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ECONOMIC ANALYSIS OF MODULAR STORAGE OPERATION CONCEPTS AND LIFE CYCLE ASSESSMENT OF CONCRETE THERMAL ENERGY STORAGE FOR PARABOLIC TROUGH POWER PLANTS

Laing, Doerte and Steinmann, Wolf-Dieter and Viebahn, Peter and Gräter, Frieder and Bahl, Carsten (2008) ECONOMIC ANALYSIS OF MODULAR STORAGE OPERATION CONCEPTS AND LIFE CYCLE ASSESSMENT OF CONCRETE THERMAL ENERGY STORAGE FOR PARABOLIC TROUGH POWER PLANTS. 14th SolarPACES Symposium, 2008-03-04 - 2008-03-07, Las Vegas, NV (USA).

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Abstract

For parabolic trough power plants using synthetic oil as the heat transfer medium, the application of solid media sensible heat storage is an attractive option in terms of investment and maintenance costs. One important aspect in storage development is the storage integration into the power plant. A modular operation concept for thermal storage systems was previously suggested by DLR, showing an increase in storage capacity of more than 100 %. However, in these investigations, the additional costs needed to implement this storage concept into the power plant, like for extra piping, valves, pumps and control had not been considered. These aspects are discussed in this paper, showing a decrease of levelized energy costs with modular storage integration of 2 to3 %. In a Life Cycle Assessment (LCA) a comparison of an AndaSol-I type solar thermal power plant [1] with the original two-tank molten salt storage and with a “hypothetical” concrete storage shows an advantage of the concrete storage technology concerning environmental impacts. The environmental impacts of the “hypothetical” concrete based AndaSol-I decrease by 7 %, considering 1 kWh of solar electricity delivered to the grid. Regarding only the production of the power plant, the emissions decrease by 9.5 %.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:ECONOMIC ANALYSIS OF MODULAR STORAGE OPERATION CONCEPTS AND LIFE CYCLE ASSESSMENT OF CONCRETE THERMAL ENERGY STORAGE FOR PARABOLIC TROUGH POWER PLANTS
Authors:
AuthorsInstitution or Email of Authors
Laing, DoerteUNSPECIFIED
Steinmann, Wolf-DieterUNSPECIFIED
Viebahn, PeterUNSPECIFIED
Gräter, FriederFlagsol GmbH
Bahl, CarstenEd. Züblin AG
Date:March 2008
Refereed publication:Yes
In ISI Web of Science:No
Status:Published
Keywords:Thermal Energy Storage, Solid Media, Concrete, Modular Operation Concept, Life Cycle Assessment, Parabolic Trough Power Plant
Event Title:14th SolarPACES Symposium
Event Location:Las Vegas, NV (USA)
Event Type:international Conference
Event Dates:2008-03-04 - 2008-03-07
Organizer:SolarPACES
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Thermische Energiespeicher (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Thermal Process Technology
Deposited By: Dörte Laing
Deposited On:16 Dec 2008
Last Modified:12 Dec 2013 20:34

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