AFT093 Convection Drying Educational Equipment Heat Transfer Demonstrational Equipment
1 Description Convection dryers are often used for drying solids in food technology. The AFT093can be used to investigate and demonstrate the process of convection drying of granular solids. Four corrosion resistant removable plates are available for drying the solid. They are placed in a drying channel. The plates containing the solid to be dried are exposed to an air flow in the channel. The air flow heats the solid and also removes any moisture released. Air velocity can be adjusted by the speed of a fan. An adjustable heater allows the heating of the air. The transparent door in the drying channel allows the drying process to be observed. A digital balance can be used to follow the changes in weight of the solid due to evaporation or vaporisation of moisture during operation. The air temperature and the relative humidity of the air are measured and digitally displayed by a single combined temperature and humidity sensor before and after the air flow passes over the solid. A further sensor measures the air velocity. The relevant measured parameters (changes in weight, humidity, temperature, air velocity) can be transferred directly to a PC, where they can then be further processed. 2 Specification drier for investigating convection drying of solids drying on 4 corrosion resistant plates in a drying channel with an air flow adjustment of air velocity via speed of fan air heating with controlled heater digital balance for measuring the change of weight during drying 1 combined sensor for measurement of humidity and temperature before and after the solid sample 1 air velocity sensor software for data acquisition via USB under Windows 8.1, 10 3 Technical data Drying channel length: 2340mm (with fan) internal dimensions: 350x350mm Fan power: 33W max. output: 700m3/h max. speed: 950min-1 Heater power: 0…6750W with adjustable temperature limiter Balance measuring range: 0…10000g resolution: 0,1g Measuring ranges air humidity: 0…100% r.F. temperature: 0…125°C flow velocity: 0…2,5m/s 400V, 50Hz, 3 phases 400V, 60Hz, 3 phases 230V, 60Hz, 3 phases UL/CSA optional Dimensions and weight LxWxH: 2350x800x1200mm Weight: approx. 175kg Required for operation PC with Windows recommended
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