Two oil tanks are connected by two 9-m-long pipes, as in fig. p6.26. pipe 1 is 5 cm in diameter and is 6 m higher than pipe 2. it is found that the flow rate in pipe 2 is twice as large as the flow in pipe 1. (a) what is the diameter of pipe 2? (b) are both pipe flows laminar? (c) what is the flow rate in pipe 2 (m3/s)? neglect minor losses.

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

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?