Preservation of fruits, vegetables, and food are essential for keeping them for a long time without further deterioration in the quality of the product. Solar drying has been used since time immemorial to dry plants, seeds, fruits, meat, fish, wood, and other agricultural, forest products. The aim of the dryer is mainly for the welfare of the marginalized and poor farmers those who can’t afford hi-tech facilities and equipment’s to preserve their agricultural products. Conventionally, nutmeg (Myristica fragrans) is dried in the sun or in kitchen fire place utilizing the heat radiated from the stove drying requires more time and affected its quality. In order to maintain quality and to increase sufficient temperature in the drying chamber during rainy season and cloudy hours, a pyramid shape solar biomass dryer assisted with biomass combustor was designed. Power of the pyramid shape scientists experimented by making model pyramids and placing different types of food in them. | Techno-economics of pyramid shape solar-biomass hybrid drying of nutmeg
