Transient multi-day simulations of thermal storage and heat extraction for a finned solar thermal storage device

Dynamic simulation of steam generation system in solar tower power plant

“…The net load ramp rate of PT with TES, which operates as a peaking plant, must vary rapidly in a high renewable electricity scenario [8,13]. The dynamic characteristics concern to the operation safety of PT need to be investigated, including the dynamic performances of PT receiver, steam generator, thermal storage system, and steam turbine [14][15][16]. To better understand the dynamic performances of the steam generator in PT, which act as a peaking plant in the multi-energy integration system to carry out peak-valley regulation, will be especially significant.…”

Improving the performance of finned latent heat thermal storage devices using a Cartesian grid solver and machine-learning optimization techniques

“…The objective function above weighs the discharging result more heavily than the charging result. Earlier work [114] has demonstrated that the gap in performance between good and poor designs is larger for discharging than for charging. Since it is anticipated that the overall efficacy of a design depends more significantly on its discharging efficiency, the…”

“…Several tools are used to reduce this cost. First, the flow solver[54,114,115] uses a strongly coupled implicit scheme for conjugate heat transfer and a sharp interface method to define the boundary between different materials: this combination of techniques produces a robust and accurate simulation of the phase change and heat transfer phenomena. Second, the combination of a Cartesian grid-based immersed boundary approach[135] and solution-adaptive locally refined meshes[45] eliminates the need to manually generate a mesh for each geometry.…”

An investigation of measurement method and phase change in a latent heat energy storage device

“…NaNO3 (solar salt) consistently appeared having the greatest ratio of cost to energy storage density. The material's properties are noted in Table 1 [35] and are used for all experiments in this study. Table 1: Experimental material properties [35] The enclosure and the fin arrangement mate using a 10-24x.75" 316 stainless steel (SS) cuppoint set screw, concentric about the inside surface and fin arrangement centers.…”

“…The material's properties are noted in Table 1 [35] and are used for all experiments in this study. Table 1: Experimental material properties [35] The enclosure and the fin arrangement mate using a 10-24x.75" 316 stainless steel (SS) cuppoint set screw, concentric about the inside surface and fin arrangement centers. Note, a SS super heli-coil fastener was set flush to the inside surface of the enclosure so the 10-24 SS set screw could mate securely with the aluminum.…”