Water is flowing through a gate valve (K_v = 0.2). Calculate the value of b in units of mm. The pipe is horizontal. The flow is steady and fully developed. Over a 3-meter pipe length upstream of the valve, the EGL drops by a = 430 mm. The pipe ID is 0.25 m and the friction factor in the pipe is 0.03. Choose the closest answer (mm): 

(a) 180, 

(b) 240, 

(c) 320, 

(d) 340, 

(e) 360.

Transcribed Image Text:

a= 430 mm Energy grade line 3.0 m Pipe, D= 0.25 m, f=0.03