Explain the operating point - pumping system, Civil Engineering

Assignment Help:

Explain the Operating Point - Pumping System

Intersection of the characteristic curve and the system curve. This is the head and flow rate data for the pump "operation". The operating point data (h and Q) are used for the Affinity Laws. For example, if one operating point (h1 and Q1) are know, these values may be used to determine operating points along the same system curve but for a smaller or larger impeller diameter or rpm. 

2309_Operating Point.png

The relationship between h and Q2 is a constant (h/Q2) for all plot points along the system curve. The hf equations include v2 and v1.85, which are related to Q2 by the continuity equation. Also, based on the Affinity Laws, 

h2/h1 = (n2/n1)2 = (Q2/Q1)2   OR,   hf1/ hf2 = (Q1/ Q2)2  

Using the constant (h/Q2) for a system curve, operating point values of h or Q can be used to determine the h or Q values at a different operating point on a different characteristic curve (due to changes in rpm or impeller dia.).


Related Discussions:- Explain the operating point - pumping system

Method of construction of a bored cast-in-situ concrete pile, Q. Method of ...

Q. Method of construction of a bored cast-in-situ concrete pile? Ans. - Bored cast-in-situ concrete pile - A guide casing of 3 to 4 m length is provided on top of the bore hole

Determine the weight of one gallon of ferric chloride, The specific gravity...

The specific gravity of ferric chloride solution equals 1.3.  How much does one gallon of ferric chloride weigh?  Solution:  ρ ferric chloride /ρ water = 1.3       Conver

Cumulative error, diffrence between cumilative compensative error

diffrence between cumilative compensative error

Explain the allowable strength design (asd), Allowable Strength Design (ASD...

Allowable Strength Design (ASD) Process: - Apply service loads with no load factors - Assume linear elastic analysis of structure - Calculated stresses shall not excee

Explain the inventory inspections - inspection of bridge, Explain the Inven...

Explain the Inventory inspections - Inspection of Bridge? These inspections are normally performed following new construction, modifications, or repair to establish as-built or

Function of reinforced concrete infill, Function of reinforced concrete inf...

Function of reinforced concrete infill in marine piling system of steel tubular pile with reinforced concrete infill Reinforced concrete is designed to fill void space inside

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd