A kitchen chimney, made of HINDWARE with exhaust pipe dia. of 90 cm supplies exhaust gas having flow rate of 1200 80 m3 /hour. Length of exhaust pipe is 5m. Now BAJAJ Company wants to design a chimney to crater same flow rate but rectangular type with aspect ratio of 1.5. The length of exhaust pipes for both cases is assumed to be 5m. Also consider same friction factor for both the pipes as 0.182.Determine (i) the pressure drop for the HINDWARE duct. (ii) Considering the same pressure drop for the BAJAJ duct, determine its sides.

A kitchen chimney, made of HINDWARE with exhaust pipe dia. of 90 cm supplies exhaust gas having flow rate of 1200 80 m3 /hour. Length of exhaust pipe is 5m. Now BAJAJ Company wants to design a chimney to crater same flow rate but rectangular type with aspect ratio of 1.5. The length of exhaust pipes for both cases is assumed to be 5m. Also consider same friction factor for both the pipes as 0.182.Determine (i) the pressure drop for the HINDWARE duct. (ii) Considering the same pressure drop for the BAJAJ duct, determine its sides.

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.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.4P: 5.4 Evaluate the Stanton number for flow over a tube from the following data: , , , , .

See similar textbooks

Similar questions

A pump is being supplied with water from an open tank. The water level of the source reservoir is 6m below the pump center line. The length of the pipe (suction line ) is 10m and 50cm inner diameter with (coefficient of friction of .025). The atmospheric pressure of that altitude is 101325 Pa, and pump flowrate is 30O L/s. IF the vapor pressure of 20 °C water is at 2400 Pa, what is the NPSHa of the pump in meter? Your answer
Find the discharge in nach pipe shown in fgure. The head available at A is 20m of water and the friction factor for each pipe may be taken 0.03. 100 mm diameter, 200m length B Atmosphere 100 mm diameter, 100m length 50 mm diameter
The suction diameter of 60mm reads 2psi vaccum and 50mm diameter discharge with 250kpag. The suction water level is 5m above water pump center line and discharge water level is 25m above the pump center line. The total head loss at suction and discharge is 2m. If discharge is 0.01m3/s, find the horsepower needed to pump the water for 80% pump efficiency. ANSWER: 8.15 hp
A pump has a suction condition of 50mm Hg vacuum pressure, 100mm diameter pipe and discharged condition of 250kpa at, 90mm diameter. The discharge tank is 50m elevation and the suction is 5m below the pump center line. If the discharge is 0.20 m3/s, find the pump efficiency for 260kw brake power. Answer: 74.32%
A centrifugal pump(efficiency 86%) lifts water through a total height of 42m from reservoir to discharge. Pumping is through 300m of 75mm diameter pipe at the rate of 20li/s. If pipe friction factor, f = 0.025, what KW is required? Answer: 9
2. In the gasoline transfer facility the storage tank to the consumption tank, you want to install a pump to circulate a flow rate of 40. The 400m long pipe is cast iron 150mm in diameter and consists of a check valve, a gate valve and 2 commercial medium radius elbows. The Kg consumption tank is pressurized to 2.5 pressure cm gauge. Determine the power Additional data, pressure drop factors: pump drive in KW if the pump performance is 68%. . Check valve X = 1.8 • Open gate valve K, = 0.25 • Medium radius commercial elbow K = 0.75, for each elbow Outlet storage pond angles alive k, = 0.5 • Entrance to the consumption tank K₂ = 1 • Friction factor in pipes / = 0.025
watu enters a tube (d=6omm) ta rate of oiol ka/s with temp. of 2öc . A constant het flux of 2000 wii was applied. What rs the tube length requined to obtain an exit temp. of 8c.what is the surface temp.at the outlet of the tube, where fully daveloped conditions maybe assumed to exist -
The density of water is looe ty/m? and the e Plective bwlk modulus (klis 1.06 Gpa. in a 5omLony pipe Carries water at 1.86 nls. that calculate DP in Mpa. AP=pv pelton wheel the velocity of ) In the incident jet relative to the bucket the water jet velocity is is 6.28 m Is, 23.54 m/s and volumetric flov rate f the jet 109 m/s. Tn an ideal itnation (Cy, * and cos© are all eqnal to !) m/s. In an ideak 2it wat ion Hint V= V, -U = V, -wR DV = (V, -U) (1+k coso) mee W = 27N 60 raA /s
The initial condition of air in an air compressor is 98kpa and 27C and discharges at 500kpa. The bore and stroke are 360mm and 390mm, respectively with percent clearance of 7% running at 300rpm. Find the mass flow of air in kg/s at suction. ANS. 0.19108
3. A centrifugal pump of 350 mm diameter running at 1000 r.p.m. devclops a hcad of 18 metres. The vanes are curved back at an angle of 30° to the langent at outlet. If the velocity of flow is constant at 2-4 m/s, find the manometric efficiency of the pump. (Ans. 76-4%)
The suction diameter of 60 mm reads 2 psi vacuum and 50 mm diameter discharge with 250 kpag. The suction water level is 5 m above water pump centerline with friction head loss of 0.5 m at suction pipes and discharge water level is 25 m above water pump centerline and head los at discharge pipe is 3 m. If discharge is 0.01 m^3/s, find the horsepower needed to pump the water for 70 percent pump efficiency.
The suction water level of a reservoir A is 5m above pump centerline and discharge water level is 50m above pump centerline. The discharge is 2m with suction pipe of 100mm diameter and 90mm diameter discharge pipe. The total head loss is 50% of the velocity head a suction pipe. If pump runs at 360rpm, find the torque developed by the shaft of motor if pump efficiency is 76%. ANSWER: 5.4 KN-m