The radiator array itself is made from flexable interlocking tubes with high thermal transparency. When filled with hot liquid, they can help radiate heat away into space. When liquid is pumped out of them the tubes contract, and reduce the size of the radiator system until it is tucked away in its housing.
The array has limited self-repair capabilities, can can automatically close off punctured areas while still maintaining its heat dissipation qualities.
The array requires fluid moving throuh it in order to effectively dissipate heat. The base of the radiator array contains a single massive pump capable of pushing the volume of fluid needed for effective cooling.