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Author : Van D. Baxter
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.3/5 ( download)
Download or read book Ice-maker Heat Pump Development written by Van D. Baxter and published by . This book was released on 1980 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. C. Fischer
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (238 download)
Download or read book The Development of the Ice-maker Heat Pump written by H. C. Fischer and published by . This book was released on 1976 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mason H. Somerville
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (141 download)
Download or read book The Development of an Air-icemaker Multiple Source Heat Pump System written by Mason H. Somerville and published by . This book was released on 1980 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. C. Fischer
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 ( download)
Download or read book Development and Testing of a Single-plate and a Two-plate Ice-maker Heat Pump written by H. C. Fischer and published by . This book was released on 1978 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : V. D. Baxter
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.3/5 ( download)
Download or read book Intermediate Report on the Performance of Plate-type Ice-maker Heat Pumps written by V. D. Baxter and published by . This book was released on 1978 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Testing of a Single-plate and a Two-plate Ice-maker Heat Pump written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James M. Calm
Publisher :
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.:/5 (31 download)
Download or read book Heat-pump-centered Integrated Community Energy Systems: System Development Assessment written by James M. Calm and published by . This book was released on 1981 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : SED Systems Ltd
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (353 download)
Download or read book Ice Maker Heat Pump Systems written by SED Systems Ltd and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mason H. Somerville
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (141 download)
Download or read book The Design and Development of a Split Evaporator Heat Pump System written by Mason H. Somerville and published by . This book was released on 1981 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intermediate Report on the Performance of Plate-type Ice-maker Heat Pumps written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A prototype ice-maker heat pump obtained from Remcor Products Company and a two-plate unit developed at Oak Ridge National Laboratory were tested under the Annual Cycle Energy System program. Results were compared for the effect of harvesting scheme and evaporator plate loading on performance in both water-chilling and ice-making modes. The Remcor scheme of using compressor discharge gas for harvesting exacts a heavy penalty on performance during short freeze cycles, whereas the two-plate unit utilizing a no-penalty harvest scheme experiences no such penalty. However, the lower plate loading of the Remcor gives it a performance advantage over the two-plate unit in water chilling and allows it to operate on a longer freezing cycle before suffering performance penalties due to ice buildup. This latter effect allows the Remcor to overcome its harvest penalty and to achieve a slightly higher maximum coefficient of performance in the ice-making mode than does the two-plate unit. Accordingly, it is concluded that a combination of no-penalty harvest and low plate loading should provide a more optimum performance level for ice-maker heat pumps. Cyclic operation, typical of domestic space conditioning operation, of the two-plate unit revealed significant performance loss due to interrupted compressor operation. The possibility of improving operation and reliability by combining thermostatic cycles with harvesting cycles is discussed and a possible scheme presented.
Author : SED Systems Ltd
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (354 download)
Download or read book Ice Maker Heat Pump Systems written by SED Systems Ltd and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of the Ice-maker Heat Pump to an Annual Cycle Energy System written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The high energy efficiency of the ice-maker heat pump makes it especially suitable and attractive for application to Annual Cycle Energy Systems (ACES). Design parameters and typical operating characteristics of the ice-maker heat pump are presented and discussed. An economic analysis indicates that the ice-maker heat pump is capable of supplying space heating to buildings at an operating cost of about $4.65/million Btu ($4.41/GJ) of heat delivered at the register. The corresponding operating costs for heat delivery by systems with an air-to-air heat pump, an oil-fired furnace, a gas-fired furnace, and electric resistance heating are: $5.86, $6.30, $6.26, and $11.72 per million Btu, respectively. The cost of supplying domestic hot water by means of an ice-maker heat pump is estimated and the storage of ice for later use as a cooling medium is investigated. Ice storage as a means of saving both money and fuel is analyzed on the basis of daily, weekly, and annual cycles. Particular attention is being given to the design and construction of cost-effective storage bins.
Author : Salvador M. Aceves
Publisher :
ISBN 13 :
Total Pages : 386 pages
Book Rating : 4.:/5 (221 download)
Download or read book Evaporator Analysis for Application to Water-source and Ice-maker Heat Pumps written by Salvador M. Aceves and published by . This book was released on 1989 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water-source and ice-maker heat pumps share many characteristics. However, each presents different technical difficulties that have prevented them from being used more widely. In a water-source heat pump a very important consideration is to reduce water consumption, while in an ice-maker heat pump a major concern is to reduce the number of deicing cycles while keeping a high performance. Previous research by this author has indicated that the use of the flow reversal method (reversing periodically the water flow direction in the evaporator) has the effect of partly deicing the evaporator, reducing pressure drop and enhancing heat transfer. This thesis shows the development and application of analytical and numerical models to study the effect of different evaporator parameters on heat pump efficiency, as well as the possible advantages of using the flow reversal method in a water-source or ice-maker heat pump. The conclusion reached from these studies is that periodic water flow reversals inside an evaporator with freezing help improve the performance of a heat pump system in two different ways. First, periodic water flow direction reversals serve to enhance heat transfer in the evaporator. Second, reversing the water flow direction also delays ice blockage in the evaporator, or totally prevents blockage from happening. Delaying ice blockage represents a substantial improvement for ice-maker heat pumps, since these may then operate for a longer time without deicing. Preventing ice blockage represents a substantial improvement for water-source heat pumps, since these may then operate at lower water flow rates. Suggestions for future work include further testing of the flow reversal method for different evaporator geometries, as well as an experimental evaluation of the flow reversal method.
Author :
Publisher :
ISBN 13 :
Total Pages : 1148 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles Nzila
Publisher : CRC Press
ISBN 13 : 1000521060
Total Pages : 340 pages
Book Rating : 4.0/5 (5 download)
Download or read book Advances in Phytochemistry, Textile and Renewable Energy Research for Industrial Growth written by Charles Nzila and published by CRC Press. This book was released on 2022-04-07 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Phytochemistry, Textile, & Renewable Energy Technologies for Sustainable Development (ICPTRE 2020) was hosted by the World bank funded Africa Centre of Excellence in Phytochemicals, Textile and Renewable Energy (ACEII-PTRE) based at Moi University in conjunction with Donghua University, China and the Sino–Africa International Symposium on Textiles and Apparel (SAISTA). The theme of the conference was Advancing Science, Technology and Innovation for Industrial Growth. The research relationships between universities and industry have enabled the two entities to flourish and, in the past, have been credited for accelerated sustainable development and uplifting of millions out poverty. ICPTRE 2020 therefore provided a platform for academic researchers drawn from across the world to meet key industry professionals and actively share knowledge while advancing the role of research in industrial development, particularly, in the developing nations. The conference also provided exhibitors with an opportunity to interact with professionals and showcase their business, products, technologies and equipment. During the course of the conference, industrial exhibitions, research papers and presentations in the fields of phytochemistry, textiles, renewable energy, industry, science, technology, innovations and much more were presented.
Author : Carroll Gantz
Publisher : McFarland
ISBN 13 : 1476619697
Total Pages : 279 pages
Book Rating : 4.4/5 (766 download)
Download or read book Refrigeration written by Carroll Gantz and published by McFarland. This book was released on 2015-07-04 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: For thousands of years, humans coped with heat by harvesting and storing natural ice and devising natural cooling systems that utilized ventilation and evaporation. By the mid 1800s, people began developing huge refrigeration machines to manufacture ice. By the early 1900s, engineers developed electric domestic refrigerators, which by 1927 were affordable convenient household appliances. By then, an increasingly sophisticated public demanded more modern-looking appliances than engineers could produce, and a new breed of designers entered the manufacturing world to provide them. During the Depression, modern designs not only increased sales but resulted in the kitchen appliances we now use. Today refrigeration preserves perishable food for worldwide distribution, makes tropical climates habitable for millions, saves lives with medical applications and enables space flight.
Author : Salvador M. Aceves
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (159 download)
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.
