Investigation of solar parabolic trough power plants with and without integrated TES (thermal energy storage) and FBS (fuel backup system) using thermic oil and solar salt

Boukelia, Taqiy Eddine; Mecibah, Mohamed-Salah; Kumar, Bohra Nitin; Reddy, K. S.

doi:10.1016/j.energy.2015.05.038

Cited by 84 publications

(20 citation statements)

References 28 publications

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“…Several architectures and thermal control mechanisms exist (González-Roubaud et al, 2017). The warmer loop typically uses thermal oils (Biencinto et al, 2014;Boukelia et al, 2015) or molten salts (Olivares, 2012;Flueckiger et al, 2013). TES consisting of liquid thermocline schemes (Qin et al, 2012;Flueckiger et al, 2013;Mostafavi Tehrani et al, 2017), liquid two-tank schemes (Bauer et al, 2013), and sensible solid media storage schemes (Niyas et al, 2015;Tiskatine et al, 2017) are also used and are sized to provide suitable amounts of thermal storage.…”

Section: Thermal Energy Storagementioning

confidence: 99%

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

et al. 2019

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Section: Thermal Energy Storagementioning

confidence: 99%

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

et al. 2019

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“…Meanwhile, 4 CSP systems with single scheme are considered as the references, namely, PT (SO), LF (DSG), Tower (MS), and Tower (DSG). [25][26][27] A CSP system is generally comprised of a solar field and a power block. According to the required stages of steam generation, ie, preheating, evaporation, superheating, and reheating, the concentrated solar thermal energy is introduced where it is appropriate.…”

Section: System Configurationsmentioning

confidence: 99%

Comprehensive assessment of line-/point-focus combined scheme for concentrating solar power system

2018

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Summary The line‐/point‐focus combined scheme for concentrating solar power (CSP) system is proposed. For solar field, the parabolic trough (PT) or linear Fresnel (LF) is used as the line‐focus preheating and evaporation stages while the solar tower is used as the point‐focus superheating and reheating stages. The combined schemes benefit from the high concentration ratio of point‐focus technology and low cost of line‐focus technology. Particularly, the combined scheme guarantees the concentrated solar thermal energy matching the temperature requirement of steam generation process with less exergy loss. Performance and economic assessments have been performed for 50 MWe CSP system with two of the combined schemes, ie, PT (synthetic oil, SO) + Tower (molten salt, MS) and LF (direct steam generation, DSG) + Tower (DSG), as well as existing single schemes being the references, ie, PT (SO), LF (DSG), Tower (MS), and Tower (DSG). The comparative results show that the combined schemes are superior to liner‐focus schemes in efficiency and to point‐focus schemes in capital cost and scalability. Specifically, the PT (SO) + Tower (MS) system suggests the favorable potential in practical application with the highest annual net solar‐to‐electrical energy conversion efficiency of 16.07% and the reasonable levelized cost of electricity (LCOE) of 16.121 US cent/(kW·h). This work provides an alternative guidance for future development of the CSP technology.

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“…To ensure a reliable and continuous power supply, TES represents a feasible solution that will ultimately help overcome the inconsistency of solar irradiance and boost the performance of solar‐based power plants. Multiple studies have been conducted by covering the performance and economics of solar power plants when integrated with TES . These studies cover the design and integration of TES within solar‐based plants; they also consider multiple plant arrangements where several HTFs are considered.…”

Section: Introductionmentioning

confidence: 99%

“…Another essential component in solar‐based power plants to ensure a stable supply of energy is backup boilers . These boilers ensure the stability of energy input supply to the system by compensating the supply shortage in cases of low/no solar input to the system.…”

Section: Introductionmentioning

confidence: 99%

Analysis of an innovative direct steam generation-based parabolic trough collector plant hybridized with a biomass boiler

2017

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Summary Direct steam generation (DSG) is the process by which steam is directly produced in parabolic trough fields and supplied to a power block. This process simplifies parabolic trough plants and improves cost effectiveness by increasing the permissible temperature of the working fluid. Similar to all solar‐based technologies, thermal energy storage is needed to overcome the intermittent nature of solar. In the present work, an innovative DSG‐based parabolic trough collector (PTC) plant hybridized with a biomass boiler is proposed and analyzed in detail. Two additional configurations comprising indirect steam generation PTC plants were also analyzed to compare their energy and exergy performance. To consider a wide range of operation, the share of biomass input to the hybridized system is varied. Energy and exergy analyses of DSG are conducted and compared with an existing indirect steam generation PTC power plants such as Andasol. The analyses are conducted on a 50 MW regenerative reheat Rankine cycle. The results obtained indicate that the proposed DSG‐based PTC plant is able to increase the overall system efficiency by 3% in comparison with indirect steam generation when linked to a biomass boiler that supplies 50% of the energy.

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Investigation of solar parabolic trough power plants with and without integrated TES (thermal energy storage) and FBS (fuel backup system) using thermic oil and solar salt

Cited by 84 publications

References 28 publications

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

Comprehensive assessment of line-/point-focus combined scheme for concentrating solar power system

Analysis of an innovative direct steam generation-based parabolic trough collector plant hybridized with a biomass boiler

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