Weir, upstep and jump
Water with depth y1 flows over a broad-crested weir with height P (where the water depth above the BCW is y2) in a horizontal rectangular channel. Directly downstream of the weir, the channel bottom rises by an amount d above the original channel bottom (d > P) and the water depth becomes y3 and the Froude number F3=2. Further downstream, a hydraulic jump occurs where the water depth becomes y4. If y1 is twice y2, find:
a) Froude number upstream of the weir F1
b) y3/y1
c) d/y2
d) y4/y1
e) P/y1

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.