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Author: Dawei Liang
Publisher:
ISBN: 9783036560380
Category :
Languages : en
Pages : 0
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Book Description
Primary and secondary solar concentrators are of vital importance for advanced solar energy and solar laser researches. Some of the most recent developments in primary and secondary solar concentrators were firstly presented. A novel three-dimensional elliptical-shaped Fresnel lens analytical model was put forward to maximize the solar concentration ratio of Fresnel-lens-based solar concentrators. By combining a Fresnel lens with a modified parabolic mirror, significant improvement in solar laser efficiency was numerically calculated. A fixed fiber light guide system using concave outlet concentrators was proposed. The absence of a solar tracking structure highlights this research. By shaping a luminescent solar concentrators in the form of an elliptic array, its emission losses was drastically reduced. Simple conical secondary concentrator was effective for thermal applications. New progresses in solar-pumped lasers by NOVA University of Lisbon were presented. By adopting a rectangular fused silica light guide, 40 W maximum solar laser power was emitted from a single Ce:Nd:YAG rod. An aspheric fused silica secondary concentrator and a small diameter Ce:Nd:YAG rod were essential for attaining 4.5 % record solar-to-laser power conversion efficiency. A novel solar concentrator design for the efficient production of doughnut-shaped and top-hat solar laser beams were also reported. More importantly, a novel solar concentrator approach for the emission of 5 kW-class TEM00 mode solar laser beams from one megawatt solar furnace was put forward at the end of this book, revealing promising future for solar-pumped lasers.
Author: Dawei Liang
Publisher:
ISBN: 9783036560380
Category :
Languages : en
Pages : 0
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Book Description
Primary and secondary solar concentrators are of vital importance for advanced solar energy and solar laser researches. Some of the most recent developments in primary and secondary solar concentrators were firstly presented. A novel three-dimensional elliptical-shaped Fresnel lens analytical model was put forward to maximize the solar concentration ratio of Fresnel-lens-based solar concentrators. By combining a Fresnel lens with a modified parabolic mirror, significant improvement in solar laser efficiency was numerically calculated. A fixed fiber light guide system using concave outlet concentrators was proposed. The absence of a solar tracking structure highlights this research. By shaping a luminescent solar concentrators in the form of an elliptic array, its emission losses was drastically reduced. Simple conical secondary concentrator was effective for thermal applications. New progresses in solar-pumped lasers by NOVA University of Lisbon were presented. By adopting a rectangular fused silica light guide, 40 W maximum solar laser power was emitted from a single Ce:Nd:YAG rod. An aspheric fused silica secondary concentrator and a small diameter Ce:Nd:YAG rod were essential for attaining 4.5 % record solar-to-laser power conversion efficiency. A novel solar concentrator design for the efficient production of doughnut-shaped and top-hat solar laser beams were also reported. More importantly, a novel solar concentrator approach for the emission of 5 kW-class TEM00 mode solar laser beams from one megawatt solar furnace was put forward at the end of this book, revealing promising future for solar-pumped lasers.
Author: Inamuddin
Publisher: John Wiley & Sons
ISBN: 1394204329
Category : Science
Languages : en
Pages : 340
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Book Description
Discover the latest techniques and applications for solar energy concentrators in this essential guide for academics, researchers, environmentalists, and professionals seeking to harness the power of solar energy while reducing environmental impact and costs. This book is centered on contemporary fundamental techniques for collecting solar radiation and the prospective applications that show how solar energy concentrators (SEC) can be used in a variety of systems and may provide significant economic and environmental benefits. Around the globe, there is a tremendous drive to investigate the viability of utilizing solar energy, particularly in regions with temperate zones. The usage of solar energy in many sectors has grown over the years. The ongoing quest for an alternate energy source in response to the apparent depletion of fossil resources is the driving factor behind this transition. Fossil fuels are far more widely used now than ever before despite their rising price. Although all forms of renewable energy are accessible, solar radiation is the most prevalent and easily accessible. Using solar energy for higher processing temperatures is difficult despite being the most common clean and affordable renewable energy source on the planet. For this, solar energy concentrators (SEC) are a promising technology that could be used to harness both heat and electricity for diversified industrial operations. SECs are devices that harvest solar radiation and direct it to a single point of concentration. This book presents the most up-to-date fundamental strategies for the collection of the sun’s radiation. Moreover, SEC technical summaries are also evaluated concerning ongoing international assignments. Prominent applications are also featured to show the reader the scope of the SEC’s applicability. The potential implementations demonstrate that CSE can be employed in a wide range of systems and may offer considerable economic and environmental advantages.
Author: Angelo Basile
Publisher: Elsevier
ISBN: 0128173750
Category : Technology & Engineering
Languages : en
Pages : 336
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Book Description
Membrane Systems for Hydrogen Production offers an overview of advanced technologies in the field of both catalysts and membrane technologies for hydrogen productions and energy saving. Catalysts play an irreplaceable role in chemical engineering for carrying out reaction at industrial level. Membrane processes are today well-recognized technologies in many fields, such as water and wastewater treatment, gas separation and purification, etc. This book relates these two fields and their role in electrochemical hydrogen production by presenting 5 specific chapters where the catalysts are compared to the membrane technology. The purpose of this book is to provide an overview on recently developed catalysts which work in combination with membrane operations for energy savings. This combination provides an example of strategies for engineering development and process intensification of interest for both industrial and developing countries. Provides an overview of the interconnections between membrane technology and catalysts related to the electrochemical hydrogen production Provides a comprehensive review of advanced research on the catalysts used in electrochemical processes and the use of related membrane processes Addresses the key issues to introduce considerable process intensification in the hydrogen production
Author:
Publisher:
ISBN:
Category : Solar energy
Languages : en
Pages : 874
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Author: Ali H. A. Al-Waeli
Publisher: Springer Nature
ISBN: 3030278247
Category : Technology & Engineering
Languages : en
Pages : 282
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Book Description
This book provides the most up-to-date information on hybrid solar cell and solar thermal collectors, which are commonly referred to as Photovoltaic/Thermal (PV/T) systems. PV/T systems convert solar radiation into thermal and electrical energy to produce electricity, utilize more of the solar spectrum, and save space by combining the two structures to cover lesser area than two systems separately. Research in this area is growing rapidly and is highlighted within this book. The most current methods and techniques available to aid in overall efficiency, reduce cost and improve modeling and system maintenance are all covered. In-depth chapters present the background and basic principles of the technology along with a detailed review of the most current literature. Moreover, the book details design criteria for PV/T systems including residential, commercial, and industrial applications. Provides an objective and decisive source for the supporters of green and renewable source of energy Discusses and evaluates state-of-the-art PV/T system designs Proposes and recommends potential designs for future research on this topic
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 740
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ISBN:
Category : Space stations
Languages : en
Pages : 652
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ISBN:
Category : Power resources
Languages : en
Pages : 718
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Author: Jun Duan
Publisher: Frontiers Media SA
ISBN: 2832546102
Category : Medical
Languages : en
Pages : 151
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Book Description
Respiratory support is a series of significant techniques used widely in clinical which saves a great number of patients with impaired pulmonary function and respiratory failure caused by pneumonia, sepsis, trauma, and acute exacerbation of chronic obstructive pulmonary disease, especially in recent years of Covid-19. It could improve oxygenation, reduce respiratory rate, and maintain normal ventilation. These techniques include oxygen therapy, high-flow nasal cannula, noninvasive ventilation, mechanical ventilation, and extracorporeal membrane oxygenation et al. Respiratory support has been improved increasingly these 20 years. Summarizing experience from past cases and keeping up with the latest technology is crucial to improve patient management and prognosis.
Author:
Publisher:
ISBN:
Category : Fuel
Languages : en
Pages : 452
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