نمودارهای کلی کارآیی ذخیره انرژی برای سیستم ذخیره حرارتی پنهان در نیروگاه خورشیدی متمرکز

Concentrated Solar Power (CSP) using phase change material (PCM) as the storage medium in the Thermal Energy Storage (TES) system is a promising technology for large scale utilization of solar thermal energy. This paper studied the energy storage efficiency (ESE) of latent heat thermal energy storage (LHTES) system using a previously developed enthalpy-based 1-D transient model, and four dimensionless parameters grouped from many of LHTES system properties were investigated. Finally, a series of generalized diagrams of ESE were provided for LHTES system, and the diagrams can serve as a convenient tool for solar thermal engineers, who can simply look up the diagrams to design and calibrate the size of TES system and operational conditions without doing complicated system level modeling and computations.