Scholarlink

<p>The growing energy demand and the environmental impact of fossil fuels have driven a global shift towards sustainable and renewable energy solutions. Among the existing technologies, solar thermal technologies, particularly organic Rankine cycle (ORC) systems integrated with parabolic trough collectors (PTCs), show significant potential for low-to medium-temperature power generation. However, the intermittent nature of solar radiation necessitates the inclusion of thermal energy storage (TES) systems to ensure a reliable and continuous energy supply. The phase change material (PCM)-based latent heat storage (LHS) offers advantages such as high energy density and near-isothermal operation. Still, the optimal selection of heat transfer fluids (HTFs) and working fluids (WFs) remains underexplored. This study proposes a mathematical framework for an indirect vapor generation PTC-ORC system integrated with PCM-based LHS. Using solar radiation data from Agra (India), the system’s performance was evaluated for 28 combinations of HTFs and WFs. The optimal pair, methanol, and R116, yielded a maximum efficiency of 24%. The system achieved an average efficiency of 16.65% with a peak electrical output of 33&#xa0;kW in May. Calcium chloride hexahydrate stored up to 0.30&#xa0;MJ of thermal energy, enhancing performance during non-sunny hours. This work offers valuable insights for designing efficient solar-thermal power systems with integrated thermal storage, aiding engineers in system configuration and operational optimization.</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

A novel approach towards numerical investigations of a solar parabolic trough-organic Rankine cycle integrated with latent heat storage

  • 期刊论文

  • 发表日期：

    2025年9月11日

查看全文
  • Mayank Dixit,
  • Manoj Kumar,
  • Sachin Kumar,
  • Aditya Sharma

摘要

The growing energy demand and the environmental impact of fossil fuels have driven a global shift towards sustainable and renewable energy solutions. Among the existing technologies, solar thermal technologies, particularly organic Rankine cycle (ORC) systems integrated with parabolic trough collectors (PTCs), show significant potential for low-to medium-temperature power generation. However, the intermittent nature of solar radiation necessitates the inclusion of thermal energy storage (TES) systems to ensure a reliable and continuous energy supply. The phase change material (PCM)-based latent heat storage (LHS) offers advantages such as high energy density and near-isothermal operation. Still, the optimal selection of heat transfer fluids (HTFs) and working fluids (WFs) remains underexplored. This study proposes a mathematical framework for an indirect vapor generation PTC-ORC system integrated with PCM-based LHS. Using solar radiation data from Agra (India), the system’s performance was evaluated for 28 combinations of HTFs and WFs. The optimal pair, methanol, and R116, yielded a maximum efficiency of 24%. The system achieved an average efficiency of 16.65% with a peak electrical output of 33 kW in May. Calcium chloride hexahydrate stored up to 0.30 MJ of thermal energy, enhancing performance during non-sunny hours. This work offers valuable insights for designing efficient solar-thermal power systems with integrated thermal storage, aiding engineers in system configuration and operational optimization.