This research study and development of rotary dryers, multipurpose solar energy. Temperature control using help. Resulting in a need to study the temperature drying multipurpose tray type solar rotation. Of such concepts To promote the adoption of technology in drying process. And with the expectation that farmers or those interested can basically use it. The purpose of this research is to study the temperature. Therefore, in this research, conducted tests and studies to measure the temperature.
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