The bowl is used for making ice cream. The walls of the bowl contain a liquid coolant.The bowl is cooled to –20 °C before the mixture is put in the bowl. The bowl causes the mixture to cool down and freeze.
The bowl is used for making ice cream. The walls of the bowl contain a liquid coolant.The bowl is cooled to –20 °C before the mixture is put in the bowl. The bowl causes the mixture to cool down and freeze.
Coolants work by evaporating to remove heat, so it needs to be quite volatile to evaporate at low temperatures.
Coolants work by evaporating to remove heat, so it needs to be quite volatile to evaporate at low temperatures
Thank you! Sorry for bothering you but may you help me with this question as well? Explain why the different thermal conductivities of metal and plastic are important in the design of the bowl.
Thank you! Sorry for bothering you but may you help me with this question as well? Explain why the different thermal conductivities of metal and plastic are important in the design of the bowl.
I'm guessing there's a diagram - could you post a photo of it?
I'm guessing there's a diagram - could you post a photo of it?
Oops, im on my laptop so im not sure how i get the diagram on here but it is a bowl with an inner metal surface, with a liquid coolant around it and a plastic outer layer. Lol hope that helps xD
Oops, im on my laptop so im not sure how i get the diagram on here but it is a bowl with an inner metal surface, with a liquid coolant around it and a plastic outer layer. Lol hope that helps xD
Plastic is low so the cold doesn’t escape to the surroundings metal is high so the cold reaches the ice cream to freeze it