Designing a Flat Beam-Down Linear Fresnel Reflector

2021 ◽  
Author(s):  
Sebastián Taramona ◽  
Pedro Ángel González-Gómez ◽  
Javier Villa Briongos ◽  
Jesús Gómez-Hernández
Keyword(s):  
Flat Beam ◽  
Linear Fresnel Reflector

scholarly journals Coupling of a Solid-oxide Cell Unit and a Linear Fresnel Reflector Field for Grid Management

2014 ◽  
Vol 57 ◽  
pp. 706-715 ◽  
Author(s):  
Javier Sanz-Bermejo ◽  
Víctor Gallardo-Natividad ◽  
José González-Aguilar ◽  
Manuel Romero
Keyword(s):  
Solid Oxide ◽  
Linear Fresnel Reflector ◽  
Solid Oxide Cell ◽  
Grid Management

scholarly journals Elimination of the blinding effect in landscape luminaires

2018 ◽  
Vol 7 (2.13) ◽  
pp. 252
Author(s):  
Albert Ashryatov ◽  
Dinara Churakova
Keyword(s):  
Light Curve ◽  
Light Source ◽  
Light Flux ◽  
Light Distribution ◽  
Light Sources ◽  
Mirror Surface ◽  
Light Emitting ◽  
Lighting Technology ◽  
Initial Task ◽  
Flat Beam

The article presents one of the possible options for implementing the lighting technology "Flat beam" for landscape lighting purposes. One of the possible ways to control the light distribution of a number of light sources based on LEDs with different radiation patterns is considered. As a secondary optics, it is proposed to use a mirror surface that redistributes the light flux of an LED light source. It is indicated that, depending on the initial type of the light-emitting diodes light curve and the features of mounting the mirror surface, the resulting light distribution can vary widely, depending on the initial task that the designer sets for himself.  

Parametric study of the small scale linear Fresnel reflector

2018 ◽  
Vol 116 ◽  
pp. 64-74 ◽  
Author(s):  
A. Barbón ◽  
N. Barbón ◽  
L. Bayón ◽  
J.A. Sánchez-Rodríguez
Keyword(s):  
Parametric Study ◽  
Small Scale ◽  
Linear Fresnel Reflector

Construction and Experimental Study of an Elevation Linear Fresnel Reflector

2016 ◽  
Vol 138 (3) ◽  
Author(s):  
J. D. Nixon ◽  
P. A. Davies
Keyword(s):  
Heat Loss ◽  
Thermal Efficiency ◽  
Theoretical Models ◽  
Loss Coefficient ◽  
Heat Transfer Fluid ◽  
Stagnation Temperature ◽  
Model Predictions ◽  
The Difference ◽  
Predicted Values ◽  
Linear Fresnel Reflector

This paper outlines a novel elevation linear Fresnel reflector (ELFR) and presents and validates theoretical models defining its thermal performance. To validate the models, a series of experiments were carried out for receiver temperatures in the range of 30–100 °C to measure the heat loss coefficient, gain in heat transfer fluid (HTF) temperature, thermal efficiency, and stagnation temperature. The heat loss coefficient was underestimated due to the model exclusion of collector end heat losses. The measured HTF temperature gains were found to have a good correlation to the model predictions—less than a 5% difference. In comparison to model predictions for the thermal efficiency and stagnation temperature, measured values had a difference of −39% to +31% and 22–38%, respectively. The difference between the measured and predicted values was attributed to the low-temperature region for the experiments. It was concluded that the theoretical models are suitable for examining linear Fresnel reflector (LFR) systems and can be adopted by other researchers.

Experimental investigation of the daily performance of an integrated linear Fresnel reflector system

Solar Energy ◽  
2018 ◽  
Vol 167 ◽  
pp. 220-230 ◽  
Author(s):  
Evangelos Bellos ◽  
Emmanouil Mathioulakis ◽  
Elias Papanicolaou ◽  
Vassilis Belessiotis
Keyword(s):  
Experimental Investigation ◽  
Reflector System ◽  
Linear Fresnel Reflector
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