What do you mean by dilution method, Mechanical Engineering

Assignment Help:

Q. What do you mean by Dilution method?

Dilution methods are more suited especially in hilly streams and torrents where current meter measurements are not feasible on account of excessive velocity and turbulence, small depth of flow, moving gravel and coarse materiel etc. In chemical dilution method, the chemical may be injected suddenly only once or it may be injected continuously. The former is called sudden injection method and the latter constant injection method. The apparatus and chemical to be used, specifications of techniques of injection, sampling and also the methods of analysis.

Radio tracer technique is similar to chemical dilution methods. A known quantity of suitable radio tracer is dumped and after it is thoroughly mixed some distance, downstream, the number of click caused by the tracer in its passage are monitored on the Geiger counter at the downstream station on the river bank. If the total number of counts is N, it varies inversely as the rate of flow Q since flow with lower velocity will allow more time for counts to accumulate on the register. On the other hand N varies directly as A, the quantity of radio tracer. Thus N = AF/Q or Q = AF/N.  In this expression F is the proportionality factor which is the characteristic of the isotope, the counter and the geometric relationship of the stream.


Related Discussions:- What do you mean by dilution method

Write importance of molliers diagram, Describe the key terms i. Write t...

Describe the key terms i. Write two differences between boiler and turbine. ii. Compare the rankine cycle with carnot cycle in terms of efficiency and work ratio iii.

Types of coated electrodes, TYPES OF COATED ELECTRODES Following are the ...

TYPES OF COATED ELECTRODES Following are the types of coated electrodes: a. Cellulosic electrodes b. Rutile electrodes c. Iron powder electrodes d. Low hydrogen e

Compute the outside diameter of the shaft, Compute the outside diameter of ...

Compute the outside diameter of the shaft: A hollow shaft of diameter ratio is 0.4 is needed to transit 600 kW at 120 rpm. The maximum torque being 20% greater than the mean t

General resource models, General Resource Models In  computer  control...

General Resource Models In  computer  controlled scheduling,    material,  machine handling  equipment,  tooling  and  buffer  space  should  be comprised. The explicit consid

Distribution of shear force, Determine distribution of shear force, bending...

Determine distribution of shear force, bending moment and stress due to bending in the simply supported beam shown in the figure below, the beam self-weight is included in the unif

Stress, how do i determine the operational factor of safety in tension

how do i determine the operational factor of safety in tension

Calculate the angular acceleration of the wheel, Calculate the angular acce...

Calculate the angular acceleration of the wheel: A locomotive wheel of radius r = 0.8 m is illustrated in Figure. At the given instant, the speed of the locomotive is 1.6 m/se

Bore - thermodynamics, Bore - Thermodynamics: The inner diameter of en...

Bore - Thermodynamics: The inner diameter of engine cylinder is called as bore. It can be measured by a vernier calliper or bore gauge. As engine cylinder wears out with the p

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