Journal of Advanced Thermal Science Research, Journal Year: 2023, Volume and Issue: 10, P. 59 - 74

Published: Dec. 20, 2023

Artificial activities, environmental factors, and industrial production lead to periodic fluctuations in electricity consumption, necessitating peak-shaving measures ensure efficient stable operation of the power grid. The Carnot battery system represents an effective solution due its high efficiency convenience. In this paper, we propose a novel based on dual-function unit establish thermodynamic economic models. This paper proposed simple reversible heat pump-organic Rankine cycle system, where compression expansion was developed simplify reduce investment costs. Subsequently, considering unsaturated operating conditions that occur during practical operation, comprehensive performance analysis is conducted by varying pressure temperature parameters. Afterward, exergy performed determine losses components for subsequent optimization. results indicate drop has detrimental effect system. When 15 kPa, achieves power-to-power ratio (P2P), levelized cost storage (LCOS), 27.57%, 0.66 $/kW∙h, 62.8%. However, also leads increased evaporator, resulting decreased efficiency. evaporator exhibits highest loss, with maximum loss 21.16 kW among all components. Undercharging mode, condenser shows lowest 64.43%.

Language: Английский