Thermo-economic Assessment of an Integrated Solar Combined Cycle System
Ecole Nationale Polytechnique
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Laboratory of Energetics and Conversion Systems, Faculty of Mechanical Engineering, University of Sciences and Technology, Houari Boumediene, BP 32 El-alia, Bab-ezzouar, 16111, Algiers, Algeria
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## Abstract

The ambitious Algerian program for diversification of electric energy sources is targeting 22 000 MWe from the renewable energy to the horizon of 2030. This study is a thermo-economic assessment of an integrated solar combined cycle system installed in the Saharan region, which during the nights or cloudy days works as a conventional combined cycle and does not need storage or back-up systems. The obtained results show, in one side that the solar electricity ratio may reach about 17 % and the global thermal efficiency up to 63 %, leading to lower fuel consumption and carbon emission. In the other side, the economic assessment depicts that the levelized cost of energy may reach a value of 0.0222 $/kWh which is about 28 % higher than CC plants. By considering the environment this latter is even more and may reach about 0.0272$/kWh, but the annual solar contribution, relatively to that installation site, allows about 18.45 million \$ of fuel saving and avoidance of 0.89 million ton of CO2 emission over 30 years of operation. operation.
30 Jan 2020Submitted to Engineering Reports
31 Jan 2020Submission Checks Completed
31 Jan 2020Assigned to Editor
18 Feb 2020Reviewer(s) Assigned
03 Mar 2020Editorial Decision: Reject & Resub