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Author: Lukas Kasper Publisher: TU Wien Academic Press ISBN: 3854480377 Category : Technology & Engineering Languages : en Pages : 149
Book Description
To increase the efficiency of energy-intensive industrial processes, thermal energy storages can offer new possibilities. A novel approach is investigated in the project HyStEPs. In this concept, containers filled with PCM are placed at the shell surface of a Ruths steam storage, to increase storage efficiency. In this work, a two-dimensional model using the finite element method is developed to simulate the PCM of the hybrid storage as designed in the HyStEPs project. The apparent heat capacity method is applied in a MATLAB implementation, considering heat transfer by both conduction and natural convection. This successfully validated code can handle any desired layout of materials arranged on a rectangular domain. Furthermore, a parameter study of different dimensions and orientations of the PCM cavity was conducted. The impact of natural convection was found to lead to significantly varying behaviour of the studied cavities with different orientation during the charging process, while it was found to be negligible during the discharging process.
Author: Lukas Kasper Publisher: TU Wien Academic Press ISBN: 3854480377 Category : Technology & Engineering Languages : en Pages : 149
Book Description
To increase the efficiency of energy-intensive industrial processes, thermal energy storages can offer new possibilities. A novel approach is investigated in the project HyStEPs. In this concept, containers filled with PCM are placed at the shell surface of a Ruths steam storage, to increase storage efficiency. In this work, a two-dimensional model using the finite element method is developed to simulate the PCM of the hybrid storage as designed in the HyStEPs project. The apparent heat capacity method is applied in a MATLAB implementation, considering heat transfer by both conduction and natural convection. This successfully validated code can handle any desired layout of materials arranged on a rectangular domain. Furthermore, a parameter study of different dimensions and orientations of the PCM cavity was conducted. The impact of natural convection was found to lead to significantly varying behaviour of the studied cavities with different orientation during the charging process, while it was found to be negligible during the discharging process.
Author: Suvanjan Bhattacharyya Publisher: Springer Nature ISBN: 9811962707 Category : Science Languages : en Pages : 628
Book Description
This book presents the select proceedings of the 48th National Conference on Fluid Mechanics and Fluid Power (FMFP 2021) held at BITS Pilani in December 2021. It covers the topics such as fluid mechanics, measurement techniques in fluid flows, computational fluid dynamics, instability, transition and turbulence, fluid‐structure interaction, multiphase flows, micro- and nanoscale transport, bio-fluid mechanics, aerodynamics, turbomachinery, propulsion and power. The book will be useful for researchers and professionals interested in the broad field of mechanics.
Author: Alejandro Datas Publisher: Woodhead Publishing ISBN: 0128204214 Category : Science Languages : en Pages : 370
Book Description
Ultra-High Temperature Thermal Energy Storage, Transfer and Conversion presents a comprehensive analysis of thermal energy storage systems operating at beyond 800°C. Editor Dr. Alejandro Datas and his team of expert contributors from a variety of regions summarize the main technological options and the most relevant materials and characterization considerations to enable the reader to make the most effective and efficient decisions.This book helps the reader to solve the very specific challenges associated with working within an ultra-high temperature energy storage setting. It condenses and summarizes the latest knowledge, covering fundamentals, device design, materials selection and applications, as well as thermodynamic cycles and solid-state devices for ultra-high temperature energy conversion.This book provides a comprehensive and multidisciplinary guide to engineers and researchers in a variety of fields including energy conversion, storage, cogeneration, thermodynamics, numerical methods, CSP, and materials engineering. It firstly provides a review of fundamental concepts before exploring numerical methods for fluid-dynamics and phase change materials, before presenting more complex elements such as heat transfer fluids, thermal insulation, thermodynamic cycles, and a variety of energy conversation methods including thermophotovoltaic, thermionic, and combined heat and power. - Reviews the main technologies enabling ultra-high temperature energy storage and conversion, including both thermodynamic cycles and solid-state devices - Includes the applications for ultra-high temperature energy storage systems, both in terrestrial and space environments - Analyzes the thermophysical properties and relevant experimental and theoretical methods for the analysis of high-temperature materials
Author: Ibrahim Dinçer Publisher: John Wiley & Sons ISBN: 1119956625 Category : Science Languages : en Pages : 585
Book Description
The ability of thermal energy storage (TES) systems to facilitate energy savings, renewable energy use and reduce environmental impact has led to a recent resurgence in their interest. The second edition of this book offers up-to-date coverage of recent energy efficient and sustainable technological methods and solutions, covering analysis, design and performance improvement as well as life-cycle costing and assessment. As well as having significantly revised the book for use as a graduate text, the authors address real-life technical and operational problems, enabling the reader to gain an understanding of the fundamental principles and practical applications of thermal energy storage technology. Beginning with a general summary of thermodynamics, fluid mechanics and heat transfer, this book goes on to discuss practical applications with chapters that include TES systems, environmental impact, energy savings, energy and exergy analyses, numerical modeling and simulation, case studies and new techniques and performance assessment methods.
Author: Harald Mehling Publisher: Springer Science & Business Media ISBN: 354068557X Category : Science Languages : en Pages : 316
Book Description
The years 2006 and 2007 mark a dramatic change of peoples view regarding c- mate change and energy consumption. The new IPCC report makes clear that - mankind plays a dominant role on climate change due to CO emissions from en- 2 ergy consumption, and that a significant reduction in CO emissions is necessary 2 within decades. At the same time, the supply of fossil energy sources like coal, oil, and natural gas becomes less reliable. In spring 2008, the oil price rose beyond 100 $/barrel for the first time in history. It is commonly accepted today that we have to reduce the use of fossil fuels to cut down the dependency on the supply countries and to reduce CO emissions. The use of renewable energy sources and 2 increased energy efficiency are the main strategies to achieve this goal. In both strategies, heat and cold storage will play an important role. People use energy in different forms, as heat, as mechanical energy, and as light. With the discovery of fire, humankind was the first time able to supply heat and light when needed. About 2000 years ago, the Romans started to use ceramic tiles to store heat in under floor heating systems. Even when the fire was out, the room stayed warm. Since ancient times, people also know how to cool food with ice as cold storage.
Author: Liwei Wang Publisher: Springer Nature ISBN: 9813360887 Category : Technology & Engineering Languages : en Pages : 282
Book Description
Solid chemisorption technology is an effective form of energy conversion for recovering low-grade thermal energy, but limited thermal conductivity and agglomeration phenomena greatly limit its performance. Over the past 20 years, researchers have explored the use of thermal conductive porous matrix to improve heat and mass transfer performance. Their efforts have yielded composite sorption technology, which is now extensively being used in refrigeration, heat pumps, energy storage, and de-NOx applications. This book reviews the latest technological advances regarding composite solid sorbents. Various development methods are introduced and compared, kinetic models are presented, and different cycles are analyzed. Given its scope, the book will benefit experts involved in developing novel materials and cycles for energy conversion, as well as engineers working to develop effective commercialized energy conversion systems based on solid sorption technology
Author: Fethi Aloui Publisher: Elsevier ISBN: 0443190186 Category : Science Languages : en Pages : 862
Book Description
Handbook of Thermal Management Systems: e-Mobility and Other Energy Applications is a comprehensive reference on the thermal management of key renewable energy sources and other electronic components. With an emphasis on practical applications, the book addresses thermal management systems of batteries, fuel cells, solar panels, electric motors, as well as a range of other electronic devices that are crucial for the development of sustainable transport systems. Chapters provide a basic understanding of the thermodynamics behind the development of a thermal management system, update on Batteries, Fuel Cells, Solar Panels, and Other Electronics, provide a detailed description of components, and discuss fundamentals. Dedicated chapters then systematically examine the heating, cooling, and phase changes of each system, supported by numerical analyses, simulations and experimental data. These chapters include discussion of the latest technologies and methods and practical guidance on their application in real-world system-level projects, as well as case studies from engineering systems that are currently in operation. Finally, next-generation technologies and methods are discussed and considered. - Presents a comprehensive overview of thermal management systems for modern electronic technologies related to energy production, storage and sustainable transportation - Addresses the main bottlenecks in the technology development for future green and sustainable transportation systems - Focuses on the practical aspects and implementation of thermal management systems through industrial case studies, real-world examples, and solutions to key problems
Author: Hosseinzadeh, Khashayar Publisher: IGI Global ISBN: Category : Technology & Engineering Languages : en Pages : 389
Book Description
Academic scholars are increasingly confronted with the complex challenges of understanding and optimizing heat transfer processes, particularly in the areas of cavities and Phase Change Materials (PCM). These issues are central to a range of crucial applications, including building systems, electronic equipment, and the harnessing of solar energy. The need for innovative solutions to enhance heat transfer efficiency is more pressing than ever, and a comprehensive resource to guide scholars through these complexities is essential. FlexPDE and Finite Element Method Applications in Thermal Energy Storage and Cavities is research book specifically designed to provide scholars with the knowledge and expertise necessary to navigate the complexities of heat transfer issues. With a strong emphasis on practical application, the book leverages the capabilities of the Finite Element Method (FEM) through the FLEXPDE software, making it a valuable resource for those seeking innovative solutions to problems in heat transfer.
Author: Lukas Kasper 
Author: Lukas Kasper 
Author: Suvanjan Bhattacharyya
Author: Alejandro Datas
Author: Ibrahim Dinçer
Author: 
Author: Harald Mehling
Author: Liwei Wang
Author: 
Author: Fethi Aloui
Author: Hosseinzadeh, Khashayar