Determine discharge coefficient, Chemistry

Assignment Help:

The determination of k is not a strait forward exercise. Model it from first principles using Bernoulli's equation would produce a square root relationship and would probably have little relationship to the real system. The rate of discharge could be measured at different heads, but would require diverting the flow into a separate receptacle for a given time period. It is possible to log the level with time, as the tank drains freely through a fully open drain valve and while the pump is off. Knowing the area at each level ( see drawing of insert Figure 5) it is possible to determine the instantaneous volume against time. This has been done using the areas of the top and bottom prismatic sections of the tank and is shown in Figure.

1009_Determine discharge coefficient.png

Figure Plot showing example of instantaneous volume as V tank drains (using top and bottom areas of prismatic sections)

By determining the flow rate at the top and bottom of the tank, we can plot the graph shown in Figure. We have made the assumption that QL is directly proportional to the head. This is not true in actual fact, but will simplify the analysis and controller design. Figure 3 should be interpreted with care. Between about 10 and 20 seconds, the area is changing as we are in the V section and neither curve represents the instantaneous volume. After about 25 seconds, we are within the range of the outlet hole diameter, so effectively the orifice changes to channel like flow, but is complicated by the valve and pipe work arrangement.


Related Discussions:- Determine discharge coefficient

Molar conductivity, What do you understand by molar conductivity at infinit...

What do you understand by molar conductivity at infinite dilution

NMR Spectrum , NMR Spectrum of benzyl methyl ether

NMR Spectrum of benzyl methyl ether

Electroanalytical technique, Electroanalytical technique: An electroan...

Electroanalytical technique: An electroanalytical technique is based on the measurement of one or more electrical quantities and their magnitudes could be correlated with the

S Block, What are the physical propeties of S block ?

What are the physical propeties of S block ?

Discuss about the term - photolithography, Discuss about the term - Photoli...

Discuss about the term - Photolithography Photolithography (also known as optical lithography), which is one of the kinds of lithography is a process used in micro fabrication

.Dienes, Physical properties of dienes

Physical properties of dienes

Analgesics - narcotics and non-narcotics, Analgesics - Narcotics and Non-na...

Analgesics - Narcotics and Non-narcotics Analgesics: Drugs which are relieved or decrease pain are known as analgesics. These are of two types, (i) Narcotics: These are majo

What is activation energy, The difference among Threshold energy and averag...

The difference among Threshold energy and average energy of the molecules is known as activation energy.

#mixtures, #what are the types of mixtures

#what are the types of mixtures

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