Scholarlink

In a solar thermal process known as solar air heating, the energy from the sun is absorbed by an absorbent media and utilized to heat the air. It is often the most cost-effective solar technology, particularly for commercial and industrial usage. The usage of a solar air heater includes drying, heating interior rooms in the winter, and various industrial, agricultural, and commercial applications. A solar air heater works by absorbing solar radiation and transferring heat to the air. This research presents a numerical analysis of the solar air heater's curve ribs thermohydraulic performance at a circular cross-section. Relative roughness pitch, relative roughness height, angle of attack, and Reynolds number are some of the varying analyzing parameters based on artificial roughness. The solar air heater's analytical and CFD analyses are shown in the findings. Due to the breakdown of the viscous sublayer development, it is shown that the Nusselt number rises with the Reynolds number. Maximum improvements in thermal efficiency and exergy as compared to smooth ducts are 30 and 56%, respectively.

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

Thermal Performance Enhancement of Roughened Solar Air Heater for Space Heating and Drying Agro Product

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Himanshu Pachori,
  • Tushar Choudhary,
  • Tanuja Sheorey,
  • Aman Singh Rajpoot,
  • Abhinav Anand Sinha

摘要

In a solar thermal process known as solar air heating, the energy from the sun is absorbed by an absorbent media and utilized to heat the air. It is often the most cost-effective solar technology, particularly for commercial and industrial usage. The usage of a solar air heater includes drying, heating interior rooms in the winter, and various industrial, agricultural, and commercial applications. A solar air heater works by absorbing solar radiation and transferring heat to the air. This research presents a numerical analysis of the solar air heater's curve ribs thermohydraulic performance at a circular cross-section. Relative roughness pitch, relative roughness height, angle of attack, and Reynolds number are some of the varying analyzing parameters based on artificial roughness. The solar air heater's analytical and CFD analyses are shown in the findings. Due to the breakdown of the viscous sublayer development, it is shown that the Nusselt number rises with the Reynolds number. Maximum improvements in thermal efficiency and exergy as compared to smooth ducts are 30 and 56%, respectively.