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This research aims to evaluate the performance of a solar greenhouse dryer in drying coffee, focusing on energy and environmental metrics.

Performance evaluation of a solar greenhouse dryer for coffee drying in the Peruvian high Andes: an energy, exergy, economic, and environmental approach

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Analytical investigation evaluates energy and environmental performance of a solar dryer for coffee in the Peruvian Andes, suggesting its viability.

This research aims to evaluate the performance of a solar greenhouse dryer in drying coffee, focusing on energy and environmental metrics.
Designed and constructed a solar greenhouse dryer
Conducted experimental evaluations of its performance
Measured humidity reduction in parchment coffee
Analyzed energy and exergy efficiencies
Calculated economic aspects including payback period
Humidity of parchment coffee reduced to 11.1% in four days
Achieved an exergy efficiency of 40%
Average energy efficiency recorded at 33%
Maximum temperature in the dryer reached 52.5°C
Calculated payback period of 5.48 years

Gonzales et al. (2026) studied this question.

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Analytical investigation evaluates energy and environmental performance of a solar dryer for coffee in the Peruvian Andes, suggesting its viability.