A. F. Ahmed

Environmental sustainability and thermodynamic evaluation of a solar dryer with zigzag airflow during henna leaf drying

This study developed and evaluated a solar dryer with a zigzag airflow pathway for drying henna leaves under Egyptian climatic conditions. The system was designed to improve air‐product contact in tray drying by directing heated air alternately above and below the drying trays. Drying experiments were conducted at...

Morphometric analysis and soil loss assessment using the USLE model in the Subansiri watershed, Lakhimpur, Assam (India) using remote sensing and GIS techniques

Sustainable use of phosphogypsum to enhance sandy soils fertility and wheat yield in arid environments

Sandy soils in arid regions have low fertility, poor structural stability, and limited water‐holding capacity. This study evaluated phosphogypsum (PG) as a soil amendment for improving sandy‐soil quality and wheat productivity under arid conditions. A field experiment was conducted during the 2020/2021 w...

Modeling and experimental validation of an indirect active hybrid solar dryer for mint leaves: Coupled thermal and moisture-transfer analysis

A mathematical model was developed and experimentally validated to predict the thermal performance and drying behavior of an indirect active solar dryer (IAHSD) for mint leaves. The distinctive contribution of the proposed approach is its integration of solar-energy input, auxiliary gas heating, controlled fresh–reci...