Tray Dryer Investigation

Objective of Experimentation
To demonstrate various drying periods by drying rate curves for a flush solidness being dried with melody at fixed temperature and humidity.
This work is a set of experiments Experiment # 02, 03,04,05,06 in which we have undergone drying at different drying rates and material at different value of fan speed and heating load.
ABSTRACT
In this experiment, we use tray dryers to dry the wet s adeninele. We choose sand as our sample because we believe that it requires short drying time, and the moisture content use up out decrease faster with time. The measurement of the moisture content is found on the weight of the sample which inversely proportional with the temperature & time. Thus, we can determine the drying rate of the sample. Based on the entropy from the experiment, the mass and moisture content is decreasing with time, whereas the drying rate is alter rapidly with time.
INTRODUCTION
Drying is the process of thermally removing volatile substances (e.g., moisture) to yield a solid product. Mechanical methods for separating a liquid from a solid are not considered in thermal drying.



When a wet solid is subjected to thermal drying, two processes occur simultaneously;
scratch base is the transfer of energy, mostly as heat from the surrounding surroundings to evaporate the surface moisture, Second is the transfer of internal moisture to the surface of the solid and its subsequent evaporation due to the first process. Several types of dryers are used in different palm and specialties. The common type of dryer in many industrial applications that involve drying operation is tray dryers (or cabinet dryers).
The dryers are made of trays held in a cabinet, which is connected to a source of heated air by gas, diesel or biomass. The food, which is to be dried, is spread out, more often than not quite thinly, on trays which the drying takes place.
Heating may be by an air current sweeping across the trays, by conductivity from heated trays or heated shelves on which...If you want to get a full essay, order it on our website: Orderessay



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