When the pipe length and flow rate are known, the pipe diameter can be calculated for a particular pressure drop. 2g = 0,0225 500 0.2 6,42 29,81 = 117 m hf = f L d v2 2g = 0,0225 500 0.2 6,42 29,81 = 117 m The head loss for an inclined pipe is hf = p g +z1 z2 = p g +Lsin10o. As a result, p = g(hf 500sin 10o) = 9009,81(11787) = 265103 is the pressure drop.
Calculate the flow rate. Determine the flow rate before sizing and selecting a centrifugal pump.
Calculate the static head.
The friction head should be determined.
Calculate the total number of HEAD Choose a pump.
TO CHOOSE A PUMP WE NEED TO KNOW 2 BASIC VALUES: FLOWRATE AND LIFT PRESSURE OR HEIGHT (OR HEAD) A: area of the pipe π x (d/2)2 [m2] v: speed of liquid (water) in the pipe [m/s] Q:
#BBD0E0
»
You must know four things before you can choose a pump that will meet your needs: 1) the total head or pressure it must operate against, 2) the intended flow rate, 3) the suction lift, and 4) the fluid properties
Learner's Ratings
4.5
Overall Rating
77%
8%
8%
4%
3%
Reviews
S
SHOAIB AKHTAR
5
It's very important for ac technician
S
Syed Sabeel
5
Sir where can I get this drawing auto cad final drawing
Z
Zakir Ullah
4
I love this course. Everything is made clear.
M
Md Akbar
5
HVAC TECHNICIAN knowledge video
K
Kazi Mohd Qamar
4
so far,the course and content is good,teacher is looking a bit unexperienced and anxious
,you need to do practice by yourself too.mail me qaziqamar487@gmail.com for 2017 databook of ISHRAE
A
AJANI KEYUR ASHOKBHAI
5
Excellent
G
Ganesh Reddy Bodigam
5
Helpfull for all beginners and HVAC engineers..
W
Wajed
5
excellent course
P
Parvez Ahmed Purzgar
5
It's a perfect course for those who wish to have a good understanding about the HVAC and its different systems. Simply explained, well presented and good course material. I am enjoying it.
Share a personalized message with your friends.