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This research aims to optimize solar dryers by enhancing thermal performance through ribbed designs in heat exchangers and collectors.

Numerical modelling of solar dryers focusing on the heat exchangers and solar collectors – comparing flat and rib designs with varying airflows

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Numerical analysis compares ribbed and flat solar dryer designs, revealing significant thermal performance improvements.

This research aims to optimize solar dryers by enhancing thermal performance through ribbed designs in heat exchangers and collectors.
Used a computational fluid dynamics (CFD) model for simulation.
Tested four dryer configurations under varying airflows from 15 l/s to 45 l/s.
Evaluated key performance metrics such as collector outlet temperature and thermal efficiency.
Configuration S, with ribs in both collector and heat exchanger, showed the best performance.
Achieved a maximum collector efficiency of 91.74% at 35 l/s airflow.
Optimal performance occurred at 25 l/s with an 88.63% efficiency and 33.65% effectiveness.

Adhikari et al. (2026) studied this question.

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