Chapter 14, Problem 20P

Find the number of degrees in the angle formed by the two parts of thisA-type evaporator coil.

In a reservoir system with a very large accumulation volume for the ideal fluid (water),a) Since the diameter of the ABCDEF outlet pipe is D = 20 cm, the flow rate through the pipe,b) Calculate the velocity, velocity height, relative pressure and pressure heights in the ABCDEF outlet pipe.c) Draw the relative energy and piezometer lines of the system.d) If the relative evaporation pressure of water is pv = -98.5 kPa, what can be z maximum?e) Determine how much the diameter of the outlet pipe can be reduced at most without causing cavitation, with the relative evaporation pressure of water pv = -98.5 Pa and h = 6 m.f) Calculate the critical velocity value for cavitation. Please solve d-e-f questions. (figure in image)

the jet from a standard 30-mm orifice (in a vertical wall) under a 5.6 m. head, strikes a point 1.653 m horizontally and 0.127 m vertically from the center of the contacted section. the discharge is 400 liters in 569 sec. determine the coefficient of velocity.

A small lake with volume 20.0*10^3 m^3 has no natural pollutant sources. However, a sewage pipe discharges sewage containing a pollutant into the lake. Conditions in the sewage pipe are Qs=0.5m^3/s and Cs=100.0mg/L. The polutant is destroyed in the lake with a first-order rate constant of 0.20/day. THe flow rate out of the lake in 5.0 m^3/s. Assume that the lake is well-mixed. a) Calculate the steady-state pollutant concentration in the lake. b) What is the retentiont time for this lake?

.Calculate the stability of the intake box structure for water treatment plant with dimensions (5m long, 5m wide, 10m height). The flooded chamber is inside the box structure along the perimeter of dimensions (4m long, 4m wide, and 10m height ).

Calculate the minimum fluidization velocity for an anthracite bed having following characteristics; d90 = 2.9 mm, ?anthracite = 1600 kg/m3, ?water = 998 kg/m3 at 20°C; µ = 1.002x 10-3 kg/m.sec

Two small vessels are connected to a U-tube manometer containing mercury (relative density = 13.56) and the connecting tubes are filled with alcohol (relative density = 0.82). The vessel at the higher pressure is 2.4 m lower in elevation than the other vessel.

For flow in a pipe with Reynolds number of Re=10^7:

Saturated Surface Dry Weight = 3650.3 g Oven Dry Weight = 3625.5 g Submerged Weight = 2293.0 g. Compute the Absorption Capacity in %.