4. Air at 25 °C and 50 % of RH flows over a water surface measuring 12 m x 6 m at a velocityof 2 m/s. Determine the water loss per day considering flow direction is along the 12 m side.Notes:i. For air; p =1.12 kg/m', c, = 1005 J/kgK, k = 0.026 W/mK, Pr =0.7, v = 15x10“ m/s, Forair-water mixture; DH20-air = 24x10° m²/s.ii. For water;TT2.325 2Psat@rc = 0.782 + 2.962100+ 6.29100

Answered: Image /qna-images/answer/c2407468-10fc-4201-861c-262f1f9dcf74.jpg

Answered: 4. Air at 25 °C and 50 % of RH flows…

4. Air at 25 °C and 50 % of RH flows over a water surface measuring 12 m x 6 m at a velocity of 2 m/s. Determine the water loss per day considering flow direction is along the 12 m side.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.34P

See similar textbooks

Related questions

Q: Water enters at section 1 at 10 m/s with sp gr of 0.998 and alcohol enters sections 2 at 6 m/s with…

Q: For a steady flow of gas in the conduit shown, what is the mean velocity at section 2?

Q: Air at 30 °C and 110 kPa flows at 20 N/s through a rectangular duct that measure 160 mm x 320 mm.…

A: Given data Air temperature = 30°C = 30 + 273 = 303 K Air pressure = 110 kPa Flow rate = 20 N/s…

Q: Q6) The flow-metering device shown consists of a stagnation probe at station 2 and a static pressure…

Q: What power can be delivered by the turbine if its efficiency is 100%? The water flow rate is 0.01…

Q: . In a completely turbulent flow, the head loss a. Increases with velocity b. Increases…

A: Option (B) is correct Increases with velocity squared

Q: 10.6 As shown, air (20°C) is flowing from a large tank, through a horizontal pipe, and then…

A: given data:- air at 20°C length = 50 m velocity = 10 m/s friction factor = 0.015. find the pressure…

Q: The air in a car tire is held at a pressure of 220 kPa (gage) in an atmosphere where the atmospheric…

Q: Air at 17 N/s, 27 deg C, and 106 kPa flows inside a 123 mm x 351 mm rectangular duct, Solve for the…

Q: Part B Taking in your consideration the head losses accumulated by the fluid when flowing in the…

Q: Determine the flow rate of air through an axial bush seal. The outer diameter of the inner cylinder…

A: The given data Outer diameter of inner cylinder = ϕ = 250 mm = 0.25 mClearance = c = 0.2 mm = 0.2 x…

Q: A hose pipe of 75 mm bore and length 450 m is supplied with water at 1.4 MPa. A nozzle at the outlet…

Q: NSWER this, please. With the formula derived and the conditions applied in problem statement # 1,…

A: According to the hydrostatic paradox, the height of water in a container is unaffected by its shape.…

Q: Water at 20°C flows through the piping junction, entering section (1) at 0.1 m3/min. The average…

A: Given figure:

Q: 1. Why we use Reynolds number instead of mean velocity as the criteria to judge the flow state…

A: The Reynolds number is a dimensionless number that judges the flow property that is either the flow…

Q: Helium gas enters a convergent channel with T1=400oC P1=100 kPa and Ma1=0.25. Assuming the flow is…

A: In a subsonic flow, the area of a convergent nozzle decreases as the flow direction changes. We'll…

Q: What power can be delivered by the turbine if its efficiency is 100%? The water flow rate is 0.01…

Q: 120 Q/ calculate the force excreted on the blade by the jet if the angle of deflection 120 and the…

A: Given data: - The deflection angle is θ = 120o. The velocity of jet is V1 = 30 m/s. The flow rate…

Q: 7.56 What is the head loss at the outlet of the pipe that dis- charges water into the reservoir at a…

Q: For a flow throOugh a nozzle ôvfôs = 0 ap/as is increasing ôvfêt = 0 vðv/as = 0 a. b. C. d.

Q: Water is flowing in a long cylindrical tube at a mass flowrate of 0.01 kg/s. If the tube diameter is…

Q: The velocity of a liquid (s.g.=1.96) in a 13-in pipeline is 1.2 ft/s. Calculate the flow in slug/s.

A: Specific gravity of the liquid, SG= 1.96 Diameter of the pipe, D= 13 in= 13(0.0254) m= 0.3302 m…

Q: A nozzle of diameter 20 mm at one end is used to eject water with a 20 m/s of designed velocity.…

A: Given data: The diameter of the nozzle at converged end is d1 = 20 mm. The designed velocity of…

Q: A fluid is flowing in a horizontal pipe 8 in. in diameter with a mean velocity of 10 ft/s. The…

A: (a) Specific weight of water is The total heat can be determined as,

Q: The static head corresponding to a flow velocity of 10 m/S

Q: In turbulent flow, greater mixing and shearing occur. (True or False)

A: Reynolds number: The ratio of inertia force to the viscus force is called Reynolds number. The value…

Q: Calculate the power required to pump sulphuric acid (dynamic viscosity 0.04 Pa s, relative density…

Q: Apple juice at 20°C is siphoned from a large tank using a constant-diameter hose. The end of the…

Q: Water flows through the piping junction, entering section 1 at 20 US gallons/min (1 US gal = 3.78…

A: Given data: Q1=20 US gallons/min=12.62×10-4 m3/sv2=2.5 m/sdh=1 mm Need to determine the exit…

Q: Air at 110°F passes through a -in-diameter orifice having a flow capacity constant of 3.5. If the…

Q: An engine cooling system consists of the following components and associated losses; Engine Block…

A: Answer: The total head loss associated with piping system is 27.79 m. Hence, the correct answer is…

Q: 1. A given pipe first carries water and then carries air at 15°C and atmospheric pressure. What…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: QUESTION 3 A closed tank partially filled with water discharges through an orifice of 12.5 mm…

Q: a) The mass flow rate of alcohol. b) The pressure at section (1) if there is no losses in the…

Q: What power can be delivered by the turbine if its efficiency is 100%? The water flow rate is 0.01…

A: Given:η=100%Q=0.01 m3hL=13.8H=20 mρ=1000 Kg/m3

Q: 23 Apple juice at 20°C is siphoned from a large tank using a constant-diameter hose. The end of the…

A: 2.3) Given: The apple juice is at 20°C is siphoned from a large tank using a constant-diameter…

Q: Air at 28 N/s, 20 deg C, and 106 kPa flows inside a 110 mm x 321 mm rectangular duct, Solve for the…

A: To solve volume flux

Q: Problem 1: Water at 10°C is flowing at 0.075 m*/s. Calculate the weight flow rate and the mass flow…

Q: Water is pumped upwards from a 0.5 m diameter bed consisting of iron oxide particles with a density…

A: Given:D=0.5 mρ=5300 Kg/m3d=1 mm

Q: In a chimney draught, the draught produced is 19 mm of water when the gas temperature is 290°C and…

A: Solution-:

Q: Investigate the mass flow rate of oil inside the Alaskan pipeline, and write a brief report to your…

A: At three locations, near Fairbanks, Paxson and Valdez, Alaska, the gradient configuration of two…

Q: A 3-ft-diameter horizontal duct is used to carry ventilating air into a vehicular tunnel at a rate…

A: Diameter of duct, d=3ft Flow rate of air, Q=9000 ft3/min=900060ft3/s=150 ft3/s Pressure head drop,…

Q: Air at standard conditions flow through the cylindrical drying stack as shown in Fig.3 of wiscous…

A: Given data D1= 2 , Z1= 0 D2= 1 , Z2= 1 Now we need to use continuity equation

Q: On a cavitation test for a pump, water at 23° C flows at a rate of 25L/s through the inlet pipe of…

Q: A steady stream of n-butanol is needed to be fed into the reactor at 40 ̊C. However, the inlet of…

Q: Pure water at 20°C is flowing down an inclined wetted-wall column at a rate of 0.124 kg/s·m.…

Q: Based on the rotor shown below, estimate the mass flow rate through the rotor if the density of the…

A: Given that, density of fluid, ρ=800 kg/m3Height of the blade, B=0.15 m, V2=277 m/sec,α2=30°R2=0.5 m,…

Question

4. Air at 25 °C and 50 % of RH flows over a water surface measuring 12 m x 6 m at a velocity
of 2 m/s. Determine the water loss per day considering flow direction is along the 12 m side.
Notes:
i. For air; p =1.12 kg/m', c, = 1005 J/kgK, k = 0.026 W/mK, Pr =0.7, v = 15x10“ m/s, For
air-water mixture; DH20-air = 24x10° m²/s.
ii. For water;
T
T
2.325 2
Psat@rc = 0.782 + 2.962
100
+ 6.29
100

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

5.4 Evaluate the Stanton number for flow over a tube from the following data: , , , , .
As a process engineer, you are designing a new drinking water treatment plant using conventional treatment process including Two Rapid Mixers as follows: The design flow is 50 million gallons per day (MGD) (1 Gallon = 3.785 L, 1 m³ = 1000 L). The average temperature of water is 5°C with a dynamic viscosity, μ = 1.519 x 10-3 Pa.Sec In each rapid mixer with a square shape, detention time, e = 1 min, water depth H = 13 ft, and power input P = 1.5 kw (1 ft = 0.3048 m, 1 KW = 1,000 W) The equivalent diameter, TE for each rapid mixer is ________ m. TE || AIR 1) 4.1 2) 4.4 3) 4.6 4) 4.8 5) 0.4
A highly viscous liquid is flowing through a vertical tube 0.3 m long and (08/30) mm in I.D. The density of the liquid is 1260 kg/m³ and the mass flow rate is (08 /2) x 10° kg/s. The pressure drop is neglected. a) What is the viscosity in N s/m?? b) - , Check on the validity of your results.
1.) A process fluid (μ = 3 cP, p = 1210 kg/m³) is flowing through a 5.8-cm ID pipe with an average velocity (Uavg) of 2.5 m/sec. Calculate/estimate the following: a) What is the velocity profile from the center of the pipe (r=0 cm) to the pipe wall (r; = 2.9 cm)? b) The length of the pipe (4) is 10 feet. Calculate the pressure drop through the pipe using the Hagen-Poiseuille law. c) Calculate the Reynolds number for this system. d) Is the flow in the pipe laminar or turbulent? e) Estimate the Fanning friction factor (f) in this system. f) What is the pressure drop (AP) in the system if friction is considered?
35. Water enters a heated tube of 2 mm diameter at 30 C and leaves the tube at 60 C. Find the water mass flow for the average Reynolds number of 1000. [Ans.: 0.00564 kg/s].
long. The inlet water temperature is 10 C, and the tube wall temperature is 15 C water temperature. k 0.585, Pr= 9.4, u= 1.31x10*,p= 992kg/m, CP= 4195 j/kg. higher than the water temperature all along the length of the tube. What is the exit %3D Q5//answer one of the following branches e jall al je yal A) cast iron pipe (k=75w/m. °C) air flows inside this pipe at 300°C the inner diameter is 0.06 m, the outer diameter 7cm,it is covered with insulation type glass wool with thick 4cm. with k= 0.055w/m.°C .the ambient temperature 6 °C by free V3. convection with heat transfer coefficient (20w/m2. °C) the heat transfer inside the pipe is 65 w/m?. °C. length of tube (L-2) determine 1-the heat lost from the hot air 2-the temperature drop across the pipe shell 3-the temperature drop across the insulation. 344 14. 1256 and B) Fill the blanks: of the 1. The thermal resistance of a medium depends on medium. 2 All law. pes of convection are governed by 10000, the flow is
B) Water flows in 50 mm pipe, 100 mm long whose roughness is 0.013 mm. If the pressure drop across this length is not exceed 50 kpa. What is the water velocity. p=1000 kg/m³, μ=0.001 pa.s.
2. A turbine is used to produce 2700 hp by expanding the water between points 1 and 2. Water flow rate, static pressures and pipe diameters are given. Calculate the power lost in between point one and two. Note that the static pressure at point 2 is given in vacuum. (SGH =13.6) P1 = 60 psi Q = 150 ft³/s D = 3 ft Section (1) Turbine 10 ft P2 10-in. Hg %3D vacuum D2 = 4 ft Section (2)
) where AP is the static The Hagen-Poiseuille equation for the laminar flow through a circular pipe is: AP pressure drop measured over some length of pipe, L. Use the Hagen-Poiseuille equation and the Darcy-Weisbach equation to derive an expression for the fanning friction factor, f, for laminar flow through a circular pipe where Re is the Reynolds number. Choose one answer from the list below: of= of O None of the above 32 Re 16 Re O f = 64 Re = o f = 32μLc 3 d² 8 Re O f = 16 Re
Calculate the heat transfer Coefficient for hydrogen flowing through a 84.480mm Velochy of 1.95 m/s. Bore with a Average temp is 1200 °C ?
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.
02 h, are 12m. The pump efficiency is 79%, and the pump is driven by an electric motor. A pump moves water @10°C from a lake into a large, pressurized holding tank as shown. The flow rate, Q. is 375 L/min, and the piping system losses, 1) Sketch the setup (simple schematic is good), 2) label the z datum, and 3) identify and label the boundary conditions (P, V, and z) at 1 and 2 for use in a) the General Energy Equation (GEE). Provide values and units for the boundary conditions. Hint: For identifying good locations for boundary conditions, where are the velocities approximately zero? b) Calculate the head added to the fluid, h,, by the pump. Give your answer in units of m. Hint: Be careful with signs in manipulating the GEE. Show as many steps as you need to get your h, equation correct. Calculate the power added to the fluid by the pump in units of kW. () Determine the required electric motor size to drive the pump in units of HP. Prank = 200 kPa Holding Tank Air 6 m Pump Lake