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Solar Tower System Temperature Range Optimization for Reduced LCOE

Buck, Reiner and Giuliano, Stefano (2019) Solar Tower System Temperature Range Optimization for Reduced LCOE. In: 24th SolarPACES International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2018, 2126 (030010), 030010-1. AIP Publishing. SolarPACES 2018, 2.-5. Oct. 2018, Casablanca, Morocco. doi: 10.1063/1.5117522. ISSN 0094-243X.

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Official URL: https://aip.scitation.org/doi/pdf/10.1063/1.5117522?class=pdf

Abstract

New heat transfer and storage media offer for solar tower systems a much broader temperature range. Higher temperatures allow the integration of steam power cycles with increased efficiency. The present study evaluates modular solar tower plants using solid particles as heat transfer medium (HTM), allowing temperatures up to 1000°C. In a parameter study the influence of upper and lower HTM temperature on levelized cost of electricity (LCOE) is evaluated. The results show a significant impact of the HTM temperature selection, mainly governed by the HTM temperature difference. A high temperature difference results in reduced LCOE. The most important factors for this reduction are the cost decrease of particle inventory, storage containment, and particle steam generator. This decrease is partially offset by an increase in heliostat field and tower cost. The results indicate that the use of solid particles for high efficiency steam power cycles offers unique advantages due to the wide temperature range of the particles.

Item URL in elib:https://elib.dlr.de/125254/
Document Type:Conference or Workshop Item (Speech)
Title:Solar Tower System Temperature Range Optimization for Reduced LCOE
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Buck, ReinerUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giuliano, StefanoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:26 July 2019
Journal or Publication Title:24th SolarPACES International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2018
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:2126
DOI:10.1063/1.5117522
Page Range:030010-1
Publisher:AIP Publishing
Series Name:AIP Conference Proceedings
ISSN:0094-243X
Status:Published
Keywords:Power Cycle; Solar Receiver; Heliostat Field; Particle Transport System
Event Title:SolarPACES 2018
Event Location:Casablanca, Morocco
Event Type:international Conference
Event Dates:2.-5. Oct. 2018
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Advanced Heat Transfer Media (old)
Location: Stuttgart
Institutes and Institutions:Institute of Solar Research > Solartowersystems
Deposited By: Uhlig, Tamara
Deposited On:17 Dec 2018 16:12
Last Modified:09 Mar 2022 14:32

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