A biotechnology company produces an antibiotic by growing fungi in a water suspension. The fungi cells are removed by filtration, then the filtrate goes into a purification step. The cells are 1.5 x 10-5 m in diameter and they compose 0.8% of the growth broth volume. Water at 25 C (p = 1,000 kg/m?; u = 0.001 kg/m-s) passes through a filter that is 1 m² in area. The pump delivering the liquid broth to the filter pumps at a constant flow rate of 1 L/min, but can only hold a maximum pressure of 55,000 Pa Calculate the total volume (L) that can be filtered before cleaning and the time it takes (min). Assume cake porosity to be a = 0.35.

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.