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The project is to build a box which can keep the warm water warm in the cold temperature and cool water cool in hot temperature.
Any ideas what I should do to my box?

2006-11-21 07:41:06 · 8 answers · asked by Daniel 2 in Science & Mathematics Physics

8 answers

You might want to consider using a double wall, with air in between the inner and outer wall. If I remember correctly, air is a very poor heat conductor. Of course, like someone suggested, vacuum would be better, but that's a bit of a stretch. Air would probably work almost as good. The walls should be made out of thermo-insulants (ebonite, I believe) and/or high heat capacity materials. Covering the outside of the box in aluminium foil would help, if the heat was generated by a source of light (like the sun), but would useless if the heat came from somehwere else. Likewise, painting the box in black would help the water inside stay warm. Covering the inside of the box with aluminium is as useless as having knees on a fish. Unless you decide you want a lightbulb in the box, for whatever purpose, I'd say it's a waste of time and materials.

2006-11-21 08:22:50 · answer #1 · answered by Victor B 4 · 1 0

Yes, Build your box around a thermos container. If your professor doesn't have a sense of humor then you need to insulate the inside of your box with a Styrofoam container. A thermos container insulates a fluid with a vacuum and the inside portion is made of mirrored glass which helps to reflect the heat or cold back within the container. So basically you want to build a thermos container, hence my first answer.

2006-11-21 09:22:17 · answer #2 · answered by James M 1 · 0 0

You should insulate the box. If the box is big enough, you can buy glass fiber "bats" that are usually used to insulate building walls by stuffing in between inside and outside walls. You can use a box cutter to slice the bats into shapes that are the six sides of your box. Also glue aluminum foil to the issie and outside. Aluminum foil reflects heat as well as light. Thus it will reflect heat from warm water back into the box, and it will reflect heat back to the outside to prevent outside heat from warming the cold water.

2006-11-21 07:47:54 · answer #3 · answered by steve_geo1 7 · 0 0

This all depends on the materials you have available. Certainly, you want an insulator, like rubber or styrofoam, to prevent the transfer of heat. If you can, create a vacuum between the walls of your container. This would be the best way to do it, but would require some machines.

2006-11-21 07:48:15 · answer #4 · answered by M 4 · 0 0

Wrap the section with hot water in foil, and the section with Cold water in foil. The hot will stay hot and the cold will stay cold


I think

2006-11-21 07:44:23 · answer #5 · answered by eclipse 2 · 0 0

your anwser is use styrofoam in the box it will do just that for a period of time same thing they use in coffee mugs and stuff already.

2006-11-21 07:46:35 · answer #6 · answered by Keith B 2 · 0 0

One word: insulation

2006-11-21 07:53:57 · answer #7 · answered by Goyo 6 · 0 0

i am guessing styrafoam.......it worked for me on keeping an ice cube cold for 1 day.....the ice cube lived 2 days......................not sure about the heat though.

2006-11-21 07:43:25 · answer #8 · answered by Anonymous · 0 0

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