Proof of Concept Test of a Centrifugal Particle Receiver

Wu, Wei; Amsbeck, Lars; Buck, Reiner; Uhlig, Ralf; Ritz-Paal, R.

doi:10.1016/j.egypro.2014.03.060

Cited by 72 publications

(44 citation statements)

References 7 publications

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“…Varying the rotation speed allows control of the particle flow and adaptation of mass flow to the actual solar power input, ensuring a constant outlet temperature as high as 1000°C [3]. Fig.…”

Section: Centrifugal Solid Particle Receivermentioning

confidence: 99%

“…2 depicts the operation of the solar system together with a recuperated gas turbine. A promising particle receiver concept suitable for this system is the centrifugal particle receiver (CentRec) [3]. Fig.2.…”

Section: The Cyclementioning

confidence: 99%

“…The CentRec particle receiver concept, developed by the DLR [3] uses a rotating receiver where particles are introduced at its top and exposed to radiation as they flow with gravity to the outlet below, while being held against the cylindrical receiver's wall as a thin layer by the centripetal force applied by the chamber wall. Varying the rotation speed allows control of the particle flow and adaptation of mass flow to the actual solar power input, ensuring a constant outlet temperature as high as 1000°C [3].…”

Section: Centrifugal Solid Particle Receivermentioning

confidence: 99%

See 2 more Smart Citations

Solar Gas Turbine Systems with Centrifugal Particle Receivers, for Remote Power Generation

et al. 2015

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There is a growing demand from remote communities in Australia to increase the amount of decentralised renewable energy in their energy supply mix in order to decrease their fuel costs. In contrast to large scale concentrated solar power (CSP) plants, small solar-hybrid gas turbine systems promise a way to decentralise electricity generation at power levels in the range of 0.1-10MW e , and reduce to cost of energy production for off-grid, isolated communities. Thermal storage provides such CSP systems with an advantage over photovoltaic (PV) technology as this would be potentially cheaper than adding batteries to PV systems or providing stand-by back-up systems such as diesel fuelled generators. Hybrid operation with conventional fuels and solar thermal collection and storage ensures the availability of power even if short term solar radiation is not sufficient or the thermal storage is empty. This paper presents initial modelling results of a centrifugal receiver (CentRec) system, using hourly weather data of regional Australia for a 100kW e microturbine as well as a more efficient and cost effective 4.6MW e unit. The simulations involve calculation and optimisation of the heliostat field, by calculating heliostat by heliostat annual performance. This is combined with a model of the receiver efficiency based on experimental figures and a model of the particle storage system and turbine performance data. The optimized design for 15 hours of thermal storage capacity results in a tower height of 35m and a solar field size of 2100m 2 for the 100kW e turbine, and a tower height of 115m and solar field size of 50 000m 2 for the 4.6MW e turbine. The solar field provides a greater portion of the operational energy requirement for the 100kWe turbine, as the TIT of the 4.6MW e turbine (1150°C) is greater than what the solar system can provide. System evaluations of the two particle receiver systems, with a selection of cost assumptions, are then compared to the current conventional means of supplying energy in such remote locations.

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Section: Centrifugal Solid Particle Receivermentioning

confidence: 99%

Section: The Cyclementioning

confidence: 99%

Section: Centrifugal Solid Particle Receivermentioning

confidence: 99%

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Solar Gas Turbine Systems with Centrifugal Particle Receivers, for Remote Power Generation

et al. 2015

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“…The optical performance of the solar field was calculated using the DLR software HFLCal [17] while thermodynamic relationships and supplier information were used to model thermal and other performance losses at every macro-component of the system. The CentRec receiver model was developed using simulation tools and results from DLR experimental results [2]. The costs used in the system design and optimisation are shown in Table 1.…”

Section: Particle Receiver System Modelmentioning

confidence: 99%

“…A solar system with incorporated energy storage will significantly decrease the annual fuel requirement, as solar operation hours and capacity factor (CF) can be significantly increased. A recently developed solid particle receiver, CentRec system [2], appears to meet the requirements for stable and efficient hybridization of a coal fired power station.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Solar and Coal-fired Steam Power Plant with Air Preheating Using a Centrifugal Solid Particle Receiver

et al. 2015

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Coal power stations have been hybridised with concentrated solar thermal (CST) fields which produce feedwater or with turbine bleed steam (TBS) heating from direct linear Fresnel to steam technology. This paper assesses solar hybridisation of boiler based steam power plants, which preheat boiler combustion air with a novel high temperature CST system based on a solid particle receiver (SPR). This new method of preheating has the potential to increase the solar share of the overall system, improve fuel saving and therefore produce a higher solar to electric conversion efficiency. These benefits result from the SPR solar systems higher operating temperature and integrated thermal storage. The integrated thermal storage also allows a buffered response time for handling transients in the intermittent solar resource. Analysis indicates that air-solarisation of coal plants can result in significantly higher solar to electric conversion efficiency than existing solar hybridisation options. Solarisation by TBS decreases power cycle efficiency due to bleed steam reduction, while solarisation by air-preheating increases the power system efficiency, primarily due to enhanced boiler efficiency brought about by reduced stack losses.The air solarisation option proposed in this paper has been compared to current TBS with Fresnel based technology. The comparison was conducted by modelling both systems and analysing the thermodynamic heat and mass balance of the steam cycle and boiler using EBSILON®Professional software. Annual simulation tools, which calculate the performance of the solar field, receiver, storage (when applicable) and other system components, were used to model the output of the solar technologies. These tools, coupled with available economic data and cost models for the newly developed solar components, were used to calculate the levelized cost of energy of the compared hybridisation options. It was calculated that the levelized cost of the solar electricity produced by the SPR system was approximately 59% the electricity produced by the Fresnel hybridisation.

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Solid particle solar receivers in the next‐generation concentrated solar power plant

Nie

Bai

Wang

et al. 2022

EcoMat

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Solid particles are generally considered to be the most suitable heat transfer fluid (HTF) and thermal energy storage (TES) materials for the next‐generation concentrated solar power (CSP) plant. The operating temperature of the solar receiver can be raised to exceed 800°C by the application of appropriate solid particles. In this way, power conversion efficiencies greater than 50% can be achieved with the supercritical carbon dioxide (sCO2) Brayton cycle. Solid particle solar receiver (SPSR) is the key equipment to absorb the concentrated solar flux, and its thermal performance is remarkably affected by receiver system designs, particle flow characteristics, and properties of solid particulate materials. This paper provides an in‐depth review of various SPSR technologies, as well as pertinent solid particle selections, optimization of the receiver system structures, particle flow characteristics, and heat transfer characteristics. The technical drawbacks, the large‐scale development prospects, and the potential optimization strategies of the various SPSR designs are highlighted by the comparative analysis of multiple parameters.

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Proof of Concept Test of a Centrifugal Particle Receiver

Cited by 72 publications

References 7 publications

Solar Gas Turbine Systems with Centrifugal Particle Receivers, for Remote Power Generation

Solar Gas Turbine Systems with Centrifugal Particle Receivers, for Remote Power Generation

Hybrid Solar and Coal-fired Steam Power Plant with Air Preheating Using a Centrifugal Solid Particle Receiver

Solid particle solar receivers in the next‐generation concentrated solar power plant

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