Download or read book Evaporator Performance Investigation for Residential Air conditioning Application Using Mixed Refrigerants written by Maciej Chwalowski and published by . This book was released on 1991 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of the heat exchanger utilizing nonazeotropic refrigerant in an air conditioning application presents unique problems due to the phase change of the moist air and the variable specific heat of the evaporating refrigerant mixture. This study discusses the performance analysis and the design procedure of a cross counterflow heat exchanger working as an evaporator in an experimental system which simulated a residential air conditioning application. The design of the heat exchanger, used for the experimental testing, consisted of several depth rows. Separated banks permitted the determination of the sensible and the latent heat loads for each bank and the heat profiles across the heat exchanger. The interaction between the refrigerant mixture and the moist air was quantified by determining the temperature profiles of both media and the moisture removal rate. The overall heat transfer coefficient for each bank of the heat exchanger was determined from the measured quantities. The effect of the change of the mixture composition on heat exchanger performance was evaluated. The focus of the theoretical study was the development of the effectiveness/NTU (epsilon/NTU) relationships with the use of the experimentally derived quantities for moist air flowing across the heat exchanger. For moist air, the variable mixture specific heat, air and heat profiles obtained from the experimental results were utilized to obtain the expression for epsilon/NTU. The derived epsilon/NTU relations were verified and found to be in good agreement with dry and moist air test results. This study resulted an understanding of an application of a refrigerant mixture working fluid in an evaporator and provided tools to design such a heat exchanger.

Download or read book Publications of the National Institute of Standards and Technology Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1991 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NIST Building Fire Research Laboratory Publications written by and published by . This book was released on 1992 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Building and Fire Research Laboratory Publications written by Building and Fire Research Laboratory (U.S.) and published by . This book was released on 1991 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Performance Degradation of Evaporator for Low Temperature Refrigeration Applications written by Jan Muehlbauer and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Pump and Refrigeration Systems Design Analysis and Applications 1995 written by and published by . This book was released on 1995 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Note 1667 written by U.s. Department of Commerce and published by CreateSpace. This book was released on 2014-03-04 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: A linear fit method of rating residential-type air conditioning systems was evaluated based on performance predictions and laboratory testing of one two-speed matched system and two mixed systems (matched two-speed condensing unit, matched indoor coil blower, and two mixed coil blowers). The individual evaporators and the condensing unit were seperately tested using water heated/cooled condensing/evaporating units over a range of evaporator refrigerant saturation temperatures, evaporator superheats, and liquid refrigerant temperatures.

Download or read book Theoretical Investigation of the Evaporation Heat Transfer Coefficient of Refrigerant R 134a in a Plate Heat Exchanger written by Vincent D. Donowski and published by . This book was released on 1999 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigates analytically the evaporation heat transfer coefficient of refrigerant R-134a flowing in a heat plate exchanger. With the introduction of new HFC refrigerants, these studies are crucial in designing more efficient refrigeration and air conditioning applications.

Download or read book Heat Pump and Refrigeration Systems written by and published by . This book was released on 1995 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heat Transfer in High Technology and Power Engineering written by Wen-Jei Yang and published by CRC Press. This book was released on 1987 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vapor Compression Heat Pumps with Refrigerant Mixtures written by Reinhard Radermacher and published by CRC Press. This book was released on 2005-06-23 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amidst tightening requirements for eliminating CFC's, HCFC's, halons, and HFC's from use in air conditioning and heat pumps, the search began for replacements that are environmentally benign, non-flammable, and similar to the banned refrigerants in system-level behavior. Refrigerant mixtures are increasingly used as working fluids because they demo

Download or read book The Exergy Method of Thermal Plant Analysis written by T. J. Kotas and published by Elsevier. This book was released on 2013-10-22 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Exergy Method of Thermal Plant Analysis aims to discuss the history, related concepts, applications, and development of the Exergy Method - analysis technique that uses the Second Law of Thermodynamics as the basis of evaluation of thermodynamic loss. The book, after an introduction to thermodynamics and its related concepts, covers concepts related to exergy, such as physical and chemical exergy, exergy concepts for a control method and a closed-system analysis, the exergy analysis of simple processes, and the thermocentric applications of exergy. A seven-part appendix is also included. Appendices A-D covers miscellaneous information on exergy, and Appendix E features charts of thermodynamic properties. Appendix F is a glossary of terms, and Appendix G contains the list of references. The text is recommended for physicists who would like to know more about the Exergy Method, its underlying principles, and its applications not only in thermal plant analysis but also in certain areas.

Download or read book AETA 2017 Recent Advances in Electrical Engineering and Related Sciences Theory and Application written by Vo Hoang Duy and published by Springer. This book was released on 2017-11-10 with total page 1086 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings book gathers papers presented at the 4th International Conference on Advanced Engineering Theory and Applications 2017 (AETA 2017), held on 7–9 December 2017 at Ton Duc Thang University, Ho Chi Minh City, Vietnam. It presents selected papers on 13 topical areas, including robotics, control systems, telecommunications, computer science and more. All selected papers represent interesting ideas and collectively provide a state-of-the-art overview. Readers will find intriguing papers on the design and implementation of control algorithms for aerial and underwater robots, for mechanical systems, efficient protocols for vehicular ad hoc networks, motor control, image and signal processing, energy saving, optimization methods in various fields of electrical engineering, and others. The book also offers a valuable resource for practitioners who want to apply the content discussed to solve real-life problems in their challenging applications. It also addresses common and related subjects in modern electric, electronic and related technologies. As such, it will benefit all scientists and engineers working in the above-mentioned fields of application.

Download or read book Federal Register written by and published by . This book was released on 1986-10 with total page 1546 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Program details written by Rohr Industries, Inc and published by . This book was released on 1973 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 4th International Conference on Electrical Engineering and Control Applications written by Sofiane Bououden and published by Springer Nature. This book was released on 2020-09-29 with total page 1257 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers papers presented during the 4th International Conference on Electrical Engineering and Control Applications. It covers new control system models, troubleshooting tips and complex system requirements, such as increased speed, precision and remote capabilities. Additionally, the papers discuss not only the engineering aspects of signal processing and various practical issues in the broad field of information transmission, but also novel technologies for communication networks and modern antenna design. This book is intended for researchers, engineers and advanced postgraduate students in the fields of control and electrical engineering, computer science and signal processing, as well as mechanical and chemical engineering.

Download or read book Advanced Energy Efficiency Technologies for Solar Heating Cooling and Power Generation written by Xudong Zhao and published by Springer. This book was released on 2019-07-08 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, based on the research experience and outcomes of a group of international contributors, addresses a range of advanced energy efficiency technologies and their applications in solar heating, cooling and power generation, while also providing solutions for tackling recurring low efficiency problems in today’s systems. It highlights the latest technologies and methods, which can significantly improve the performance of solar systems, enabling readers to design, construct and apply high-performance solar systems in or for their own projects. The contributors provide a systematic introduction to state-of-the-art energy efficiency technologies that demonstrates how to implement innovative solar systems. These technologies include: • heat pipes and loop heat pipes; • phase change materials (PCMs) and PCM slurries; • micro-channel panels; • desiccant/adsorption cycling; • ejector cooling and heat pumps; and • solar concentration and thermoelectric units. The book shows how innovative solar systems applicable to rural and urban buildings can be analysed and demonstrates the successful implementation of these advanced technologies. It delivers the design principles and associated energy performance assessment methods for a range of selected solar heating, cooling and power generation projects. This book offers a valuable source of information for final-year undergraduate students, as well as graduate students and academic lecturers, as it promotes the widespread deployment of advanced solar heating, cooling and power generation technologies applicable for buildings across the globe. The book is also a good point of reference for design engineers and energy consultants who wish to extend their knowledge of advanced technologies used to achieve energy efficiency.