A spray dryer receives distillers dried grains (DDGS) with a 65% moisture content. The spray dryer operates with dry air entering at 180 °C, 1 bar, and moist air exits at 87 °C, 1 bar, and 25% relative humidity. The volumetric flow rate of the exiting air is 310 m3/min. The solids exit the dryer completely dry. Determine The rate of dried particle flow, in kg/min The volumetric flow rate of inlet dry air, in m3/min

Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg. m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?