I am making a peltier cooler to keep my beer cold while watching TV The cooler is open, means the drink will be kept on a tray that is open to surrounding and keeps it chilled
My design is simple, just a heatsink+fan assembly from computer, a peltier chip and a 12V adapter. The peltier chip is stuck on the heat sink along with some thermal grease to increase thermal conductivity. The peltier chip is connected to the power supply through a 12V adapter (my peltiers rated power is 15.4V).
I havent assembled the components yet, but i am confused on what to use as the material for tray on which the drink will be kept. Problem is, i wanted my cooler to chill 2-3 glasses and hence i want a large tray. So if i just keep one drink on the tray, a large area of tray will just waste energy since it is not insulated. What material shall i use as the tray on the cold side of peltier so that:
a) There is minimum heat transfer to surrounding and maximum heat transfer to drink. Means the material must be able to hold heat for a long time. It must have high conductivity, and low convection and radiation rate.
Also as a side question, most mugs, glasses etc has a bottom where only the circumference will touch the surface. This has a low contact area. How do i make an arrangement so that the contact area is higher for any glass that i keep on the tray?? :/
Thanks for any replies
My design is simple, just a heatsink+fan assembly from computer, a peltier chip and a 12V adapter. The peltier chip is stuck on the heat sink along with some thermal grease to increase thermal conductivity. The peltier chip is connected to the power supply through a 12V adapter (my peltiers rated power is 15.4V).
I havent assembled the components yet, but i am confused on what to use as the material for tray on which the drink will be kept. Problem is, i wanted my cooler to chill 2-3 glasses and hence i want a large tray. So if i just keep one drink on the tray, a large area of tray will just waste energy since it is not insulated. What material shall i use as the tray on the cold side of peltier so that:
a) There is minimum heat transfer to surrounding and maximum heat transfer to drink. Means the material must be able to hold heat for a long time. It must have high conductivity, and low convection and radiation rate.
Also as a side question, most mugs, glasses etc has a bottom where only the circumference will touch the surface. This has a low contact area. How do i make an arrangement so that the contact area is higher for any glass that i keep on the tray?? :/
Thanks for any replies