of Legionella infections leading to death, and studies show the incidence of Legionnaires' disease in the United States increased five-fold from 2000 to 2017. Management of Legionella in Water Systems reviews the state of science on Legionella contamination of water systems, specifically the ecology and diagnosis. This report explores the process of transmission via water systems, quantification, prevention and control, and policy and training issues that affect the incidence of Legionnaires' disease. It also analyzes existing knowledge gaps and recommends research priorities moving forward.
Download or read book Power and the Engineer written by and published by . This book was released on 1919 with total page 1138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific American written by and published by . This book was released on 1884 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1982 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
