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A Wet solid is to be dried in a tray dryer under steady-state conditions from a...
Question 1 A batch dryer removes water from a solid at a rate of 19.445 g/s...
Question 1 A batch dryer removes water from a solid at a rate of 19.445 g/s during the constant rate period. The critical moisture content is 0.45 kg H20 /kg dry solid. The equilibrium moisture content of the material is 0.075 kg H20/ kg dry solid. The dryer is initially charged with 400 kg of dry material which contains 62.5% dry material and the remainder is moisture. The final product contains 0.085 kg H2O/kg dry solid and the falling rate...
please show all calculation step-by-step and sketch 3.4 In order to test the feasibility of drying...
please show all calculation step-by-step and sketch
3.4 In order to test the feasibility of drying a certain foodstuff, drying data were obtained in a tray dryer with air flow over the top exposed surface having an area of 0.186 m². The bone-dry sample weight was 3.765 kg dry solid. At equilibrium after a long period, the wet sample weight was 3.955 kg H2O + solid. Hence, 3.955 - 3.765, or 0.190, kg of equilibrium moisture was present. The following...
1) In a low-temperature drying operation, air at 60°C and 10% RH is being passed over...
1) In a low-temperature drying operation, air at 60°C and 10% RH is being passed over diced carrots at the rate of 20 kg dry air/s. The constant rate of evaporation of water from the carrots was measured as 0.16 kg moisture/s. Estimate the temperature and RH of the air leaving the dryer. (8 pts) 2) 100 kg of bulghur with an initial moisture content of 80% on wet basis and a surface area of 12 m² is dried in...
Air in a factory for drying apricots had dry bulb temperature of (Tdry) 25oC and wet...
Air in a factory for drying apricots had dry bulb temperature of (Tdry) 25oC and wet bulb temperature of (T wet) 15oC. What are the RH, dew point, Humidity ratio, specific volume and vapour pressure values. Second we are drying 10 Kg apricots of 85% moisture in batch production ending up with 60 % moisture content using a fan that blows hot air. We measured the air characteristics and found that Tdry = 35 oC and Twet=28 oC. The fan...
Question 1 A batch dryer removes water from a solid at a rate of 19.445 g/s during the constant rate period. The critical moisture content is 0.45 kg H20 /kg dry solid. The equilibrium moisture content of the material is 0.075 kg H20/ kg dry solid. The dryer is initially charged with 400 kg of dry material which contains 62.5% dry material and the remainder is moisture. The final product contains 0.085 kg H2O/kg dry solid and the falling rate...
please show all calculation step-by-step and sketch
3.4 In order to test the feasibility of drying a certain foodstuff, drying data were obtained in a tray dryer with air flow over the top exposed surface having an area of 0.186 m². The bone-dry sample weight was 3.765 kg dry solid. At equilibrium after a long period, the wet sample weight was 3.955 kg H2O + solid. Hence, 3.955 - 3.765, or 0.190, kg of equilibrium moisture was present. The following...
1) In a low-temperature drying operation, air at 60°C and 10% RH is being passed over diced carrots at the rate of 20 kg dry air/s. The constant rate of evaporation of water from the carrots was measured as 0.16 kg moisture/s. Estimate the temperature and RH of the air leaving the dryer. (8 pts) 2) 100 kg of bulghur with an initial moisture content of 80% on wet basis and a surface area of 12 m² is dried in...
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