Question

pls do A and B thank you

A wood dryer efficiency is defined as the ratio of actual amount of heat used to dry the wood to the heat supplied to the dryer in the form of hot dry air. An automatic wood dryer system is supplied with 3.6 metric ton of moist wood chips per hour. The wood chips have moisture content of 2.5% at 25^0 C250C. At the end of the drying process, the wood chips still contain 0.5 % moisture. Now answer the following questions: A Calculate the minimum heat supplying rate to the dryer and rate of dried wood production (per hour basis) B_The dried wood is supplied to the burner of a biomass based thermal power plant closed to the dryer. The burning rate is same as the dried wood chip production rate of the dryer. If this dried wood chip has higher calorific value of 18000 kJ/kg, and if the burner efficiency is 90% calculate the rate of heat production by the burner (per hour basis)?

Answer 1

A wood dryer efficiency is defined as the ratio of actual amount of heat used to dry the wood to the heat supplied to the dryer in the form of hot dry air. An automatic wood dryer system is Moisture in 3.b metric ton wood is 2.5x3.6 -0.09 metric ton content of 2.5% at 25^0 C250C. At the end of the drying process, the wood chips still contain 0.5 % moisture. Now answer the following questions: Moisture Calculate the minimum heat supplying rate to the dryer and rate of dried wood production (per hour basis) B_The dried wood is supplied to the burner of a biomass based thermal power plant closed to the dryer. The burning rate is same as the dried wood chip production rate of the dryer. If this dried wood chip has higher calorific value of 18000 kJ/kg, and if the burner efficiency is 90% calculate the rate of heat production by the burner (per hour basis)? still in wood = 0.5x3.6-0.018 Tou ton. = 0.072 metricton x 100 Energy recovered in Kgwood => Efficiency = 0.072 0.09 30 x 18000 = 16,200 KT = 80°% Imetric ton = 1000kg Total dried wood = 3.6- 0.018=3.582 mton, = 3.582 X10 Pirq Energy = 16200x3.582 105 = 5.881010 Rate of heat =5.8*10 = 106x10 # Ils i 60X60