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 ...

Drying is one of the methods used for preserving fruits and vegetables. However, due to lengthy process elevated temperature convective drying, other pretreatment drying are studied shorten time obtain high-quality products. This study aimed examine effect ultrasonic (US) microwave–hot air (MW–HA) on time, specific energy (SEC), qualitative properties (e.g., color, shrinkage, rehydration ratio)...

The drying is a basic operation of enormous commercial importance in all industrial applications ranging through the food, agricultural, mining and even manufacturing sectors [1]. Modern societies need better product quality, enhanced safety practices and more environmentally benign operations as well as higher productivity, better energy yield and reduced material wastage, also [2]. As drying ...

This study was designed to measure the sound output of four commonly used brands of forced-air dryers used by dog groomers in the United States. Many dog groomers have questions about the effect of this exposure on their hearing, as well as on the hearing of the dogs that are being groomed. Readings taken from each dryer at 1 meter (the likely distance of the dryer from the groomer and the dog)...

Three children were injured by putting their arms into spin dryers. In each case the injuries were severe. Though not common, these accidents should be preventable. Warning notices are useless for toddlers, and a built-in safety mechanism seems the only certain means of stopping such accidents.

Janet L. Poole. MA, OTR/L, is Assistant Professor, Program in Occupational Therapy, University of Pittsburgh. A lthough a variety of assistive devices are available to disabled persons for hair care, a review of health care equipment catalogues and the occupational therapy literature failed to reveal any devices designed specifically for drying hair. In particular, persons with upper extremity ...

Experimental results from the transient drying of sheets of polyester in an infrared (IR) dryer were used to derive a performance model. Separate drying experiments were done using sheets of material of various densities and thicknesses. The formulations expressed the core temperature of the web to the surface temperature of the web as a function of the residency time in the dryer and the elect...

Process analytical technology (PAT)-tools were used to monitor freeze-drying of Bacille Calmette-Guérin (BCG) at pilot and production scale. Among the evaluated PAT-tools, there is the novel use of the vacuum valve open/close frequency for determining the endpoint of primary drying at production scale. The duration of primary drying, the BCG survival rate, and the residual moisture content (RMC...

In this paper, a sliding mode control with a proportional integral (PI) sliding surface applied to the hybrid tunnel dryer has been assessed through simulations. A dynamic model of the process was developed specifically for this purpose. The pseudo-bond graph methodology was used in modelling the system, such methodology was very suitable for this thermal process and permits us to establish a m...