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

Steel truss 15 m span, types of truss of 15 m cantilever with 1000 kg on fr...

types of truss of 15 m cantilever with 1000 kg on free end. May be steel or any lightest material aluminium anodized truss. thanks

Define underwater inspection of steel or cast iron structure, Define Underw...

Define Underwater Inspection of steel or cast iron structures? Underwater Inspection of steel/cast iron structures may be carried out as under: i. Start the inspection at sp

Doors and windows, important considerations in case doors and windows

important considerations in case doors and windows

#title.steel desogn, Tension memebers example for a two channel connected t...

Tension memebers example for a two channel connected to a gusset .find the tensile capacity

Concrete, what are the appropriate methods of concreting

what are the appropriate methods of concreting

Soils, how to classify soils materials

how to classify soils materials

Effects of sewer sediment on hydraulic performance, Q. Effects of sewer sed...

Q. Effects of sewer sediment on hydraulic performance? The presence of sediment in sewers has contrary effects on the hydraulic performance of sewers. In case of sewage flow ca

The ferromagnetic materials loos property at , The ferromagnetic materials ...

The ferromagnetic materials loos property at which point? Answer: At Curie point it loos property

Perform a personal skills audit, Perform a Personal Skills Audit Your ...

Perform a Personal Skills Audit Your employer wishes you to become an effective and confident self-directed employee. With this in mind they have set you some tasks. These wil

Determine the required area of steel, A rectangular concrete beam is subjec...

A rectangular concrete beam is subjected to a factored moment (Mu) of 345 kip*ft.  The beam has the following properties: f'c = 5500 psi fy = 60,000 psi h = 39 in

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