Thermoeconomic analysis of a solar enhanced energy storage concept based on thermodynamic cycles

被引：53

作者：

Henchoz, Samuel ^{[1
]}

Buchter, Florian ^{[2
]}

Favrat, Daniel ^{[1
]}

Morandin, Matteo ^{[1
]}

Mercangoez, Mehmet ^{[2
]}

机构：

[1] Ecole Polytech Fed Lausanne, Ind Energy Syst Lab, Stn 9, CH-1015 Lausanne, Switzerland

[2] ABB Switzerland Ltd, Corp Res, CH-5405 Baden, Switzerland

来源：

ENERGY | 2012年 / 45卷 / 01期

关键词：

Thermoeconomy; Energy storage; Thermodynamic cycles; Heat-pump; Heat-engine; Solar energy; LATENT-HEAT; FUSION; ICE;

D O I：

10.1016/j.energy.2012.02.010

中图分类号：

O414.1 [热力学];

学科分类号：

070201 [理论物理];

摘要：

Large scale energy storage may play an increasingly important role in the power generation and distribution sector, especially when large shares of renewable energies will have to be integrated into the electrical grid. Pumped-hydro is the only large scale storage technology that has been widely used. However the spread of this technology is limited by geographic constraints. In the present work, a particular implementation of a storage concept based on thermodynamic cycles, invented by ABB Switzerland ltd. Corporate Research, has been analysed thermoeconomically. A variant using solar thermal collectors is presented. It benefits from the synergy between daily variations in solar irradiance and in electricity demand. This results in an effective increase of the electric energy storage efficiency. A steady state multi-objective optimization of a 50 MW plant was done; minimizing the investment costs and maximizing the energy storage efficiency. Several types of cold storage substances have been implemented in the formulation and two different types of solar collector were investigated. A storage efficiency of 57% at a cost of 1200 USD/kW was calculated for an optimized plant using solar energy. Finally, a computation of the behaviour of the plant along the year showed a yearly availability of 84.4%. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：358 / 365

页数：8

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