Heat equation advice for a small ice rink.

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SUMMARY

The discussion focuses on the feasibility of constructing a small ice rink measuring approximately 2m x 4m using a wooden frame, internal insulation like polystyrene, and a plastic sheet for the surface. Key suggestions include utilizing dry ice at the bottom of the box and incorporating copper pipes with cooled brine to maintain ice integrity. Participants emphasize the need for specific equations to calculate the amount of dry ice required to freeze water, considering insulation thickness. Design alternatives are also encouraged to optimize the ice-making process.

PREREQUISITES
  • Understanding of thermodynamics principles related to phase changes.
  • Knowledge of heat transfer concepts, particularly conduction and convection.
  • Familiarity with materials science, specifically insulation properties of polystyrene.
  • Basic mathematical skills for applying equations related to heat transfer and freezing point calculations.
NEXT STEPS
  • Research the heat equation and its application in phase change scenarios.
  • Learn about the thermal properties of dry ice and its effectiveness in freezing water.
  • Investigate the design and efficiency of insulated ice rink systems.
  • Explore alternative cooling methods for ice rink construction, such as using glycol instead of brine.
USEFUL FOR

This discussion is beneficial for engineering students, DIY enthusiasts, and anyone interested in constructing small-scale ice rinks or studying thermal dynamics in practical applications.

Stevensam2009
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Hi everyone,

I am a Cybernetics student and as part of a project I need to determine the feasability of building a small ice rink (approximately 2m x 4m)

The plan is to build a frame and exterior (the sides and bottom of a box) out of wood, and have a layer of internal insulation such as polystyrene. A plastic sheet will be the top of the box and the idea is that the water will freeze on top of this. I may also have an insulated lid for the system that is closed when freezing the water.

My lecturer has suggested putting dry ice in the bottom of the box and spraying on water gradually to create the ice, and running copper pipes through the system with cooled brine being pumped through them in order to keep the ice frozen.

I'm not really too sure how to go about determining whether this system will work or not. I would be very grateful if anyone could help me out by suggested what equations are suitable for calculating how much dry ice would be needed to freeze a particular amount of water when the system has insulation with a known thickness, and also some advice on how best to apply such equations. Also, any possible design modifications/alternatives would be welcome.

Thanks in advance,
-Steve-
 
Science news on Phys.org
Forget the fancy stuff. You don't need any pipes or styrofoam. Just build it in Saskatoon. It was -34 C here this morning.

AM
 
I could suggest this to my lecturer, but somehow I don't think that he would let the budget stretch that far.
 

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