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Integration of Solar Process Heat into an Existing Thermal Desalination Plant in Qatar

Dieckmann, Simon and Krishnamoorthy, Ganesh and Aboumadi, Mahmoud and Pandian, Yuvaraj and Dersch, Jürgen and Krüger, Dirk and Al-Rasheed, Abdulsattar and Krüger, Joachim and Ottenburger, Ulrich (2016) Integration of Solar Process Heat into an Existing Thermal Desalination Plant in Qatar. AIP Conference Proceedings, 1734 (140001). American Institute of Physics (AIP). doi: 10.1063/1.4949231. ISSN 0094-243X.

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The water supply of many countries in the Middle East relies mainly on water desalination. In Qatar, the water network is completely fed with water from desalination plants. One of these power and desalination plants is located in Ras Abu Fontas, 20 km south of the capital Doha. The heat required for thermal desalination is provided by steam which is generated in waste heat recovery boilers (HRB) connected to gas turbines. Additionally, gas fired boilers or auxiliary firing in the HRBs are used in order to decouple the water generation from the electricity generation. In Ras Abu Fontas some auxiliary boilers run 24/7 because the HRB capacity does not match the demand of the desalination units. This paper contains the techno-economic analysis of two large-scale commercial solar field options, which could reduce the fuel consumption significantly. Both options employ parabolic trough technology with a nominal saturated steam output of 350 t/h at 15 bar (198°C, 240 MW). The first option uses direct steam generation without storage while the second relies on common thermal oil in combination with a molten salt thermal storage with 6 hours full-load capacity. The economic benefit of the integration of solar power depends mainly on the cost of the fossil alternative, and thus the price (respectively opportunity costs) of natural gas. At a natural gas price of 8 US-$/MMBtu the internal rate of return on equity (IRR) is expected at about 5%.

Item URL in elib:https://elib.dlr.de/108721/
Document Type:Article
Title:Integration of Solar Process Heat into an Existing Thermal Desalination Plant in Qatar
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Dieckmann, SimonUNSPECIFIEDhttps://orcid.org/0000-0002-9504-8626UNSPECIFIED
Krishnamoorthy, Ganeshqatar electricity and water companyUNSPECIFIEDUNSPECIFIED
Aboumadi, Mahmoudqatar electricity and water companyUNSPECIFIEDUNSPECIFIED
Dersch, JürgenUNSPECIFIEDhttps://orcid.org/0000-0003-0346-1235UNSPECIFIED
Krüger, DirkUNSPECIFIEDhttps://orcid.org/0000-0002-8691-1141UNSPECIFIED
Al-Rasheed, Abdulsattarqatar electricity and water companyUNSPECIFIEDUNSPECIFIED
Krüger, Joachimsolarlite gmbhUNSPECIFIEDUNSPECIFIED
Ottenburger, Ulrichal nasr holding co. wllUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:AIP Conference Proceedings
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Publisher:American Institute of Physics (AIP)
Keywords:Desalination, CSP, Parabolic Trough, Solar Thermal, Solar
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Thermal Technology
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Advanced Heat Transfer Media (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Linienfokussierende Systeme
Deposited By: Dieckmann, Simon
Deposited On:05 Dec 2016 12:37
Last Modified:06 Nov 2023 08:54

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