Vapor Compression Heat Pumps With Refrigerant Mixture
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Author | : Reinhard Radermacher |
Publisher | : CRC Press |
Total Pages | : 300 |
Release | : 2005-06-23 |
Genre | : Technology & Engineering |
ISBN | : 1000611272 |
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
Author | : Reinhard Radermacher |
Publisher | : |
Total Pages | : |
Release | : 2000 |
Genre | : |
ISBN | : |
Author | : Reinhard Radermacher |
Publisher | : CRC Press |
Total Pages | : 328 |
Release | : 2005-06-23 |
Genre | : Technology & Engineering |
ISBN | : 1420037579 |
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
Author | : Shahrzad Pourezza Djourshari |
Publisher | : |
Total Pages | : 348 |
Release | : 1986 |
Genre | : |
ISBN | : |
Author | : Georg Alefeld |
Publisher | : CRC Press |
Total Pages | : 310 |
Release | : 1993-09-09 |
Genre | : Science |
ISBN | : 9780849389283 |
Heat Conversion Systems develops the underlying concepts of advanced Rankine-based absorption and compression cycles and introduces the Building Block Approach as a general concept. The Building Block Approach identifies all cycle configurations for a given application to ensure that system designers have available all important alternatives. The book features numerous examples of advanced cycles and includes single- and multi-stage absorption heat pumps and heat transformers and combined systems. The book also discusses single- and multi-stage vapor compression systems with multiple solution circuits, multiple compressors, and cascades. Aspects of working fluid selection and their influence on cycle options, performance evaluation, and estimating procedures for the Coefficient of Performance (COP) are addressed. Cycle analysis based on the Second Laws of Thermodynamics is examined. Heat Conversion Systems will be an important source for engineers in air-conditioning, heat pumping, refrigeration, and waste heat utilization. It can be used as text in courses on thermodynamics, efficient use of energy, and environmental protection.
Author | : G F Hundy |
Publisher | : Butterworth-Heinemann |
Total Pages | : 512 |
Release | : 2016-03-07 |
Genre | : Science |
ISBN | : 0081006667 |
Refrigeration, Air Conditioning and Heat Pumps, Fifth Edition, provides a comprehensive introduction to the principles and practice of refrigeration. Clear and comprehensive, it is suitable for both trainee and professional HVAC engineers, with a straightforward approach that also helps inexperienced readers gain a comprehensive introduction to the fundamentals of the technology. With its concise style and broad scope, the book covers most of the equipment and applications professionals will encounter. The simplicity of the descriptions helps users understand, specify, commission, use, and maintain these systems. It is a must-have text for anyone who needs thorough, foundational information on refrigeration and air conditioning, but without textbook pedagogy. It includes detailed technicalities or product-specific information. New material to this edition includes the latest developments in refrigerants and lubricants, together with updated information on compressors, heat exchangers, liquid chillers, electronic expansion valves, controls, and cold storage. In addition, efficiency, environmental impact, split systems, retail refrigeration (supermarket systems and cold rooms), industrial systems, fans, air infiltration, and noise are also included. Full theoretical and practical treatment of current issues and trends in refrigeration and air conditioning technology Meets the needs of industry practitioners and system designers who need a rigorous, but accessible reference to the latest developments in refrigeration and AC that is supported by coverage at a level not found in typical course textbooks New edition features updated content on refrigerants, microchannel technology, noise, condensers, data centers, and electronic control
Author | : Peter I. Rothfleisch |
Publisher | : |
Total Pages | : 49 |
Release | : 1991 |
Genre | : Heat pumps |
ISBN | : |
The performance of an innovative heat pump, equipped with a distillation column to shift the composition of a zeotropic refrigerant mixture, was evaluated. The results of the DoE rating tests and seasonal energy calculations are reported with the main cycle refrigerant compositions. No composition shifting of the circulating refrigerant mixture was observed. To demonstrate the potential value of composition shifting, an ideal vapor compression cycle computer program was used to predict what the system performance would have been had composition shifting occurred. Seasonal energy usage calculations based on the computer predictions demonstrated that the effect of composition shifting on HSPF was very small, increasing slightly with climate zone. However, the savings in auxiliary heat was found to be substantial. In cooling mode, computer predictions showed pure R22 to have a SEER approximately two percent higher than a mixture of 20% R13B1 and 80% R22 by weight.
Author | : Vasile Minea |
Publisher | : CRC Press |
Total Pages | : 705 |
Release | : 2018-08-06 |
Genre | : Science |
ISBN | : 0429874065 |
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.
Author | : Vasile Minea |
Publisher | : CRC Press |
Total Pages | : 350 |
Release | : 2024-06-03 |
Genre | : Science |
ISBN | : 104002632X |
Heat Recovery with Commercial, Institutional, and Industrial Heat Pumps presents the basic concepts and thermodynamic behavior of mechanical vapor compression and recompression. It covers both ammonia water absorption and compression/resorption heat pumps. Including theoretical and practical approaches, the book features numerous solved exercises based on real thermodynamic and climatic parameters and case studies with takeaways from on-site experiences to help the reader better identify the advantages and limitations of each heat pumping technology. The book discusses future implementations of heat recovery heat pump technologies that are among the most energy-efficient and environmentally friendly techniques. This book will interest graduate students studying HVAC, thermal systems, and heat pumps. It will also benefit professionals working with heat pumps, industrial process engineers, manufacturers, and research and design personnel.
Author | : Anton A. Kiss |
Publisher | : CRC Press |
Total Pages | : 525 |
Release | : 2016-10-14 |
Genre | : Science |
ISBN | : 1498719031 |
As the chemical process industry is among the most energy demanding sectors, chemical engineers are endeavoring to contribute towards sustainable future. Due to the limitation of fossil fuels, the need for energy independence, as well as the environmental problem of the greenhouse gas effect, there is a large increasing interest in the research and development of chemical processes that require less capital investment and reduced operating costs and lead to high eco-efficiency. The use of heat pumps is a hot topic due to many advantages, such as low energy requirements as well as an increasing number of industrial applications. Therefore, in the current book, authors are focusing on use of heat pumps in the chemical industry, providing an overview of heat pump technology as applied in the chemical process industry, covering both theoretical and practical aspects: working principle, applied thermodynamics, theoretical background, numerical examples and case studies, as well as practical applications. The worked-out examples have been included to instruct students, engineers and process designers about how to design various heat pumps used in the industry. Reader friendly resources namely relevant equations, diagrams, figures and references that reflect the current and upcoming heat pump technologies, will be of great help to all readers from the chemical and petrochemical industry, biorefineries and other related areas.