WebConcrete Technology MCQ Practice Questions (Civil Eng) Set 7. Water flows through a convergent mouthpiece of diameter 4 cm at convergence under a head of 3 metres. If the maximum vacuum pressure is 9 metres of water, the maximum diameter of divergence, to aviod separation of flow, is: Options are : 6 cm. WebThe jacket is fitted to the cylindrical section only and extends to a height of 1 m. The spacing between the jacket and vessel walls is 75 mm. The jacket is fitted with a spiral baffle. The pitch between ... taking the friction factor from Figure 12.24. As the hydraulic mean diameter will be large compared to the roughness of the jacket ...
A jacketed, agitated reactor consists of a vertical cylinder 1.5 m ...
WebFlow area, As = (24 – 19) 337 x 10-3x 106 x 10-3 = 7.44 x 10-3 m2 (12.21) 24 Hydraulic mean diameter, de = (1.10/19) (242 - 0.917 x 192) = 14.2 mm (12.2) Velocity, us = 50000/3600 x 1/992.2 x 1/7.44 x 10-3 = 1.88 m/s Re = 992.2 x 1.88 x 14.2 x 10-3 = 40,750 (4.1 x 104) 0.65 x 10-3 From Fig 12.29 for 25% baffle cut, jh = 3.0 x 10-3 Nu = 3.0 x 10-3 … WebMaterial is Stain less steel due to application of fluid friction, this material is selected and diameter of the ball. DB = mean diameter of the spring = 22.35mm. Design of spring for intake valve Material again from the same text book the spring material is selected. A. Design procedure. SEP1) Assume that wire diameter, d=2mm and index c=8 define escrow account
Hydraulic Diameter Neutrium
Webwhole jacketed area with the effectiveness factor (E) from Kneale(1969), typically 0.8–1. Nu and Re are based on the hydraulic mean diameter, d e (13): 6. Condensing service. A condensing coefficient in a jacket should be extremely high compared to the process side and normally α s−1 (14) ~ 0. A conservative estimate can be obtained from the Web4 okt. 2024 · Start your tape measure at the center of the back of the jacket, right below the collar. Then, run it down the length of the sleeve, ending your measurement at the cuff.>. 6. Find your shoulder width. With the coat still facing back side up, flatten the shoulders and measure the distance between the 2 shoulder seams. WebEquation (1.3) is represented in Figure 1, originally found by Nikuradze and later completed by Colebrook and White, in which the friction factor, l, is the function of the Reynolds Number, R e, and the third parameter is the relative surface roughness of the pipe material, e /d. Supposing n = 1 m/s mean velocity, d = 100 to 500 mm diameter, e = 1×10-4 m … feeling healthy teeth