Ahydraulic press is powered by a remote high-pressure pump. the gage pressure at the pump is 20 mpa, and the pressure required to operate the press is 19mpa (gage) at a flow rate of 0.032 m3/min. the press and pump are to be connected by 100 m of drawn stainless steel tubing. the fluid properties are as follows: µ=50 cp, sg = 0.90. what is the minimum tubing diameter that can be used? what commercial steel pipe nominal size is suitable for this purpose if schedule number is 80?

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

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?