Heat Transfer in Food Crop Dryer Using Halogen Lamp

Abstract

Drying of food crop during post harvesting is essential to remove the moisture content. Moisture removal is required to preserve the food crop from spoilage due to micro-organisms. Moisture removal depends on the design of the dryer and the heat distribution inside the dryer. Present work is the experimental investigation to obtain uniform temperatures in a crop dryer by distribution of heat using hot air at various positions in the chamber and using halogen lamp at different wattage. Usage of two halogen lamps in the opposite sides of the chamber is observed to get more variable and higher temperatures in the chamber with lower power input.