H3SH-24-C flender accouplement Helical gearboxes H3

Flender/Flender Gear Units/Helical gearboxes H3

can provide air leaving the coils at temperature close to the room temperature while maintaining large refrigeration capacity (. There should also be sufcient air circulation to keep the product at uniform tem- perature and to prevent condensation, thus, uniformity of airow around all of the produceis an important design consideration. Flow rates of 0.0 to 0.0 3s/H1of air per 1 kg of product are generally adequate (. The ow rate should be based on the maximal amount of produce that is expected to be stored in the room. Temperature may be con- trolled by placing thermostats in positions that represent the effective cooling temperature.They should not be placed near sources of heat or cold, such as doors, exterior walls, orair discharge areas of the cooling unit. The temperature measurement units are best placedabout 1.5 off the oor for easy reading (. The timing, degree, and type of cooling that can be used depend on the commodity to be stored and its end use since there are important differences in composition and physiological characteristics among the fruit and vegetables species used as foods. For example, leafy vegetables are cooled soon after harvest to maintain turgor, whereas tubers(potatoes, yams, sweet potatoes) are not. Potatoes, for instance, are held at 1 Ct o2 5C for up to 1 days to permit suberization (, process that promotes wound healing andreduces invasion by storage pathogens. Thereafter, potatoes are stored at 5 Ct o1 0Ct Cooling and Storage 5 Table 1 Recommended Precooling Methods and Storage Conditions for Various Fruits and Vegetables Precooling Produce methodaStorage conditions Apples (2, RC, FA, HC 0 Ct o5C, 1%3% 2,1 % 5 % 2 Asparagus (1, HC, PI 0 Ct o2C, 9% to 1% RH Apricots ( RC, FA 0 Ct o5C, 9% RH, 2% to 3% 2,2 % o3 % 2 Artichokes (2, HC, FA, PI 0 Ct o5C, 9% to 9% RH, 2% to 3% 2,2 % o3 % 2 Beans, snap (1, RC, FA, HC 8 , 2% to 3% 2,4 % o7 % 2 Beets (1, RC 0 Ct o4C, 9% RH Blackberries (1, FA, RC /H