Finned Heater is mainly made of thread,screw nut,finned and U type and it can used in many fields,such as dryers and ovens,and how to calculate the circulating air volume and temperature of the finned tube heat exchanger in the food drying? The return air temperature of finned tube heat...
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Finned Heater is mainly made of thread,screw nut,finned and U type and it can used in many fields,such as dryers and ovens,and how to calculate the circulating air volume and temperature of the finned tube heat exchanger in the food drying?
The return air temperature of finned tube heat exchanger/radiator is very important for the use. If there is any difference in the return air temperature, it will affect the operation of the equipment. Finned tube heat exchanger/radiator in the operation of food drying equipment, in the cycle drying process, because the high temperature air reaches or close to saturation state, high temperature and high humidity environment will not take away the moisture in the material, so it reaches saturation state, stop evaporation. Continued drying in this condition is ineffective and should be ruled out. If material moisture content is higher, in a short time, easy to cause the hot air saturated situations, adopt all fresh air drying, the air after finned tube in the radiator heating, to reach the temperature of hot air into the dryer, and at the same time by the other side, inside the tunnel drying tunnel, the flow of hot air phase flow and material flow.
Another situation is hot air circulation drying, because the water content of the material is not high, it is not easy to cause saturation to the hot air in a short time, and the drying needs to maintain a certain evaporation temperature conditions, at this time, more use to exclude part of the hot and humid air, supplement part of the fresh air, save energy consumption, reduce production costs. The replenishment amount of fresh air is generally 20-30%, which depends on the technical requirements.
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