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Empirical Study Of New Refrigerant Flow Condensation Inside Horizontal Smooth And Micro Fin Tubes
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Book Synopsis Empirical Study of New Refrigerant Flow Condensation Inside Horizontal Smooth and Micro-fin Tubes by : Liangyou Tang
Download or read book Empirical Study of New Refrigerant Flow Condensation Inside Horizontal Smooth and Micro-fin Tubes written by Liangyou Tang and published by . This book was released on 1997 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Condensation Heat Transfer in Horizontal Micro-fin Tubes by : Chea-Chun Kung
Download or read book Condensation Heat Transfer in Horizontal Micro-fin Tubes written by Chea-Chun Kung and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Three existing condensation heat transfer models are validated using 544 experimental data points for pure refrigerants and refrigerant mixtures. The Cavallini et al. (1999) model predicts well with the pure-refrigerant data sets. However, the Cavallini et al. (1999) model fails to predict the refrigerant-mixture data sets. The Yu and Koyama (1998) model, which is applicable for the pure refrigerants only, fails to predict most of the R22 data sets. The Kedzierski and Goncalves (1999) model, which is applicable for both pure refrigerants and refrigerant mixtures, yields relatively high mean absolute deviations for most of the pure-refrigerant data sets. The Kedzierski and Goncalves (1999) model does not account for the mass transfer thermal resistance in refrigerant mixtures. A new pure-refrigerant model and a new refrigerant-mixture semi-empirical model have been developed. Both the new models successfully predict the experimental data for pure refrigerant and for refrigerant mixtures.
Book Synopsis Condensation Heat Transfer in Horizontal Micro-fin Tubes by :
Download or read book Condensation Heat Transfer in Horizontal Micro-fin Tubes written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Three existing condensation heat transfer models are validated using 544 experimental data points for pure refrigerants and refrigerant mixtures. The Cavallini et al. (1999) model predicts well with the pure-refrigerant data sets. However, the Cavallini et al. (1999) model fails to predict the refrigerant-mixture data sets. The Yu and Koyama (1998) model, which is applicable for the pure refrigerants only, fails to predict most of the R22 data sets. The Kedzierski and Goncalves (1999) model, which is applicable for both pure refrigerants and refrigerant mixtures, yields relatively high mean absolute deviations for most of the pure-refrigerant data sets. The Kedzierski and Goncalves (1999) model does not account for the mass transfer thermal resistance in refrigerant mixtures. A new pure-refrigerant model and a new refrigerant-mixture semi-empirical model have been developed. Both the new models successfully predict the experimental data for pure refrigerant and for refrigerant mixtures.
Book Synopsis Condensation of a New Alternative Refrigerant Flowing Inside Horizontal Smooth Tubes by : Mallikarjuna S. Chitti
Download or read book Condensation of a New Alternative Refrigerant Flowing Inside Horizontal Smooth Tubes written by Mallikarjuna S. Chitti and published by . This book was released on 1994 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heat Transfer and Fluid Flow in Minichannels and Microchannels by : Satish Kandlikar
Download or read book Heat Transfer and Fluid Flow in Minichannels and Microchannels written by Satish Kandlikar and published by Elsevier. This book was released on 2006 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: &Quot;This book explores flow through passages with hydraulic diameters from about 1 [mu]m to 3 mm, covering the range of minichannels and microchannels. Design equations along with solved examples and practice problems are also included to serve the needs of practicing engineers and students in a graduate course."--BOOK JACKET.
Book Synopsis Industrial Heat Pump-Assisted Wood Drying by : Vasile Minea
Download or read book Industrial Heat Pump-Assisted Wood Drying written by Vasile Minea and published by CRC Press. This book was released on 2018-08-06 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses conventional as well as unconventional wood drying technologies. It covers fundamental thermophysical and energetic aspects and integrates two complex thermodynamic systems, conventional kilns and heat pumps, aimed at improving the energy performance of dryers and the final quality of dried lumber. It discusses advanced components, kiln energy requirements, modeling, and software and emphasizes dryer/heat pump optimum coupling, control, and energy efficiency. Problems are included in most chapters as practical, numerical examples for process and system/components calculation and design. The book presents promising advancements and R&D challenges and future requirements.
Book Synopsis A Review on Condensation Process of Refrigerants in Horizontal Microfin Tubes by : Thanh Nhan Phan
Download or read book A Review on Condensation Process of Refrigerants in Horizontal Microfin Tubes written by Thanh Nhan Phan and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat transfer performance of refrigerant on the condensation process is very important in the designing of condensation equipment, especially in air conditioning and refrigeration systems. The outstanding advantages of microfin tubes are reducing the weight and size of condensers and also reducing the amount of refrigerant on the system. Reviewing the general concept of condensation and detailing the formation of flow pattern map that is also the procedure to determine heat transfer coefficient and pressure drop during condensation process of refrigerant inside the horizontal microfin tubes would be considered. Also, a typical example will be presented to illustrate a detailed procedure to calculate the value of heat transfer coefficient and pressure drop during the condensation process in horizontal microfin tubes. The data results show that microfin tube J60 with 60 number of fins inside 8.96 mm inner diameter, 0.2 mm height of fin, 40o of apex angle and 18o of helix angle, the condensation procedure of R1234ze at 35°C, heat flux of 8.62 kW/m2, and mass flux of 222 kg/m2s that could be estimated with heat transfer coefficient would be reduced from 8160.4 [W/m2 K] to 1413.8 [W/m2 K] follow with quality x changes from 0.99 to 0.01, and the maximum pressure drop of this process is 3173.8 [Pa/m].
Book Synopsis The Principles and Practice of Heat Transfer by : Ali H. Tarrad
Download or read book The Principles and Practice of Heat Transfer written by Ali H. Tarrad and published by Cambridge Scholars Publishing. This book was released on 2022-12-21 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: The imminent need to mitigate the global warming potential (GWP) and the impact of the ozone depletion potential (ODP) demand seeking more efficient uses of energy, new energy sources, and new technologies. Heat transfer plays a vital role in efficient power production with minimum investment, installation, and maintenance costs. This book deals with issues related to efficiently utilizing available energy by integrating the technology of heat exchangers into power production units. Further, it provides detailed descriptions of heat transfer applications commonly used in modern everyday life and industrial contexts, supported by practical and worked-out examples presented to facilitate learning.
Book Synopsis Evaporation and Condensation Heat Transfer and Pressure Drop in Horizontal, 12.7-mm Micro-fin Tubes with Refrigerant 22 by : L. M. Schlager
Download or read book Evaporation and Condensation Heat Transfer and Pressure Drop in Horizontal, 12.7-mm Micro-fin Tubes with Refrigerant 22 written by L. M. Schlager and published by . This book was released on 1989 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heat Transfer Performance During In-tube Condensation in Horizontal Smooth, Micro-fin and Herringbone Tubes by : Adriaan Lambrechts
Download or read book Heat Transfer Performance During In-tube Condensation in Horizontal Smooth, Micro-fin and Herringbone Tubes written by Adriaan Lambrechts and published by . This book was released on 2003 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Society of Mechanical Engineers. Advanced Energy Systems Division Publisher : ISBN 13 : Total Pages :640 pages Book Rating :4.3/5 (91 download)
Book Synopsis Proceedings of the ASME Advanced Energy Systems Division by : American Society of Mechanical Engineers. Advanced Energy Systems Division
Download or read book Proceedings of the ASME Advanced Energy Systems Division written by American Society of Mechanical Engineers. Advanced Energy Systems Division and published by . This book was released on 2000 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Condensation of Hfc-134a and Hfc-404a in a Smooth and Micro-Fin Tube by : Pradeep Patil
Download or read book Condensation of Hfc-134a and Hfc-404a in a Smooth and Micro-Fin Tube written by Pradeep Patil and published by LAP Lambert Academic Publishing. This book was released on 2011-03 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this work was to study the condensation heat transfer and pressure drop characteristics ofHFC-134a in a micro-fined tube with an 18 degree helix angle and to compare them to those in a smooth tube for various operating conditions.The experimental test facility is designed, developed and is used to determine the condensation HTC and pressure drop in smooth and micro-fin tubes for various HFC refrigerants namely HFC-134a, R-404A, R-407C, R-507A. The experimentation covers wide range of operating parameters such as mass flux and condensing temperatures. The instrumentations used for measurements are calibrated from recognized calibration centres. The hermetically sealed compressor is used for circulating refrigerant; effect of oil present in the refrigerant during condensation is also taken into account. The condensation of HFC-134a and R-404A in smooth and micro-fin tubes are measured and obtained the values of condensation HTCs and pressure drops for different mass flux and condensing temperatures
Book Synopsis Proceedings of the ASME Heat Transfer Division--2000 by : Jong H. Kim
Download or read book Proceedings of the ASME Heat Transfer Division--2000 written by Jong H. Kim and published by . This book was released on 2000 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical papers from the November 2000 ASME Heat Transfer Division congress and exposition comprise 31 sessions, including transport phenomena in fuel cell systems, radiation heat transfer in energy systems, heat transfer in microgravity systems, cryogenic heat transfer, innovative heat transfer vi
Book Synopsis Horizontal Convective Condensation of Alternative Refrigerants Within a Micro-Fin Tube (Classic Reprint) by : Mark a Kedzierski
Download or read book Horizontal Convective Condensation of Alternative Refrigerants Within a Micro-Fin Tube (Classic Reprint) written by Mark a Kedzierski and published by Forgotten Books. This book was released on 2017-10-28 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Horizontal Convective Condensation of Alternative Refrigerants Within a Micro-Fin Tube As shown in Fig. 3, six refrigerant pressure taps along the test section allowed the measurement of the upstream absolute pressure and five pressure drops along the test section. Two sets of two water pressure taps were used to measure the water pressure drop along each tube. Also, a sheathed thermocouple measured the refrigerant temperature at each end of the two refrigerant tubes, with the junction of each centered radially. Only the thermocouple at the inlet of the first tube was used in the calculations. Theentire test section was wrapped with 5 cm of foam insulation to minimize heat transfer between the water and the ambient. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis A Review on Convective Boiling Heat Transfer of Refrigerants in Horizontal Microfin-Tubes by : Thanh Nhan Phan
Download or read book A Review on Convective Boiling Heat Transfer of Refrigerants in Horizontal Microfin-Tubes written by Thanh Nhan Phan and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the Heat transfer performance of refrigerant for convective boiling in horizontal microfin tube and smooth tube is place an importance role on the designing of evaporator, the main equipment on refrigeration system. Reviewing the general concept especially the theory of boiling in the tube, the formation of the flow pattern map, the calculating procedure for heat transfer coefficient and pressure drop during boiling process of refrigerant in microfin tube. Besides, a typical example will be presented more detail in step by step to define the heat transfer coefficient and pressure drop for one working condition to estimate the data results without doing experiments.
Download or read book Heat Transfer written by Salim Newaz Kazi and published by BoD – Books on Demand. This book was released on 2023-02 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the fundamentals, enhancements, applications, and modeling of heat transfer phenomena. Topics covered include heat transfer equations and applications in the estimation of heat energy transportation, heat transfer in specific applications, microchannel flow, condensation of refrigerants in modified heat exchanger tubes, alteration of tube surface texture for augmentation of heat transfer, boiling, etc. Also considered are fouling mitigation approaches to prolong heat exchanger operation, as well as tube coatings, heat exchanger digital twins, and various surface alteration techniques. Double-pass solar air heating and phenomena including heat transfer through thin liquid film and surface texture alteration for boiling heat transfer are discussed.
Book Synopsis Proceedings of the ASME Heat Transfer Division by :
Download or read book Proceedings of the ASME Heat Transfer Division written by and published by . This book was released on 2005 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt:
