In an air separation plant, air is cooled and its components are separated from the mixture. cooled oxygen at a temperature of 20°c must be heated to a temperature of 30°c for accurate metering. the oxygen flow rate at 30°c is 0.01 kg/s. air (available at 35°c and 0.015 kg/s) is used as the heating medium. a number of 3 x 2 schedule 40 double pipe heat exchangers that are 2 m long and made of galvanized steel are available. determine how many are required. calculate outlet temperatures and pressure drops. compose a summary of performance chart.

What precautions should you take to prevent injuries when dealing with heavy loads?

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.