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Atribución-NoComercial-SinDerivadas 3.0 España
Abstract:
The present dissertation has as its objective the description of the design and
production analysis of a complex system comprising a 20 MW concentrated solar
power plant with biomass support system and an advanced wastewater treatment
facility. This large sThe present dissertation has as its objective the description of the design and
production analysis of a complex system comprising a 20 MW concentrated solar
power plant with biomass support system and an advanced wastewater treatment
facility. This large scale engineering project is to be installed in Fuentes de
Andaluc a, a town located 57 km away from the Spanish province of Seville, with
the purpose of evaluating the viability of this kind of power plants in one of the
most water and energy demanding areas of the Iberian Peninsula.
Hybrid power plants appear as a present solution with a promising future due to
its electrical manageability, which enables the storage and regulation of energy
production. Central receiver technology allows to work at higher temperatures
arising from its greater concentration ratios and reducing at the same time the
size and cost of storage systems. Likewise, molten salts system represent one of the
most e ective technologies for electricity generation with respect to costs. Hybrid
power plants entail a bright alternative to increment the energetic production at
a relatively low additional cost with fewer pollutant emissions.
The solar block of our power plant consists of a heliostats eld controlled to
concentrate the incoming solar radiation towards a receiver located at the top
of a tower. Molten salts sent through the receiver work as the heat transfer
uid
collecting the thermal energy used to generate electricity. For its part, the biomass
block uses olive pomace as biomass material to serve as a backup for the power
plant when necessary. Major components of a central receiver power station are
de ned and selected as well as the most suitable con guration for each part of the
generation plant.
Similarly, the implementation of a direct potable reuse facility enhances the
renewable potential of this project. The idea is that, urban sewage from the region
is collected and subjected to a series of puri cation procedures until it becomes
drinkable water ready to be directly blended into the potable distribution system.
A speci c treatment train is proposed to ful l the desired water requirements and
a sensitivity analysis is carried out in order to determine the feasibility of this kind
of regeneration systems.
Once the main components of the power plant have been de ned and taking into
account the data of solar irradiation at this speci c location, outcomes show that
the plant is capable of generating 20 MW of electric power. Assuming a capacity
factor of 85% and the use of biomass, the operation period of the plant reaches a
value of 7446 hours per year. Regarding these gures the annual electric production
of the solar power plant can be calculated supplying the region with 148,92 GWh
and avoiding the emission of tons of CO2 into the atmosphere.
Furthermore, an exergetic and economic analysis of the power plant are conducted.[+][-]