Optimized design of a Linear Fresnel reflector for solar process heat applications

Design, Manufacturing and Characterization of Linear Fresnel Reflector’s Facets

“…For the definition of the mirror's geometry, an iteration process is performed using a previously created in-house ray trace code [9]. The goal of the process is to maximize the power impinging on the receiver while using one single radius of curvature for all mirrors (cylindrical shape).…”

“…The results show that the optical behavior is rather similar for both configurations. As a consequence, it is stated that the optical handicap of using cylindrical mirrors instead of parabolic mirrors is marginal [9].…”

Optical Numerical Investigation of a Solar Power Plant of Parabolic Trough Collectors

“…Solar energy is one of the most abundant renewable energy sources in the world. It is a solar radiation that can be used in several fields, the most important of which are: electricity production and charge the batteries [3][4][5][6][7], air conditioning [8][9][10][11], heat swimming pools [12], air heating [13][14][15], water heating [16][17][18], nanofluids applications [19,20], solar irrigation [21,22], cook food [23,24], desalination [25,26], drying [27,28] and process heat applications [29,30]. For good use and more efficient use of solar energy, there are many techniques for solar collectors that can be used, including the compound parabolic collectors (CPCs) [31,32], the evacuated tube collectors (ETCs), the Flat-plate collectors (FPCs) [33][34][35], the Heliostat field collectors (HFCs) [36], the linear Fresnel reflectors (LFRs) [37][38][39], the parabolic dish reflector (PDRs) [40,41] and the parabolic trough collectors (PTCs) [42][43][44].…”

Brief on Solar Concentrators: Differences and Applications

“…Solar energy is the most important source of renewable energy, where it can be exploited thermally and photovoltaically by using multiple solar collectors [4], Knowing that, the performance of solar collectors can be improved by dispersing nanoparticles within the working fluid [5][6][7][8][9], because the dispersed nanoparticles inside the working fluid improve the thermal transfer coefficients of the base fluid [10]. There are several techniques for using solar energy thermally, the most important of which is the use of thermodynamic systems with solar concentrators that are considered the most important in the world [9,[11][12][13][14], as these systems generate solar energy using mirrors or lenses to focus a large amount of beam radiation on a small area in order to exploit the heat flux intensity later in several industrial applications such as electricity production [14,15], heating water [8, [16][17][18][19], water desalination and purification [6], cooling and air conditioning systems [20,21], industrial uses [22][23][24] and agricultural applications [25]. For example, solar electricity is generated when the concentrated solar radiation is converted into heat [26], which drives a steam turbine connected to an electric power generator or a thermochemical reaction [27][28][29].…”