07-30-2014, 05:55 PM
One interesting possibility for a heatdump would be the core of a black-hole suprashell. The suprashell could be inhabited, but the civilisation could dump its waste heat back into the black hole. The inhabited portion could be surrounded by a second, refrigerated shell that radiates at CMBR temperatures, which dumps its own waste heat back into the hole.
Hmm; this might work - the black hole could be surrounded by a small fusion disk, generating enough energy to run the civilisation, the suprashell and the refrigeration system. All waste heat from these three systems could be dumped back into the black hole. Would this work, or am I dreaming? The minimum temperature of the whole system would be the black body temperature of the black hole itself, but since it is surrounded by a large radiating suprashell, that temperature could be lowered to CMBR values or beyond.
Hmm; this might work - the black hole could be surrounded by a small fusion disk, generating enough energy to run the civilisation, the suprashell and the refrigeration system. All waste heat from these three systems could be dumped back into the black hole. Would this work, or am I dreaming? The minimum temperature of the whole system would be the black body temperature of the black hole itself, but since it is surrounded by a large radiating suprashell, that temperature could be lowered to CMBR values or beyond.