A fan is installed in a residential building to provide proper ventilation. This fan is connected to a duct with 11.6 cm diameter and provides the average air velocity of 5 m/s. By regulation, the minimum fresh air requirement is specified to be 0.35 air changes per hour (ACH) which means 35% of the entire air contained in a room should be replaced by fresh outdoor air every hour. Determine the flow capacity of the fan in litres/min and what the height of the residential building should be

Q: A garden hose attached with a nozzle is used to fill a 10 liter bucket. The inner diameter of the…

A: Here,Volume flow rate,V= 10 litre50 s=0.2 l/s=(0.2×0.0353)ft3/s=0.00706 ft3/sNow,Mass flow…

Q: 2. At a certain location, wind is blowing steadily at 10 m/s. Determine the mechanical energy of air…

A: iven: v = 10 m/s density = 1.25 kg/m3 diameter = 60 m

Q: Wind blows steadily at 7 m/s into the blades of a wind turbine. Compute the actual electric power…

A: Given data,  V= 7m/s  D= 80 m  So area A = π*802/4 = 5026.55 m2  R= 1.25 kg/m3  n= 30% = 0.3

Q: Inside of a room, the atmospheric pressure measures out to be 100 kPa. A pipe with a diameter of 0.5…

A:

Q: Consider oil flowing through a horizontal pipe at a rate of 3 liter/s. There are two sections of the…

A:

Q: Consider a car that gets 35 mpg on high-rolling-resistance tires and is driven 15,000 miles per…

A: Given that:The car on high rolling resistance tires gives (fuel economy) is E=35 mpgThe fuel cost is…

Q: A cylindrical 125 cm high and 89 cm diameter, as given by the figure the inside of the tank is…

A:

Q: The ventilating fan of the bathroom of a building has a volume flow rate of 30 L/s and runs…

A: Given data: Density of air ρ = 1.2 kg/m3 Volume flow rate = V = 30 L/s

Q: An open vent vertical cylindrical tank 2 m. in diameter and 4 m.

A:

Q: is used to pump brine whose density is 1,158 kg/m3 at a rate of 0.37 m3/s from a depth of 344 m. By…

A:

Q: 2. Water flows in a pipe of 23-cm diameter with an average velocity of 0.73 m/s, the diameter of the…

A:

Q: A fluid is flowing in a 0.784m x 0.73 m channel at the rate of 3.15 m/s and has a specific volume of…

A:

Q: 1. A desktop computer is to be cooled by a fan whose flow rate is 0.34 m³/min. Determine the mass…

A:

Q: 2. At a certain location, wind is blowing steadily at 10 m/s. Determine the mechanical energy of air…

A:

Q: 4. Through a refinery, fuel oil is flowing in a pipe at a velocíty of 7.5 m/s and a pressure of…

A:

Q: A 4-meter-diameter cylindrical tank contains oil and water as shown in the figure. At the bottom of…

A: Given Data The diameter of an orifice is: d=0.1 m The diameter of the tank is: D=4 m The height of…

Q: A river flowing steadily at a rate of 167 m3/s is considered for hydroelectric power generation.…

A:

Q: hile traveling on a dirt road, the bottom of a car hits a sharp rock and a small hole develops at…

A: Calculateing the intial velocity of the gasoline at hole-u=2ghWhere-g= accerleration due to…

Q: Consider a device with one inlet and one outlet. If the volume flow rates at the inlet and at the…

A: As the system has only one inlet and outlet and the volume flow rates are considered to be same the…

Q: Consider the flow of oil with p = 870.15 kg/m³ and µ = 3.93 kg/m•s in %3D a 37.6 cm-diameter…

A:

Q: A lake of water is to be used to generate electricity by installing a hydraulic turbine-generator 50…

A:

Q: Consider oil flowing through a horizontal pipe at a rate of 3 liter/s. There are two sections of the…

A:

Q: A pump draws 20 kW of electrical power while pumping oil with a density of 780 kg/m^3 at a flow rate…

A: electric power = 20 kW Density = 780 kg/m^3  Flow rate = 0.3 m3/s Inlet diameter = 7 cm Outlet…

Q: A cylindrical well is 2m in diameter and 12 m deep. If there is 3m of water in the bottom of the…

A: Given that: Diameter of the well = 2 m Depth of the well = 12 m Depth of water inside the well = 3 m…

Q: The drinking water needs of an office are met by large water bottles, as shown in Figure 2 below.…

A: Given: The diameter of the plastic hose is d=0.6 cm=0.6 x10-2 m=0.006 m, The density of water is…

Q: Determine the rate of flow of water through a pipe of diameter 10 cm and length 60 cm when one end…

A:

Q: An airplane with a 1.8m diameter propeller travels in still air with a density of 1.14 kg/m3 at…

A:

Q: Underground water is being pumped into a pool whose cross section is 3m x 3m while water is…

A:

Q: Water is flowing in a pipeline 600 cm above datum level has a velocity of 10 m/s and is at a gauge…

A: According to Bernoulli's Equation, for steady and incompressible flow with negligible friction, the…

Q: The ventilating fan of the bathroom of a building has a volume flow rate of 50 L/s and runs…

A: Given: The density of the air is ρ=1.20 kg/m3. The volume flow rate of the air Q=50 L/s. The time…

Q: A fan that consumes 20 W of electric power when operating is claimed to discharge air from a…

A:

Q: A hydraulic turbine is used to generate power by using water in a dam. The elevation difference…

A: Option A is correct.

Q: A pipe of diameter 10 cm carries water at a velocity of 5 m/s. Determine (a) the volume flow rate in…

A:

Q: A cylindrical 125 cm high and 89 cm diameter, as given by the figure the inside of the tank is…

A:

Q: The calculation of power from moving fluid has the following parameters: Volume flow rate = 10 +/-…

A:

Q: The drinking water needs of an office are met by large water bottles.  One end of a 0.6-cm diameter…

A: Solution: d = 0.6 cm

Q: Consider a wind turbine that is situated in an area that has steady winds. The turbine rotates at 16…

A:

Q: The driving force for fluid flow is the pressure difference, and a pump operates by raising the…

A: As per given data, del P = 5 kpa, power input = 7 kw. maximum volume flow rate Q (m^3/s) = ? for…

Q: At a certain location, wind is blowing steadily at 10 m/s. Determine the mechanical energy of air…

A: Given data: Velocity of wind, v = 10 m/s. The diameter of the wind turbine, d = 70 m. The overall…

Q: A pump moves water (at 15.6 °C) from a reservoir according to the figure below. The head loss in the…

A: The schematic diagram is Given data, hL = Head loss in the pipe = V22g D = Diameter of the pipe =…

Q: The diameters of an impeller of a centrifugal pump at inlet and outlet are 30 cm and 60 cm…

A: A device which converts mechanical energy into pressure energy with the help of centrifugal force is…

Q: At a certain location, wind is blowing steadily at 10 m/s. Determine the mechanical energy of air…

A:

Q: When a fan is operated at 1200 rpm the input power is 5 kW. If the speed is increased to 1300 rpm…

A: Power P=5 kWN1=1200 rpmN2=1300 rpmTotal pressure(h) =250 m of airρair=1.20 kg/m3So P=ρairgh…

Q: Hw : The ventilating building has a volume flow rate of 30 Lis and runs continuously. kg/m,…

A:

Q: For storimg purposes, water is to be moved from one pool to another that is 50 ft above the first…

A:

Q: A D0 = 10-m-diameter tank is initially filled with water 2 m above the center of a D =…

A: Given, The diameter of the tank, D0=10 m The diameter of the valve, D=10 cm=0.1 m The length of the…

Q: An air compressor handles 8.5 m3/min of air with a density of 1.26 kg/m3 and a pressure of 1 atm,…

A:

Q: In the tube in image 1, a certain amount of water flows, with areas A1 = 10 cm2 and A2 = 5 cm2.…

A: Write the areas at both points 1 and 2.   A1=10 cm2A2=5 cm2   In this problem, the average velocity…

Q: Air flows through a pipe at a rate of 120 L/s. The pipe consists of two sections of diameters 22 cm…

A:

Hydronics