Adding a substance to water to reduce its specific gravity for pump testing
Adding a substance to water to reduce its specific gravity for pump testing
(OP)
Hello all,
I am working on a project involving diesel fuel and a venturi jet pump. I would like to use a water pump with something added to the water to reduce the specific gravity of the mixture to match diesel, which has a specific gravity of 0.85. I am curious if anyone has done something similar and has any suggestions. The additive must not be flammable.
Thanks for any help
I am working on a project involving diesel fuel and a venturi jet pump. I would like to use a water pump with something added to the water to reduce the specific gravity of the mixture to match diesel, which has a specific gravity of 0.85. I am curious if anyone has done something similar and has any suggestions. The additive must not be flammable.
Thanks for any help
RE: Adding a substance to water to reduce its specific gravity for pump testing
RE: Adding a substance to water to reduce its specific gravity for pump testing
RE: Adding a substance to water to reduce its specific gravity for pump testing
These will be about the right density and they have flash points up in the range of 200C (depends on viscosity).
This can be modeled well, testing at different density and viscosity is not commonly done.
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P.E. Metallurgy, consulting work welcomed
RE: Adding a substance to water to reduce its specific gravity for pump testing
If its designed to use diesel why not use diesel? I can't see why not at present.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Adding a substance to water to reduce its specific gravity for pump testing
But I don't know how flamable ucuhuba butter is.
Probably expensive too.
A black swan to a turkey is a white swan to the butcher ... and to Boeing.
RE: Adding a substance to water to reduce its specific gravity for pump testing
In my initial research, I pretty much only found alcohols that had a low enough specific gravity that could be added to lower water's specific gravity to match diesel's.
The density of the fluid involved does indeed matter in the efficiency of a jet pump. One factor of jet pump performance are loss coefficients based on Reynold's Number.
I have been testing with diesel, but a I want something that is easier to work with (no fumes, smell, less corrosive, can be used with more pumps, and won't give me a diesel rash haha).
It sounds like mineral oil with a similar viscosity is the best option as of now.
RE: Adding a substance to water to reduce its specific gravity for pump testing
A black swan to a turkey is a white swan to the butcher ... and to Boeing.
RE: Adding a substance to water to reduce its specific gravity for pump testing
Here is a silicone oil at 5cSt.
https://www.clearcoproducts.com/pure-silicone-low-...
They have lower viscosities as well, you can mix and match to equal diesel at 3-4cSt
RE: Adding a substance to water to reduce its specific gravity for pump testing
RE: Adding a substance to water to reduce its specific gravity for pump testing
RE: Adding a substance to water to reduce its specific gravity for pump testing
RE: Adding a substance to water to reduce its specific gravity for pump testing
And real expensive.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed