Investigation of using molten salt as heat transfer fluid for dry cooled solar parabolic trough power plants under desert conditions

Trabelsi, Seif Eddine; Qoaider, Louy; Guizani, Amenallah

doi:10.1016/j.enconman.2017.10.101

Cited by 49 publications

(11 citation statements)

References 24 publications

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“…The country's reliance on coal poses the dilemma of how its energy security can be maintained and at the same time fulfil its commitment to the Paris Agreement on climate change. Radical change within the entire energy system is urgently needed [5,79].…”

Section: Overview Of the Energy Market In South Africamentioning

confidence: 99%

One technology, two pathways? Strategic Niche Management and the diverging diffusion of concentrated solar power in South Africa and the United States

Mirzania

Balta‐Ozkan

Marais

2020

Energy Research & Social Science

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The transition towards a low carbon energy system requires significant deployment of renewable energy technologies. Concentrated Solar Power (CSP) plants could contribute to a low carbon energy system, with an estimated potential global capacity of over 600 GW by 2030. Despite this potential, however, the CSP industry lags behind other renewable technologies, with only about 4% of its estimated global potential expected to be realised in the next decade. This paper investigates the reasons for this by comparing CSP in the US, where 60% of worldwide capacity is currently located, with South Africa, where its development has been slow despite an abundance of natural solar-energy resources. Using strategic niche management analysis, we identify replicable success factors that could accelerate the uptake of CSP projects in developing countries. The results reveal that the main reason for the successful diffusion and adoption of CSP in the US is consistent policy support, which has made it possible to bridge the gap between research and development and emerge in the market. By contrast, the development of CSP in South Africa has been hindered by several technical and economic problems, including a lack of technological expertise, resources and funding.

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Section: Overview Of the Energy Market In South Africamentioning

confidence: 99%

One technology, two pathways? Strategic Niche Management and the diverging diffusion of concentrated solar power in South Africa and the United States

Mirzania

Balta‐Ozkan

Marais

2020

Energy Research & Social Science

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“…However, A significant problem arises when thermal oil and molten nitrate salts are completely changed, the molten salts exhibit a significantly higher melting point with the risk of freezing and / or filling / drainage of the solar field tubes [5]. Trabelsi et al [6] simulated the study with using molten salt and Therminol VP 1 in PTC, they showed that when molten salt is used as working fluid, the average energy efficiency increased by 6% and the LCOE decreased by approximately 20% compared to Therminol VP-1.…”

Section: Introductionmentioning

confidence: 99%

Investigation of energetic and exergetic performances of parabolic trough collector with using different heat transfer fluids

Arslan

Günerhan

2019

E3S Web Conf.

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In this study energetic and exergetic performances of parabolic trough collector is theoretically investigated by using 120 l/min synthetic ‘’Dowtherm A’’ oil , 1200 l/min Air at 100 bar (10 MPa) and 150 l/min molten salt which is mixture of 60 wt% sodium nitrate (NaNO3) and 40 wt% potassium nitrate (KNO3) which are widely used as heat transfer fluids. Fluids performance comparisons were performed with the LS-2 module, which is used with vacuum in annulus and Cermet as a selective coating. LS-2 module has 7.8 m receiver length and is 39 m2 aperture area. As a result, the maximum exergy efficiency of the molten salt, synthetic oil, Air to be 41.19% at 422 °C, 40.82% at 400 °C, 40.33% at 402 °C, respectively. The maximum exergy of air is higher than other working fluids up to 310 ° C but after about 310 ° C the exergy of the molten salt is higher than the others. The molten salt has the best energy efficiency at its operating temperatures (250 °C to 550 °C) than other working fluids.

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“…In order to minimize the cost of electric power production of the CSP plant in hot arid regions, the system advisor model (SAM) software is used by Trabelsi et al [239] to optimize the size of PTC and steam turbine. They also investigated the utilization of therminol VP-1 and molten salt as heat transfer fluid in the solar circuit.…”

Section: Review Of Developments Of Solar Fieldmentioning

confidence: 99%

“…Their proposed plant is simulated by SAM software under the weather conditions of Tataouine, south region of Tunisia. The LCOE of the proposed system in the cases of wet and dry cooling are found to be 0.2139 and 0.1868 €/kWh, respectively.Recently, Trabelsi et al[239] used SAM software to simulate the CSP plant using PTC when two different types of HTF are used; Therminol VP-1 and Molten Salt. They found that the LCOE of the plant is 0.2017 $/kWh and 0.1615 $/kWh, when the Therminol VP-1 and molten salt are used as HTF, respectively.…”

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confidence: 99%

Renewable energy from solar, biomass and biofuels resources

Ibarhiam¹

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In the current study, the waste stones and rachis obtained from Barhee and Medjool dates palm trees were characterized on a laboratory scale and their potential as biomass feedstock were investigated. The proximate, ultimate, structure/composition and thermo-gravimetric analysis experiments were conducted to characterize the selected biomass materials. The results showed that the Medjool and Barhee stones are a promising biomass feedstock as they have high volatile and fixed carbon contents with low ash content. Moreover, they have high carbon and nitrogen contents with a very high cellulose contents reaching up to 66% in the case of Barhee stones. The thermo-gravimetric analysis showed that the decomposition of Barhee and Medjool stones can be completed below 420 °C; while it can be completed below 360 °C for Barhee and Medjool rachis under thermo-gravimetric pyrolysis analysis. Based on the TGA results obtained, slow pyrolysis experiments for the stones and rachis feedstock materials were conducted. Among the four slow pyrolysis trials, maximum yield for bio-oil of 21.54% was achieved when Barhee rachis was used, while Medjool rachis produced the least value. Characterization and analysis of the bio-oil extracted from the pyrolysis experiments showed the superiority of the bio-oil from Barhee stone as it has the highest heating value. The gas chromatography mass spectrometry analysis showed that phenol, furfural and benzoic acid are the main components of the bio-oil obtained from the date palm rachis samples while d-allose, furfural, 5-methyl 2-furancarboxaldehyde, and dodecanoic acid are the main components of the bio-oil extracted from the date palm stones. The opportunities of exploitation of renewable energy with solar, biomass and biofuels resources in the Middle East, are also reviewed in detail in this work. The techno-economic analysis for the concentrating solar power plants installed in the Middle East showed promising potential from the economic and technical point of view.

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Investigation of using molten salt as heat transfer fluid for dry cooled solar parabolic trough power plants under desert conditions

Cited by 49 publications

References 24 publications

One technology, two pathways? Strategic Niche Management and the diverging diffusion of concentrated solar power in South Africa and the United States

One technology, two pathways? Strategic Niche Management and the diverging diffusion of concentrated solar power in South Africa and the United States

Investigation of energetic and exergetic performances of parabolic trough collector with using different heat transfer fluids

Renewable energy from solar, biomass and biofuels resources

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