Annual comparative performance and cost analysis of high temperature, sensible thermal energy storage systems integrated with a concentrated solar power plant

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

“…The warmer loop typically uses thermal oils (Biencinto et al, 2014;Boukelia et al, 2015) or molten salts (Olivares, 2012;Flueckiger et al, 2013). TES consisting of liquid thermocline schemes (Qin et al, 2012;Flueckiger et al, 2013;Mostafavi Tehrani et al, 2017), liquid two-tank schemes (Bauer et al, 2013), and sensible solid media storage schemes (Niyas et al, 2015;Tiskatine et al, 2017) are also used and are sized to provide suitable amounts of thermal storage.…”

“…This is necessary because a single HTF (steam/water) is present in a unified flow loop system between the solar field, the power block and the condenser(s), as is shown in Figure 1. When considering possible thermal energy storage schemes, notably both the technical and economic feasibility of the scheme must be considered (Mostafavi Tehrani et al, 2017).…”

“…Sensible TES using solids often utilise packed beds (Kuravi et al, 2013;Bruch et al, 2014) which can be modelled as porous media (Andreozzi et al, 2012) or flow channel passages within volumes containing the storage medium (Buscemi et al, 2018), or combinations with thermocline liquid storage tanks (Mostafavi Tehrani et al, 2017). During charging, the temperature of the storage media is increased by heat transfer from the interfacing fluid, while during discharging heat is transfered back into the interfacing fluid.…”

“…As mentioned, such schemes are often used for pre-heating of water and superheating of steam in conjunction with latent energy storage. Different storage architectures exist which may employ one (Mostafavi Tehrani et al, 2017), two or three liquid tanks (Seitz et al, 2013). During charging in schemes with more than one tank, liquid is pumped from a cold tank and heated in heat exchangers to one hot tank or to two tanks (one intermediate warm tank and one hot tank).…”

Rheological Characteristics of Molten Salt Seeded with Al2O3 Nanopowder and Graphene for Concentrated Solar Power

“…A CSP system always uses heat transfer fluid (HTF) to send the intense heat to a thermal power plant which is able to provide power at night-time with the amount of stored thermal energy. Thus, a CSP system combined with a thermal energy storage system becomes the first choice to provide flexible and consistent power [7,8]. The development of reliable thermal storage system is vital for the sustainable and efficient utilization of solar energy resource.…”