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Author: Shailendra Kumar Shukla Publisher: LAP Lambert Academic Publishing ISBN: 9783659410024 Category : Languages : en Pages : 76
Book Description
With the drastically change in climatic conditions in recent years, demand for air conditioning is spreading all over the world. This causes a primary consumption of energy in high quantity. In order to provide the best indoor air quality and thermal comfort with minimum consumption of energy, the hybrid desiccant cooling system is one of the options in our daily life. This work presents results of experimental and simulation study of a hybrid desiccant cooling system for air conditioning applications using two different desiccants (Lithium chloride and Calcium Chloride).
Author: Shailendra Kumar Shukla Publisher: LAP Lambert Academic Publishing ISBN: 9783659410024 Category : Languages : en Pages : 76
Book Description
With the drastically change in climatic conditions in recent years, demand for air conditioning is spreading all over the world. This causes a primary consumption of energy in high quantity. In order to provide the best indoor air quality and thermal comfort with minimum consumption of energy, the hybrid desiccant cooling system is one of the options in our daily life. This work presents results of experimental and simulation study of a hybrid desiccant cooling system for air conditioning applications using two different desiccants (Lithium chloride and Calcium Chloride).
Author: Carlos Eduardo Leme Nóbrega Publisher: Springer Science & Business Media ISBN: 1447155653 Category : Technology & Engineering Languages : en Pages : 281
Book Description
The increasing concern with indoor air quality has led to air-quality standards with increased ventilation rates. Although increasing the volume flow rate of outside air is advisable from the perspective of air-quality, it is detrimental to energy consumption, since the outside air has to be brought to the comfort condition before it is insufflated to the conditioned ambient. Moreover, the humidity load carried within outside air has challenging HVAC engineers to design cooling units which are able to satisfactorily handle both sensible and latent contributions to the thermal load. This constitutes a favorable scenario for the use of solid desiccants to assist the cooling units. In fact, desiccant wheels have been increasingly applied by HVAC designers, allowing distinct processes for the air cooling and dehumidification. In fact, the ability of solid desiccants in moisture removal is effective enough to allow the use of evaporative coolers, in opposition to the traditional vapor-compression cycle, resulting in an ecologically sound system which uses only water as the refrigerant. Desiccant Assisted Cooling: Fundamentals and Applications presents different approaches to the mathematical modeling and simulation of desiccant wheels, as well as applications in thermal comfort and humidity controlled environments. Experts in the field discuss topics from enthalpy, lumped models for heat and mass transfer, and desiccant assisted radiant cooling systems, among others. Aimed at air-conditioning engineers and thermal engineering researchers, this book can also be used by graduate level students and lecturers in the field.
Author: Publisher: Charles Nehme ISBN: Category : Technology & Engineering Languages : en Pages : 45
Book Description
The ever-increasing demand for efficient, sustainable, and environmentally friendly cooling solutions has led to significant advancements in the field of HVAC technology. Among these innovations, desiccant cooling systems have emerged as a promising alternative to traditional air conditioning methods. By harnessing the principles of moisture absorption and evaporation, desiccant cooling systems offer precise control over indoor environments, reduced energy consumption, and minimized environmental impact. This comprehensive guide aims to explore the intricacies of desiccant cooling systems, providing readers with a deep understanding of the fundamental principles, diverse applications, challenges faced, and future trends in this field. Through detailed chapters, we delve into the psychrometric processes, types of desiccants, system components, configurations, performance evaluation, real-world applications, and the innovative solutions that shape the landscape of desiccant cooling technology. As the world grapples with the challenges of climate change and the imperative to reduce greenhouse gas emissions, the significance of sustainable cooling technologies cannot be overstated. Desiccant cooling systems stand at the forefront of this movement, offering a path toward energy efficiency, environmental responsibility, and enhanced indoor comfort. We invite readers, ranging from HVAC professionals and engineers to researchers and environmentally conscious individuals, to embark on this journey through the realms of desiccant cooling. By embracing the knowledge presented within these pages, we can collectively contribute to a greener and more sustainable future.
Author: Vivekh Prabakaran Publisher: Springer Nature ISBN: 3030808432 Category : Technology & Engineering Languages : en Pages : 152
Book Description
This book systematically analyses state-of-the-art technology and research related to desiccant dehumidification. It provides key insights into the current research direction, and presents global research and development interests. It begins by offering a comprehensive review of conventional desiccants and their underlying engineering challenges. Fundamental material characteristic properties and factors critical to the desiccant synthesis are highlighted. The applicability of next-generation advanced materials to address the challenges is documented, and the advantages of desiccant coated heat exchangers are evaluated. Lastly, the potential applications of desiccant dehumidifiers in various energy-connected applications are discussed, and case studies on industrial/building cooling systems are provided. Specifically targeted at HVAC engineers, thermal scientists, energy-engineering researchers, and graduate-level students in the field, the technical content balances fundamental concepts and applications.
Author: Gaspar, Pedro Dinis Publisher: IGI Global ISBN: 1466683996 Category : Technology & Engineering Languages : en Pages : 1037
Book Description
In recent years, the sustainability and safety of perishable foods has become a major consumer concern, and refrigeration systems play an important role in the processing, distribution, and storage of such foods. To improve the efficiency of food preservation technologies, it is necessary to explore new technological and scientific advances both in materials and processes. The Handbook of Research on Advances and Applications in Refrigeration Systems and Technologies gathers state-of-the-art research related to thermal performance and energy-efficiency. Covering a diverse array of subjects—from the challenges of surface-area frost-formation on evaporators to the carbon footprint of refrigerant chemicals—this publication provides a broad insight into the optimization of cold-supply chains and serves as an essential reference text for undergraduate students, practicing engineers, researchers, educators, and policymakers.
Author: Ahmad A. Pesaran Publisher: ISBN: Category : Humidity Languages : en Pages : 17
Book Description
The performance of open-cycle desiccant cooling systems depends on several factors, some of which can change beyond manufacturers' specifications. For example, the desiccant sorption process may degrade with time on exposure to airborne contaminants and thermal cycling. Desiccant degradation can reduce the performance of a dehumidifier and thus the performance of desiccant cooling systems. Using computer simulations and recent experimental data on silica gel, the impact of degradation was evaluated. Hypothetical degradations of desiccants with Type 1 moderate isotherms were also simulated. Depending on the degree and type of desiccant degradation, the decrease in thermal coefficient of performance (COP) and cooling capacity of the system was 10% to 35%. The 35% loss in system performance occurs when desiccant degradation is considered worst case. The simulations showed that the COP, and to a lesser degree the cooling capacity of these degraded systems, could be improved by increasing the rotational speed of the dehumidifier. It is shown that easy engineering solutions might be available for some types of degradations.
Author: Shailendra Kumar Shukla
Author: Shailendra Kumar Shukla
Author: Sabyaschi Patnaik
Author: Sudhanshu Misra
Author: Terry R. Penney
Author: Carlos Eduardo Leme Nóbrega
Author: Michael Epstein
Author: 
Author: Vivekh Prabakaran
Author: Gaspar, Pedro Dinis
Author: Ahmad A. Pesaran