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{[Mass Effect]} Presentation of the Mass-Flow Calorimeter

Scritto da Mathieu Valat on .

After almost a year of work, the Mass-Flow Calorimeter (MFC) system is finally ready. It's been a great challenge and it was far from simple to make.

In principle it is meant to precisely measure the quantity of energy given by a sample. And because we are aiming at precision here, it was necessary to leverage painstakingly multiple expertises. Moreover, the bench will be used for many configurations and for other experiments where we are shooting for great precision. There is even an extension for another experiment to be run at the same time.

There have been one key help in the design, mounting, configuring and setting-up this big bench : Jean-Paul Biberian. His most valuable support was offered throughout the critics that are absolutely necessary for a scientific work to be done properly. His casualness of sharing his scientific expertise make the ride so much rewarding, I am so thankful!

Here is a detailed presentation of this bench.

I am taking advantage of this blogpost to thank our supporters, you, who helped us and enabled us to make this system.

Go Open-Science!

 

Mathieu Valat

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0 #2 Sanjeev 2015-08-23 10:19
Excellent work !
The excess heat has no place to hide with such a setup.
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0 #1 bob 2015-08-21 12:55
Mathieu: Very impressive effort.

I think your apparatus offers a great opportunity to compare and calibrate other calorimeter ideas. One that I believe should be considered is the conduction calorimeter quantumheat.org/.../...

A very simple conduction calorimeter could be constructed as two concentric Al tubes separated by a small air gap (the insulation layer). Temp sensors could go on ID of outer tube and OD of inner tube yielding delta T across the air gap.

To test this calorimeter against your mass flow one it would be a matter of using a joule heater coil inside the conduction calorimeter inner tube and then inserting the whole assembly inside your mass flow calorimeter. Input power to the joule heater should match the heat loss in your mass flow calorimeter and should yield a linear delta T vs input power on the conduction calorimeter.

In any case keep up the good work and I look forward to results from the new device.
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