Luo, Y, Du, X and Wen, D (2015) Novel design of central dual-receiver for solar power tower. Applied Thermal Engineering, 91. pp. 1071-1081. ISSN 1359-4311
Abstract
A novel dual-receiver with a surrounding solar field was proposed to improve the efficiency of a solar power tower (SPT). The new design combined an external and a cavity receiver, corresponding to the boiling and superheating sections respectively, and provided a simple yet controllable heat flux distribution on both sections. A case study of a 11 MW solar power plant was conducted. It was demonstrated that the present dual-receiver could produce superheated steam of 515 °C and 10.7 MPa at an impressive solar heat absorbing efficiency of 86.55%. By considering various heat losses, the surface heat flux, the surface temperature and the heat transfer fluid distribution were obtained for the dual-receiver. A comparison with a two-external cylindrical receiver showed that the present design could improve the global thermal efficiency by 3.2%. Off-design performance of the dual-receiver indicated that the plant performance was affected significantly by the incident solar fluxes at different times of a day. The influence of heat transfer tube size suggested that an optimized tube diameter for the superheating section of the present dual-receiver should be used.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015, Elsevier Ltd. This is an author produced version of a paper published in Applied Thermal Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Solar power tower; Dual-receiver; Heliostat field; Heat loss |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 29 Feb 2016 11:42 |
Last Modified: | 04 Nov 2016 00:10 |
Published Version: | http://dx.doi.org/10.1016/j.applthermaleng.2015.08... |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.applthermaleng.2015.08.074 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:94734 |