Abstract
Comparisons between experimental data and ray-tracing simulation results are presented for the high-flux SF60 solar furnace available at the Plataforma Solar de Almeria, Spain, which has an estimated thermal power of 60 kW. Since an important issue in many applications of solar concentrated radiation is to obtain a radiation distribution that is as homogeneous as possible over the central working area, so-called radiation homogenisers were also used but the degree of success achieved is just satisfactory, as the results show. Finally, further modelling studies using ray-tracing simulations aiming to attain a homogenous distribution of flux by means of double reflexion using two paraboloid surfaces are presented.
Highlights
Solar radiation is an endless source of CO2 emission-free energy at a global level
Suitable for installation in zones with high direct normal irradiance, high-flux solar furnaces are a particular type of optical system that use concentrated solar radiation for attaining the high temperatures needed for a wide range of applications in the fields of thermochemistry [2,3,4], materials processing [5,6] and characterisation of materials behaviour [7,8,9,10,11] and properties under extreme conditions [12,13]
The work published in 2017 by Levêque et al [3] provided a detailed inventory of existing high-flux optical systems and reviewed the designs and their characteristics
Summary
Solar radiation is an endless source of CO2 emission-free energy at a global level. Solar heat may be used for the production of electricity (especially when integrated with thermal energy storage) but it can be used in industrial processes [1]. Suitable for installation in zones with high direct normal irradiance, high-flux solar furnaces are a particular type of optical system that use concentrated solar radiation for attaining the high temperatures needed for a wide range of applications in the fields of thermochemistry [2,3,4], materials processing [5,6] and characterisation of materials behaviour [7,8,9,10,11] and properties under extreme conditions [12,13]. PEER implementation of reflective type two-stage solar concentrators should utilise parametric modelling and experimentation, experimentation,as asrecommended recommendedininthe the review conducted.
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