Comparative Study Between Direct Steam Generation and Molten Salt Solar Tower Plants in the Climatic Conditions of the Eastern Moroccan Region

Hanane Ait Lahoussine Ouali  -  Laboratoire de Mécanique et d’Energétique, Faculté des Sciences, Université Mohammed 1, 60000 Oujda, Morocco
*Mohammed Amine Moussaoui  -  Laboratoire de Mécanique et d’Energétique, Faculté des Sciences, Université Mohammed 1, 60000 Oujda, Morocco
Ahmed Mezrhab  -  Laboratoire de Mécanique et d’Energétique, Faculté des Sciences, Université Mohammed 1, 60000 Oujda, Morocco
Hassane Naji  -  Univ. Artois, Univ. Lille, IMT & Yncréa-HEI, Laboratoire Génie Civil & géo-Environnement (EA 4515), Technoparc Futura, F-62400 Béthune, France, France
Received: 22 Mar 2020; Revised: 7 May 2020; Accepted: 8 May 2020; Published: 15 Jul 2020; Available online: 14 May 2020.
Open Access Copyright (c) 2020 International Journal of Renewable Energy Development
License URL: http://creativecommons.org/licenses/by/4.0

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Article Info
Section: Original Research Article
Language: EN
Statistics: 242 71
Abstract

This study deals with a numerical investigation to assess and compare the thermal and economic performance of two solar tower power systems. It concerns the Molten Salt (MS) and Direct Steam Generation (DSG) technologies used as heat carrier and storage. For this purpose, a 50 MWe solar tower plant without thermal energy  storage under the climatic conditions of the eastern Moroccan region is simulated with the System Advisor Model (SAM) software. The meteorological data has been collected via a high precision meteorological station located in Oujda city(34°40'53'' N 1°54'30.9'' W). The results are presented in terms of monthly energy production, annual energy output, and Levelized Electricity Cost (LEC). From these findings, it can be concluded that, for an amount annual Direct Normal Irradiance (DNI) of 1989.9 kWh/m2/yr, the molten salt plant has the highest annual energy production than the DSG (86.3 GWh for MS against 83.3 GWh for DSG) and the LEC of the Molten salt plant is 12.5 % lower than the DSG plant. ©2020. CBIORE-IJRED. All rights reserved

Keywords: Direct Steam Generation; LEC, Molten salt; Solar thermal power plant; heat transfer fluid

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