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A systematic comparison on power block efficiencies for CSP plants with direct steam generation

Hirsch, Tobias and Khenissi, Abdallah (2014) A systematic comparison on power block efficiencies for CSP plants with direct steam generation. Energy Procedia (49). Elsevier. ISSN 1876-6102

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Abstract

The increase of the process temperature of concentrating solar power plants above the degradation temperature of thermal oil (400 °C) opens the way for increased power block efficiency and thus reduced cost of electricity production. Direct solar steam generation is one technical option to follow this path. The paper presents different power block designs for direct steam generation parabolic trough and linear Fresnel power plants. Based on a systematic modelling approach, results for efficiency gains are derived and compared against a reference case of an oil-based plant. The results show that different reheat configurations are feasible and that efficiency gains in the range from 4 to 6% can be expected based on todays or near future solar collector technology.

Item URL in elib:https://elib.dlr.de/93014/
Document Type:Article
Title:A systematic comparison on power block efficiencies for CSP plants with direct steam generation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hirsch, TobiasUNSPECIFIEDUNSPECIFIED
Khenissi, AbdallahUNSPECIFIEDUNSPECIFIED
Date:March 2014
Journal or Publication Title:Energy Procedia
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Publisher:Elsevier
ISSN:1876-6102
Status:Published
Keywords:Direct steam generation (DSG); internal reheat; direct reheat; power block; efficiency
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Line-Focusing Systems (old)
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research > Linienfokussierende Systeme
Deposited By: Khenissi, Abdallah
Deposited On:10 Dec 2014 09:31
Last Modified:06 Sep 2019 15:22

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