The latent heat storage (LHS) system is an essential component required to harness renewable energy systems. For this purpose, thermal energy storage media commonly known as phase-change martials (PCM) are utilized. However, their low thermal conductivity is the main challenge to be addressed in the LHS systems applications. Therefore, a shell and tube kind of LHS with multiple finned heat transferring fluid (HTF) tubes is designed and fabricated. Erythritol (C₄H₁₀O₄) as an energy storage media and cooking waste oil as HTF are utilized. Experimental and numerical thermal performance study of LHS is performed using various parameters such as stored energy, charging time, transient liquid fraction and temperature. The impact of the HTF mass flow rate and temperature variation on the melting behavior of the storage unit is studied. It is observed that the increase in inlet flow rate and temperature enhances melting performance. The experimental results are validated with the outcome of numerical analysis with CFD software (ANSYS-Fluent), which indicates acceptable accuracy of experimental results with a maximum discrepancy of 6.0%. The total simulation time of the whole melting analysis of the PCM inside LHS is 175 min. The sensible, latent heat and the overall stored energy of PCM are found as 9,429 kJ, 17,735 kJ and 27,164 kJ respectively.

潜热存储（LHS）系统是利用可再生能源系统所需的基本组件。为此，利用了通常被称为相变材料（PCM）的热能存储介质。但是，它们的低导热率是LHS系统应用中要解决的主要挑战。因此，设计并制造了一种具有多个翅片式传热流体（HTF）管的LHS壳管式。赤藓糖醇（C ₄ H ₁₀ O ₄）作为储能介质，并使用HTF作为烹饪废油。使用各种参数（例如存储的能量，充电时间，瞬时液体分数和温度）进行LHS的实验和数值热性能研究。研究了HTF质量流量和温度变化对存储单元熔化行为的影响。观察到入口流速和温度的增加增强了熔融性能。使用CFD软件（ANSYS-Fluent）进行的数值分析结果验证了实验结果，该结果表明可接受的实验结果准确性，最大差异为6.0％。LHS内部PCM的整个熔化分析的总模拟时间为175分钟。PCM的显热，潜热和总存储能量为9,429 kJ，17