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research-article

Curvature variability study for small and large scale Linear Fresnel Solar Fields: a step towards optimization

[+] Author and Article Information
Sara Benyakhlef

Renewable Energy team, Department of Energy, Ecole Nationale Supérieure d'Arts et Métiers, Moulay Ismail University, ENSAM-Meknes, Marjane II, BP : 4024, Beni Mhamed - Meknes 50000, Morocco
sara.benyakhlef07@gmail.com

Ahmed Al Mers

Renewable Energy team, Department of Energy, Ecole Nationale Supérieure d'Arts et Métiers, Moulay Ismail University, ENSAM-Meknes, Marjane II, BP : 4024, Beni Mhamed - Meknes 50000, Morocco
almers_a@hotmail.com

Ossama Merroun

New Energies and Innovation Ecosystems team, Mechanical Engineering Department, Ecole Nationale Supérieure d'Arts et Métiers, Hassan II University, Ecole Nationale Supérieure d'Arts et Métiers, Avenue Nile 150, Casablanca, Morocco
meroun.ossama@gmail.com

Abdelfattah Bouatem

Renewable Energy team, Department of Energy, Ecole Nationale Supérieure d'Arts et Métiers, Moulay Ismail University, ENSAM-Meknes, Marjane II, BP : 4024, Beni Mhamed - Meknes 50000, Morocco
bouatem1@hotmail.com

Hamid Ajdad

Renewable Energy team, Department of Energy, Ecole Nationale Supérieure d'Arts et Métiers, Moulay Ismail University, ENSAM-Meknes, Marjane II, BP : 4024, Beni Mhamed - Meknes 50000, Morocco
ajdad.cmi@gmail.com

Noureddine Boutammachte

Renewable Energy team, Department of Energy, Ecole Nationale Supérieure d'Arts et Métiers, Moulay Ismail University, ENSAM-Meknes, Marjane II, BP : 4024, Beni Mhamed - Meknes 50000, Morocco
boutammachte@gmail.com

Soukaina El Alj

Renewable Energy team, Department of Energy, Ecole Nationale Supérieure d'Arts et Métiers, Moulay Ismail University, ENSAM-Meknes, Marjane II, BP : 4024, Beni Mhamed - Meknes 50000, Morocco
elalj.soukaina@gmail.com

1Corresponding author.

ASME doi:10.1115/1.4037382 History: Received March 03, 2017; Revised July 01, 2017

Abstract

Reducing levelized electricity costs of concentrated solar power (CSP) plants can be of great potential in accelerating the market penetration of these sustainable technologies. Linear Fresnel reflectors (LFRs) are one of these CSP technologies that may potentially contribute to such cost reduction. However, due to very little previous research, LFRs are considered as a low efficiency technology. In this type of solar collectors there is a variety of design approaches when it comes to optimizing such systems. The present paper aims to tackle a new research axis based on variability study of heliostat curvature as an approach for optimizing small and large scale LFRs. Numerical investigations based on a ray tracing model have demonstrated that LFR constructors should adopt a uniform curvature for small scale LFRs and a variable curvature per row for large scale LFRs. Better optical performances were obtained for LFRs regarding these adopted curvature types.An optimization approach based on the use of uniform heliostat curvature for small scale LFRs has led to a system cost reduction by means of reducing its receiver surface and height.

Copyright (c) 2017 by ASME
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