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.

i need help with the calculations.  i am messing up something in the math

If a liquid enters a pipe of diameter d with a velocity, v. what will irs velocity at the exit be if the diameter reduces to 0.5d?

A plugged dishwasher sink with the dimensions of 15 in. x 19 in. x 9 in. is being filled with water from a faucet with an inner diameter of 1 in. It takes 210 seconds to fill the sink to its rim. Imagine the plug of the sink leaks. If it now takes 230 seconds to fill the sink to its rim, estimate the mass-flow rate of the leak (in lbm/s). 1.1 X Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. Ibm/s

the black sqaure is delta (change) in pressure Assume that p is a function of average velocity V, pipe length L and diameter D, the pipe roughness e (mean height of roughness of the pipe wall, e.g. in microns), and the fluid density . 1.How many nondimensional parameters are needed to define the nondimensional pressure-drop vs. flow relationship in the pipe? 2. Using (D, , and V) as repeating parameters, derive the nondimensional pressure drop and other required parameters to relate p, V, L, D, e , and .

Calculate pressure loss in a pipe ( d = 55 mm, L = 200 m ), for oil mass flow rate of 133 kg/min. Oil density is 900 kg/m3and kinematic viscosity is ν = 4·10-5 m2/s. The sum of local losses in the pipe is 3,5.  Round off the answer to one decimal digit in kPa, but enter the answer without the unit.

Describe the methodology for obtaining the pump curve in a project, where data are collected at five points with different pressures in the pump (10 psi, 15 psi, 20 psi, 25 psi and 30 psi), where to find these flow rates Q a 1000 ml bottle is used and the time required to fill it is timed,  for each of the pump's five pressure points. The gauge pressure H in meters of water column reached must also be observed in order to construct the HxQ graph of the pump. This entire process is carried out for three different types of piping systems, each with its characteristic pressure drops.

Water enters a fountain through a pipe with a cross-sectional area A₁ at a flowrate Q. The pressure in the inlet pipe is p₁. The water then leaves through a nozzle with a cross- sectional area A2 and at an angle 0, as shown in Figure Q5. Both the inlet and the nozzle are at a height h2, and the jet reaches a maximum height h3. X You may assume that viscosity is negligible. a) Find the horizontal force on the block b) What is the horizontal-component (u₂), vertical component (v₂) and magnitude (V₂) of the velocity of the jet as it leaves the nozzle? = c) What is the maximum height of the jet? You may assume that the horiztonal component of velocity is the same at every point in the jet.

Consider a flow through a pipe - see Figure 12.29 in your textbook. Not all the fluid moves at the same speed, but the fluid at the center moves faster. In a cylindrical pipe of radius R, the flow velocity is given by (1-2/2). v (7) = vo 20 where 20 is a known constant. Here, the direction of the flow is along the axis of the pipe, and ris the usual radial coordinate in cylindrical coordinates. Use the "fluid flow analogy" of Section 22.2 in your textbook to calculate the total volume flow rate, through the pipe. Note that when the velocity is constant the answer is just . A, as given in the textbook. Now, however, the velocity must be integrated over the surface area dy t www Bugun Ũ 2006 ĐÃ, Sö which is mathematically identical to the definition of electric flux. Express your answer algebraically in terms of the quantities given: vo and R. NOTE: to enter answers algebraically, use the equation editor denoted by √ in the menu.

Please can someone help me understand how to find the Hp, Hm, and HL for this equation. Like the steps. I don’t have problem for you to work with but you can come up with one if possible.