Refrigerator car
device · 1878 · Electric age
A cooled railway car for perishable goods.
What it is made of
- Thermal insulation — has part. An insulated body.
- Compressor — has part. A refrigeration unit.
- Bogie — has part. Bogies.
Principles and materials it uses
- Ice house — uses. At first — ice.
- Vapour-compression cycle — uses. Later — refrigeration machines.
- Wood — is made of. Ice-cooled cars were wooden with insulation.
- Steel — is made of. The frame and bogies are steel.
What it is a kind of
- Rail vehicle — is a kind of. A railway car.