Response surface modelling and performance evaluation of solar dryer for drying of grapes

The current study focuses on the performance of Solar Greenhouse Dryer for drying grapes raisin making in and Open sun condition Western Maharashtra. Maharashtra state ranks first production grapes, probably produces nearly 800 thousand tons every year. major wastage is due to low sugar content, glossy appearance, shrinkage, excess water berry, scorching size variation. Therefore, there a need preserve by raisins non-seasonal requirement. experiment was conducted Sun from 1st April 4th 48 hours. initial weight be dried 500 grams both open conditions. at Bahe, Borgaon, Tal-Walwa, Dist- Sangli, Maharashtra, India located 17.115o N 74.33o E. main aim using DOE i.e., Response Surface Modelling get an optimum region Dryer, plot; maxima minima obtained.