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

Point of virtual fixity of lateral loading for piles, Point of virtual fixi...

Point of virtual fixity and critical length of lateral loading for piles Some engineers can get confused about the difference between the two terms which are point of virtual

Theory of structure, How to convert uniformly varying load to point load

How to convert uniformly varying load to point load

Road pavements, Road Pavements: Pavements constitute an important part...

Road Pavements: Pavements constitute an important part of road as they withstand the traffic loads and transmit them to the earthen embankment. A study of the types of pavemen

Trusses design, does the truss pitch relate to the building''s height?

does the truss pitch relate to the building''s height?

Radial contouring, How we can find R.L. of instrument station without movi...

How we can find R.L. of instrument station without moving of instrument.

What are the various types of tiles, Q. What are the various types of tiles...

Q. What are the various types of tiles available in the market for floors and walls? What basic precautions would you take for their laying and choosing the type, colour and siz

Structural analysis 1, derive equation of radial pressure and loop stresses...

derive equation of radial pressure and loop stresses of thick cylinder

Explain the categories of air pollution, Explain the Categories of Air Poll...

Explain the Categories of Air Pollution 1. Ambient Air Pollution Out door environment o Involves complex array of sources and pollutants, meteorological transport of th

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