Desiccant-Assisted Cooling

Desiccant-Assisted Cooling PDF Author: Carlos Eduardo Leme Nóbrega
Publisher: Springer Science & Business Media
ISBN: 1447155653
Category : Technology & Engineering
Languages : en
Pages : 281

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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.

Advances in Solar Heating and Cooling

Advances in Solar Heating and Cooling PDF Author: Ruzhu Wang
Publisher: Woodhead Publishing
ISBN: 0081003021
Category : Technology & Engineering
Languages : en
Pages : 596

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Book Description
Advances in Solar Heating and Cooling presents new information on the growing concerns about climate change, the security of energy supplies, and the ongoing interest in replacing fossil fuels with renewable energy sources. The amount of energy used for heating and cooling is very significant, estimated, for example, as half of final energy consumption in Europe. Solar thermal installations have the potential to meet a large proportion of the heating and cooling needs of both buildings and industry and the number of solar thermal installations is increasing rapidly. This book provides an authoritative review of the latest research in solar heating and cooling technologies and applications. Provides researchers in academia and industry with an authoritative overview of heating and cooling for buildings and industry in one convenient volume Part III, ‘Solar cooling technologies’ is contributed by authors from Shanghai Jiao Tong University, which is a world-leader in this area Covers advanced applications from zero-energy buildings, through industrial process heat to district heating and cooling

Advanced Technologies, Systems, and Applications V

Advanced Technologies, Systems, and Applications V PDF Author: Samir Avdaković
Publisher: Springer
ISBN: 9783030547646
Category : Technology & Engineering
Languages : en
Pages : 582

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Book Description
This book gathers papers that are centered on the theory and practice of a wide variety of advanced technologies. They cover the latest developments in computing, networking, information technology, robotics, complex systems, communications, energy, mechanical engineering, civil engineering, geodesy, and other subjects. These papers were selected for presentation at the 12th annual conference Days of the Bosnian-Herzegovinian American Academy of Arts and Sciences (BHAAAS), which was scheduled to be held in Mostar, Bosnia and Herzegovina in June 2020 but was postponed due to the coronavirus pandemic. However, in light of the high quality of the submissions, BHAAAS’ technical and natural sciences division decided to create this special book despite the postponement. The editors would like to extend their special thanks to all the chairs of the planned symposia for their dedicated work in the production of this book: Jasmin Kevrić, Zerina Mašetić, Dželila Mehanović (Computer Science); Anes Kazagić, Hajrudin Džafo, Izet Smajević (Mechanical Engineering); Tarik Uzunović, Asif Šabanović, Jasmin Kevrić (Mechatronics, Robotics and Embedded Systems); Mirza Šarić, Tarik Hubana, Maja Muftić Dedović (Advanced Electrical Power Systems); Mirza Pozder, Naida Ademović, Medžida Mulić (Civil Engineering and Geodesy); Adnan Mujezinović, Muris Torlak (Computer Modeling and Simulations for Engineering Applications); and Aljo Mujčić, Edin Mujčić (Information and Communication Technologies).

Design of a Solar assisted Liquid Desiccant based evaporative Cooler

Design of a Solar assisted Liquid Desiccant based evaporative Cooler PDF Author: Zaeem Ahmer
Publisher: GRIN Verlag
ISBN: 3668646864
Category : Science
Languages : en
Pages : 98

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Book Description
Academic Paper from the year 2017 in the subject Engineering - Power Engineering, Eastern Mediterranean University, language: English, abstract: The increase of occupant comfort demands are leading to rising requirement for air conditioning, but deteriorating global energy and environment crisis are starving for energy saving and environmental protection. The need to come up with the new energy saving as well as environmental friendly air conditioning systems has been more urgent than ever before. In hot and humid areas, the liquid desiccant air-conditioning systems based on evaporative cooling was proposed as a promising invention. This system overcomes the difficulty of evaporative cooler increased humidity with cooling, which makes it unsuitable for hot and humid climates, by dehumidifying the air first and then cooling it inside an evaporative cooler with water. The heating effect of dehumidification process is compensated by cooling water circulation. The use of dehumidifier in conjunction with an evaporative cooler increases the efficiency of the system. Some of the advantages of using this system are: it can remove the air latent load, environmental friendly, removes the pollutants from the process air and reduces the amount of the electrical energy consumed. The primary objective of this project is to design a solar based liquid desiccant evaporative system to purify and supply cool air. Liquid desiccant dehumidification has been proven to be an effective method to extract the moisture of air with relatively less energy consumption, especially compared with conventional vapor compression system. Inside the dehumidifier we used calcium chloride solution which after some period of time gets diluted with water and loses its moisture absorbing capacity and therefore, needs to be heated in the solar collector to ensure that the liquid desiccant does not lose its absorption capacity. In this project, several different aspects in solar assisted liquid desiccant based evaporative cooler have been considered. Some of these aspects include the availability of the materials, manufacturability of the product, sustainability of the product, health and safety regulations and the environmental effects of the product.

Polygeneration Systems

Polygeneration Systems PDF Author: Francesco Calise
Publisher: Academic Press
ISBN: 0128206268
Category : Technology & Engineering
Languages : en
Pages : 453

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Book Description
The support for polygeneration lies in the possibility of integrating different technologies into a single energy system, to maximize the utilization of both fossil and renewable fuels. A system that delivers multiple forms of energy to users, maximizing the overall efficiency makes polygeneration an emerging and viable option for energy consuming industries. Polygeneration Systems: Design, Processes and Technologies provides simple and advanced calculation techniques to evaluate energy, environmental and economic performance of polygeneration systems under analysis. With specific design guidelines for each type of polygeneration system and experimental performance data, referred both to single components and overall systems, this title covers all aspects of polygeneration from design to operation, optimization and practical implementation. Giving different aspects of both fossil and non-fossil fuel based polygeneration and the wider area of polygeneration processes, this book helps readers learn general principles to specific system design and development through analysis of case studies, examples, simulation characteristics and thermodynamic and economic data. Detailed economic data for technology to assist developing feasibility studies regarding the possible application of polygeneration technologies Offers a comprehensive list of all current numerical and experimental results of polygeneration available Includes simulation models, cost figures, demonstration projects and test standards for designers and researchers to validate their own models and/or to test the reliability of their results

Handbook of Energy Systems in Green Buildings

Handbook of Energy Systems in Green Buildings PDF Author: Ruzhu Wang
Publisher: Springer
ISBN: 9783662491195
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
This handbook provides a comprehensive summary on the energy systems used in green buildings, with a particular focus on solar energy - the most common renewable energy source applied in this field. With the growing concern about environmental protections, the concepts of green building have been widely promoted and implemented in nowadays building designs and constructions. Among all, sustainable energy systems, including energy harvesting, conversion, and storage, is one of most important design factors in green buildings. Unlike traditional energy systems which highly rely on fossil fuel, green buildings utilize renewable energy source or high efficient energy systems, or both, to provide environmental friendly, low carbon waste energy. The most updated concepts, designs, technologies developed and implemented in heat pumps, cooling systems, power systems, and energy storage will be discussed here in details. This handbook is subdivided into 7-9 main sections to provide an in-depth discussion from foundational principles to practical techniques. In addition, different cases about green energy systems implemented in global will be discussed. The book will be structured easy-to-read, to make it more accessible to graduate students and professionals in diverse scientific and engineering communities, including applied physics, civil engineering, electrical engineering, mechanical engineering, material engineering, and chemical engineering.

Temperature and Humidity Independent Control (THIC) of Air-conditioning System

Temperature and Humidity Independent Control (THIC) of Air-conditioning System PDF Author: Xiaohua Liu
Publisher: Springer Science & Business Media
ISBN: 3642422225
Category : Technology & Engineering
Languages : en
Pages : 363

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Book Description
Temperature and Humidity Independent Control (THIC) of Air-conditioning System focuses on temperature and humidity independent control (THIC) systems, which represents a new concept and new approach for indoor environmental control. This book presents the main components of the THIC systems, including dehumidification devices, high-temperature cooling devices and indoor terminal devices. Other relevant issues, such as operation and control strategy and case studies, are also included. This book is intended for air-conditioning system designers and engineers as well as researchers working with indoor environments. Xiaohua Liu is an associate professor at the Building Energy Research Center, Tsinghua University, China. Yi Jiang is a member of the Chinese Academy of Engineering, the director of the Building Energy Research Center, Tsinghua University, China and the director of the China-USA Joint Research Center on Clean Energy. Tao Zhang is a Ph.D. candidate at the Building Energy Research Center, Tsinghua University, China.

Energy-Efficient Systems for Agricultural Applications

Energy-Efficient Systems for Agricultural Applications PDF Author: Muhammad Sultan
Publisher: Springer Nature
ISBN: 3030863948
Category : Technology & Engineering
Languages : en
Pages : 124

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Book Description
This book reports thermodynamic investigation, analyses, and options of temperature/humidity control systems and their technologies for agricultural applications including (but not limited to) fruits and vegetable storage, poultry air-conditioning, livestock thermal comfort, and wet market air-conditioning. The optimum temperature and humidity requirements for these agricultural applications are identified. Consequently, energy-efficient heat pump options are explored accordingly. The book helps to understand and to apply the thermodynamic knowledge of the energy-efficient systems for agricultural applications.

Applications of Solar Energy

Applications of Solar Energy PDF Author: Himanshu Tyagi
Publisher: Springer
ISBN: 981107206X
Category : Technology & Engineering
Languages : en
Pages : 364

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Book Description
This book focuses on solar-energy-based renewable energy systems and discusses the generation of electric power using solar photovoltaics, as well as some new techniques, such as solar towers, for both residential and commercial needs. Such systems have played an important role in the move towards low-emission and sustainable energy sources. The book covers a variety of applications, such as solar water heaters, solar air heaters, solar drying, nanoparticle-based direct absorption solar systems, solar volumetric receivers, solar-based cooling systems, solar-based food processing and cooking, efficient buildings using solar energy, and energy storage for solar thermal systems. Given its breadth of coverage, the book offers a valuable resource for researchers, students, and professionals alike.

Open Cycle Solid Desiccant Cooling

Open Cycle Solid Desiccant Cooling PDF Author: Jeff Jerome Jurinak
Publisher:
ISBN:
Category : Air conditioning
Languages : en
Pages : 460

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Book Description