| CPC B60H 1/00564 (2013.01) [B60H 1/00328 (2013.01)] | 19 Claims |

|
1. An environmental control system for conditioning a cabin of a vehicle positioned in an enclosed air-evacuated environment, the environmental control system comprising:
a first source of medium, the first source of medium including a vessel located on-board the vehicle;
a first inlet for receiving aa first flow of medium from the first source of medium;
a second inlet for receiving a second flow of medium from a second source of medium, wherein the first flow of medium and the second flow of medium are mixed at a mixing point located upstream from the cabin to form a flow of mixed medium; and
a coolant loop having a coolant circulating therein, the coolant loop including a pump for circulating the coolant and at least one heat exchanger, wherein the mixing point of the first flow of medium and the second flow of medium is arranged upstream from the at least one heat exchanger, the coolant being thermally coupled to the flow of mixed medium at the at least one heat exchanger.
|