Alternatives in Refrigeration and Air Conditioning highlights the issues related to ozone layer depletion and global warming due to use of conventional cooling technologies and refrigerants in the field of Refrigeration and Air Conditioning (RAC). It describes, simulates and analyzes the alternate technologies and alternate refrigerants from energy and exergy point of view. The unconventional and alternative refrigeration technologies viz. Vapor Absorption Refrigeration, Vapor Adsorption Refrigeration, Evaporative Cooling, Desiccant Cooling, Thermoelectric Refrigeration, Thermo Acoustic Refrigeration, Ejector Cooling, Vortex Tube Refrigeration Systems and Metal Hydride Refrigeration etc. are explored in the subject matter of this book. The combined or integrated approach of some technologies to enhance the performance, waste heat utilization or to increase the arena of its use is also discussed. This book will cater to the needs of the RAC community from the point of view of feasible futuristic options in this area. This book will also serve as a text book for postgraduate students especially of thermal and energy engineering stream and useful to the teachers, researchers, and practicing engineers.
Although conventional cogeneration systems have been used successfully in the last two decades, most of them have been large units using mainly hydrocarbon fuels that are becoming increasingly expensive. New cogeneration systems based on fuel cells and sorption air conditioning systems promise to be an energy-saving alternative for situations when cooling, heating and power are needed at low and medium capacities.
Cogeneration Fuel Cell-Sorption Air Conditioning Systems examines the thermodynamic principles of fuel cell performance and sorption air conditioning systems, and gives relevant information about the state of the art of these technologies. It also provides the reader with the theoretical bases and knowledge needed to understand the operation of these new cogeneration systems, as well as discussing the design basis and economical evaluation. Topics covered include: selected fuel cells for cogeneration CHP processes, state-of-the-art sorption refrigeration systems, potential applications in demonstration projects and profitability assessment of the cogeneration system.
Air conditioning and fuel cell engineers; postgraduates and researchers in energy fields; and designers of cooling, heating and power cogeneration systems will find Cogeneration Fuel Cell-Sorption Air Conditioning Systems a useful and informative reference.
The use of refrigeration, either directly or as part of an air-conditioning system, is essential to almost every branch of industry.
There is a need for practitioners to familiarise themselves with the general principles and methods of refrigeration and air conditioning, and the types of plant and operation currently in use.
This collection of literature attempts to compile many of the classic works that have stood the test of time and offer them at a reduced, affordable price, in an attractive volume so that everyone can enjoy them.
What mechanisms are involved in enabling us to generate predictions of what will happen in the near future? Although we use associative mechanisms as the basis to predict future events, such as using cues from our surrounding environment, timing, attentional, and configural mechanisms are also needed to improve this function. Timing mechanisms allow us to determine when those events will take place. Attentional mechanisms ensure that we keep track to cues that are present when unexpected events occur and disregard cues present when everything happens according to our expectation. Configural mechanisms make it possible to combine separate cues into one signal that predicts an event different from that predicted individually by separate cues. Writing for graduates and researchers in neuroscience, computer science, biomedical engineering, and psychology, the author presents neural network models that incorporate these mechanisms and shows, through computer simulations, how they explain the multiple properties of associative learning.
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