Evaluation of Different Designs of Thermal Storage in Solar Drying System.

Document Type : Research Studies

Authors

1 Solar Energy Department., National Research Center., Cairo., Egypt.

2 Mechanical Power Engineering Department., National Research Center., Cairo., Egypt.

Abstract

A simple, easy built forced convection solar drying system consisting of a solar air heater, drying chamber and thermal storage has been constructed and tested.
A new simple pebble bed storage, with special and easy form was designed to be heated with direct solar energy or hot air from the heater or both.
The drying system performance was studied under different locations of the storage box with respect to the drying chamber during 24 hours of operation. The performance of the drying system with the best location was studied under different flow rates.

Main Subjects