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

Lagrange''s mean value theorem, Write some appplications of lagrange''s mea...

Write some appplications of lagrange''s mean value thorem

Environment engineering assignment, Estimate the ground level NO concentrat...

Estimate the ground level NO concentration: a. Directly downwind at a distance of 2 km b. At the point downwind where NO is maximum c. At a point located 2 km downwind and 0.1 km

Designing water storage tank, Question While designing water storage t...

Question While designing water storage tank , has movement joints be installed? Answer While designing water storage tanks , group joints can be set up in similar w

Explain the runoff, Explain the Runoff RUNOFF: Flowing water from preci...

Explain the Runoff RUNOFF: Flowing water from precipitation or snow melt which travels overland by gravity to a depression, stream or other body of water.

AUTOCAD, do you people deal with autocad

do you people deal with autocad

Calculate distance between top and bottom chord of the truss, A W12x58 memb...

A W12x58 member, which comprises a vertical member in a truss span, is subjected to a factored axial compressive force of 163 kips.  The W12x58 section is oriented such that the st

Determine the interdependent phases of investigation, Determine the interde...

Determine the interdependent phases of investigation The following are the interdependent phases of investigation: i)  Stratigraphical survey, ii) Physical survey, and

Theory of structure, whatismeanby shear force and bending moment

whatismeanby shear force and bending moment

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