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Numerical investigation of a latent cold storage system using shell-and-tube unit

Energy Storage and Saving 2023年第2期2卷 467-477页

作者： Bilal Lamrani Aicha Belcaid Badr Eddine Lebrouhi tarik El Rhafiki tarik kousksou MANAPSE Lab Faculty of SciencesMohammed V University in RabatRabatBP 1014Morocco Faculty of Sciences and Techniques Abdelmalek Essaadi UniversityTangierBP 416Morocco University of Pau and Pays de l’Adour E2SUPPASIAMEPauBP 675-64012France Mohammadia School of Engineering Mohammed V University in RabatRabatBP 765Morocco

The use of cold thermal storage systems in low-temperature industrial applications is considered one of the most promising ways of improving energy efficiency and reducing the use of power during peak *** this study,the thermal performance of a shell-and-tube cold storage system under realistic operating conditions is investigated *** proposed model is developed based on energy balances and then validated using existing experimental data from the ***/water is used as the heat transfer fluid(HTF)and the phase transition phenomena in the phase change material(PCM)is simulated using the enthalpy-porosity *** influence of several design and operating parameters,including the HTF mass flow rate,HTF temperature,PCM type,and volume,on the cold storage performance during the crystallization process is presented and *** numerical results show that increasing the HTF mass flow rate accelerates the PCM crystallization ***,the delivery periods of constant thermal power and constant HTF outlet temperature are *** HTF inlet temperature has a significant effect on the cold storage performance,and the complete charging period is reduced by approximately 37%when the HTF inlet temperature is reduced from−4°C to−7°*** the number of tubes in the cold storage unit is concluded to significantly improve the thermal performance of the system,and using water/ice as a cold storage medium is more suitable than using the commercial PCMs RT2-HC and ***,the proposed numerical model for cold storage systems can be successfully used to design and simulate their realistic operation under different conditions.

关键词： Cold storage Phase change material(PCM) Shell-and-tube unit Crystallization Thermal performance

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