Scholarlink

<p>The present research attempts to gauge the performance of different phase change materials (PCMs) as thermal energy storage (TES) systems for solar drying applications. This study examined five PCMs having melting points suitable for solar drying applications: sodium acetate trihydrate, sodium dithionite hydrate, Mg(NO<sub>3</sub>).6H<sub>2</sub>0, Stearic acid, and Acetamide in copper containers is examined. A mathematical simulation of the PCM heating process was performed using finite element method (FEM), and the results were presented focusing on parameters like temperature distribution, melt fraction, and thermal retention throughout the phase change process. The simulation results disclosed that as the heat flux escalates from 4 to 6&#xa0;kW/m<sup>2</sup>, the melting duration diminishes for all materials, and stearic acid melts the fastest. Sodium acetate trihydrate melts in 160–230&#xa0;min, sodium dithionite hydrate in 225–275&#xa0;min, Mg(NO₃)·6H₂O in 140–170&#xa0;min, stearic acid in 65–85&#xa0;min, and acetamide in 100–150&#xa0;min. Stearic acid has the highest value of enthalpy and Mg(NO<sub>3</sub>). 6H<sub>2</sub>0 has the lowest enthalpy value, stearic acid is a preferable alternative for storing energy in drying applications. The research helps to design effective TES systems, which can improve the sustainability of solar drying. PCM performance can be further improved with enhanced thermal conductivity by adding nanoparticles, metal foams, and effective encapsulation techniques.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Assessment of phase change materials for thermal energy storage in solar drying applications

  • 期刊论文

  • 发表日期：

    2025年2月6日

查看全文
  • Ankit Srivastava,
  • Himanshu Mishra,
  • Saurabh Pandey,
  • Atul Sharma,
  • Anil Kumar

摘要

The present research attempts to gauge the performance of different phase change materials (PCMs) as thermal energy storage (TES) systems for solar drying applications. This study examined five PCMs having melting points suitable for solar drying applications: sodium acetate trihydrate, sodium dithionite hydrate, Mg(NO3).6H20, Stearic acid, and Acetamide in copper containers is examined. A mathematical simulation of the PCM heating process was performed using finite element method (FEM), and the results were presented focusing on parameters like temperature distribution, melt fraction, and thermal retention throughout the phase change process. The simulation results disclosed that as the heat flux escalates from 4 to 6 kW/m2, the melting duration diminishes for all materials, and stearic acid melts the fastest. Sodium acetate trihydrate melts in 160–230 min, sodium dithionite hydrate in 225–275 min, Mg(NO₃)·6H₂O in 140–170 min, stearic acid in 65–85 min, and acetamide in 100–150 min. Stearic acid has the highest value of enthalpy and Mg(NO3). 6H20 has the lowest enthalpy value, stearic acid is a preferable alternative for storing energy in drying applications. The research helps to design effective TES systems, which can improve the sustainability of solar drying. PCM performance can be further improved with enhanced thermal conductivity by adding nanoparticles, metal foams, and effective encapsulation techniques.