ABSTARCT: Solar drying is an integral part of rural life for various products, especially vegetable, fruits & spices which are produced in rural areas and have no scientific means of preserving such raw products. This paper is an attempt to review the solar drying process & solar dryers used for chilli drying worldwide which includes types of solar dryer, drying process & techno economical feas...

in recent years immense interest has been focused on the use of solar dryers especially when taking into consideration economical and ecological aspects and increasing in fuel costs. the aim of this study was to compare the qualitative factors of raisins made by five different drying methods. at the first step, pretreatments were applied to grapes (var. sultanas) and then the grapes were dried ...

C. D. Fry∗ Exploration Physics International, Inc., Huntsville, Alabama 35806 M. Dryer† National Oceanic and Atmospheric Administration, Boulder, Colorado 80305 W. Sun‡ and C. S. Deehr§ University of Alaska, Fairbanks, Alaska 99775 Z. Smith¶ and T. R. Detman∗∗ National Oceanic and Atmospheric Administration, Boulder, Colorado 80305 A. Aran†† Institut d’Estudis Espacials de Catalunya, E-08034 Ba...

The objective of this work was to determine the effects of blanching and two drying methods, open-sun drying and natural convection solar drying, on the quality characteristics of red pepper. A 2 × 3 factorial design with experimental factors as 2 drying methods (open-sun drying and use of solar dryer) and 3 levels of pepper blanching (unblanched, blanched in plain water, and blanched in 2% NaC...

A clothes dryer, however, might be fitted with a sensor-based feedback system that lets the machine measure the moisture content of the fabrics or the exhaust air, and turn itself off when the load is dry. Operating performance is enhanced and energy use is lowered as a result. The redesigned dryer might even be cheaper to buy, depending mainly on the cost of the components that comprise the el...

The drying or dehydration is the controlled heating of food products to evaporate quantified amount of moisture that is originally present in it. Drying of food products is essential to enhance the shelf life of the product without quality losses over an extended period of time. It is an energy intensive process. The fluidized bed dryer with heat pump is one of the efficient method to reduce th...

Abstract—There was a scenario present day that drying of fresh fruits and vegetables by indirect solar drying by using mechanical device; hence, an effort was made to develop a small scale solar tunnel dryer (STD). Drying of spinach is carried out to analyze the performance of the dryer and to study its drying characteristics. To evaluate the performance of dryer the independent variables were ...

The objective of this study was to investigate the effect ultrasound pre-treatment (50% US and 100% US-soaking), temperature (80, 90 100 ᵒC) dryer type (hot-air convection vacuum) on some physical characteristics such as hectoliter weight, thousand kernel dimensions (thickness, length, width, equivalent diameter sphericity) corn during drying. Before drying, samples were pre-treated without (co...