Concentrating solar power technology

Lovegrove, Keith; Stein, W.

doi:10.1533/9780857096173

Cited by 193 publications

(63 citation statements)

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“…The thermal receiver is considered the heart of the system because it provides the cycle with the required thermal energy; thus increasing its efficiency by reducing the optical and thermal losses, which will increase the overall system's efficiency. A recuperator, (2)(3), is used to recover heat from the turbine exit's hot air.…”

Section: -Cycle Componentsmentioning

confidence: 99%

The optical efficiency of three different geometries of a small scale cavity receiver for concentrated solar applications

2016

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Section: -Cycle Componentsmentioning

confidence: 99%

The optical efficiency of three different geometries of a small scale cavity receiver for concentrated solar applications

2016

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“…It is the ratio between the collector aperture area and the total area of the absorber tube [15]. In this design the geometric concentration ratio (C) is 12.83, this PTC is suitable for applications like desalination, heat driven cooling and refrigeration, irrigation water pumping and space heating [16] [17].…”

Section: Geometric Concentration Ratiomentioning

confidence: 99%

Design, Simulation and Manufacturing of an Integrated Composite Material Parabolic Trough Solar Collector

Abdel-Hady¹,

Shakil²,

Hamed³

et al. 2016

IJET

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Abstract-Design, simulation, and manufacturing process of an integrated thermal photovoltaic closed parabolic collector (ITPVCPC) using composite material is presented in this paper. The design includes two flanges for supporting photovoltaic panels. Two cases of troughs were designed and studied, one with glass cover over the aperture area and another without it in order to investigate the structure rigidity and solar ray collection in the absorber tube. Three-dimensional modelling and structural finite element analysis (FEA) based simulation was done for the design. In the simulation, the ITPVCPC structure was subjected to the upper limits of wind pressure and temperature-rise loadings similar to the real working conditions. Optical analysis was done for the trough to study the effect of structure deformation on solar ray collection. The glass covered ITPVCPC showed higher structure deformation than the one without glass. Glass fiber with polyester resin was used in the manufacture of ITPVCPC for its low price compared to other composite materials. The study shows that glass fiber (with polyester matrix) is an ideal composite material for ITPVCPC for its high rigidity, low cost, and ease of manufacture. This design is successfully implemented and is the source of thermal and electrical power for a solar desalination system installed in Jeddah, Saudi Arabia. Keywords: Finite element analysis (FEA), concentrating solar power (CSP), hand-layup method, glass fiber reinforced polymer (GFRP) I.INTRODUCTION Fossil fuels such as petroleum oil, coal and natural gas are used as a primary energy source in developed nations. These carbon rich fuels release CO2 to the environment which has a negative effect on the atmosphere. It alters the radiation-balance of the earth and promotes global warming [1]. This has forced the consumers to think of alternate sources which would be cheap at least in the long run. Due to awareness of pollution and economics of fuel, the focus is now shifted to solar and other clean energy sources. Parabolic trough technology is currently the lowest-cost concentrating solar power (CSP) technology for electricity production [2]. Parabolic trough collector (PTC) uses a highly reflective surface to focus incident solar rays on a heat collector element (HCE) also called receiver tube. The receiver tube is placed at the point of convergence (focal point of parabola). The tube contains a working fluid that absorbs solar heat and gets heated up to temperatures of 350o C or more. It is enveloped by an evacuated (vacuumed) glass tube to reduce convective heat loss to the surrounding. The collector has a disadvantage of smaller angle of view. Therefore, to maximize the solar heat gain, a tracking mechanism is used to align it with respect to the changing position of the sun. Collector is being considered for a lot of applications like Enhanced Oil Recovery (EOR) [3], water disinfection in third world countries [4], desalination [5], refrigeration and cooling [6], heating applications [7] etc. Many innovativ...

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“…Development of space technologies in the leading countries of the world will contribute to the creation of large-sized struc-tures [1] since in order to use the almost endless supplies of solar energy it is expedient to employ powerful solar power plants, solar concentrators and space-based mirrors. One of the promising directions in the development of large extraterrestrial…”

Section: Introductionmentioning

confidence: 99%

Geometrical modeling of the inertial unfolding of a multi-link pendulum in weightlessness

Kutsenko

Shoman

Semkiv

et al. 2017

EEJET

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Досліджено геометричну модель розкриття каркасу орбітального об'єкта як процесу коливання багатоланкового маятника в умовах невагомості. Коливання виникають завдяки впливу імпульсу реактивного двигуна на прикінцевий вузол елементів маятника. Опис інерційного розкриття маятника виконано за допомогою рівняння Лагранжа другого роду. Результати доцільно використати при проектуванні розкриття великогабаритних конструкцій в умовах невагомості, наприклад, каркасів для сонячних дзеркал Ключові слова: багатоланковий маятник, великомасштабна конструкція, розкриття у космосі, дзеркало у космосі, рівняння Лагранжа другого роду Исследована геометрическая модель раскрытия каркаса орбитального объекта как процесса колебания многозвенного маятника в условиях невесомости. Колебания возникают благодаря воздействию импульса реактивного двигателя на конечный узел элементов маятника. Описание инерционного раскрытия маятника выполнено с помощью уравнения Лагранжа второго рода. Результаты целесообразно использовать при проектировании раскрытия крупногабаритных конструкций в условиях невесомости, например, каркасов для солнечных зеркалКлючевые слова: многозвенный маятник, крупномасштабная конструкция, развертывание в космосе, зеркало в космосе, уравнение Лагранжа второго рода UDC 514.18

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Concentrating solar power technology

Cited by 193 publications

References 0 publications

The optical efficiency of three different geometries of a small scale cavity receiver for concentrated solar applications

The optical efficiency of three different geometries of a small scale cavity receiver for concentrated solar applications

Design, Simulation and Manufacturing of an Integrated Composite Material Parabolic Trough Solar Collector

Geometrical modeling of the inertial unfolding of a multi-link pendulum in weightlessness

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