A Unit Load AS/RS system consists of 10 aisles with an S/R machine in each aisle. The storage rack is 400 feet long and 80 feet high. The I/O point is located at the lower left-hand corner of the rack. The S/R machine travels at 300 FPM in the horizontal direction and 60 FPM in the vertical direction. The time required for a pick-up or deposit operation is 0.25 minutes. A. What is the expected round-trip SC cycle time, assuming a policy of shared (random) storage

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater