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Improvement of surface evaporation by reducing heat transfer to fluid bulk and increasing heat absorption

Anjomrouz, A ; Sharif University of Technology | 2024

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  1. Type of Document: Article
  2. DOI: 10.5829/ije.2024.37.06c.12
  3. Publisher: 2024
  4. Abstract:
  5. Surface evaporation is important in many natural phenomena and industrial applications; Therefore, improving this phenomenon is very useful. In this research, the water evaporation rate is increased by designing an innovative structure by inspiring from plant structures. This structure has two main effects, firstly, it reduces the amount of heat transferred to the fluid bulk through the surface and secondly, it increases the amount of heat absorption on the surface. This structure consists of three parts: an evaporation layer, insulation, and water-absorbing fibers. After many investigations on different materials to choose the best materials for these three parts, expanded polystyrene foam and cotton fibers showed the best performance. The structure after construction and testing was able to increase the mass of evaporated water during 24 hours by 28%. It also increased the temperature of the water surface in the evaporation process during 24 hours by 16%; This caused the water to evaporate at a high temperature. In addition, the mentioned structure increased the thermal efficiency up to 85% in the radiant flux of 0.6 kW/m2. The proposed structure is scalable for any size and cost-effective. © 2024 Materials and Energy Research Center. All rights reserved
  6. Keywords:
  7. Surface evaporation plant structures expanded polystyrene foam cotton fibers economic efficiency ; Cost effectiveness ; Cotton fibers ; Economic efficiency ; Evaporation ; Heat transfer ; Polystyrenes ; Thermal efficiency ; Evaporation plants ; Evaporation rate ; Expanded polystyrene foams ; Heat absorption ; Natural phenomenon ; Plant structures ; Surface evaporation ; Surface evaporation plant structure expanded polystyrene foam cotton fiber economic efficiency ; Water evaporation ; Cotton
  8. Source: International Journal of Engineering, Transactions B: Applications ; Volume 37, Issue 6 , 2024 , Pages 1154-1163 ; 1728144X (ISSN)
  9. URL: https://www.ije.ir/article_188174.html