### Determine the main dimensions of a fan, knowing if   1. Flow rate (Q) = 250 m^3/min; 2. Differential pressure = 75 mmwc 3. Specific air weight = 1.2 kgf/m^3 at 20°C and 760 mmHg 4. Rotation = 700 rpm

### Based on the study of pressure losses in pumps and pipelines: Q122. Find the catalogued model of a suitable centrifugal pump for the following parameters: Upsetting height of 1570 mwc Suction height of 108 mwc Power 447 hp

Please attached photo. I have theoretically solved this using only equations I can’t find a way to solve without the mass flow rate or area of the inlet as a given.

Calculations involving retention time involve the following formula, T =, where V is volume and Q is flow rate. Often times, you will be required to calculate the volume of more than one tank and determine a rate of flow, given a total retention time. Tank 1 Tank 2 Let's assume that the total retention time for the entire system is 55 minutes, and we want to know the inlet flow, given the dimensions of tank 1 are : 14m x 10m x 3 m, and tank 2 are: 5m x 10m x 3 m. Calculate the inlet flow.

Please show your complete solution. Thank you! Air flows in a steady flow manner through a converging tube. At the inlet the pressure is 690kPaabs and the density is 0.838 kg/cu.m. If air enters with a volume flow of 125 cu.m per min at the rate of 94 m/min and the exit section has a diameter of 350mm, determine a.) the mass flow rate, kg/min b.) the diameter of the entrance section and c.) the exit velocity. Assume that the density is constant.

A pump is tested in the laboratory and the following data were obtained. Determine the pump efficiency. Torque Rotational speed = Inlet pressure = Outlet pressure Volume flow rate= = Height to inlet gage = Height to outlet gage Inlet flow line = Outlet flow line = Fluid T @ P1 P2 = 206.8 kPa = 0.063 m³/s = 0.61 m = 1.52 m 10-nominal schedule 40 8-nominal schedule 40 Z1 Z2 = 47.5 J = 3600 rpm = 17.25 kPa octane

(Q26) A horizontal Venturimeter with inlet radius 110 mm and throat radius of 55 mm is used to measure the flow of water. The pressure  at inlet is 20 N/cm2 and the vacuum pressure at the throat is 27 cm of mercury. Find the rate of flow. The value of cd may be taken as 0.9

Given: Rotor dia. = 4m; Power coefficient, Cp = 0.35; Ave. wind speed = 6 m/s; Air density = 0.124 kgs^2/m^4; Generator efficiency = 90%. Solve for the 1) Swept Area, 2) Density of Air in kg/m^3, 3) Output power of the windmill, and 4) Available power of the windmill.

A liquid with a specific gravity of 4.7 and a viscosity of 1.3 cp flows through a smooth pipe of unknown diameter, resulting in a pressure drop of 0.183 lbf/in² for 1.73 mi. What is the pipe diameter in inches if the mass flowrate is 5,900 lb/hr?A. 3.64 inB. 0.44 inC. 5.74 inD. 0.005 in

PROCESS INSTRUMENTATION AND CONTROL In a close tank, the close  tank specifications are as follows: X=100 inches, Y=10 inches, d=120 inches ,specific gravity of tank liquid is 0.8 and specific gravity of seal liquid is 0.9.      Find   (i) Span                   (ii) Equivalent head of water at maximum level.                  (iii) Equivalent head of water at minimum level