Design Features and Control Concepts of ALSTOM Molten Salt Receiver

Das, Apurba Kumar; Iñigo, P.; Terdalkar, R.; Joshi, Amey; Wang, C.; Clark, Mark M.; McGrane, D.; Deng, Li

doi:10.1016/j.egypro.2015.03.040

Cited by 12 publications

(6 citation statements)

References 2 publications

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“…The receiver design considered in this work originates from General Electric (GE) and relates to the one presented by ALSTOM (Das et al, 2015). Similar to other commercial designs, this receiver is subdivided into two independently operated parallel flow paths.…”

Section: Drainable Receiver Modelmentioning

confidence: 99%

Advanced two phase flow model for transient molten salt receiver system simulation

et al. 2022

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Section: Drainable Receiver Modelmentioning

confidence: 99%

Advanced two phase flow model for transient molten salt receiver system simulation

et al. 2022

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“…Molten salts prove to be a substitute for HTF use as they reduce the total cost of plant operation and also improve its capabilities. [29] The ALSTOM central receiver based on molten salts i.e. the solar energy onto the MCSR (molten salt central receiver) optimally positioned on the top of tower in the heliostat field.…”

Section: Molten-salts In the Solar Tower Powersmentioning

confidence: 99%

Solar Tower Power: The Impact of External Receiver on Optimal Performance and Energy Storage

Shatnawi,

Lim,

Ismail

2019

IJEAT

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An external receiver was seen as a major component of the Solar Tower Power (STP) plant. This generated stable power from concentrated sunlight. However, the flux distribution on its surface was an issue related to the external receiver that could affect the performance and energy storage in STP. The heat flux increased during long-term use, failure reduction, receiver efficiency and performance. The main advantage of the STP structure was its substantial heat storage capacity which allowed the system to generate stable and continuous electric power. In this study, the researchers reviewed existing literature to investigate the effect of the STP external receiver on the optimum energy storage and performance of the STP; especially regarding the solar flux distribution and efficiency. The researchers aim to improve the external receiver’s optimal performance without affecting the incident heat fluxes. The literature review indicates that ideal receiver conditions lead to solar energy flux distribution optimal performance. Therefore, system optimisation was necessary to satisfy all limitations; like loss occurring due to heliostat field, solar flux flow patterns, external tubular receiver designs, and Heat Transfer Fluid (HTF) selection. These limitations, along with factors affecting these limitations, are reviewed in this study.

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“…The VVR consists on a receiver with the same characteristics as the TETR. Additionally, each header is divided in two independent headers as the receiver proposed by Das et al [14], called Alstom Receiver (AR). The new receiver has two inlets and two outlets headers per panel; each pair of headers connects half the number of tubes than the original panel of the TETR (30 tubes).…”

Section: Receiver Configurationmentioning

confidence: 99%

Feasibility study of a new concept of solar external receiver: Variable velocity receiver

Rodríguez-Sánchez

Sánchez-González

Santana

2018

Applied Thermal Engineering

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The deployment of new solar power tower plants mainly depends on becoming costcompetitive with traditional forms of electricity generation. The solar field represents around 40% of the solar power tower investment cost, thus the cost reduction of such subsystems is mandatory to achieve that goal. This reduction could be done by increasing the solar flux intercepted by the receiver, which would increase the peak flux. Therefore, new concepts of solar receivers are required to accommodate such high peak flux.The proposed receiver, which withstands high peak flux, consists on a Traditional External Tubular Receiver (TETR) equipped with valves that allow the division of each panel of the receiver in two independent panels, increasing the velocity of the heat transfer fluid in specific zones of the receiver. This receiver configuration, named Variable Velocity Receiver (VVR), avoids tube overheating. Moreover, this novel receiver allows more concentrated aiming strategies, which increases the optical efficiency of the solar field and permits to reduce the number of heliostats in the field. Given a specific generation capacity, the size of the solar field required by a VVR is 12.5% smaller in comparison to a TETR.Such efficiency improvement has a negligible effect in tube mechanical stresses; even though pressure drop and parasitic consumption of the power plant increase. This new receiver configuration also gains hours of operation, even in winter: in hours with low solar irradiance all the panels can be split in two, increasing the number of passes and the velocity of the heat transfer fluid and accomplishing the transition from laminar to turbulent regime. Therefore, this receiver is able to reduce the levelized cost of energy.

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Design Features and Control Concepts of ALSTOM Molten Salt Receiver

Cited by 12 publications

References 2 publications

Advanced two phase flow model for transient molten salt receiver system simulation

Advanced two phase flow model for transient molten salt receiver system simulation

Solar Tower Power: The Impact of External Receiver on Optimal Performance and Energy Storage

Feasibility study of a new concept of solar external receiver: Variable velocity receiver

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