https://eva.fing.edu.uy/pluginfile.php/55828/mod_resource/content/1/kalogiru.pdf

Solar thermal collectors and applications

Renewable technologies are considered as clean sources of energy and optimal use of these resources minimize environmental impacts, produce minimum secondary wastes and are sustainable based on current and future economic and social societal needs. Sun is the source of all energies. The primary forms of solar energy are heat and light. Sunlight and heat are transformed and absorbed by the environment in a multitude of ways. Some of these transformations result in renewable energy flows such as biomass and wind energy. Renewable energy technologies provide an excellent opportunity for mitigation of greenhouse gas emission and reducing global warming through substituting conventional energy sources. In this article a review has been done on scope of CO2 mitigation through solar cooker, water heater, dryer, biofuel, improved cookstoves and by hydrogen.

https://www.beren.sakarya.edu.tr/sites/beren.sakarya.edu.tr/file/1380752545-07-RenewEn.pdf.pdf

Role of renewable energy sources in environmental protection: A review

Artificial neural networks (ANNs) constitute a class of flexible nonlinear models designed to mimic biological neural systems. In this entry, we introduce ANN using familiar econometric terminology and provide an overview of ANN modeling approach and its implementation methods. † Correspondence: Chung-Ming Kuan, Institute of Economics, Academia Sinica, 128 Academia Road, Sec. 2, Taipei 115, Taiwan; ckuan@econ.sinica.edu.tw. †† I would like to express my sincere gratitude to the editor, Professor Steven Durlauf, for his patience and constructive comments on early drafts of this entry. I also thank Shih-Hsun Hsu and Yu-Lieh Huang for very helpful suggestions. The remaining errors are all mine.

Artificial neural networks

The energy performance in buildings is influenced by many factors, such as ambient weather conditions, building structure and characteristics, the operation of sub-level components like lighting and HVAC systems, occupancy and their behavior. This complex situation makes it very difficult to accurately implement the prediction of building energy consumption. This paper reviews recently developed models for solving this problem, which include elaborate and simplified engineering methods, statistical methods and artificial intelligence methods. Previous research work concerning these models and relevant applications are introduced. Based on the analysis of previous work, further prospects are proposed for additional research reference.

A review on the prediction of building energy consumption

A review of computer tools for analysing the integration of renewable energy into various energy systems

Near-infrared absorbing glazing for energy-efficient windows: A critical review and performance assessments from the building requirements

The first edition of this book was issued by 2005, with the objective of providing basic tools for beginning graduate students interested in numerical relativity research. The size of the numerical relativity community has experienced a significant increase since then, due to the scientific breakthroughs in binary black hole simulations which started precisely by autumn 2005 with the famous Pretorius work. Perhaps this has contributed to exhaust the first printed edition in a couple of years. This second edition provides the opportunity to include important new developments that have arisen since 2005, which we detail below. It will also be the opportunity to respond to the continuing shift in the community scientific objectives, by incorporating a new chapter on relativistic hydrodynamics and magnetohydrodynamics. We have tried to keep the focus on basic tools and formalisms, with most numerical applications being able to run in a single PC. But proper reference is also made to more advanced developments, requiring much larger computational resources. Here is the list of the main changes and additions:

Preface to Second Edition

In this paper the collector erected at the Archimedes Solar Energy Laboratory is initially presented followed by the performance evaluation of the collector. The collector is made by Nep Solar from Australia. It has an aperture area of 14.4 m, a concentration ratio of 13.7 and can be operated up to 200°C. The collector aperture is 1208 mm and the receiver pipe is stainless steel 304 L with a diameter of 28mm, coated with selective coating having an absorptance of 0.93 and an emitance of 0.18. The collector is orientated with its axis in the East-West direction. The advantages of this tracking mode are that very little collector adjustment is required during the day and the full aperture always faces the sun at noon. A dedicated computer-operated tracking system is responsible for keeping the collector focused at all times. The collector is connected to a hot water storage tank which has a capacity of 300 liters. The collector fluid used in the tests is water, which is pressurized to avoid boiling in the receiver. The performance obtained is very satisfactory and agrees with the performance curve given by the manufacturer.

/pdf/evaluation-of-a-parabolic-trough-collector-performance-k8d5730ses.pdf

Evaluation of a parabolic trough collector performance

Energy yield estimation of on-vehicle photovoltaic systems in urban environments

In this paper, a life cycle analysis of thermosyphon solar water heating systems is presented. This includes the performance, economics and environmental benefits offered by the system investigated which is of the domestic size, suitable to satisfy most of the hot water needs of a four-person family. The results presented in this paper show that the solar contribution is 79%, the pay back time is 2.4 years and life cycle savings are €3014 with electricity backup and 3.1 years and €2010 with diesel backup respectively. Additionally, by using solar energy considerable amounts of greenhouse polluting gasses are avoided. The energy spent for the manufacture and installation of the solar systems is recouped in about 13 months. It can therefore be concluded that thermosyphon solar water hearting systems offer significant protection to the environment and should be employed whenever possible in order to achieve a sustainable future.

/pdf/life-cycle-analysis-of-thermosyphon-solar-water-heaters-3877jc86hx.pdf

Soteris A. Kalogirou

Papers

Near-infrared absorbing glazing for energy-efficient windows: A critical review and performance assessments from the building requirements

Preface to Second Edition

Evaluation of a parabolic trough collector performance

Energy yield estimation of on-vehicle photovoltaic systems in urban environments

Life cycle analysis of thermosyphon solar water heaters