Ethylene glycol is to be cooled in a 48 ft long counter flow double pipe heat exchanger consisting of 2" Type M brass tubing for the inner tube and 4" Type M tubing forming the annulus. Glycol flowing through the inner tube enters the heat exchanger at 190 F at a flow rate of 18 lbm/s. Water, acting as the coolant in the annulus, enters at 40 F at a flow rate of 25 lbm/s. Find the product UA for the heat exchanger, outlet temperatures of the glycol and water, and the pressure drop of each stream. (

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

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.

Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent