Bevel-helical speed reducers B4 ion systems can be designed for the required coo B4-KV14-B

Flender/Flender Gear Units/Bevel-helical speed reducers B4

ve source. In consuming direct solar energy, the dryer, always the main energy consumer, has priority. The storage tank has next priority, assuming that the stratied tank can usually be loaded because of continuous water usage on the farm. After the storage tank is loaded, water is heated; additional technological heat con- sumers use direct solar energy. In drying, if solar energy is not sufcient to meet the demand of all subsystems, then it is necessary to remove subsystems from the direct solar energy resource in thefollowing sequence: rst, additional technological heat consumers; second, water heating; third, the storage tank. Of course, priority order can be reversed. To perform the control tasks block-oriented simulation model of the integrated system can include the following: () submodel of technological processes, () an or-ganizing submodel that allows construction of an appropriate layout from the availablesubsystems, and () control subsystem that has potential for study of different controlalgorithms. The structure of the simulation model permits exible extension feasibility, .., including new types of blocks for additional technological processes on the farm and/or new control units. In the selection of the appropriate operating mode the easily measured system vari- ables are the ambient air temperature, the outlet and inlet water temperatures of the solarcollector, the inlet and outlet air temperatures of the dryer, the layer temperatures of thestorage tank, and the temperature of the service hot water. REFERENCES 1. Boseley, . ., . . Edgar, . . Patwardhan, and . . Wright, Model-based control: survey, In Advanced Control of Chemical Processes (ed. Najim, . and . Dufour), IFAC Symposia Series, No. 8, Pergamon Press, Oxford, New York, 1. 2. De Baerdemaeker, ., and . Hashimoto, Speaking fruit approach to the intelligent control of the storage system, Proceedings of 1th CIGR World Congress, Vol. 1, 1, pp. 1. 3. Farkas, ., Control and computer simulation