Numerical simulation and design of multi-tower concentrated solar power fields

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dc.contributor.authorHussaini, Zaharaddeen Ali
dc.contributor.authorKing, Peter
dc.contributor.authorSansom, Christopher L.
dc.date.accessioned2020-03-23T16:07:08Z
dc.date.available2020-03-23T16:07:08Z
dc.date.issued2020-03-19
dc.description.abstractIn power tower systems, the heliostat field is one of the essential subsystems in the plant due to its significant contribution to the plant’s overall power losses and total plant investment cost. The design and optimization of the heliostat field is hence an active area of research, with new field improvement processes and configurations being actively investigated. In this paper, a different configuration of a multi-tower field is explored. This involves adding an auxiliary tower to the field of a conventional power tower Concentrated Solar Power (CSP) system. The choice of the position of the auxiliary tower was based on the region in the field which has the least effective reflecting heliostats. The multi-tower configuration was initially applied to a 50MWth conventional field in the case study region of Nigeria. The results from an optimized field show a marked increase in the annual thermal energy output and mean annual efficiency of the field. The biggest improvement in the optical efficiency loss factors be seen from the cosine, which records an improvement of 6.63%. Due to the size of the field, a minimal increment of 3020 MWht in the Levelized Cost of Heat (LCOH) was, however, recorded. In much larger fields, though, a higher number of weaker heliostats were witnessed in the field. The auxiliary tower in the field provides an alternate aim point for the weaker heliostat, thereby considerably cutting down on some optical losses, which in turn gives rise to higher energy output. At 400MWth, the multi-tower field configuration provides a lower LCOH than the single conventional power tower field.en_UK
dc.identifier.citationHussaini ZA, King P, Sansom C. (2020) Numerical simulation and design of multi-tower concentrated solar power fields. Sustainability, Volume 12, Isssue 6, March 2020, Article number 2402en_UK
dc.identifier.cris26537409
dc.identifier.issn2071-1050
dc.identifier.urihttps://doi.org/10.3390/su12062402
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/15321
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectconcentrated solar poweren_UK
dc.subjectfield layouten_UK
dc.subjectheliostat fielden_UK
dc.subjectmulti-tower fielden_UK
dc.titleNumerical simulation and design of multi-tower concentrated solar power fieldsen_UK
dc.typeArticleen_UK

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