How do we account for the Reynolds Number in circular conduits versus noncircular conduits?
Q: passes point C, determine the work done by friction on the system over this portion of the motion
A:
Q: 8.) Two-stage cascade refrigeration system uses R-22 as the working substance. The evaporator is at ...
A:
Q: required punch diameter ?
A: Given; Determine the required diameter ?For the following data ; Metal disc diameter, d= 70 mm Thic...
Q: A boiler takes in water at 200 degrees Celsius and 13 MPa (1) and another water at 1.0 MPa (2), and ...
A: At 13 MPa: Saturation temperature→Tsat1=331°C And →hf=1532.43 KJKg and hg=2726.66 KJKg But initial a...
Q: 3- A particle of mass m moves along a frictionless, horizontal plane with speed given by v(x)=k/x, w...
A: Given Data
Q: Define the given terms related to mechanical properties of materials. 1. Impact energy 2. Impact l...
A: As per bartleby guidelines we are allowed to solve only 1st 3 questions if multiple subparts are pos...
Q: • Part A Momber AB han the angular velocty wAN4S rad/s and angular acceleration oA6 rad/s Eoen 1) De...
A:
Q: forecast sales for april 2023 would be
A: Given; Foecast sales and actual sales for a product is respectiveley; Ft=15 Xs=20Exponential con...
Q: Given the following data, calculate tl pressure and balance ratios (externa for both externally acti...
A: D=61.8mmB=52.6mmd=49.2mmF=188N To-Find:- Balanced/unbalanced=?
Q: The shaft of a 7 HP lawnmower is 25mm in diameter and rotates at 1200 rpm. Calculate the shear stres...
A:
Q: Two constant values a and b are both greater than zero, determine the maximum value of the function ...
A:
Q: Show that the mean effective pressure (Pm) for the Otto cycle is given by: - 1 (Pmax – Pmin * CrY){1...
A:
Q: 2. Use the compressibility charts to calculate the temperature of SO2 in a 5 ft3 rigid tank contain...
A: Given: Volume of the rigid tank→V=5 ft3=5×28.31×10-3 m3=0.141 m3 mass of the gas→m=50 lb=50×453.59×1...
Q: Homework: Draw S.F.Ds and B.M.Ds for the following beams: 12 kN/m 40 kN A В 2 m
A:
Q: The acceleration of a rocket travelling upward is given by a = (6 +0.02s) m/s², where s is Determine...
A:
Q: Problem 2 Hinge A stop-block on the edge of the gate at B will break whenever the force reaches 40KN...
A:
Q: 1. The wheel starts rotating from rest, 2) if its angular velocity W as a function of angular positi...
A:
Q: The gearing arrangement suitable for this
A: Given; A 2.7 motor is running at 1850 rev/min Power,P=2.7 kW Running at, N=1850 rev/minIt is to be c...
Q: In each case, calculate the support reactions forces and then draw the free-body diagrams of joints ...
A: Consider the free body diagram for the system.
Q: The gearing arrangement suitable for this
A: Given; Determine gearing arrangement suitable for the given application. Where, Power of motor=2.6 ...
Q: In each case, calculate the support reactions forces and then draw the free-body diagrams of joints ...
A:
Q: N2 gas enters a turbine at P = 275.79 kPa, 130°F and leaves at 101.353 kPa and 80°F. How much heat i...
A:
Q: The bar(AB) is uniform and weighs (loo N). Delermine the reactions ot (A)and CB)when the bar is in e...
A:
Q: 2) Determine the mass of each of the two cylinders if they cause a sag of s equal to 0.85 m when sus...
A:
Q: B- In Fig.B, Determine the reactions at C. C-In Determine 400 N/n 3 m 1 m m
A:
Q: Evaluate whether this refrigerator is possible. The inside temperature is -10degC in the icebox. The...
A: Given Data TH=25°C=298 K Tc=-10°C=263 K COP=7.5
Q: When there is heat loss in a system, how can you increase the work output? a. Increase inlet T at t...
A: Answer: The correct answer is option (a).
Q: the speed
A: Given;' Feed per tooth, f=0.1 mmMilling cutter having,n= 8 teeth Rotation,N=150 rpm
Q: The elastic cord has an unstretched length l0 = 1.5 ft and a stiffness k = 12 lb/ft. It is attached ...
A: As per our guidelines we are supposed to solve only 3 subparts if multiple subparts are asked . Kind...
Q: A power cycle operates between two thermal reservoirs at 1200 K and 400 K, respectively. For each of...
A:
Q: To find the width of a river, a nint
A:
Q: 3. Air in a piston-cylinder assembly expands isentropically from state 1 where T1 = 40 °C to state 2...
A:
Q: An 8,990 lbf tank weighs 14,400 lbf when filled with Fluid X and 15,740 lbf when filled with the sam...
A:
Q: PC World stocks and sells a particular brand of personal computer. It costs the store £ 400 each tim...
A:
Q: A particle at t=0 has the positive xo, the velocity v. is being acted on it by sinusoidal force F=Fo...
A:
Q: student uses DC ammeter in place of AC ammeter, the reading in the DC ammeter will be (a) i l2
A: Answer- Option d) zero
Q: Problem 3. Determine the vertical clamping force at E in terms of the force F applied at the handle....
A:
Q: ht ceing n A strel -200 Garod with a ceculer cross section k5m long Detemine the minum diameter regu...
A: The minimum diameter of the rod required is 18.80 mm or 0.0188 m.
Q: Water flows through 100 mm diameter pipe from A to B. The velocity is 10 m/s, the pressure is 300 kP...
A: GivenPB=400kPazB=2m
Q: 28. A locomotive coupling rod, 2-5 m between centres, is of symmetrical I- section: the outside dime...
A:
Q: Please solve and show your solution on a paper with units in every proceedure. Determine the densit...
A: Answer: The density of air is 0.0578 lbm/ft3.
Q: When motion is the normal component of acceleration is zero. rectilinear O rotational translation cu...
A: It is required to choose correct answer
Q: Determine the length of member AB and its direction by Cartesian position vector from A to B. Fig (1...
A:
Q: 5. Is it possible to use the Bourdon Scale to measure the pressure of gases in the case of flow? And...
A: Bourden scale is fully mechanical device which measure pressure by the deflection of dial attached t...
Q: mechanical advantage for the configuration given is
A: Given; Given configuration mechanical advantage is; Where, Mechanical advantage allows humans to pe...
Q: Part A In Eigure ). w35 kip/ft. Folow the sign convention Delermine the shear force acting at point ...
A:
Q: IDENTIFY THE NUMBER OF ATOMS (CL, C, H, and F) in the Refrigerant R113
A: It is required to determine number of atoms in R113 refrigerant
Q: A pipe carrying steam at 3.0 MPa has an outside diameter of 450 mm and a wall thickness of 10 mm. A ...
A:
Q: A trough with a trapezoidal cross-section, as shown in the figure, contains vegetable oil with densi...
A: Given: Density of the vegetable oil→ρ=940 Kgm3 Acceleration due to gravity→g=9.8 ms2 (a): Because he...
Q: Q4/ By using the transformation of the couple, replace the three couple of fig. by one couple with t...
A: The forces acting horizontally at A and B is, F = 8003 N.
How do we account for the Reynolds Number in circular conduits versus noncircular conduits?
Step by step
Solved in 2 steps with 1 images
- the distinction between closed conduits and open channelsA Thomas meter is located in an air duct of 2 sq ft cross-sectional area. The air weighs 0.083 lb per cu ft, and its specific heat is 0.24. Assume a controlled temperature differential of 5° and heater potential of 110 volts. Plot the velocity as abscissa and amperage as ordinate for veloc- ity 0 to 300 ft per min. Assume constant amperage of 3, and plot tem- perature difference against velocity. Discuss the curves from the stand- point of accuracy of the system.2) A transfer pump delivers water from an on ground to an elevated tank thru a 120m-100mmØ transmission line. The required supply flow rate of the elevated tank is 120gpm. The on ground tank maintains a water level of 2.5m and the pump is located along ground level. The ground elevation of the on elevated tank is 1.2m higher than the level of the pump, the height of the leg of the tank is 13m and the inlet pipe is 2.2m from the top of the leg of the elevated tank. The fittings along the line is given on the table below, determine the WHP, BHP and MHP of the pump if the Pump efficiency is 60% and the Motor Efficiency is 58%. (C=140) Quantity K 0.19 2 Fittings and Valves Gate Valve 90 degree elbow Wye-Strainer 4 0.65 1 2.5 Check Valve 2 Water Meter 1.5 1
- There are three pipes located at an oil refinery in Trinidad that carries process water. You are charged with analysing the flow for plant adjustment purposes. • Pipe 1: water at 70°C flowing through a pipe of 150mm diameter at a volume flow rate of 0.006m³/s Pipe 2: water at 40°C flowing through a pipe of 150mm diameter at a volume flow rate of 0.00036m³/s i. ii. iii. Pipe 3: water at 20°C flowing through a pipe of 150mm diameter at a volume flow rate of 0.00029m³/s Use Reynolds number to define laminar and turbulent flow. Define the critical zone Determine the Reynolds number for the flow in each of the pipes as described above and use it to define the type of flow occurring indicating to the operators the significance of each number.Question B2 - Internal Flow In a large student house in Sheffield, cold water is supplied by the mains water supply at a pressure of 2 bar, gauge, and at a temperature 10°C. A wash basin cold tap is located 3 meters above the mains supply, connected to the mains pipe with a copper pipe of internal diameter 15 mm and length 12 meters. When the tap is opened the flow rate of water out of the tap is 24 litres per minute, creating a Fanning friction factor in the pipe of 0.008. a) Calculate the Reynolds number of the water in the pipe and determine if it is laminar or turbulent. b) Calculate the pressure loss from friction, change in elevation, and hence the pressure of the water just before entering the tap. c) to part b) and state if these assumptions under or over predict the pressure of the water just before entering the tap. Name two assumptions that have been made in order to arrive at your answer6- The following reading were taken during a test on a surface condenser: Mean condenser temperature = 35°C Hot well temperature = 30°C Condenser vacuum = 69 cm Hg Barometer reading = 76cmHg Condensation rate = 16 kg/min Cooling water temperature inter = 20 °C Cooling water temperature outlet = 32.5 °C Flow rate being = 37500 kg/h Calculate: a- mass of air present per cubic meter of condenser b- quality of steam at condenser inlet c- vacuum efficiency d- condenser efficiency (condenser heat transfer effeteness)
- Question B2 - Internal Flow In a large student house in Sheffield, cold water is supplied by the mains water supply at a pressure of 2 bar, gauge, and at a temperature 10°C. A wash basin cold tap is located 3 meters above the mains supply, connected to the mains pipe with a copper pipe of internal diameter 15 mm and length 12 meters. When the tap is opened the flow rate of water out of the tap is 24 litres per minute, creating a Fanning friction factor in the pipe of 0.008. d) If the value were not given, what procedure would be needed to determine the Fanning friction factor?hot tand col lectat 10m 1.50 075 cold 0.50 30 2 34 36 it do temp (deg C) In the above thermosyphon system, cold water at 30° enters the system and gets heated to 36° C by the flat plate collector. The length of the pipe ( ab = cd) is 2.5 m and has a diameter of 150 mm. i) ii) Calculate the friction head for this system Calculate the flow speed. The expansion coefficient of water B= 3.5 x 10* K". soler imadice, GFor Heat transfer through cylinder tube wall, the temperature is to be a linear function of r (radius) of the tube. Select one: O True O False The conductivity of H20 in solid form (ice) is higher than that of H20 in liquid form (water). Select one: O True O False F, (Correction factor for temperature in some heat exchangers) should be 1.0 or greater than 1.0 in some cases. Select one: O True False
- The steady operating point of a piping system is established at the volume flow rate where: OH required > H availableYour second customer wants to determine the required electrical power, which will be used to pump waterwith the following design specifications: The pump loses 3 kW in the form of heat to its surrounding. The inlet and the exit conditions of the water are as indicated in Figure 2. The pipe diameter is 5 cm. P2 = 150 kPa V2= 1 m/s Zz= 105 m Q - 3 kW Motor Welectrical | Water P:= 100 kPa O Vi= 1 m/s Zı= 5 m Figure 2: Schematic for task 2. You must follow the following parts to do your task: Part 1 Derive the steady flow energy equation (SFEE) from the first principles. You are required to show all the steps in deriving the SFEE and using both the principles of mass and energy conversation. Part 2 Produce specific steady state energy equation (SFEE) by stating all the stated assumption in this equipment in order to be used in later stages without further analysis. Then calculate the pump power.Define an isothermal process