Biomass and central receiver system (CRS) hybridization: Volumetric air CRS and integration of a biomass waste direct burning boiler on steam cycle

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Bruno Coelho (Author) FEUP; Peter Schwarzbözl (Author) Other; Armando Oliveira (Author) FEUP; Adélio Mendes (Author) FEUP

Journal

Title: Solar Energy

Vol. 86 No. 10

Pages: 2912-2922

ISSN: 0038-092X

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 24 Citations

ISI Web of Science

Scopus - 26 Citations

INSPEC

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Associated Projects

PEst-C/EQB/UI0511/2011 - PROJECTO ESTRATÉGICO - UI 511 - 2011-2012

Other information

Authenticus ID: P-002-520

DOI: 10.1016/j.solener.2012.06.009

Abstract (EN): Concentrated solar power (CSP) plants generate an almost continuous flow of fully dispatchable "renewable" electricity and can replace the present fossil fuel power plants for base load electricity generation. Nevertheless, actual CSP plants have moderate electricity costs, in most cases quite low capacity factors and transient problems due to high inertia. Hybridization can help solve these problems and, if done with the integration of forest waste biomass, the "renewable" goal can be maintained, with positive impact on forest fire reduction. Local conditions, resources and feed in tariffs have great impact on the economical and technical evaluation of hybrid solutions; one of the premium European locations for this type of power plants is the Portuguese Algarve region. Due to the concept innovation level, conservative approaches were considered to be the best solutions. In this perspective, for a lower capital investment 4 MWe power plant scale, the best technical/economical solution is the hybrid CRS/biomass power plant HVIB3S4s with CS3 control strategy. It results in a levelized electricity cost (LEC) of 0.146 (sic)/kWh, with higher efficiency and capacity factor than a conventional 4 MWe CRS. A larger 10 MWe hybrid power plant HVIB3S10s could generate electricity with positive economical indicators (LEC of 0.108 (sic)/kWh and 1RR of 11.0%), with twice the annual efficiency (feedstock to electricity) and lower costs than a conventional 4 MWe CRS. It would also lead to a 17% reduction in biomass consumption (approximately 12,000 tons less per year) when compared with a typical 10 MWe biomass power plant - FRB10; this would be significant in the case of continuous biomass price increase.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11