Carambola is an excellent C-vitamin source and other healthy nutrients; unfortunately, because its high moisture content a very perishable fruit. Solar drying feasible solution for preservation. However, the optimal conditions depend on dryer material. A natural convection sun-dryer was modified using four different materials: glass, acrylic, polycarbonate, polyethylene. The of carambola slices...

This work consisted in the simulation of operation a prototype large capacity indirect solar dryer intended to dry 501.4 kg fresh cassava pieces per drying cycle. It is designed lower water content from 62% 17% on wet basis under optimal conditions, order improve quality products dried and meet standards international market. The modeling physical phenomena at level was done follow evolution va...

Drying via solar energy is an environmentally friendly and inexpensive process. For controlled bulk level drying, a greenhouse dryer the most suitable dryer. The efficiency of can be increased by using thermal storage. agricultural products dried in greenhouses are reported to higher quality than those sun because they shielded from dust, rain, insects, birds, animals. heat storage-based was fo...

Abstract Drying process has been employed since ancient times to preserve agricultural products by reducing the moisture content. Solar dryer is one of most commonly used dryers due its availability, reliability, and environmentally friendly nature. It practical in rural areas solar can be fabricated with a simple design. Despite potential, designing long-term, feasible challenging without good...

The aim of this study was to develop a user-friendly model for spray drying that can aid in the development of a pharmaceutical product, by shifting from a trial-and-error towards a quality-by-design approach. To achieve this, a spray dryer model was developed in commercial and open source spreadsheet software. The output of the model was first fitted to the experimental output of a Büchi B-290...

The objective of the paper is to present modifications done in hy brid gr eenhouse solar dryers make them more efficient. As we re developed ov ercome various limitations other types dryers. Due dryers, effect on heat transfer parameters like coefficient, drying time, efficiency, etc. studied and also encapsulated paper. It found that most hybrid maximum temperature chamber around 65–80°C. This...