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Fluid Control Research - Project Ideas

08/21/2009 10:57 AM

Hi guys,

I am a trainee in FCRI (Fluid Control Research Institute, India). I am a Mechanical Engineering graduate.

I have to do a project and have decided to do it related to flowmeters.

I would appreciate any and all the input that you can provide to me. The time frame is around 2 month. Also I am interested in CNG measuring. So, if anyone is able to suggest any project related to that it will be very helpful. They have got excellent labs and infrastructure here, so please dont hesitate in your suggestions.

I am thinking of doing something that can be really helpful to the Engineering Industry in the future and need all the input I can get from my fellow professionals (that means you all :) ).

Some of the topic that were suggested by others were -

1. Effect of upstream piping on Sonic flowmeters

2. Effect of damage and continuous use on orificemeter performance

3. Effect of different flow conditions (of different fluids) on Coriolis mass-flowmeter

4. Designing and fabricating a new efficient (shape) of Averaging pitot tube.

Thank you for ur time :)

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Guru

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#1

Re: Fluid Control Research - Project Ideas

08/22/2009 2:11 AM

Develop a mass flow meter for CNG. Being mass flow it will be appropriate for CNG where pressure variations can be automatically corrected. The calorific value being mass based you may even calibrate flow in terms of K Cals flow rate.

http://www.epiflow.com/

http://www.fluidcomponents.com/Industrial/Products/MassFlowMeters/ProdST75.asp

http://www.foxthermalinstruments.com/intro-to-thermal.php

Bioramani

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#2
In reply to #1

Re: Fluid Control Research - Project Ideas

08/22/2009 1:13 PM

Yeah that does seem to be a good idea.

Thank you ! I will check it out !!

By the way did I post this in the wrong section or something ? Replies seem to be less

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#3

Re: Fluid Control Research - Project Ideas

08/25/2009 12:55 AM

I wish to suggest something which might appear to be rather mundane. I am near you at Trivandrum. The domestic water meters in use here work fine until the water authority people dig up the lines for some reason. Then for a time we have a flow of muddy water, and then the meter stops. The water authority with the arbitary powers it wields (like all government authorities in this country) then asks us to buy a new meter. It is a simple matter to clean out the meter and get it going again, but they will not permit it. Now if you can come up with a meter which is immune to ocassional mud flows it would save us poor consumers a lot of money and trouble. The meter need not work when the water is muddy. It just needs to start working again when the water clears up.

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Guru

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#4
In reply to #3

Re: Fluid Control Research - Project Ideas

08/25/2009 1:14 AM

Been for long in Trivandrum. Fortunately did not face that problem. Since the post is about a flow metering project and the suggestion is more to do with maintenance (which is important) one can look at a simpler solution for that

Will not a line filter solve that issue?

bioramani

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#5
In reply to #4

Re: Fluid Control Research - Project Ideas

08/25/2009 1:54 AM

A filter would stop the water flow. Now thankfully only the metering is stopped by muddy water. Please do not let the authorities get the idea of a filter.

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#6
In reply to #5

Re: Fluid Control Research - Project Ideas

08/25/2009 8:50 AM

The problem is that the consumer is not allowed to repair the meter. It is usually sealed. However a filter with a bypass is legal. If the filter gets choked open the bypass, clean the filter, replace, shut the bypass and be back in action. bioramani

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#7
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Re: Fluid Control Research - Project Ideas

08/25/2009 11:05 PM

In fact, water supplier, to whom consumer is paying has responsibility to supply clean water. If supplier is not supplying clean water, consumer should demand it and should go in for PIL to allow filter and bypass line. In case filter gets choked, the water will bypass the meter and water will be available free of charge through bypass line. This will happen if water supplied is muddy, which is supplier's responsibility. In such case supplier will not get the money because of bypassing the meter and automatically get fined.

But, one needs to go in for PIL and struggle for it. Not so easy /nor so difficult in India.

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#8
In reply to #7

Re: Fluid Control Research - Project Ideas

08/26/2009 1:52 AM

In India it is the local governtment body that supplies water. My suggestion was to bypass the filter alone. The meter always remains online to avoid legal tangles.

bioramani

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#9
In reply to #8

Re: Fluid Control Research - Project Ideas

08/26/2009 2:04 AM

If only filter is bypassed, again muddy water will go through meter. This is just a delaying the problem.

If PIL (Public Interest Litigation) against local body is filed, court may give the Justice

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#10
In reply to #9

Re: Fluid Control Research - Project Ideas

08/26/2009 4:42 AM

It takes all of two minutes to remove a line filter element clean it and put back. If one is that pressed for time a spare element can be kept. A more expensive option is to have a bypass filter as well. We actually did this for a campus water supply pump in Trivandrum. The water always goes throughone or the other filter.

I have had enough harrowing time at Trivandrum with Attimari and such.

Very difficult to get legal remedies.

bioramani

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#12
In reply to #6

Re: Fluid Control Research - Project Ideas

08/27/2009 12:35 AM

I wish it could be so simple. But I don't think so. If you are allowed to remove the filter (up stream of the meter), you could easily get a supply of free, un-metered water for, say, gardening; by leaving the filter out and fixing a hose connection at that point. No: the authorities are not likely to permit that. The real solution is for the water supply people to ensure mud-free supply. But if you live here you know that is not practical. So I still think a muddy water meter is the best bet.

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#13
In reply to #12

Re: Fluid Control Research - Project Ideas

08/27/2009 1:22 AM

Mass flow meters that can work with muddy water are already available but expensive. Highly unlikely to be adopted by any water supply authority.

bioramani

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#11
In reply to #3

Re: Fluid Control Research - Project Ideas

08/26/2009 10:05 PM

Well, thank you for your contribution ....

Though it is a good problem, the only practical solution would be to do as suggested in the posts above (ie. use a filter - subjected to the governing laws ofcourse)

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