V(m/s) Q=2000J ПЛЛЛЛЛ air D=0.1m Tout=? Air at (3.15x10^2) K is entering in a circular pipe at 101325 Pa as shown in Figure. The velocity of the air at the pipe entrance is (5.0000x10^-1) m/s. The diameter of the pipe is 0.1m. Specific gas constant of air is 287 J/kg-K. Specific heat of air is 1000 J/kg-K. Find the outlet temperature if 2000 J of heat is added to the pipe.

V(m/s) Q=2000J ПЛЛЛЛЛ air D=0.1m Tout=? Air at (3.15x10^2) K is entering in a circular pipe at 101325 Pa as shown in Figure. The velocity of the air at the pipe entrance is (5.0000x10^-1) m/s. The diameter of the pipe is 0.1m. Specific gas constant of air is 287 J/kg-K. Specific heat of air is 1000 J/kg-K. Find the outlet temperature if 2000 J of heat is added to the pipe.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

As a test to determine the effective wall roughness of an existing pipe installation, water at 10°C is pumped through it at the rate of 300 L/min. The pipe is standard steel tubing, 40 mm OD x 3.0 mm wall. Pressure gages located at 25 m apart in a horizontal nm of the pipe read 1235 kPa and 849 kPa. Determine the effective pipe wall roughness.
1. Why we use Reynolds number instead of mean velocity as thecriteria to judge the flow state passing through the pipe? 2. Does the ReDL or the ReDU change when the diameter is changed?3. If we replace the pure water with the oil (Newtonian fluids), doesthe lower limit Reynolds number be the same? Why?
Oil whose temperature is constant at 20 ° C (ρ = 886 kg / m3, μ = 0.805 kg / m / s) It flows continuously and fully developed from its length. The pressure at the entrance of this 40 m length is 720 kPa, pressure at its outlet is measured as 101 kPa. Flow is laminar. Volume flow rates, average velocities, Reynolds numbers and Darcy friction factors a-That the pipe is horizontal b-The pipe makes 20 ° counterclockwise with the horizontal c-The pipe makes 15 ° clockwise with the horizontal. Calculate for situations.
The volume flow rate of laminar and fully developed flow in an inclined pipe of length L can be calculated using the formula of Q=[(ΔP-ρgLsinθ)πD⁴]/128μL. When this pipe is placed on the horizontal plane under the same condition, which term of the above expression should be eliminated?
Oil having a density of 833 kg/m3 and a viscosity of 3.3 x 10-3Pa.s is pumped from and open tank to a pressurized tank held at 345 kPa gage. The oil is pumped from an inlet the side of the open tank through a line of commercial steel pipe having an inside diameter of 0.07792 m at the rate of 3.494 x 10-3 m3/s. The length of the straight pipe is 122 m, and the pipe contains two elbows (90°) and a globe valve half open. The level of the liquid in the open tank is 20 m above the liquid level in the pressurized tank. The pump efficiency is 65% Calculate the kW power of the pump.
A light liquid (ρ ≈ 950 kg/m3) flows at an average velocityof 10 m/s through a horizontal smooth tube of diameter5 cm. The fluid pressure is measured at 1-m intervals alongthe pipe, as follows: Estimate (a) the total head loss, in meters; (b) the wallshear stress in the fully developed section of the pipe; and(c) the overall friction factor.
Water at 27.5°C flows at a rate of 2.1 kg/s through a vertical pipe with an internal diameter of 17 mm, where a Pitot tube (with a differential manometer containing mercury at ρHg = 13600 kg/m3) is attached. . When the Pitot tube is positioned at a certain distance from the wall, the manometer reading indicates Δh = 12 cm. What is the velocity of the fluid at this point?
Crude oil has a density of 856kg/m3 and dynamic viscosity of 0.0072Pa-s flow through a 60-mm diameter pipe at a rate of 0.24m/s. Which of the following most nearly gives the friction factor?
Distribution of cooled air in air conditioning system is done by installation of Galvanised Iron (GI) ducting as shown by Figure Q4(a). Air enters a rectangular duct of cross section 20 cm X 30 cm at 1 atm and the temperature of 20 °C. The average velocity of the air inside the ducting is5.0 m/s. The length of the duct is 15 m. Given, ε for GI = 0.000045 m.Disregarding the entrance effect, calculate:(i) The pressure drop(ii) The head loss
A gas (ρ = 0.07088lbm/ft3, μ = 0.04615 lbm/ft-hr) is to be transported through a 550 ft long circular cast iron pipe at a rate of 14ft3/s. If the head loss must not exceed 60ft, determine the velocity of flow, Reynolds Number and Darcy-Weisbach Friction Factor, mass flowrate and minimum required diameter of the pipe
Air is flowing in a circular duct. The air flow rate is Q=2000 ft3/min. The diameter of the duct is D=14 in. (2) Determine the friction loss per 100 ft, hL_________inH2O
A clothes dryer discharges air at 1 atm and 120°F at a rate of 1.2 ft3/s when its 5-in-diameter, well-rounded vent with negligible loss is not connected to any duct. Determine the flow rate when the vent is connected to a 15-ft-long, 5-in-diameter duct made of galvanized iron, with three 90° flanged smooth bends. Take the friction factor of the duct to be 0.019, and assume the fan power input to remain constant.