High-temperature, point-focus, pressurised gas-phase solar receivers: A comprehensive review

Sedighi, Mohammadreza; Padilla, Ricardo Vásquez; Taylor, Robert A.; Lake, Maree; Izadgoshasb, Iman; Rose, Arthur W.

doi:10.1016/j.enconman.2019.02.020

Cited by 72 publications

(22 citation statements)

References 240 publications

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“…Inside the cavity, the HTF (CO2) passes through a set of pressurised tubes absorbing the solar radiation. These tubes could be made of SiC [27] or a nickel-based alloy (Inconel 617), as in the case of the solar receiver at the SOLUGAS project (4.7 MWe), where compressed air was heated from 330ºC to 800ºC. In SOLUGAS, the design consisted of 10 circular arranged panels, each one equipped with 17 Inconel absorber tubes of 5m radiated length [16].…”

Section: A Novel Concept For a Solar Combined Cycle With Energy Storagementioning

confidence: 99%

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Increasing the solar share in combined cycles through thermochemical energy storage

Ortíz

Chacartegui

Carro

et al. 2021

Energy Conversion and Management

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Concentrating Solar Power (CSP) plants allow green and dispatchable electricity production. Novel process schemes combining high solar-to-electric performance with an optimum integration of cheap and environmentally friendly storage systems are key for the massive deployment of solar plants. The integration of solar energy in combined cycles, as the most efficient thermal power cycles, is gaining momentum. Combined cycles require high temperature (typically higher than 1000ºC), which does not allow the operation of the solar combined cycle at night by integrating the current commercial thermal storage systems (molten salts-based system maximum temperature is limited to ~600ºC). Thus, solar power share in current Integrated Solar Combined Cycles (ISCC) is typically lower than 20%, while natural gas is used to provide most of the thermal power required. Under this scenario, the promising Thermochemical Energy Storage (TCES), capable of operating at high temperatures with high yields, provide a high potential to increase the solar share since the solar energy stored can be released at temperatures above 1000ºC, allowing electricity production in a combined cycle even without solar radiation or other fuel input. Among TCES systems to be integrated into CSP plants, the Calcium-Looping (CaL) process is gaining momentum due to a high energy density, abundant and cheap raw material (limestone) and its high turning temperature. This paper proposes the novel concept of a High Temperature Storage Solar Combined Cycle (HTSSCC) based on the integration of a TCES system. A model has been developed for simulating the proposed plant. Results show overall plant efficiencies higher than 45% (excluding solar side losses), which suggests a high potential for the development of this novel integration.

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Section: A Novel Concept For a Solar Combined Cycle With Energy Storagementioning

confidence: 99%

“…While CO2 has been chosen as HTF circulating through the combined cycle, air or Helium are possible alternatives. Using air as HTF is a mature and efficient option, which is the basis of both commercial combined cycles [50] and pressurised solar gas receivers [27].…”

Section: Effect Of the Heat Transfer Fluid (Htf)mentioning

confidence: 99%

Increasing the solar share in combined cycles through thermochemical energy storage

Ortíz

Chacartegui

Carro

et al. 2021

Energy Conversion and Management

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“…Using renewable macroenergy harvesting systems like solar energy [1][2][3][4][5][6] or wind energy [7][8][9][10] has become popular over the past few decades. In recent years, the advancement of new methods and applications of wireless networks drives the demand on microenergy harvesting for continuous power supply [11].…”

Section: Introductionmentioning

confidence: 99%

Performance Enhancement of a Multiresonant Piezoelectric Energy Harvester for Low Frequency Vibrations

et al. 2019

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Harvesting electricity from low frequency vibration sources such as human motions using piezoelectric energy harvesters (PEH) is attracting the attention of many researchers in recent years. The energy harvested can potentially power portable electronic devices as well as some medical devices without the need of an external power source. For this purpose, the piezoelectric patch is often mechanically attached to a cantilever beam, such that the resonance frequency is predominantly governed by the cantilever beam. To increase the power generated from vibration sources with varying frequency, a multiresonant PEH (MRPEH) is often used. In this study, an attempt is made to enhance the performance of MRPEH with the use of a cantilever beam of optimised shape, i.e., a cantilever beam with two triangular branches. The performance is further enhanced through optimising the design of the proposed MRPEH to suit the frequency range of the targeted vibration source. A series of parametric studies were first carried out using finite-element analysis to provide in-depth understanding of the effect of each design parameters on the power output at a low frequency vibration. Selected outcomes were then experimentally verified. An optimised design was finally proposed. The results demonstrate that, with the use of a properly designed MRPEH, broadband energy harvesting is achievable and the efficiency of the PEH system can be significantly increased.

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“…25,26 However, the necessity to enhance the efficiency of photothermal conversion of concentrating solar collectors claims to increase operating temperature of solar absorbers. For example, in concentrating solar power systems with gas-phase central heat receivers operating temperature can reach 1000 • C. 27 At the same time, annealing above 900 • C results in spinodal decomposition of the metastable supersaturated Ti 1−x Al x N solid solution into TiN-and AlN-rich cubic domains. The metastable fcc AlN domains further transform into a stable hexagonal close packed AlN wurtzite phase with a pronounced volume increase of ∼24%.…”

Section: Introductionmentioning

confidence: 99%

Chemical Bonding Analysis in Ti1-x-yAlxTayN Solid Solutions

Eremeev¹,

Shugurov²

2019

Preprint

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High-temperature, point-focus, pressurised gas-phase solar receivers: A comprehensive review

Cited by 72 publications

References 240 publications

Increasing the solar share in combined cycles through thermochemical energy storage

Increasing the solar share in combined cycles through thermochemical energy storage

Performance Enhancement of a Multiresonant Piezoelectric Energy Harvester for Low Frequency Vibrations

Chemical Bonding Analysis in Ti1-x-yAlxTayN Solid Solutions

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