Advanced Concrete Steam Accumulation Tanks for Energy Storage for Solar Thermal Electricity
|Author/s||Prieto Ríos, Cristina
Pérez Osorio, David
Cabeza, Luisa F.
|Department||Universidad de Sevilla. Departamento de Ingeniería Energética|
|Abstract||Steam accumulation is one of the most effective ways of thermal energy storage (TES) for
the solar thermal energy (STE) industry. However, the steam accumulator concept is penalized by a
bad relationship between the ...
Steam accumulation is one of the most effective ways of thermal energy storage (TES) for the solar thermal energy (STE) industry. However, the steam accumulator concept is penalized by a bad relationship between the volume and the energy stored; moreover, its discharge process shows a decline in pressure, failing to reach nominal conditions in the turbine. From the economic point of view, between 60% and 70% of the cost of a steam accumulator TES is that of the pressure vessel tanks (deﬁned as US$/kWhth). Since the current trend is based on increasing hours of storage in order to improve dispatchability levels in solar plants, the possibility of cost reduction is directly related to the cost of the material of pressure vessels, which is a market price. Therefore, in the present paper, a new design for steam accumulation is presented, focusing on innovative materials developed speciﬁcally for this purpose: two special concretes that compose the accumulation tank wall. Study of dosages, selection of materials and, ﬁnally, scale up on-ﬁeld tests for their proper integration, fabrication and construction in prototype are the pillars of this new steam accumulation tank. Establishing clear and precise requirements and instructions for successful tank construction is necessary due to the highly sensitive and variable nature of those new concrete formulations.
|Funding agencies||Centro para el Desarrollo Tecnológico Industrial (CDTI)
Ministerio de Economia, Industria y Competitividad (MINECO). España
European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER)
Ministerio de Ciencia, Innovación y Universidades (MICINN). España
Agencia Estatal de Investigación. España
|Citation||Prieto Ríos, C., Pérez Osorio, D., González-Roubaud, E., Fereres, S. y Cabeza, L.F. (2021). Advanced Concrete Steam Accumulation Tanks for Energy Storage for Solar Thermal Electricity. Energies, 14 (13), 3896.|