The Basic of Mechanical Property of Palm Oil by Semi-damp Drying Process

Sakultala Wannapakhe1,* and Khridsadakhon Booddachan1

ABSTRACT

This project aims to develop the community palm damp dryer by improving from the ordinary palm dryer. By using the aerosolized technical the 100 °C hot water was sprayers as a humidifier for the palm in the dryer. The purpose was reduced palm fruit hardness. The results from the development shown that a damp palm with 41.28%RH (average humidity) required 0.28 kN of compression force. While a damp palm with 33.97%RH (average humidity) required 0.75 kN of compression force. A damp palm with 30%RH (average humidity) requires 0.77 kN of compression force. On the other hand, a steamed palm (100% average humidity) required 0.20 kN of compression force while a dry palm (18% average humidity) required 0.83 kN of compression force A dry palm required higher force because the humidity decreased in a palm fruit made it dry and hard. On the contrary, a damp palm required medium force and similar to a steamed palm because of their identical property. The results show that the optimal humidity was 41.28%RH.Moreover, the experiments of basic properties of palm oil were free fatty acid (FFA) and DOBI. It was found that the FFA of palm oil from semi-dampness process was lower than drying process; the DOBI of palm oil from semi-dampness dry process was higher than dry process.

Type of Paper: Conceptual / Empirical/other

Keywords: Palm Oil; Semi-damp Drying; Hot Air Drying; Palm Oil Drying; Semi-dampness dry process

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