Creating fluid flow in an insulated system
Creating fluid flow in an insulated system
(OP)
I'm searching for ways to create a liquid flow to increase heat transfer.
The coolant temperature is -15 celcius so as the ambiant temperature. Problem is that this system is insulated and therefore I cannot use an outside electrical current to power a pump.
Here are my stats:
Create a medium flow to increase heat transfer of about 30-40%
Volume of 4 liters of fluid coolant
Operating temperature of the system -15 celcius
Flow must last 3 minutes
Here are the solutions I found:
Use a small water pump and some batteries (problem is batteries are weak at those temps)
Use some sort of mechanical system that would create a flow (maybee spring system like those used in toys)
Put the system on a spring and give it initial movement, spring will oscillate and keep the flow for some time.
Any suggestions will be appreciated!
BeerBaron
The coolant temperature is -15 celcius so as the ambiant temperature. Problem is that this system is insulated and therefore I cannot use an outside electrical current to power a pump.
Here are my stats:
Create a medium flow to increase heat transfer of about 30-40%
Volume of 4 liters of fluid coolant
Operating temperature of the system -15 celcius
Flow must last 3 minutes
Here are the solutions I found:
Use a small water pump and some batteries (problem is batteries are weak at those temps)
Use some sort of mechanical system that would create a flow (maybee spring system like those used in toys)
Put the system on a spring and give it initial movement, spring will oscillate and keep the flow for some time.
Any suggestions will be appreciated!
BeerBaron





RE: Creating fluid flow in an insulated system
RE: Creating fluid flow in an insulated system
RE: Creating fluid flow in an insulated system
RE: Creating fluid flow in an insulated system
Stanier: Gas/Liquid accumulater... what exactly do you mean?
BeerBaron
RE: Creating fluid flow in an insulated system
An alternative might be a ferrous plug in your pipe with a mag lev device on the outside to acceleratoe the plug thus moving the liquid.
RE: Creating fluid flow in an insulated system
BeerBaron
RE: Creating fluid flow in an insulated system
The thermosiphon sounds like a very nice solution though at this scale I think I would simply source some heat pipes...They are commercially available and need only a few degress of TD to work reasonably well.
But either system requires Temp Diff and specific orientation/ installation arrangements....Where's the TD?